Gene expression

5411 results

  • Gene expression

ROT3P::GUS ... in leaves, histochemical analysis indicated that the ... expression ... was ubiquitous in all cell layers, including epidermis, palisade tissue, and the spongy layer

Kim GT, Tsukaya H, Saito Y, Uchimiya H - Changes in the shapes of leaves and flowers upon overexpression of cytochrome P450 in Arabidopsis

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  • Gene expression

ROT3P::GUS ... expression ... was ... in ... the spongy layer

Kim GT, Tsukaya H, Saito Y, Uchimiya H - Changes in the shapes of leaves and flowers upon overexpression of cytochrome P450 in Arabidopsis

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  • Gene expression

ROT3P::GUS ... we observed ... in leaves

Kim GT, Tsukaya H, Saito Y, Uchimiya H - Changes in the shapes of leaves and flowers upon overexpression of cytochrome P450 in Arabidopsis

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  • Gene expression

ROT3P::GUS ... expression ... was ... in ... epidermis

Kim GT, Tsukaya H, Saito Y, Uchimiya H - Changes in the shapes of leaves and flowers upon overexpression of cytochrome P450 in Arabidopsis

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  • Gene expression

in leaves, histochemical analysis indicated that the ROT3 promoter was expressed more strongly in distal, mature regions than in proximal, immature regions

Kim GT, Tsukaya H, Saito Y, Uchimiya H - Changes in the shapes of leaves and flowers upon overexpression of cytochrome P450 in Arabidopsis

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  • Gene expression

ROT3P::GUS ... expression ... was ... in ... palisade tissue

Kim GT, Tsukaya H, Saito Y, Uchimiya H - Changes in the shapes of leaves and flowers upon overexpression of cytochrome P450 in Arabidopsis

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  • Gene expression

YAB3 is detected in the abaxial regions of the developing leaves

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB2 also appears to be expressed abaxially in cotyledon primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... expression extending through more than half of the cell layers in leaf primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL, YAB2 and YAB3 are expressed in a qualitatively similar manner at the mRNA level, although expression levels differ dramatically ... FIL is expressed at a high level, YAB3 at a moderate level, and YAB2 at a low level

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... Expression is initially in a small group of subepidermal cells in the central region of leaf anlagen

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In most leaf primordia of phb-1d homozygotes, FIL expression is undetectable

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... expressed in abaxial regions of above ground lateral organ primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB2 ... expressed in abaxial regions of above ground lateral organ

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL is initially expressed in the transition-stage embryo (between the late globular and heart stages) in a small number of subepidermal cells in the central region of the cotyledon anlagen

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In leaves, FIL is more broadly ... expressed

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In phb-1d/+ heterozygotes ... FIL expression domain is reduced, usually consisting of only a couple of cell layers on the abaxial side of the leaf primordium (Fig. 5B), rather than in four cell layers as observed in wild type

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

in developing embryos ... initial detection of YAB3 is at the early heart stage

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 ... expressed in abaxial regions of above ground lateral organ primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 ... Expression ... appears to be in ... three layers of spongy mesophyll

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... No signal is detected in differentiated leaves

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

in leaf primordium ... As the central cells begin differentiating, FIL expression declines, but remains high in the marginal abaxial regions

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In differentiating leaves FIL mRNA can be detected ... in layers destined to become spongy mesophyll

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In differentiating leaves FIL mRNA can be detected in the abaxial epidermis

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL, YAB2 and YAB3 are expressed in a qualitatively similar manner at the mRNA level, although expression levels differ dramatically ... FIL is expressed at a high level, YAB3 at a moderate level, and YAB2 at a low level

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 ... expressed in abaxial regions of ... cotyledons

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

Expression of YAB2 ... is detected in the abaxial regions of the developing leaves

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In differentiating leaves FIL mRNA ... in the ... adaxial epidermis expression ... is undetectable

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In phb-1d/+ heterozygotes FIL expression is detected in most leaf primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... expression is throughout the abaxial domain of the cotyledon ... primordia ... walking-stick ... stages

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB2 ... expressed in abaxial regions of ... cotyledons

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... expressed in abaxial regions of ... cotyledons

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... expression is throughout the abaxial domain of the cotyledon primordia ... U ... - ... shaped stages

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

As leaves fully differentiate, YAB3 expression declines to an undetectable level

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 expression ... with initial expression occurring in leaf anlagen

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... expressed in abaxial regions of ... leaves

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... As leaf primordia emerge, expression becomes restricted to the abaxial regions

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... By mid-heart stage expression is throughout the abaxial domain of the cotyledon primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

In differentiating leaves FIL mRNA ... in the palisade mesophyll ... expression ... is undetectable

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB2 ... expressed in abaxial regions of ... leaves

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL, YAB2 and YAB3 are expressed in a qualitatively similar manner at the mRNA level, although expression levels differ dramatically ... FIL is expressed at a high level, YAB3 at a moderate level, and YAB2 at a low level

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 ... in developing embryos ... expressed abaxially in cotyledon primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL expression is detectable in at least two incipient leaf primordia prior to their emergence from the flanks of the apical meristem

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... gradually fades as the embryos mature

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL expression is not altered in ... leaves ... of yab3-1 mutants

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 ... Expression appears to be in ... the abaxial epidermis

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 ... expressed in abaxial regions of ... leaves

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

YAB3 ... As leaf primordia emerge from the apical meristem, expression is confined to the abaxial regions of developing primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... By early heart stage expression has expanded to include cells on the abaxial side of the emergent cotyledon primordia, but does not immediately extend to the tip of the cotyledon primordia

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

FIL ... expression is throughout the abaxial domain of the cotyledon ... primordia ... torpedo ... stages

Siegfried KR, Eshed Y, Baum SF, Otsuga D, Drews GN, Bowman JL - Members of the YABBY gene family specify abaxial cell fate in Arabidopsis

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  • Gene expression

CycD3 transcripts were still observed in 35S::ANT leaves, but not in control

Mizukami Y, Fischer RL - Plant organ size control: AINTEGUMENTA regulates growth and cell numbers during organogenesis

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  • Gene expression

ANT mRNA accumulated in leaf

Mizukami Y, Fischer RL - Plant organ size control: AINTEGUMENTA regulates growth and cell numbers during organogenesis

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  • Gene expression

AtEXP10::GUS expression ... disappeared altogether as the leaf matured

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

AtEXP10::GUS expression ... later ... was restricted to the vasculature of the petiole and leaf blade

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

AtEXP10::GUS also was notably expressed in growing trichomes

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

We estimate ≈200-fold more AtEXP10 mRNA in young leaf blades ... as compared with corresponding mature tissues

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

We estimate ... ≈35-fold more AtEXP10 mRNA in young petioles as compared with corresponding mature tissues

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

As leaf development progressed, AtEXP10::GUS expression began in the base of the petiole and gradually extended toward the whole midrib

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

The first expression detectable by AtEXP10::GUS occurred at the base of the emerging first two true leaves but not of the cotyledons

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

AtEXP10::GUS ... low level of staining in the shoot meristem was observed

Cho HT, Cosgrove DJ - Altered expression of expansin modulates leaf growth and pedicel abscission in Arabidopsis thaliana

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  • Gene expression

LEP expression was significantly increased in let compared to wild type

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

LEP is only expressed in young shoots of wild-type plants

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

In wild type no LEP expression could be detected in the cotyledons

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

detected LEP expression in stipules

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

In wild type no LEP expression could be detected in the ... non-expanding (old) leaves

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

LEP expression ... restricted to the leaf blades

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

LEP expression was strongest in very young leaf blades and became weaker upon further expansion of these blades

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

In let ... LEP expression was detected in all organs analysed

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

In wild type, LEP was expressed throughout very young leaf primordia

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

LEP was very weakly expressed in wild type and could only be detected in young shoots

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

LEP ... staining in all cells constituting the young leaf primordia

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

In ... 35SDE-LEP overexpressors LEP expression was detected in all organs analysed

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

LEP expression could also be detected in young developing leaves

van der Graaff E, Dulk-Ras AD, Hooykaas PJ, Keller B - Activation tagging of the LEAFY PETIOLE gene affects leaf petiole development in Arabidopsis thaliana

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  • Gene expression

clf-18 ... leaves ... contain ... AP3 floral genes

Serrano-Cartagena J, Candela H, Robles P, Ponce MR, Pérez-Pérez JM, Piqueras P, Micol JL - Genetic analysis of incurvata mutants reveals three independent genetic operations at work in Arabidopsis leaf morphogenesis

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  • Gene expression

icu2 leaves ... contain ... AG ... floral genes

Serrano-Cartagena J, Candela H, Robles P, Ponce MR, Pérez-Pérez JM, Piqueras P, Micol JL - Genetic analysis of incurvata mutants reveals three independent genetic operations at work in Arabidopsis leaf morphogenesis

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  • Gene expression

clf-18 ... leaves ... contain ... AG ... floral genes

Serrano-Cartagena J, Candela H, Robles P, Ponce MR, Pérez-Pérez JM, Piqueras P, Micol JL - Genetic analysis of incurvata mutants reveals three independent genetic operations at work in Arabidopsis leaf morphogenesis

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  • Gene expression

Ectopic transcription of AP1 was detected in ... clf-61 allele

Serrano-Cartagena J, Candela H, Robles P, Ponce MR, Pérez-Pérez JM, Piqueras P, Micol JL - Genetic analysis of incurvata mutants reveals three independent genetic operations at work in Arabidopsis leaf morphogenesis

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  • Gene expression

Ectopic transcription of AP1 was detected in icu2

Serrano-Cartagena J, Candela H, Robles P, Ponce MR, Pérez-Pérez JM, Piqueras P, Micol JL - Genetic analysis of incurvata mutants reveals three independent genetic operations at work in Arabidopsis leaf morphogenesis

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  • Gene expression

icu2 leaves ... contain ... AP3 floral genes

Serrano-Cartagena J, Candela H, Robles P, Ponce MR, Pérez-Pérez JM, Piqueras P, Micol JL - Genetic analysis of incurvata mutants reveals three independent genetic operations at work in Arabidopsis leaf morphogenesis

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  • Gene expression

Using in situ hybridization ... SHOOTMERISTEMLESS (STM) ... as2 ... se ... strong expression in the meristem

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

In wild-type plants carrying the KNAT2::GUS construct, staining was detected in meristems but not leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT2::GUS ... Leaves of as1 ... revealed GUS expression in the sinuses

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

as1 se ... double mutants expressed KNAT2::GUS strongly in the sinuses of lobes

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization ... SHOOTMERISTEMLESS (STM) ... se ... strong expression in the meristem

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-1 line was detected ... not in leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization, we could not detect SHOOTMERISTEMLESS (STM) expression in leaves of ... as2 ... se

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as1 ... not detected ... in the youngest leaf primordia

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Expression of KNAT1 RNA in meristems of ... as2 ... appeared similar to that of wild- type plants

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

In wild-type plants carrying the KNAT2::GUS construct, staining was detected in meristems

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as2 ... se ... not detected ... in the youngest leaf primordia

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

In as2 mutants, KNAT1::GUS-1 expression was detected ... occasionally in patches on the leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-18 ... expression was strong in the petioles ... of as1 leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Sporadic expression of KNAT1 was detected in the basal part of young leaves of ... as1 se

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization ... SHOOTMERISTEMLESS (STM) ... as1 ... se ... strong expression in the meristem

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization, we could not detect SHOOTMERISTEMLESS (STM) expression in leaves of as1 ... se

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as1 ... se ... expression was confined to the peripheral zone

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

as1 se ... showed expression of KNAT1::GUS in leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT2::GUS ... Leaves of ... as2 ... revealed GUS expression in the sinuses

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT2::GUS expression appeared normal in se mutants

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-19 expression in pkl-15 single mutants was indistinguishable from that of wild type

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

as2 se ... showed expression of KNAT1::GUS in leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-18 ... Weak GUS expression was also seen in the sinus of the occasional lobes that formed on as1 ... leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

In as2 mutants, KNAT1::GUS-1 expression was detected in the petioles of leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-18 ... Weak GUS expression was also seen in the sinus of the occasional lobes that formed on ... as2 leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Sporadic expression of KNAT1 was detected in the basal part of young leaves of ... as2 se mutants

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as2 ... se ... expression was confined to the peripheral zone

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Sporadic expression of KNAT1 was detected in the basal part of young leaves of ... as2

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

In as2 mutants, KNAT1::GUS-1 expression was detected ... in the main vein

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Expression of KNAT1 RNA in meristems of ... as1 ... se ... appeared similar to that of wild- type plants

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

In as2 mutants, KNAT1::GUS-1 expression was detected ... sometimes in secondary veins

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-19 ... GUS expression in as1-1 pkl-15 plants was ... less intense throughout the leaf

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-19 ... GUS expression in as1-1 pkl-15 plants was concentrated in the sinus region

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as1 ... expression was confined to the peripheral zone

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-1 line was detected in the ... shoot meristems

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Sporadic expression of KNAT1 was detected in the basal part of young leaves of as1

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as2 ... expression was confined to the peripheral zone

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Expression of KNAT1 RNA in meristems of ... as1 ... appeared similar to that of wild- type plants

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as1 ... se ... not detected ... in the youngest leaf primordia

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT2::GUS ... Leaves of ... as2 single mutants revealed GUS expression ... slightly in the basal portion of the leaf petioles

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization ... SHOOTMERISTEMLESS (STM) ... as1 ... strong expression in the meristem

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization, we could not detect SHOOTMERISTEMLESS (STM) expression in leaves of as1

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Expression of KNAT1 RNA in meristems of ... as2 ... se ... appeared similar to that of wild- type plants

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization ... SHOOTMERISTEMLESS (STM) ... as2 ... strong expression in the meristem

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization, we could not detect SHOOTMERISTEMLESS (STM) expression in leaves of ... se

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

as2 se ... showed expression of KNAT1::GUS in leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

Using in situ hybridization, we could not detect SHOOTMERISTEMLESS (STM) expression in leaves of ... as2

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1::GUS-18 ... expression was strong ... in the vasculature of as1 leaves

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT2::GUS ... Leaves of as1 ... single mutants revealed GUS expression ... slightly in the basal portion of the leaf petioles

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

as2 se double mutants expressed KNAT2::GUS strongly in the sinuses of lobes

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

KNAT1 ... as2 ... not detected ... in the youngest leaf primordia

Ori N, Eshed Y, Chuck G, Bowman JL, Hake S - Mechanisms that control knox gene expression in the Arabidopsis shoot

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  • Gene expression

transgenic lines in which NAC1 was ... silenced ... DBP ... showed ... a reduction

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

auxin treatment increased ... AIR3 expression levels in wild-type plants

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

Whole-mount in situ hybridization of 7–12-d-old seedlings detected ... tissues actively expressing the NAC1 gene ... the primordia of the developing leaves

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

transgenic lines in which NAC1 was ... silenced ... AIR3 ... showed ... a reduction

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

transgenic lines carrying a GFP-NAC1 fusion gene expressed under the control of a dexamethasone-inducible GVG promoter ... In the absence of dex, no fluorescence was observed (Fig. ​(Fig.2A,2A, panel 2), however, in the presence of dex, the GFP–NAC1 was localized exclusively to the nucleus

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

NAC1 was expressed at a moderate level in 2-wk-old seedlings, however, in dissected tissues of mature plants it was expressed at high levels in roots, at low levels in stems and leaves, and not at all in flowers or siliques

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

transgenic lines in which NAC1 was overexpressed ... AIR3 ... showed an increase

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

Whole-mount in situ hybridization of 7–12-d-old seedlings detected ... tissues actively expressing the NAC1 gene: the expanding cotyledons

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

auxin treatment increased ... NAC1 ... expression levels in wild-type plants

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

construct containing a 2-kb DNA fragment upstream of the NAC1 coding region was fused to a β-glucuronidase (GUS) reporter gene, and several independent transgenic lines were analyzed ... In the leaf primordia, a signal, which diminished as the leaf matured, was also observed

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

a construct containing a 2-kb DNA fragment upstream of the NAC1 coding region was fused to a β-glucuronidase (GUS) reporter gene, and several independent transgenic lines were analyzed ... moderate activity was observed in the cotyledons

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

transgenic lines in which NAC1 was overexpressed ... DBP ... showed an increase

Xie Q, Frugis G, Colgan D, Chua NH - Arabidopsis NAC1 transduces auxin signal downstream of TIR1 to promote lateral root development

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  • Gene expression

35S-ICK1 ... Expression of the CDK gene cdc2a did not decrease, and perhaps showed a slight increase

Wang H, Zhou Y, Gilmer S, Whitwill S, Fowke LC - Expression of the plant cyclin-dependent kinase inhibitor ICK1 affects cell division, plant growth and morphology

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  • Gene expression

KNAT1 ... was ectopically expressed in the cotyledons of as1 embryos

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

STM ... expression ... is confined to SAM cells ... in as1

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

In as1 mutant leaves, expression of KNAT2 was upregulated

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

stm embryos revealed AS1 expression throughout the apical half of ... heart stage embryos

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

the expression pattern of STM does not change in as1 mutants

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

After germination, AS1 was detected in leaf founder cells from the time of primordium initiation

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

In wild-type embryos AS1 RNA first became detectable in late globular stage, predominantly in two subepidermal domains corresponding to cotyledon initials

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

After germination, AS1 was detected in leaf founder cells ... until stage P4

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

KNAT2 transcripts were present ... at a low level in wild-type leaves

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

In wild-type embryos AS1 RNA ... Expression was maintained in subepidermal cells of developing cotyledons from heart stage onwards

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

After germination, AS1 was detected ... in cells associated with the cotyledon vasculature

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

KNAT1 transcripts in wild-type plants were detected in whole-shoot

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

STM expression in the wild type ... is absent from leaves

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

in as1 ... STM expression was unchanged

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

STM expression ... is absent from leaves ... in as1

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

STM expression in the wild type is confined to SAM cells

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

KNAT1 was ectopically expressed in as1 leaves

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

KNAT1 transcripts in wild-type plants were detected ... not in leaves

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

KNAT2 transcripts were present at high levels in wild-type shoot

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

as1 showed misexpression of KNAT1

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

In wild-type embryos AS1 RNA ... was absent or reduced in ... the cotyledon epidermis

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

STM expression ... is absent from ... leaf primordia ... in as1

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

as1 showed misexpression of ... KNAT2

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

wild-type embryos AS1 RNA ... was absent or reduced in cells that would subsequently form the shoot apical meristem

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

STM expression in the wild type ... is absent from ... leaf primordia

Byrne ME, Barley R, Curtis M, Arroyo JM, Dunham M, Hudson A, Martienssen RA - Asymmetric leaves1 mediates leaf patterning and stem cell function in Arabidopsis

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  • Gene expression

expression of ATβ-Amy ... in plants grown on media lacking sugars did not differ between 35S::ATHB13 plants and wild type

Hanson J, Johannesson H, Engström P - Sugar-dependent alterations in cotyledon and leaf development in transgenic plants expressing the HDZhdip gene ATHB13

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  • Gene expression

expression of ATβ-Amy ... was induced to higher levels in 35S::ATHB13 plants than in the wild type

Hanson J, Johannesson H, Engström P - Sugar-dependent alterations in cotyledon and leaf development in transgenic plants expressing the HDZhdip gene ATHB13

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  • Gene expression

expression of ... VSP was induced to higher levels in 35S::ATHB13 plants than in the wild type

Hanson J, Johannesson H, Engström P - Sugar-dependent alterations in cotyledon and leaf development in transgenic plants expressing the HDZhdip gene ATHB13

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  • Gene expression

CHS ... not affected by ATHB13 over-expression

Hanson J, Johannesson H, Engström P - Sugar-dependent alterations in cotyledon and leaf development in transgenic plants expressing the HDZhdip gene ATHB13

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  • Gene expression

expression of ... VSP ... in plants grown on media lacking sugars did not differ between 35S::ATHB13 plants and wild type

Hanson J, Johannesson H, Engström P - Sugar-dependent alterations in cotyledon and leaf development in transgenic plants expressing the HDZhdip gene ATHB13

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  • Gene expression

KNAT1 transcripts ... were detected in the ... basal regions of leaf primordia ... in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 transcripts ... as2-1 ... were detected ... not in the ... small leaf primordia

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 transcripts ... were detected ... not in the central zones ... in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

as2-1 ... levels of KNAT1 transcripts ... were higher than in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

When primers for amplification of KNAT1 cDNA were used, products of PCR were detected in samples from all the leaves ... of ... as2 ... but not of wild-type plants

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 transcripts ... as2-1 ... were detected in the ... basal regions of leaf primordia

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 ... we occasionally detected weak but significant hybridization signals in some as2-1 leaf primordia and such signals were not detected in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

No significant increase in the accumulation of WUS transcripts was detected in as1-1 ... rosette leaves

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

Transcripts of the STM gene accumulated in the first and second rosette leaves of as1-1 plants

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

When primers for amplification of KNAT1 cDNA were used, products of PCR were detected in samples from all the leaves ... of as1 ... but not of wild-type plants

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

The pattern of accumulation of KNAT1 transcripts in the as1-1 meristem was also similar to that in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

No significant increase in the accumulation of WUS transcripts was detected in ... as2-1 rosette leaves

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 ... we detected relatively strong hybridization signals at the bases of as2-1 leaf primordia

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 transcripts ... were detected ... not in the ... small leaf primordia ... in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

When we used primers for KNAT2 cDNA, increased levels of products were detected in ... as2

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

When we used primers for KNAT2 cDNA, increased levels of products were detected in ... as1

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT6 ... in the wild type, transcripts of this gene accumulated in the shoot apices

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

In situ hybridization showed that the pattern of accumulation of KNAT1 transcripts around vegetative meristems of as2-1 was similar to that of the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 ... as2-1 ... transcripts were detected in the peripheral zones

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

In the rosette leaves of ... as2 ... levels of transcripts of the KNAT6 gene increased

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 ... transcripts were detected in the peripheral zones ... in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

wild-type leaves did not accumulate any detectable STM transcripts

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

as1-1 ... levels of KNAT1 ... transcripts ... were higher than in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 transcripts ... as2-1 ... were detected ... not in the ... presumptive leaf initials

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KNAT1 transcripts ... were detected ... not in the ... presumptive leaf initials ... in the wild type

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

Levels of STM transcripts in as2- 1 rosette leaves fluctuated

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

In the rosette leaves of as1 ... levels of transcripts of the KNAT6 gene increased

Semiarti E, Ueno Y, Tsukaya H, Iwakawa H, Machida C, Machida Y - The ASYMMETRIC LEAVES2 gene of Arabidopsis thaliana regulates formation of a symmetric lamina, establishment of venation and repression of meristem-related homeobox genes in leaves

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  • Gene expression

KAN ... soon thereafter becomes restricted to peripheral cells in a basal region of the embryo

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

Translational fusions between the KAN cDNA and ... b-glucuronidase (GUS ... KAN directed reporter gene expression to the nucleus

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

KAN ... In heart-stage embryos, expression was observed both in the periphery of the presumptive hypocotyl

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

KAN is weakly expressed throughout the early globular embryo

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

During vegetative growth, KANmRNAwas observed ... not in older leaves

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

During vegetative growth, KANmRNAwas observed on the abaxial side of very young leaf primordia

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

KAN ... In heart-stage embryos, expression was observed ... on the abaxial side of cotyledon primordia

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

Translational fusions between the KAN cDNA and ... modified green fluorescent protein (mGFP5 ... KAN directed reporter gene expression to the nucleus

Kerstetter RA, Bollman K, Taylor RA, Bomblies K, Poethig RS - KANADI regulates organ polarity in Arabidopsis

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  • Gene expression

PHB expression in the meristem are missing in phb-1d mutants

McConnell JR, Emery J, Eshed Y, Bao N, Bowman J, Barton MK - Role of PHABULOSA and PHAVOLUTA in determining radial patterning in shoots

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  • Gene expression

The PHB transcript is preferentially expressed in the adaxial domain of the developing leaf

McConnell JR, Emery J, Eshed Y, Bao N, Bowman J, Barton MK - Role of PHABULOSA and PHAVOLUTA in determining radial patterning in shoots

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  • Gene expression

PHB ... globular stage just before cotyledon outgrowth) is seen at high levels in their adaxial domains

McConnell JR, Emery J, Eshed Y, Bao N, Bowman J, Barton MK - Role of PHABULOSA and PHAVOLUTA in determining radial patterning in shoots

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  • Gene expression

Thus, in young primordia, the unit accumulating PHB transcript is the adaxial leaf domain and adjacent meristem cells

McConnell JR, Emery J, Eshed Y, Bao N, Bowman J, Barton MK - Role of PHABULOSA and PHAVOLUTA in determining radial patterning in shoots

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  • Gene expression

The highest levels of PHB RNA are in adaxial (or central) regions of the embryo

McConnell JR, Emery J, Eshed Y, Bao N, Bowman J, Barton MK - Role of PHABULOSA and PHAVOLUTA in determining radial patterning in shoots

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  • Gene expression

PHB transcript is initially present throughout the presumptive cotyledons

McConnell JR, Emery J, Eshed Y, Bao N, Bowman J, Barton MK - Role of PHABULOSA and PHAVOLUTA in determining radial patterning in shoots

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  • Gene expression

GPA1 expression in actively dividing cells

Ullah H, Chen JG, Young JC, Im KH, Sussman MR, Jones AM - Modulation of cell proliferation by heterotrimeric G protein in Arabidopsis

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  • Gene expression

To visualize the deduced decrease in cell division, we analyzed a mitotic reporter (19, 20) in the gpa1 background. b-Glucuronidase (GUS) staining of both the apical meristems and basal cells of the first leaf was markedly reduced in gpa1 mutants compared with con- trols

Ullah H, Chen JG, Young JC, Im KH, Sussman MR, Jones AM - Modulation of cell proliferation by heterotrimeric G protein in Arabidopsis

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  • Gene expression

overexpresses the DWF4 gene ... The levels of BAS1 transcripts were ... slightly increased in AOD4 relative to the wild type

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

The levels of BAS1 transcripts were not detectable in dwf4

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

The levels of BAS1 transcripts were ... decreased in bri1

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

DET2 ... transcript levels were increased in the ... bri1 mutant plants

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

CPD transcript levels were increased in the ... bri1 mutant plants

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

CPD transcript levels were increased in the dwf4 ... mutant plants

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

overexpresses the DWF4 gene ... The level of TCH4 was significantly increased in AOD4 compared to both wild-type and dwarf mutants

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

DET2 ... transcript levels were increased in the dwf4 ... mutant plants

Choe S, Fujioka S, Noguchi T, Takatsuto S, Yoshida S, Feldmann KA - Overexpression of DWARF4 in the brassinosteroid biosynthetic pathway results in increased vegetative growth and seed yield in Arabidopsis

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  • Gene expression

mRNA of REV ... restricted to the adaxial domain as developing primordia

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

In kan1 kan2 seedlings, initial FIL expression appears normal

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

REV ... initiates normally in kan1 kan2 leaf primordia

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

mRNA of ... PHV ... Later expression is confined to the provascular and vascular tissues of leaves

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

mRNA of ... PHV is localized to the SAM, throughout leaf primordia anlagen

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

mRNA of REV ... Later expression is confined to the provascular and vascular tissues of leaves

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

In wild-type, mRNA of FIL is first detected throughout leaf primordia anlagen

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

mRNA of ... PHV is localized to the SAM

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

mRNA of REV ... is localized to the SAM

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

REV ... in kan1 kan2 leaf primordia ... confinement to the adaxial domain is delayed

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

PHV ... in kan1 kan2 leaf primordia ... confinement to the adaxial domain is delayed

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

mRNA of ... PHV is ... restricted to the adaxial domain as developing primordia

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

kan1 kan2 seedlings ... FIL ... domain is reduced in size. In developing leaf primordia, FIL was not detected in more than 2-3 cell layers, even though these primordia have more cell layers than wild-type

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

PHV, initiates normally in kan1 kan2 leaf primordia

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

mRNA of REV ... is localized to the SAM, throughout leaf primordia anlagen

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

kan1 kan2 ... PHV, levels of mRNA are higher

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

In wild-type, mRNA of FIL ... becomes confined to the abaxial side of the leaf

Eshed Y, Baum SF, Perea JV, Bowman JL - Establishment of polarity in lateral organs of plants

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  • Gene expression

Expression of ELK4 (AGB1) was found in all tissues tested

Lease KA, Wen J, Li J, Doke JT, Liscum E, Walker JC - A mutant Arabidopsis heterotrimeric G-protein beta subunit affects leaf, flower, and fruit development

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  • Gene expression

to determine the level of AtCAP1 in distinct Arabidopsis tissues. After RT-PCR, a specific 410-bp fragment was detected in ... cotyledons

Barrero RA, Umeda M, Yamamura S, Uchimiya H - Arabidopsis CAP regulates the actin cytoskeleton necessary for plant cell elongation and division

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  • Gene expression

to determine the level of AtCAP1 in distinct Arabidopsis tissues. After RT-PCR, a specific 410-bp fragment was detected in ... shoots

Barrero RA, Umeda M, Yamamura S, Uchimiya H - Arabidopsis CAP regulates the actin cytoskeleton necessary for plant cell elongation and division

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  • Gene expression

to determine the level of AtCAP1 in distinct Arabidopsis tissues. After RT-PCR, a specific 410-bp fragment was detected in ... leaves

Barrero RA, Umeda M, Yamamura S, Uchimiya H - Arabidopsis CAP regulates the actin cytoskeleton necessary for plant cell elongation and division

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  • Gene expression

The quantitative estimation of the amount of protein accumulation indicated that although the actin level was maintained constant in all plants, the AtCAP1 level increased as the amount of Dex was increased in transgenic plants (Figure 6B). S4 plants accumulated AtCAP1 protein at high levels, whereas S11 plants accumulated AtCAP1 at low levels

Barrero RA, Umeda M, Yamamura S, Uchimiya H - Arabidopsis CAP regulates the actin cytoskeleton necessary for plant cell elongation and division

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  • Gene expression

We obtained several transgenic lines possessing a chimeric AtCAP1 gene under a GAL4 promoter, which is recognized by the GVG transcription factor upon activation with dexamethasone (Dex) (Aoyama and Chua, 1997) (Figure 6A) . Three independent transgenic plants, S4, S9, and S11, each with a single copy of AtCAP1 (data not shown) and with different expression levels of the AtCAP1 protein (Figure 6B), were chosen for further analysis

Barrero RA, Umeda M, Yamamura S, Uchimiya H - Arabidopsis CAP regulates the actin cytoskeleton necessary for plant cell elongation and division

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  • Gene expression

To characterize the level of accumulation of the AtCAP1 protein in Arabidopsis tissues, total proteins from suspension-cultured cells, roots, stems, leaves, and flowers were extracted and subjected to protein gel blot analysis as described in Methods. The AtCAP1 antibody specifically recognized a 52-kD protein, which is the predicted molecular mass of the AtCAP1 protein. A detectable level of AtCAP1 protein was found in suspension-cultured cells and roots

Barrero RA, Umeda M, Yamamura S, Uchimiya H - Arabidopsis CAP regulates the actin cytoskeleton necessary for plant cell elongation and division

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  • Gene expression

AS1 was expressed in all plant tissues examined: roots, stems, leaves, flowers and siliques, with preferential expression in young and immature plant tissues. In the developed rosette and cauline leaves, AS1 had very low expression

Sun Y, Zhou Q, Zhang W, Fu Y, Huang H - ASYMMETRIC LEAVES1, an Arabidopsis gene that is involved in the control of cell differentiation in leaves

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  • Gene expression

AtCUL1 is expressed in dividing cells throughout the plant (data not shown) and is localized primarily to the nucleus

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

To further study AXR1 gene expression, we placed the β-glucuronidase reporter gene (GUS) adjacent to the promoter region of the AXR1 gene and introduced this construct into Arabidopsis plants ... Staining also was observed in the ... hydathodes

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

ECR1 expression was observed in ... shoot meristems

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

ECR1 RNA was not detected in mature (nongrowing) tissues of the plant, such as in the stem distal to the apex or in fully expanded leaves

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

To further study AXR1 gene expression, we placed the β-glucuronidase reporter gene (GUS) adjacent to the promoter region of the AXR1 gene and introduced this construct into Arabidopsis plants ... we observed GUS staining in vascular tissues in cotyledons

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

we examined the pattern of AXR1 accumulation during embryogenesis. High levels of AXR1 protein were found in the zygote and throughout embryogenesis (Figures 1M to 1P and data not shown). A similar distribution of AXR1 RNA was observed (data not shown)

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

AXR1 protein was found in the ... leaf primordium

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

To further study AXR1 gene expression, we placed the β-glucuronidase reporter gene (GUS) adjacent to the promoter region of the AXR1 gene and introduced this construct into Arabidopsis plants ... Staining also was observed in the trichomes

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

To further study AXR1 gene expression, we placed the β-glucuronidase reporter gene (GUS) adjacent to the promoter region of the AXR1 gene and introduced this construct into Arabidopsis plants ... we observed GUS staining in vascular tissues in ... mature leaves

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

AXR1 RNA accumulated ... in young leaves

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

AXR1 was found primarily in the nuclei of these cells

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

AXR1 protein was found in the shoot meristem

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

AXR1 RNA accumulated in the root and shoot meristems

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

ECR1 expression was observed in ... embryo

del Pozo JC, Dharmasiri S, Hellmann H, Walker L, Gray WM, Estelle M - AXR1-ECR1-dependent conjugation of RUB1 to the Arabidopsis Cullin AtCUL1 is required for auxin response

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  • Gene expression

AN gene was expressed ... in ... leaves

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

MERI5 (Medford et al., 1991), was among the genes that were specifically up- regulated in the an mutant ... We found thatMERI5 was expressed at a 3-fold higher level in the an-1 mutant than in the wild type, as indicated by the microarray analysis (3.3-fold higher by microarray analysis; 3.27-fold higher by RT±PCR analy- sis

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

AN gene was expressed ... in cotyledons

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

an ... We found no difference in numbers of MTs ... by moni- toring expression of the TUB6::GFP fusion gene

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

AN gene to a gene for green fluorescent protein (sGFP::S65T) under the control of the constitutively expressed 35S RNA promoter of cauliflower mosaic virus (CaMV ... we detected green fluorescence within the nuclei of cells in stable Arabidopsis transformants

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

an ... Analysis by RT±PCR on one of the endogenous genes for tubulin, TUB4, indicated that there were no significant differences among the levels of expression of the transcript of this gene

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

rot3 ... We found no difference in numbers of MTs ... by moni- toring expression of the TUB6::GFP fusion gene

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

EXGT-A1 ... did not show such differences (not significantly different from the wild type; level of significance, 5%) when we compared an-1 and wild-type plants

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

rot3 ... Analysis by RT±PCR on one of the endogenous genes for tubulin, TUB4, indicated that there were no significant differences among the levels of expression of the transcript of this gene also

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

EXGT-A2 ... did not show such differences (not significantly different from the wild type; level of significance, 5%) when we compared an-1 and wild-type plants

Kim GT, Shoda K, Tsuge T, Cho KH, Uchimiya H, Yokoyama R, Nishitani K, Tsukaya H - The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation

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  • Gene expression

we found AN expression in all tissues analyzed, including roots, leaves, stems and flowers

Folkers U, Kirik V, Schöbinger U, Falk S, Krishnakumar S, Pollock MA, Oppenheimer DG, Day I, Reddy AS, Jürgens G, Hülskamp M - The cell morphogenesis gene ANGUSTIFOLIA encodes a CtBP/BARS-like protein and is involved in the control of the microtubule cytoskeleton

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  • Gene expression

AN ... fusion construct with green fluorescent protein (GFP) under the control of the 35S promotor from the cauliflower mosaic virus ... AN±GFP fusion protein was found ubiquitously in the cytoplasm and the nucleus

Folkers U, Kirik V, Schöbinger U, Falk S, Krishnakumar S, Pollock MA, Oppenheimer DG, Day I, Reddy AS, Jürgens G, Hülskamp M - The cell morphogenesis gene ANGUSTIFOLIA encodes a CtBP/BARS-like protein and is involved in the control of the microtubule cytoskeleton

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  • Gene expression

AN ... fusion construct with green fluorescent protein (GFP) under the control of the 35S promotor from the cauliflower mosaic virus ... AN±GFP fusion protein was found ... in the cytoplasm and the nucleus

Folkers U, Kirik V, Schöbinger U, Falk S, Krishnakumar S, Pollock MA, Oppenheimer DG, Day I, Reddy AS, Jürgens G, Hülskamp M - The cell morphogenesis gene ANGUSTIFOLIA encodes a CtBP/BARS-like protein and is involved in the control of the microtubule cytoskeleton

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  • Gene expression

weak expression of SDD1 mRNA was observed in the mesophyll cells of developing rosette leaves and leaf primordia and in all cell layers of the entire shoot apical meristem

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

In the 35S-SDD1ct-GFP–overexpressing lines, green fluorescence corresponding to GFP was localized to the plasma membrane (Figures 5A to 5D) . Similar fluorescence patterns were observed when leaves were incubated for 1 to 12 h in a buffer at pH 7.0 in an attempt to neutralize the apoplast, because GFP is unstable at low pH (Haseloff et al., 1997) (Figures 5A and 5B). Plasmolysis with 1 M KNO3 confirmed the localization of the GFP fusion protein in association with the plasma membrane (Figure 5B). Because SDD1 has no predicted membrane-spanning domain, the 35S-SDD1ct-GFP fusion protein may be attached to the plasma membrane via additional factors

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

In paradermal sections of the epidermis, these specialized cell types were identified as meristemoids/GMCs (Ms/GMCs) according to their characteristic shape, as described in Zhao and Sack (1999) (Figure 2D

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

weak expression of SDD1 mRNA was observed in the mesophyll cells of developing rosette leaves and leaf primordia and in all cell layers of the entire shoot apical meristem

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

weak expression of SDD1 mRNA was observed in the mesophyll cells of developing rosette leaves and leaf primordia and in all cell layers of the entire shoot apical meristem

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

In paradermal sections of the epidermis, these specialized cell types were identified as meristemoids/GMCs (Ms/GMCs) according to their characteristic shape, as described in Zhao and Sack (1999) (Figure 2D

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

no SDD1 mRNA was detected in mature GCs

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

The results showed that SDD1 was expressed predominantly in specialized cell types in the epidermis of developing leaves and siliques

Von Groll U, Berger D, Altmann T - The subtilisin-like serine protease SDD1 mediates cell-to-cell signaling during Arabidopsis stomatal development

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  • Gene expression

To understand the biochemical basis of the severe growth defects observed in some of the dsRNA lines, protein extracts from dsRNA-2 line and control line were blotted with different antibodies (Fig. 9). Interestingly, we noted that AtRbx1-depleted seedlings do not only show a strong reduction of AtRbx1 protein level, but also a decreased AtCul1 protein level. In fact, both Rub1-modified and unmodified AtCul1 protein bands were weaker

Lechner E, Xie D, Grava S, Pigaglio E, Planchais S, Murray JA, Parmentier Y, Mutterer J, Dubreucq B, Shen WH, Genschik P - The AtRbx1 protein is part of plant SCF complexes, and its down-regulation causes severe growth and developmental defects

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  • Gene expression

in the Rbx1-depleted plants, we found a significant higher level of cyclin D3 protein (Fig. 9) whereas cyclin D3 mRNAs accumulated at a similar level than in the Dex non-induced or control plants (data not shown). However, this protein band is detected at ∼46 kDa, whereas cyclin D3 detected in roots is ∼55 kDa (47). Because the antibody was raised against the C-terminal peptide of cyclin D3 (47), the 46-kDa form of the protein must represent the loss of an N-terminal fragment or could be an alternative splice form or a modified form of the protein

Lechner E, Xie D, Grava S, Pigaglio E, Planchais S, Murray JA, Parmentier Y, Mutterer J, Dubreucq B, Shen WH, Genschik P - The AtRbx1 protein is part of plant SCF complexes, and its down-regulation causes severe growth and developmental defects

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  • Gene expression

RNA blot analyses were performed to investigate AtRbx1 expression, and its mRNAs could be detected in all the plant organs analyzed

Lechner E, Xie D, Grava S, Pigaglio E, Planchais S, Murray JA, Parmentier Y, Mutterer J, Dubreucq B, Shen WH, Genschik P - The AtRbx1 protein is part of plant SCF complexes, and its down-regulation causes severe growth and developmental defects

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  • Gene expression

To check whether the reductions of AtRbx1 and, to a lesser extent, AtCul1 would affect the pattern of ubiquitin conjugates, the blot was probed with an anti-ubiquitin antibody that recognizes both free and conjugated ubiquitin. Indeed, we noted that several protein bands either disappeared or were strongly reduced in the Dex-induced dsRNA line. The level of free ubiquitin also was reduced in those plants. However, the pattern of most ubiquitin conjugates were still similar between the non-induced and the induced line

Lechner E, Xie D, Grava S, Pigaglio E, Planchais S, Murray JA, Parmentier Y, Mutterer J, Dubreucq B, Shen WH, Genschik P - The AtRbx1 protein is part of plant SCF complexes, and its down-regulation causes severe growth and developmental defects

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  • Gene expression

diffuse localization of RHL2 throughout the nucleus

Sugimoto-Shirasu K, Stacey NJ, Corsar J, Roberts K, McCann MC - DNA topoisomerase VI is essential for endoreduplication in Arabidopsis

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  • Gene expression

stm mutant plants using the YAB3::GUS ... we detected no differences in the YAB gene expression pattern in the cotyledons of stm mutants and wild-type plants

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

BP was expressed in leaves of ... fil-8 yab3-2 double mutants

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

KNAT2 ... enhanced level of expression was detected in the leaves ... fil-8 yab3-2

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

fil-8 yab3-2 plants ... We observed the expression of STM in the leaves of double mutants

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

YAB3 expression also was more intense near the leaf margins (Figure 2B). Similar to the previous results with the fil-5 yab3-1 mutants (Siegfried et al., 1999

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

We also tested, by RT-PCR, the levels of AS1 transcripts in fil yab3 leaves, and these appeared unchanged compared with those in wild-type leaves

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

KNAT2 ... enhanced level of expression was detected in the leaves of ... fil-8

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

In wild-type plants, STM expression was ... being restricted to the apical meristem

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

BP was expressed in leaves ... not in wild-type plants

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

BP was expressed in leaves of the ... yab3-2

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

fil-8 yab3-2 plants, STM expression ... was restricted to the apical meristem

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

expression of STM in the leaves ... not in wild-type plants

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

In a wild-type background, BP::GUS expression is detected in the meristematic zone

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

In seedlings heterozygous for yab3-2 ... we observed GUS expression on either side of the leaf margin in the younger tissues of leaf blades

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

YAB3 ... In seedlings heterozygous for yab3-2, GUS expression was observed in the young leaves

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

YAB3 ... In seedlings heterozygous for yab3-2 ... as the leaf matured, expression was restricted to the abaxial tissues of leaves

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

fil-8 yab3-2 plants, STM expression was excluded from leaf anlagen

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

KNAT2 ... enhanced level of expression was detected in the leaves of ... yab3-2

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

In most of the fil-8 seedlings, BP::GUS was ... prominent in the leaf blade margins

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

In wild-type plants, STM expression was excluded from leaf anlagen

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

As lateral organs emerged from the apical meristem, the expression of BP::GUS was downregulated

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

In some fil-8 seedlings, BP::GUS expression appeared to be restricted to the abaxial domains of the emerging leaves

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

BP was expressed in leaves of the fil-8

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

STM leaf expression was detectable even in fil-8

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

STM leaf expression was detectable even in ... yab3-2 single-mutant plants

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

We detected low-level expression of KNAT2 in the leaves of wild-type plants

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

In most of the fil-8 seedlings, BP::GUS was detectable in emerging leaves

Kumaran MK, Bowman JL, Sundaresan V - YABBY polarity genes mediate the repression of KNOX homeobox genes in Arabidopsis

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  • Gene expression

SWP ... expression was maintained in developing leaves

Autran D, Jonak C, Belcram K, Beemster GT, Kronenberger J, Grandjean O, Inzé D, Traas J - Cell numbers and leaf development in Arabidopsis: a functional analysis of the STRUWWELPETER gene

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  • Gene expression

SWP ... A weak signal, sometimes just above the detection level, was also visible at the vegetative shoot apical meristem

Autran D, Jonak C, Belcram K, Beemster GT, Kronenberger J, Grandjean O, Inzé D, Traas J - Cell numbers and leaf development in Arabidopsis: a functional analysis of the STRUWWELPETER gene

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  • Gene expression

During embryogenesis, SWP mRNA was detected in all cells ... cotyledonar stage

Autran D, Jonak C, Belcram K, Beemster GT, Kronenberger J, Grandjean O, Inzé D, Traas J - Cell numbers and leaf development in Arabidopsis: a functional analysis of the STRUWWELPETER gene

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  • Gene expression

During embryogenesis, SWP mRNA was detected in all cells, from the early octant ... stage

Autran D, Jonak C, Belcram K, Beemster GT, Kronenberger J, Grandjean O, Inzé D, Traas J - Cell numbers and leaf development in Arabidopsis: a functional analysis of the STRUWWELPETER gene

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  • Gene expression

swp ... At the level of the young primordia, downregulation of STM ... was systematically observed

Autran D, Jonak C, Belcram K, Beemster GT, Kronenberger J, Grandjean O, Inzé D, Traas J - Cell numbers and leaf development in Arabidopsis: a functional analysis of the STRUWWELPETER gene

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  • Gene expression

in swp ... At the level of the young primordia ... upregulation of the primordium marker AINTEGUMENTA (ANT) was systematically observed

Autran D, Jonak C, Belcram K, Beemster GT, Kronenberger J, Grandjean O, Inzé D, Traas J - Cell numbers and leaf development in Arabidopsis: a functional analysis of the STRUWWELPETER gene

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  • Gene expression

SWP was strongly expressed in young leaf primordia

Autran D, Jonak C, Belcram K, Beemster GT, Kronenberger J, Grandjean O, Inzé D, Traas J - Cell numbers and leaf development in Arabidopsis: a functional analysis of the STRUWWELPETER gene

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  • Gene expression

KNAT6 ... expression ... in the cotyledons ... bop1-1 seedlings were significantly higher than those in wild- type seedlings

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

in the petioles of cotyledons and rosette leaves ... KNAT1::GUS was misexpressed ... in the bop1- 1

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

Examination of the expression pattern in single leaves of bop1-1 showed that, unlike in wild-type leaves, KNAT1::GUS was detected in the petioles of ... rosette leaves

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

KNAT1 ... expression ... in the cotyledons ... of bop1-1 seedlings were significantly higher than those in wild- type seedlings

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

In bop1-1 plants, KNAT1::GUS was expressed in a pattern similar to that in wild-type plants, but in more expanded regions

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

bop1-1 ... STM transcription was not detectable in our experiment in the ... cotyledons

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

KNAT2 ... bop1-1 ... there were no notable differences between the wild-type and mutant SAM regions in the expression

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

KNAT1 ... bop1-1 ... there were no notable differences between the wild-type and mutant SAM regions in the expression

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

Examination of the expression pattern in single leaves of bop1-1 showed that, unlike in wild-type leaves, KNAT1::GUS was detected in the petioles of cotyledons

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

KNAT2 ... expression ... the cotyledons ... of bop1-1 seedlings were significantly higher than those in wild- type seedlings

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

KNAT6 ... expression ... in the ... rosette leaves of bop1-1 seedlings were significantly higher than those in wild- type seedlings

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

bop1-1 ... KNAT2 that showed only a slightly increased expression in the mutant rosette leaf

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

KNAT1 ... expression ... in the ... rosette leaves of bop1-1 seedlings were significantly higher than those in wild- type seedlings

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

bop1-1 ... STM transcription was not detectable in our experiment in the ... rosette leaves

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

KNAT6 ... bop1-1 ... there were no notable differences between the wild-type and mutant SAM regions in the expression

Ha CM, Kim GT, Kim BC, Jun JH, Soh MS, Ueno Y, Machida Y, Tsukaya H, Nam HG - The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in Arabidopsis

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  • Gene expression

In wild-type plants, high levels of PNH mRNA are observed in developing vascular tissue

Newman KL, Fernandez AG, Barton MK - Regulation of axis determinacy by the Arabidopsis PINHEAD gene

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  • Gene expression

in situ hybridization experiments were performed on PNH; FIL::PNH transgenic plants using a PNH antisense probe. In addition to the wild-type expression domain, transformants expressed PNH ... near the margins on the abaxial sides of true leaves at levels resembling those on the adaxial sides

Newman KL, Fernandez AG, Barton MK - Regulation of axis determinacy by the Arabidopsis PINHEAD gene

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  • Gene expression

In wild-type plants ... PNH mRNA are observed ... on the adaxial, but not abaxial, sides of lateral organ primordia

Newman KL, Fernandez AG, Barton MK - Regulation of axis determinacy by the Arabidopsis PINHEAD gene

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  • Gene expression

in pnh; FIL::PNH embryos ... Similarly, STM was expressed only in its normal domain at the early and middle stages of embryogenesis, but it was expressed in some cotyledon primordia by the bent-cotyledon stage (Figures 8C and 8D). Unlike CUC2 expression, STM expression in cotyledon primordia was detected only after they were morphologically distinguishable as double cotyledons

Newman KL, Fernandez AG, Barton MK - Regulation of axis determinacy by the Arabidopsis PINHEAD gene

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  • Gene expression

Early in development, the expression of CUC2 in pnh; FIL::PNH embryos was confined to the same region as in the wild type (Figure 8A) . However, by the late heart stage, when cotyledon primordia are easily distinguishable, expression of this gene also was evident at the distal tip of some cotyledon primordia (Figure 8B). At later stages of embryogenesis, staining was seen in a higher proportion of cotyledon primordia

Newman KL, Fernandez AG, Barton MK - Regulation of axis determinacy by the Arabidopsis PINHEAD gene

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  • Gene expression

In wild-type plants ... PNH mRNA are observed in ... low levels ... throughout the SAM

Newman KL, Fernandez AG, Barton MK - Regulation of axis determinacy by the Arabidopsis PINHEAD gene

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  • Gene expression

in situ hybridization experiments were performed on PNH; FIL::PNH transgenic plants using a PNH antisense probe. In addition to the wild-type expression domain, transformants expressed PNH on the abaxial sides of cotyledons

Newman KL, Fernandez AG, Barton MK - Regulation of axis determinacy by the Arabidopsis PINHEAD gene

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  • Gene expression

We found that CYCD3;1 mRNA ... In more mature developing leaves, a strong signal persists in adaxial cells

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

We found that CYCD3;1 mRNA is abundant in the vegetative shoot meristem

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

CYCD3;1 OE ... PHABULOSA ... mRNA levels ... were unchanged despite the dramatic morphological differences

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

Little or no change in ... CYCD3;3 mRNA levels was observed in CYCD3;1 OE seedlings

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

All E2F genes were upregulated in CYCD3;1 OE plants

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

Levels of Rb mRNA were increased ... by 5.7-fold ... in CYCD3;1 OE seedlings

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

CYCD3;1 mRNA levels ... were not detected with a gel-based assay in mature rosette leaves

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

We found that CYCD3;1 mRNA ... is present at high levels in young developing leaves

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

CYCD3;1 OE ... SHOOTMERISTEMLESS ... mRNA levels ... were unchanged despite the dramatic morphological differences

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

We found that CYCD3;1 mRNA is abundant ... particularly in peripheral meristem areas

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

Little or no change in CYCD3;2 ... mRNA levels was observed in CYCD3;1 OE seedlings

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

Low CYCD3;1 mRNA levels were detected in wild-type seedlings

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

we found that mRNA levels of ANT were unaffected in the transgenic ... CYCD3;1 OE

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

All E2F genes were upregulated in CYCD3;1 OE plants

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

We found that CYCD3;1 mRNA is abundant in ... young primordia

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

no change in CYCD2;1 transcript levels was observed, despite the morphological and cytological changes apparent in CYCD3;1 OE plants

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

Levels of Rb mRNA were increased in ... mature rosette leaves (by 3.5-fold ... in CYCD3;1 OE

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

To determine whether the effects of CYCD3;1 on the G1/S transition also resulted in a modification of the spatial localization of cell division, we assessed the overall distribution of cell proliferation using a fusion of GUS to the promoter and destruction box of the mitotic cyclin CYCB1;1 (Colon-Carmona et al., 1999). The CYCB1-GUS fusion protein is present only in cells in G2/M and is destroyed rapidly when cells passed through mitosis, so GUS staining patterns indicate regions containing cells engaged in active cell division. CYCD3;1 OE seedlings carrying this construct stained for GUS over a wider region than wild-type control seedlings (Figure 4C

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

large increase in Rb protein level also was detected in CYCD3;1 OE seedlings

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

All E2F genes were upregulated in CYCD3;1 OE plants

Dewitte W, Riou-Khamlichi C, Scofield S, Healy JM, Jacqmard A, Kilby NJ, Murray JA - Altered cell cycle distribution, hyperplasia, and inhibited differentiation in Arabidopsis caused by the D-type cyclin CYCD3

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  • Gene expression

pPHAB-GUS ... were introgressed into drl1-2 ... marker lines displayed promoter activity in the dorsal part of the leaf primordium, including the vascular bundles

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... transverse sections of 8- to 12-day-old SAMs ... section more apical to the SAM showed circular ... staining that coincided with the central zone

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... GUS activity also was observed typically around the vascular bun- dles

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... In young leaf primordia, GUS activity occurred as a linear area representing the basal part of the dorsal side

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... In older leaf primordia, X-Gluc staining was apparent as a continuous blue linear area ... the mesophyll be- tween the vascular bundles

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... In transverse serial sec- tions of expanding leaves, GUS activity was patchy: staining was seen in individual palisade and spongy mesophyll paren- chyma cells

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

leaves ... mRNA of DRL1 was detected in every plant organ investigated in the wild type

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

In the strong drl1-2 allele with severely reduced DRL1 transcript, a significant upregulation of the AN transcript (up to twofold) was seen

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pFIL-GUS ... introgressed into drl1-2 ... marker lines displayed promoter activity ... in the abaxial part of the leaf primordia, excluding vascular bundles

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... longitudinal sections through shoot and inflorescence apices, GUS activity was ... absent in the L3 layer

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... transverse sections of 8- to 12-day-old SAMs (n = 6), staining was ring shaped, indicating GUS activity in the periph- eral zone of the SAM

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... GUS activity was not observed in the mesophyll cells at the leaf tip

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pREV(DLUTA)-GUS ... were introgressed into drl1-2 ... marker lines displayed promoter activity in the dorsal part of the leaf primordium, including the vascular bundles

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... In longitudinal sections through shoot and inflorescence apices, GUS activity was most prominent in the L2 layer

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... GUS activity was not observed ... at the ventral mesophyll of the midrib

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

The pDRL1-GUS pattern coincided with the patchy pat- tern of expression of pcyc1at-GUS during leaf development

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... Homogeneous GUS activity was detected in globular-, heart-, and torpedo-stage embryos

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pYAB3-GUS ... introgressed into drl1-2 ... marker lines displayed promoter activity ... in the abaxial part of the leaf primordia, excluding vascular bundles

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

cotyledons ... mRNA of DRL1 was detected in every plant organ investigated in the wild type

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... In the leaf epidermis, GUS activity was restricted to the stomatal guard cells, which are generated by cell division from epidermal meristemoids after cell division has ceased in the epidermal pavement cells

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... GUS activity was not observed ... at the margin of the distal part of the leaf lamina

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... pattern was identi- cal to the pattern of the dorsal marker lines pPHAB-GUS and pREV-GUS in leaf primordia

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... In longitudinal sections through shoot and inflorescence apices, GUS activity was ... less prominent in the L1 layer

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

shoot apices ... mRNA of DRL1 was detected in every plant organ investigated in the wild type

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

pDRL1-GUS ... In older leaf primordia, X-Gluc staining was apparent as a continuous blue linear area, including vascular bundles

Nelissen H, Clarke JH, De Block M, De Block S, Vanderhaeghen R, Zielinski RE, Dyer T, Lust S, Inzé D, Van Lijsebettens M - DRL1, a homolog of the yeast TOT4/KTI12 protein, has a function in meristem activity and organ growth in plants

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  • Gene expression

We used RNA in situ hybridizations and a β-glucuronidase (GUS) reporter gene for expression analysis of DRN/ESR1. To construct the GUS reporter, the DRN/ESR1 coding region was replaced by the GUS open reading frame in a genomic clone carrying 4.8-kb DNA sequences upstream of the ATG and 1.5-kb DNA sequences downstream of the termination codon ... from the torpedo stage onward, transcripts were found exclusively in the L1 layer of the SAM

Kirch T, Simon R, Grünewald M, Werr W - The DORNROSCHEN/ENHANCER OF SHOOT REGENERATION1 gene of Arabidopsis acts in the control of meristem ccll fate and lateral organ development

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  • Gene expression

We used RNA in situ hybridizations and a β-glucuronidase (GUS) reporter gene for expression analysis of DRN/ESR1. To construct the GUS reporter, the DRN/ESR1 coding region was replaced by the GUS open reading frame in a genomic clone carrying 4.8-kb DNA sequences upstream of the ATG and 1.5-kb DNA sequences downstream of the termination codon ... When the seedling had germinated, expression was found in young leaf primordia

Kirch T, Simon R, Grünewald M, Werr W - The DORNROSCHEN/ENHANCER OF SHOOT REGENERATION1 gene of Arabidopsis acts in the control of meristem ccll fate and lateral organ development

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  • Gene expression

We used RNA in situ hybridizations and a β-glucuronidase (GUS) reporter gene for expression analysis of DRN/ESR1. To construct the GUS reporter, the DRN/ESR1 coding region was replaced by the GUS open reading frame in a genomic clone carrying 4.8-kb DNA sequences upstream of the ATG and 1.5-kb DNA sequences downstream of the termination codon ... expression was found ... in the two outer cell layers, L1 and L2, of the SAM

Kirch T, Simon R, Grünewald M, Werr W - The DORNROSCHEN/ENHANCER OF SHOOT REGENERATION1 gene of Arabidopsis acts in the control of meristem ccll fate and lateral organ development

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  • Gene expression

We used RNA in situ hybridizations and a β-glucuronidase (GUS) reporter gene for expression analysis of DRN/ESR1. To construct the GUS reporter, the DRN/ESR1 coding region was replaced by the GUS open reading frame in a genomic clone carrying 4.8-kb DNA sequences upstream of the ATG and 1.5-kb DNA sequences downstream of the termination codon ... At the early heart stage, transcripts accumulated at high levels in the emerging cotyledons and at lower levels at the position of the prospective SAM (Figure 3B). Expression in cotyledons was only transient

Kirch T, Simon R, Grünewald M, Werr W - The DORNROSCHEN/ENHANCER OF SHOOT REGENERATION1 gene of Arabidopsis acts in the control of meristem ccll fate and lateral organ development

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  • Gene expression

We used RNA in situ hybridizations and a β-glucuronidase (GUS) reporter gene for expression analysis of DRN/ESR1. To construct the GUS reporter, the DRN/ESR1 coding region was replaced by the GUS open reading frame in a genomic clone carrying 4.8-kb DNA sequences upstream of the ATG and 1.5-kb DNA sequences downstream of the termination codon ... expression was detected first in the proembryo at the four-cell stage (Figure 3A) and throughout the embryo at the globular stage

Kirch T, Simon R, Grünewald M, Werr W - The DORNROSCHEN/ENHANCER OF SHOOT REGENERATION1 gene of Arabidopsis acts in the control of meristem ccll fate and lateral organ development

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  • Gene expression

we produced transgenic Arabidopsis plants expressing a HST-GUS fusion protein under the regulation of the CaMV 35S promoter. hst-1 plants containing the transgene were phenotypically wild type ... GUS activity was concentrated in the nucleus ... in ... trichomes

Bollman KM, Aukerman MJ, Park MY, Hunter C, Berardini TZ, Poethig RS - HASTY, the Arabidopsis ortholog of exportin 5/MSN5, regulates phase change and morphogenesis

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  • Gene expression

we produced transgenic Arabidopsis plants expressing a HST-GUS fusion protein under the regulation of the CaMV 35S promoter. hst-1 ... In trichomes ... GUS staining ... was always most intense on the apical side of the nucleus

Bollman KM, Aukerman MJ, Park MY, Hunter C, Berardini TZ, Poethig RS - HASTY, the Arabidopsis ortholog of exportin 5/MSN5, regulates phase change and morphogenesis

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  • Gene expression

HST ... Hybridization of this cDNA to poly(A)-enriched RNA revealed a single 4 kb transcript in leaves

Bollman KM, Aukerman MJ, Park MY, Hunter C, Berardini TZ, Poethig RS - HASTY, the Arabidopsis ortholog of exportin 5/MSN5, regulates phase change and morphogenesis

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  • Gene expression

we produced transgenic Arabidopsis plants expressing a HST-GUS fusion protein under the regulation of the CaMV 35S promoter. hst-1 plants containing the transgene were phenotypically wild type ... GUS activity was concentrated in the nucleus and the surrounding cytoplasm ... in ... trichomes

Bollman KM, Aukerman MJ, Park MY, Hunter C, Berardini TZ, Poethig RS - HASTY, the Arabidopsis ortholog of exportin 5/MSN5, regulates phase change and morphogenesis

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  • Gene expression

we produced transgenic Arabidopsis plants expressing a HST-GUS fusion protein under the regulation of the CaMV 35S promoter. hst-1 ... In trichomes ... GUS staining was clearly localized in the vicinity of the nuclear membrane

Bollman KM, Aukerman MJ, Park MY, Hunter C, Berardini TZ, Poethig RS - HASTY, the Arabidopsis ortholog of exportin 5/MSN5, regulates phase change and morphogenesis

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  • Gene expression

very young primordia of the shoot apical meristem ... expression was considerable ... of ... IGS

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In the young plants examined ... cotyledons did not show any GUS expression

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Different patterns of reporter-gene expression were observed in the well-developed 9-week-old plants, characterized by late-formed enlarged leaves (typical of short-day conditions), which continuously showed distinct patterns with GUS activity in the lobes

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

In later developmental stages, in 5- to 9-mm-long leaves of 9-week-old plants, the expression of ... ILL was again similar in the margin and in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

A striking difference between the shoot and the root was found in the extent of DR5::GUS expression in their apices. In none of the 100 shoot tips studied could GUS activity be detected in the ... youngest leaves

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In advanced stages of primordium development ... GUS activity occurred (away from the leaf margin) at the tips of the freely ending veinlets, or at intermediate sites along these smallest blind veinlets

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In the young plants examined, the two lowest leaves were almost free of GUS activity

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Different patterns of reporter-gene expression were observed in the well-developed 9-week-old plants, characterized by late-formed enlarged leaves (typical of short-day conditions), which continuously showed distinct patterns with GUS activity ... but nearly no expression in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... To ensure that this pattern of GUS expression did not reflect inhibition of penetration or reaction of -glucuronide, incisions were made in 24 leaf primordia at various developmental stages. By exposing the mesophyll to the GUS-staining solution, no induction of GUS expression could be detected along the inner-leaf surfaces (Fig. 1e). This incision control confirmed that no GUS activity existed below the free-auxin-producing tip during this early stage of leaf growth

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... in the upper rosette leaves with slightly serrate edges, the marginal GUS expression was mainly restricted to the lobes

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... At higher microscopic magnification, GUS expression was also observed in some of the bundles (Fig. 2c), indicating auxin flow within these veins

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In more developed primordia, new sites of GUS activity appeared basipetally along the distal regions of the leaf margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

In later developmental stages, in 5- to 9-mm-long leaves of 9-week-old plants, the expression of IGS ... was again similar in the margin and in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

in very young primordia of the shoot apical meristem ... CHS expression was considerable

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Large hydathodes develop in the leaf tip and in the lobes. During the early stages of their differentiation, a center of high free-auxin production could be detected as a concentrated dark-blue GUS stain in the lobe (Fig. 2b, see Fig. 7b-d). From this very active center, a downward gradual decrease in GUS activity was observed from the margin to the differentiating bundle, which is assumed to function as a sink for the auxin flow originating in the primordium tip or in a lobe (Fig. 2b). In more developed hydathodes, the differentiating vessel elements extended towards the lobe margin, usually with more vessel elements in the distal parts of the bundle near the margin (Fig. 2c). Elevated GUS expression persisted in the lobes after xylem maturation in the hydathode (Fig. 3a, b

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

Interestingly, chalcone synthase, the key enzyme for biosynthesis of flavonoids, which are natural inhibitors of basipetal IAA transport and of IAA-degrading peroxidase, was strongly and preferentially expressed in the margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

In later developmental stages, in 5- to 9-mm-long leaves of 9-week-old plants, the expression of ... ILL was again similar in the margin and in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

In later developmental stages, in 5- to 9-mm-long leaves of 9-week-old plants, the expression of IGS ... was again similar in the margin and in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

The largest difference was found in the expression of PIN1, an essential component of the basipetally directed auxin carrier (G�lweiler et al. 1998), with strong expression in the hydathode-containing margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Gradients of decreasing GUS expression could be detected along the margins of early developing primordia, being stronger in the distal than in the proximal parts below

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

CHS expression was more pronounced now in the margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

indole-3-glycerol phosphate synthase (IGS), regarded as a key enzyme of the tryptophan-independent IAA synthesis pathway (Normanly and Bartel 1999), was strongly expressed along the hydathode-containing margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Different patterns of reporter-gene expression were observed in the well-developed 9-week-old plants, characterized by late-formed enlarged leaves (typical of short-day conditions), which continuously showed distinct patterns with GUS activity in the ... central part of the midvein

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Elevated GUS activity also occurred at and above bundle junctions along the primary and secondary veins (1*) as well as along the tertiary veins

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

IAA-amino acid hydrolase (ILL), which catalyzes the hydrolysis of IAA-amino acid conjugates (Normanly and Bartel 1999), was well expressed in ... lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In advanced stages of primordium development, GUS expression was detected in the mesophyll, in central regions of the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

The expression of NIT in very young primordia of the shoot apical meristem (Fig. 4a) was clearly stronger than in leaflets of 9-week-old plants

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

The largest difference was found in the expression of PIN1, an essential component of the basipetally directed auxin carrier ... which was nearly absent in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In young leaf primordia, i.e., in the second or third leaf (counted from the shoot apex), relatively low GUS activity was detected in the tip

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

CHS expression was ... nearly absent in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... GUS activity was visible at the base of some of the trichomes (Fig. 2a, g). During leaf primordium development, the trichomes showing GUS expression appeared in different sites along the primordium, near to, or far away from the margins. Those developing along the margins showed stronger GUS activity than those in central regions of the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In advanced stages of primordium development, GUS expression was detected ... at the sites of small vein formation (usually tertiary veins)

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

Nitrilase (NIT 1-3), a key enzyme in the tryptophan-dependent IAA synthesis pathway (Hillebrand et al. 1998; Normanly and Bartel 1999), was equally expressed in ... lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

In young leaf primordia 2-5 mm long (compare Fig. 1g, i), indole-3-glycerol phosphate synthase (IGS), regarded as a key enzyme of the tryptophan-independent IAA synthesis pathway (Normanly and Bartel 1999), was ... expressed ... strongly in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

IAA-amino acid hydrolase (ILL), which catalyzes the hydrolysis of IAA-amino acid conjugates (Normanly and Bartel 1999), was well expressed in ... margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Different patterns of reporter-gene expression were observed in the well-developed 9-week-old plants, characterized by late-formed enlarged leaves (typical of short-day conditions), which continuously showed distinct patterns with GUS activity in the ... margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... In the lowest rosette leaves, characterized by rounded blades, GUS activity had spread evenly downward from the tip

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

DR5::GUS ... Later on, the GUS activity boosted and appeared as a dark blue point in the tip (Fig. 1f, see Fig. 7b). At this stage, no GUS expression could be detected in the leaf tissue below the free-auxin-producing tip of the young primordium, either along the margins, or in the lamina

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

Interestingly, chalcone synthase, the key enzyme for biosynthesis of flavonoids, which are natural inhibitors of basipetal IAA transport and of IAA-degrading peroxidase ... was ... weakly expressed in the lamina of the primordia

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

In the youngest shoot region, a typical strong DR5::GUS expression was first detected in the stipules

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

in very young primordia of the shoot apical meristem ... expression was considerable ... of ... PIN

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

A striking difference between the shoot and the root was found in the extent of DR5::GUS expression in their apices. In none of the 100 shoot tips studied could GUS activity be detected in the shoot promeristem

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

in very young primordia of the shoot apical meristem ... expression was considerable ... of ILL

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

Nitrilase (NIT 1-3), a key enzyme in the tryptophan-dependent IAA synthesis pathway (Hillebrand et al. 1998; Normanly and Bartel 1999), was equally expressed in ... margin

Aloni R, Schwalm K, Langhans M, Ullrich CI - Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis

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  • Gene expression

in-frame fusion between RCE1 and the β-glucuronidase (GUS) gene ... In leaves, particularly strong staining was observed in the ... trichomes

Dharmasiri S, Dharmasiri N, Hellmann H, Estelle M - The RUB/Nedd8 conjugation pathway is required for early development in Arabidopsis

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  • Gene expression

we examined the status of CUL1 in wild-type and rce1-1 plants by immunoblotting. Figure 3A shows that the level of RUB–CUL1 in the mutant is significantly reduced compared with Ler plants

Dharmasiri S, Dharmasiri N, Hellmann H, Estelle M - The RUB/Nedd8 conjugation pathway is required for early development in Arabidopsis

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  • Gene expression

in-frame fusion between RCE1 and the β-glucuronidase (GUS) gene ... intense staining was observed at the shoot apex

Dharmasiri S, Dharmasiri N, Hellmann H, Estelle M - The RUB/Nedd8 conjugation pathway is required for early development in Arabidopsis

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  • Gene expression

in-frame fusion between RCE1 and the β-glucuronidase (GUS) gene ... In leaves, particularly strong staining was observed in the veins

Dharmasiri S, Dharmasiri N, Hellmann H, Estelle M - The RUB/Nedd8 conjugation pathway is required for early development in Arabidopsis

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  • Gene expression

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Dharmasiri S, Dharmasiri N, Hellmann H, Estelle M - The RUB/Nedd8 conjugation pathway is required for early development in Arabidopsis

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  • Gene expression

To investigate the pattern of RCE1 expression, we first examined expression in various plant tissues by RNA blotting. As indicated in Figure 1A, RCE1 RNA accumulates to substantial levels in all plant organs examined

Dharmasiri S, Dharmasiri N, Hellmann H, Estelle M - The RUB/Nedd8 conjugation pathway is required for early development in Arabidopsis

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  • Gene expression

jaw-D ... TCP gene with strong similarity to CIN was also downregulated

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

jaw-D ... TCP gene with strong similarity to CIN was also downregulated

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

During the torpedo stage, TCP4 RNA becomes localized to subepidermal regions of the cotyledons, with highest levels near the tip (e–g). h, A similar pattern as in cotyledons is seen in young leaves of a wild-type seedling

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

TCP4 RNA becomes gradually restricted to emerging cotyledons during the heart stage

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

TCP4 mRNA in wild-type embryos ... initially uniform pattern during the globular stage

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

jaw-D ... TCP gene with strong similarity to CIN was also downregulated

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

Using RT–qPCR, we found that the MIR-JAW precursor was more abundant in the shoot apex, inflorescence and siliques

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

jaw-D ... TCP gene with strong similarity to CIN was also downregulated

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

jaw-D ... TCP gene with strong similarity to CIN was also downregulated

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

Using RT–qPCR, we found that the MIR-JAW precursor was ... elevated in jaw-D mutants (Fig. 3b), mimicking the differential accumulation of the processed miRNA in different tissues and in jaw-D

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

During the torpedo stage, TCP4 RNA becomes localized to subepidermal regions of the cotyledons, with highest levels near the tip

Palatnik JF, Allen E, Wu X, Schommer C, Schwab R, Carrington JC, Weigel D - Control of leaf morphogenesis by microRNAs

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  • Gene expression

plants expressing an ARGOS– β-glucuronidase(GUS) ... GUS expression was detected in cotyledon vascular bundles

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

ARGOS induction by NAA still was observed in ... aux1-7

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

ARGOS was expressed at low levels in ... young rosette leaves

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

ARGOS induction by NAA still was observed in axr2

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

de- creased levels of ARGOS expression were observed in ... axr1-12 ... and the induction of ARGOS by NAA was ... abolished completely in axr1- 12

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

ARGOS induction by NAA still was observed in ... tir1-3

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

plants expressing an ARGOS– β-glucuronidase(GUS) ... 12-day-old seedlings, GUS staining was observed ... juvenile leaf blades

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

we investigated the cellular localization of ARGOS in onion epi- dermal cells using 35S-ARGOS-GFP and 35S-GFP-ARGOS fusion genes ... ARGOS is distributed in the nucleus

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

ARGOS induction by NAA still was observed in ... iaa28

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

we investigated the cellular localization of ARGOS in onion epi- dermal cells using 35S-ARGOS-GFP and 35S-GFP-ARGOS fusion genes ... ARGOS is distributed in the ... cytosol

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

de- creased levels of ARGOS expression were observed in axr1-3 ... and the induction of ARGOS by NAA was attenu- ated in the weak allele axr1-3

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

plants expressing an ARGOS– β-glucuronidase(GUS) ... In 12-day-old seedlings, GUS staining was observed ... juvenile leaf ... petioles

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

ANT expression persisted in rosette leaves of 40-day-old 35S-ARGOS plants

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

plants expressing an ARGOS– β-glucuronidase(GUS) ... In 12-day-old seedlings, GUS staining was observed clearly in leaf primordia

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

ARGOS ... was almost undetectable in mature leaves

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

prolonged expression of CycD3;1 also was detected in 35S-ARGOS leaves

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

One gene, which is identical to the putative gene At3g59900 in the Arabidopsis database, was found to be highly induced by NAA (data not shown). We designated this gene ARGOS (for Auxin-Regulated Gene involved in Organ Size; see below). RNA gel blot analysis confirmed the auxin induction of ARGOS in both roots and aerial parts (Figure 1B

Hu Y, Xie Q, Chua NH - The Arabidopsis auxin-inducible gene ARGOS controls lateral organ size

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  • Gene expression

AtGRF1 through AtGRF6 ... expression was low in mature stems and leaves

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF7 ... predominantly expressed in shoot tips and flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 ... expression was low in mature stems and leaves

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

Leaf tissues were stained ... over the whole leaf area in ... AtGRF2::GUS

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 genes were strongly expressed in roots, upper stems, and shoot tips containing the shoot apical meristem (SAM) and flower buds, as well as in mature flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

The SAM tissues were also stained in seedlings and at the reproductive stage of AtGRF3::GUS plants

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 ... expression was low in mature stems and leaves

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 genes were strongly expressed in roots, upper stems, and shoot tips containing the shoot apical meristem (SAM) and flower buds, as well as in mature flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 genes were strongly expressed in roots, upper stems, and shoot tips containing the shoot apical meristem (SAM) and flower buds, as well as in mature flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 genes were strongly expressed in roots, upper stems, and shoot tips containing the shoot apical meristem (SAM) and flower buds, as well as in mature flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 ... expression was low in mature stems and leaves

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 ... expression was low in mature stems and leaves

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 genes were strongly expressed in roots, upper stems, and shoot tips containing the shoot apical meristem (SAM) and flower buds, as well as in mature flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

The transcript of AtGRF9 was detected in the SAM and flower buds only after a prolonged exposure of the PhosphoImager screen (data not shown

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

Staining in leaves of AtGRF3::GUS plants was restricted to the very early stage of emerging leaves (Figure 3l), after which no staining in leaves was visible anymore (data not shown), reflecting the low transcript level of AtGRF3 in leaf tissues on an RNA gel blot

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 genes were strongly expressed in roots, upper stems, and shoot tips containing the shoot apical meristem (SAM) and flower buds, as well as in mature flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF1 through AtGRF6 ... expression was low in mature stems and leaves

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

AtGRF8 ... predominantly expressed in shoot tips and flowers

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

Leaf tissues were stained along the veins ... in AtGRF1::GUS

Kim JH, Choi D, Kende H - The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis

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  • Gene expression

KAN2 ... in as2-1 mutants. No significant differences in the transcript levels

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

KAN2 transcripts were detectable in 35S:AS2 shoots, but at reduced levels compared with those in the wild type

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

KAN1 ... in as2-1 mutants. No significant differences in the transcript levels

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS1 transcripts were detected in all tissues tested

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

YAB3 ... in as2-1 mutants. No significant differences in the transcript levels

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

LOB transcripts were not detected in rosette leaf blades

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

Transcript levels of FIL ... were reduced in 35S:AS2 shoots

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

35S:AS2 ... reduction in ... BP transcript levels

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

KAN1 ... transcripts were detectable in 35S:AS2 shoots, but at reduced levels compared with those in the wild type

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

35S:AS2 plants ... KNAT2:GUS expression ... was reduced in some class- I seedlings and all class-II individuals

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

LOB transcripts ... were detected in petioles

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

35S:AS2 ... STM transcript levels ... were increased in class-IIB seedlings

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS1 transcripts were detected in both petioles and blades of rosette leaves and appeared to be slightly more abundant in blade tissue, whereas AS2 transcripts were more abun- dant in petioles

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

the majority of class-I 35S:AS2 plants retained high lev- els of KNAT2:GUS expression, similar to the parental line

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS2 transcripts ... were detected in cotyledons

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS2 transcripts were detected in rosette leaves, where they were more abundant in the petiole than in the blade

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

BP:GUS background, all 102 seedlings carrying the 35S:AS2 transgene showed a reduction in staining intensity relative to the wild type

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

transcript levels of PHB, a gene that regulates adaxial identity, were increased in 35S:AS2 shoots of both classes, with the more severe class-IIB seedlings showing higher levels than class-I seedlings

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS2 transcripts were detected in most tissues tested

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

as1 35S:AS2 ... We detected no change in BP transcript levels in these plants

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

Transcript levels of ... YAB3 ... were reduced in 35S:AS2 shoots

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS2 transcript levels were increased slightly in ... fil-8 yab3-2 double mutants

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

PHB in as2-1 mutants. No significant differences in the transcript levels

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS2 transcript levels were increased slightly in ... phb-1d mutants

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

35S:AS2 ... Higher levels of WUS transcripts also were detected in class-IIB seedlings

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

35S:AS2 ... reduction in ... KNAT6 transcript levels was observed in ... transgenic seedlings

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

In kan1 kan2 double mutants, AS2 transcripts were de- tected at wild-type levels

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

FIL ... in as2-1 mutants. No significant differences in the transcript levels

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

AS1 transcripts were detected in both petioles and blades of rosette leaves and appeared to be slightly more abundant in blade tissue, whereas AS2 transcripts were more abun- dant in petioles

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

35S:AS2 ... reduction in KNAT2 ... transcript levels was observed in ... transgenic seedlings

Lin WC, Shuai B, Springer PS - The Arabidopsis LATERAL ORGAN BOUNDARIES-domain gene ASYMMETRIC LEAVES2 functions in the repression of KNOX gene expression and in adaxial-abaxial patterning

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  • Gene expression

At 2 DAG, ARR5:GUS activity was completely absent in the shoot apical meristem (SAM) of 35S:AtCKX1 transgenic plants

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX5:GUS ... was detected in the rib zone of the axillary shoot meristems

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX4:GUS ... GUS staining was present in epidermal pavement cells

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX6:GUS ... the AtCKX6 promoter was active during the maturation phase of stomatal guard cells but not in fully mature stomata in older leaves

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

epidermal leaf cells of plants expressing high levels of AtCKX3-GFP accu- mulated fluorescence in the large central vacuole

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX6:GUS expression ... was undetectable in fully expanded leaves

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX1-GFP ... was not detected in vacuoles. However, AtCKX1-GFP fluorescence was detected in vacuoles of mainly smaller root cells, such as those of the vascular cylinder (Figure 10K). This finding suggests that vacuolar targeting of AtCKX1-GFP might be specific to certain cell types, or, more likely, that the AtCKX1-GFP expression level was lower and thus stained only smaller vacuoles. To- gether, these data support the conclusion that the final destina- tion of AtCKX1 and AtCKX3 is the vacuole

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

ARR5:GUS activity was reduced strongly during various developmental stages of 35S:AtCKX1 plants

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

Very strong AtCKX4:GUS expression was detected in stipules

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

In the shoot, AtCKX5:GUS expression was confined to the edges at the most basal part of the youngest leaves

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX6:GUS expression was localized primarily to the vas- cular system of developing cotyledons

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX2-GFP fluorescence to be distributed as a thin, more or less discontinuous line at the cell periphery and around nuclei (Figure 10D). In an optical section at the level of the cor- tex cytoplasm, the fluorescence appeared as a reticulate po- lygonal network often linked with punctuated structures (Fig- ure 10E). Based on published data, this distinct pattern can be identified as indicating localization to the ER

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX2 promoter was detected in the shoot apex

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

High AtCKX4:GUS activity was localized to trichomes

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX6:GUS expression was localized primarily to the vas- cular system of developing ... leaves

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX3: GUS transformants, in which GUS expression was driven by a 1.46-kb promoter fragment, we occasionally detected very weak expression in the young shoot tissues 2 weeks after germination (data not shown

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX1 promoter drove gene expression in the ... lateral shoot meristems

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX6:GUS ... activity was strongest in the vasculature of young growing leaves. It gradually decreased basipetally in older leaves and was undetectable in fully expanded leaves

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX2 promoter was detected ... in stipules

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX3-GFP entered the ER lumen

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX1 promoter drove gene expression in the shoot apex

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

the shoot, AtCKX5:GUS expression ... marking the developing leaf petiole

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

AtCKX1-GFP fusion marked the ER network in leaf epidermal cells

Werner T, Motyka V, Laucou V, Smets R, Van Onckelen H, Schmülling T - Cytokinin-deficient transgenic Arabidopsis plants show multiple developmental alterations indicating opposite functions of cytokinins in the regulation of shoot and root meristem activity

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  • Gene expression

In Northern blot experiments, ATHB16 mRNA was detected in all organs examined, the mRNA level being relatively high in rosette leaves, intermediate in roots, cauline leaves, inflorescences, and buds, but low in the stem and in siliques, as shown in Fig. 2A

Wang Y, Henriksson E, Söderman E, Henriksson KN, Sundberg E, Engström P - The Arabidopsis homeobox gene, ATHB16, regulates leaf development and the sensitivity to photoperiod in Arabidopsis

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  • Gene expression

DHS transcript was detectable in RNA preparations from leaves at all stages, which indicates that expression of this gene is required throughout the course of leaf development and senescence (Figure 1B). Of particular interest, however, is the finding that DHS expression was strongly upregulated in the third pair of rosette leaves between days 7 and 14 after emergence (Figure 1B). This upregulation coincides with bolting, which marks initiation of the conversion from vegetative to reproductive growth. Between days 14 and 21 after emergence, DHS transcript levels in the third pair of rosette leaves declined again (Figure 1B). However, there was a further increase in transcript abundance through days 28 and 35 after emergence during the period when there is extensive catabolism of macromolecules within the dying cells and concurrent translocation of nutrients out of the senescing leaves into the developing seeds

Wang TW, Lu L, Zhang CG, Taylor C, Thompson JE - Pleiotropic effects of suppressing deoxyhypusine synthase expression in Arabidopsis thaliana

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  • Gene expression

CPD ... down-regulated by brassinolide in the wild types studied, an effect that is abolished or extremely reduced by the ucu2 mutations

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

ROT3 ... down-regulated by brassinolide in the wild types studied, an effect that is abolished or extremely reduced by the ucu2 mutations

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the NCED3 ... in the wild-type plants after ... BR treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the ... BEE1 ... in the wild-type plants after auxin ... treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the NCED3 ... in the wild-type plants after auxin ... treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the ... UCU1 ... in the wild-type plants after ... BR treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the ... UCU1 ... in the wild-type plants after auxin ... treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the ... BEE1 ... in the wild-type plants after ... BR treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

CPD ... found down-regulated by brassinolide in the wild types studied

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

expression of ... CPD in the ucu1 mutant studied was higher than in the wild type in noninductive conditions

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

expression of ROT3 ... in the ucu1 mutant studied was higher than in the wild type in noninductive conditions and did not change significantly by auxin or brassinolide treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

ROT3 ... found down-regulated by brassinolide in the wild types studied

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the ... CycD3 ... the wild-type plants after auxin ... treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

We found no significant differences in the expression of the ... CycD3 ... in the wild-type plants after ... BR treatment

Pérez-Pérez JM, Ponce MR, Micol JL - The ULTRACURVATA2 gene of Arabidopsis encodes an FK506-binding protein involved in auxin and brassinosteroid signaling

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  • Gene expression

jag-3 ... JAG- VENUS fusion protein is located in the nucleus

Ohno CK, Reddy GV, Heisler MG, Meyerowitz EM - The Arabidopsis JAGGED gene encodes a zinc finger protein that promotes leaf tissue development

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  • Gene expression

As the cotyledon primordia continue to grow out during the heart stage, JAG mRNA expression is excluded from the tips of the cotyledon primordia but continues to be expressed in a band below this region of repressed expression

Ohno CK, Reddy GV, Heisler MG, Meyerowitz EM - The Arabidopsis JAGGED gene encodes a zinc finger protein that promotes leaf tissue development

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  • Gene expression

In the torpedo stage embryo, JAG expression continues to be absent at the tip of the cotyledon primordia (Fig. 6C). Cells in the epidermis of the cotyledon have a lower level of JAG transcripts than cells in the inner layers

Ohno CK, Reddy GV, Heisler MG, Meyerowitz EM - The Arabidopsis JAGGED gene encodes a zinc finger protein that promotes leaf tissue development

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  • Gene expression

JAG transcripts ... are absent from the SAM

Ohno CK, Reddy GV, Heisler MG, Meyerowitz EM - The Arabidopsis JAGGED gene encodes a zinc finger protein that promotes leaf tissue development

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  • Gene expression

JAG is also expressed in developing leaf primordia of the seedling at 3.5 days and/until 7 days after germination. It is initially expressed throughout the young primordium but later expression becomes excluded from the distal tip of the primordium (Fig. 6D-F). Reduced JAG expression is also detected at the proximal base of the leaf primordia

Ohno CK, Reddy GV, Heisler MG, Meyerowitz EM - The Arabidopsis JAGGED gene encodes a zinc finger protein that promotes leaf tissue development

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  • Gene expression

JAG mRNA is first detected in late transition stage embryos in cells corresponding to the cotyledon primordia

Ohno CK, Reddy GV, Heisler MG, Meyerowitz EM - The Arabidopsis JAGGED gene encodes a zinc finger protein that promotes leaf tissue development

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  • Gene expression

jag-5D ... JAG RNA is also detected in the mutant in other tissues in which it is normally not expressed, such as the inflorescence meristem and ovules

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

We confirmed the predicted subcellular localization of JAG with a GFP fusion, which localizes to the nucleus

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

JAG RNA accumulates in the initiating bracts of jag-5D heterozygotes (Fig. 6I), where it is maintained long after emergence of the bracts

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

By RT-PCR, JAG RNA is detected during vegetative and reproductive development in the shoot apex

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

No JAG expression was detected in the petioles

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

JAG mRNA ... is absent from the shoot apical meristem

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

JAG mRNA is detected in emerging leaf primordia

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

not in ... leaves ... JGL mRNA

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

Serial sections through leaf primordia revealed that JAG is predominantly expressed in the blade regions

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

JAG mRNA is localized in the distal region of leaves

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

By RT-PCR, JAG RNA is ... not in ... leaves

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

is detected during vegetative and reproductive development in the shoot apex ... JGL mRNA

Dinneny JR, Yadegari R, Fischer RL, Yanofsky MF, Weigel D - The role of JAGGED in shaping lateral organs

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  • Gene expression

1-h BR treatments resulted in increased EXO transcript levels in ... wild-type ... plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

The KCS1 gene showed weaker expression in untreated dwf1-6 ... plants in comparison to untreated wild-type plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

BR-deficient dwf1-6 ... plants showed weaker EXO expression

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

Exp5 ... induced upon 1-h BR treatments in ... dwf1-6 plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

Real-time RT-PCR analysis confirmed increased ... δ-TIP transcript levels in soil-grown 35S::EXO T2 generation plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

Northern blot analysis confirmed elevated KCS1 ... mRNA levels in T1 generation 35S::EXO plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

In agreement with our previous data, increased EXO mRNA levels were found in BR-treated plants (Table 1). Northern blot analysis confirmed the BR induction

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

CPD antisense plants showed weaker EXO expression

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

KCS1 ... decreased mRNA levels in T1 generation EXO-RNAi plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

δ-TIP ... induced upon 1-h BR treatments in ... dwf1-6 plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

2,4-D (10 nM, 0.1 μM, and 1 μM; 1 h and 3 h) ... did not alter EXO transcript levels

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

AGP4 ... induced upon 1-h BR treatments in wild-type ... plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

GA (0.1 μM and 1 μM GA4/GA7; 1 h and 3 h) ... did not alter EXO transcript levels

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

Northern blot analysis confirmed elevated ... Exp5 ... mRNA levels in T1 generation 35S::EXO plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

δ-TIP ... induced upon 1-h BR treatments in wild-type ... plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

Northern blot analysis confirmed elevated ... AGP4 mRNA levels in T1 generation 35S::EXO plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

KCS1 ... induced upon 1-h BR treatments in ... dwf1-6 plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

The KCS1 gene showed weaker expression in untreated ... CPD antisense plants in comparison to untreated wild-type plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

AGP4 ... decreased mRNA levels in T1 generation EXO-RNAi plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

Exp5 ... decreased mRNA levels in T1 generation EXO-RNAi plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

1-h BR treatments resulted in increased EXO transcript levels in ... dwf1-6 plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

KCS1 ... induced upon 1-h BR treatments in wild-type ... plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

AGP4 ... induced upon 1-h BR treatments in ... dwf1-6 plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

ethylene precursor ACC (0.1 μM, 1 μM; 1 h and 3 h) did not alter EXO transcript levels

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

Exp5 ... induced upon 1-h BR treatments in wild-type ... plants

Coll-Garcia D, Mazuch J, Altmann T, Müssig C - EXORDIUM regulates brassinosteroid-responsive genes

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  • Gene expression

transgenic WIN1 overexpressors ... KCS1, which is predicted to encode a ketoacyl-CoA synthase involved in wax biosynthesis ... appeared to be up-regulated

Broun P, Poindexter P, Osborne E, Jiang CZ, Riechmann JL - WIN1, a transcriptional activator of epidermal wax accumulation in Arabidopsis

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  • Gene expression

To determine the effects of WIN1 on gene expression, Northern analysis was performed by using total RNA isolated from leaves of overexpressing lines ... CER1 presented the most striking change in gene expression: its transcript level was clearly correlated with the strength of WIN1 overexpression

Broun P, Poindexter P, Osborne E, Jiang CZ, Riechmann JL - WIN1, a transcriptional activator of epidermal wax accumulation in Arabidopsis

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  • Gene expression

WIN1 is expressed at higher levels in flowers than in any other tissues. Expression was also detectable, although at lower levels, in stems, siliques, and rosette leaves

Broun P, Poindexter P, Osborne E, Jiang CZ, Riechmann JL - WIN1, a transcriptional activator of epidermal wax accumulation in Arabidopsis

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  • Gene expression

transgenic WIN1 overexpressors ... CER2, a presumed regulatory protein ... appeared to be up-regulated

Broun P, Poindexter P, Osborne E, Jiang CZ, Riechmann JL - WIN1, a transcriptional activator of epidermal wax accumulation in Arabidopsis

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  • Gene expression

RNA gel blot analysis indicated that HLR mRNA accumulates in all the organs that we tested (flower bud, stem, leaf and root; data not shown), which is consistent with the pleiotropic phenotype of the hlr mutant. In particular, mRNA accumulated greatly in organs containing meristems, suggesting that the HLR gene works throughout the entire plant, especially in the meristematic regions

Ueda M, Matsui K, Ishiguro S, Sano R, Wada T, Paponov I, Palme K, Okada K - The HALTED ROOT gene encoding the 26S proteasome subunit RPT2a is essential for the maintenance of Arabidopsis meristems

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  • Gene expression

We then examined expression of the HLR gene in meristems by in situ RNA hybridization experiments ... In the shoot, the HLR gene was expressed uniformly in the SAM in both the vegetative and the reproductive phase

Ueda M, Matsui K, Ishiguro S, Sano R, Wada T, Paponov I, Palme K, Okada K - The HALTED ROOT gene encoding the 26S proteasome subunit RPT2a is essential for the maintenance of Arabidopsis meristems

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  • Gene expression

hlr mutants ... In 11-day-old mutant seedlings, the WUS expression domain was markedly enlarged, and was expanded to outer and/or inner cell layers (Fig. 5B). Furthermore, WUS mRNA accumulation was sometimes detected in some groups of cells at abnormal places

Ueda M, Matsui K, Ishiguro S, Sano R, Wada T, Paponov I, Palme K, Okada K - The HALTED ROOT gene encoding the 26S proteasome subunit RPT2a is essential for the maintenance of Arabidopsis meristems

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  • Gene expression

No signal was detected in the crl mutant

Asano T, Yoshioka Y, Kurei S, Sakamoto W, Machida Y; Sodmergen - A mutation of the CRUMPLED LEAF gene that encodes a protein localized in the outer envelope membrane of plastids affects the pattern of cell division, cell differentiation, and plastid division in Arabidopsis

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  • Gene expression

The CRL gene was ubiquitously expressed

Asano T, Yoshioka Y, Kurei S, Sakamoto W, Machida Y; Sodmergen - A mutation of the CRUMPLED LEAF gene that encodes a protein localized in the outer envelope membrane of plastids affects the pattern of cell division, cell differentiation, and plastid division in Arabidopsis

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  • Gene expression

CRL protein is localized in the outer envelope membrane of chloroplasts

Asano T, Yoshioka Y, Kurei S, Sakamoto W, Machida Y; Sodmergen - A mutation of the CRUMPLED LEAF gene that encodes a protein localized in the outer envelope membrane of plastids affects the pattern of cell division, cell differentiation, and plastid division in Arabidopsis

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  • Gene expression

The ROT4 expression was highest in the shoot apices

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

ROT4 ... Expression in the mature cotyledons was extremely low

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

When the ROT4 antisense probe was hybridized to rot4-1D materials, unlike wild type, a strong signal was consistently observed (Figure 4f�l). This agreed with the RT-PCR results, which also indicated higher expression in the rot4-1D mutant than in wild type. In seedlings, there was little expression in the shoot apical meristem (Figure 4f), whereas young leaf primordia showed expression throughout the lamina of young leaf primordia (Figure 4f,g). In cotyledons and older leaves, expression was restricted to vasculature (Figure 4f,g)

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

To determine the intracellular localization of the ROT4 protein, we examined young leaves of 35S::ROT4�GFP transgenic Arabidopsis plants using confocal microscopy ... ROT4�GFP fusion protein was localized to the plasma membrane

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

The ROT4 expression was ... somewhat reduced in the leaf primordia

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

In young seedlings, however, the expression of ROT4 was clearly detected in shoots

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

ROT4 is expressed in wild-type leaves during early developmental stages

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

accumulation of ROT4 mRNA was not detected in mature rosette leaves

Narita NN, Moore S, Horiguchi G, Kubo M, Demura T, Fukuda H, Goodrich J, Tsukaya H - Overexpression of a novel small peptide ROTUNDIFOLIA4 decreases cell proliferation and alters leaf shape in Arabidopsis thaliana

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  • Gene expression

Vascular systems were also strongly stained throughout the whole plant ... AHK4:GUS

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

strong staining was mainly localized in ... growing leaf ... AHK3:GUS

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

In various organs, the AHK genes are expressed nearly ubiquitously but at low levels. In seedlings, strong staining was mainly localized in meristematic tissues, such as the SAM ... AHK4:GUS

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

strong staining was mainly localized in ... growing leaf ... AHK2:GUS

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

AHK3:GUS ... Vascular systems were also strongly stained throughout the whole plant

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

AHK2:GUS ... Vascular systems were also strongly stained throughout the whole plant

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

In various organs, the AHK genes are expressed nearly ubiquitously but at low levels. In seedlings, strong staining was mainly localized in meristematic tissues, such as the SAM ... AHK2:GUS

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

In various organs, the AHK genes are expressed nearly ubiquitously but at low levels. In seedlings, strong staining was mainly localized in meristematic tissues, such as the SAM ... AHK3:GUS

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

strong staining was mainly localized in ... growing leaf ... AHK4:GUS

Nishimura C, Ohashi Y, Sato S, Kato T, Tabata S, Ueguchi C - Histidine kinase homologs that act as cytokinin receptors possess overlapping functions in the regulation of shoot and root growth in Arabidopsis

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  • Gene expression

The use of promoter-reporter gene fusions suggested that KAN ... phloem-associated vascular bundle expression

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

kan1 kan2 syd ... PHB was expressed throughout the developing leaves

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

KAN4 appears to have a more limited expression pattern in the ovules

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

YAB3 expression ... in an otherwise wild-type background, GUS activity was detected in the abaxial regions of developing yab3-2 leaves

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

FIL expression was detected throughout young AS1>>KAN2 leaf primordia (Fig. 3I). However, unlike wild-type leaves in which FIL expression is maintained in the marginal abaxial regions (Fig. 3H), FIL expression in AS1>>KAN2 was transient, only being detected in one leaf per apex

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

heart stage of embryogenesis ... KAN3 ... expression pattern in the abaxial basal portion of emerging cotyledon primordia

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

in wild type, PHB mRNA ... was restricted to the adaxial domain as developing primordia separated from the meristem

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

no PHB expression was detected in AS1>>KAN2 leaves

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

in wild type, PHB mRNA was localized to the SAM

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

PHB was localized to the adaxial regions of wild-type leaves

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

The use of promoter-reporter gene fusions suggested that KAN ... phloem-associated vascular bundle expression

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

PHB was expressed throughout kan1 kan2 kan3 leaf primordia, although there was still a gradient with expression highest towards the adaxial side

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

kan1 kan2 syd ... FIL expression was greatly reduced in this background

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

YAB3 ... β-glucuronidase (GUS) activity was undetectable in the kan1-2 kan2-1 kan3-1 yab3-2

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

in AS1>>KAN2 ... a low level of PHB expression was still present in the apical meristem

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

The use of promoter-reporter gene fusions suggested that KAN1 ... phloem-associated vascular bundle expression

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

heart stage of embryogenesis, KAN1 ... expression pattern in the abaxial basal portion of emerging cotyledon primordia

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

heart stage of embryogenesis ... KAN2 ... expression pattern in the abaxial basal portion of emerging cotyledon primordia

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

KAN1 is expressed in the abaxial regions of all lateral organs

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

in wild type, PHB mRNA ... Later expression was confined to the provascular and vascular tissues of leaves and stems

Eshed Y, Izhaki A, Baum SF, Floyd SK, Bowman JL - Asymmetric leaf development and blade expansion in Arabidopsis are mediated by KANADI and YABBY activities

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  • Gene expression

In ... situ hybridization showed that the timing and domain of AG mRNA accumulation in hua1-1 hua2-1 hen3-1 flowers were normal

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

GUS activity ... showed that HEN3 is expressed in young, presumably dividing, tissue, such as ... young leaves

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

in hua1-1 hua2-1 hen3-1 flowers ... AG protein abundance was similar between hua1-1 hua2-1 ... flowers

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

in the ... hua1-1 hua2-1 hen3-1 flowers ... The abundance of ... AP2 ... was also increased

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

in the ... hua1-1 hua2-1 hen3-1 flowers ... The abundance of AP1 ... was also increased

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

hua1-1 hua2-1 hen3-1 flowers were defective in the spatial control of AP1 expression

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

We performed in situ hybridization to determine the localization of HEN3 RNA in inflorescence meristems and in flowers. HEN3 RNA was present throughout the inflorescence meristem, the inflorescence stem and young flowers

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

In situ hybridization showed that histone H4, a gene known to be expressed in a cell cycle-dependent manner, was expressed similarly in wild-type and hen3-1 SAMs

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

hua1-1 hua2-1 hen3-1 flowers were defective in the ... temporal control of WUS expression in flower development

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

RNA filter hybridization showed that HEN3 RNA was present in ... stems

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

GUS activity showed that HEN3 is expressed in young, presumably dividing, tissue, such as shoot ... tips

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

HEN3 RNA ... was more abundant in ag-3 inflorescences

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

GUS activity ... showed that HEN3 is expressed in young, presumably dividing, tissue, such as ... flowers

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

We performed RNA filter hybridization to determine whether the hen3-1 mutation also results in reduced AG RNA levels in the hua1-1 hua2-1 background ... Three AG RNAs, RNA1, RNA2 and AG mRNA, can be detected in hua1-1 hua2-1 and hua1-1 hua2-1 hen3-1 flowers ... hen3-1 resulted in an increase in abundance in both the intron-containing RNAs and the mRNA in the hua1-1 hua2-1 background

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

RNA filter hybridization showed that HEN3 RNA was present in leaves

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

In situ hybridization showed that histone H4, a gene known to be expressed in a cell cycle-dependent manner, was expressed similarly in wild-type and hen3-1 ... leaf primordia

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

RNA filter hybridization showed that HEN3 RNA was present in ... inflorescences

Wang W, Chen X - HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ron2-1 ... homozygous plants ... STM expression level in each mutant tested was reduced 10–20-fold compared with that of the wild type

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... ron2-2 ... homozygous plants ... AS2 transcript levels were normal in the mutants and did not account for the reduction in STM transcript level

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ron2-1 ... homozygous plants ... AS2 transcript levels were normal in the mutants and did not account for the reduction in STM transcript level

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... ron2-2 ... homozygous plants ... AG expression was measured on the leaf samples described above and no significant differences with the wild type were found

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... lug- 1 homozygous plants ... AS1 ... transcript levels were normal in the mutants and did not account for the reduction in STM transcript level

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... lug- 1 homozygous plants ... AG expression was measured on the leaf samples described above and no significant differences with the wild type were found

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... lug- 1 homozygous plants ... STM expression level in each mutant tested was reduced 10–20-fold compared with that of the wild type

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ron2-1 ... homozygous plants ... AS1 ... transcript levels were normal in the mutants and did not account for the reduction in STM transcript level

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ron2-1 ... homozygous plants ... AG expression was measured on the leaf samples described above and no significant differences with the wild type were found

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... ron2-2 ... homozygous plants ... AS1 ... transcript levels were normal in the mutants and did not account for the reduction in STM transcript level

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... ron2-2 ... homozygous plants ... STM expression level in each mutant tested was reduced 10–20-fold compared with that of the wild type

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

The expression of the above- mentioned genes was quantified by real-time PCR in expanding leaves collected from ... lug- 1 homozygous plants ... AS2 transcript levels were normal in the mutants and did not account for the reduction in STM transcript level

Cnops G, Jover-Gil S, Peters JL, Neyt P, De Block S, Robles P, Ponce MR, Gerats T, Micol JL, Van Lijsebettens M - The rotunda2 mutants identify a role for the LEUNIG gene in vegetative leaf morphogenesis

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  • Gene expression

level of HLS1 protein was increased in response to ethylene treatment

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

The in situ localization of ARF2 mRNA in hls1-1 mutants also revealed that the expression patterns of ARF2 in cotyledons and hypocotyl were not affected by the hls1-1 mutation

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

level of ARF2 was ... not affected in hls1-1 mutant upon exposure to light

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Our studies show that ARF2 protein levels were unchanged by treatment with various concentrations of auxin (Figure 4C), while auxin-inducible IAA1 mRNA was increased significantly by the same auxin treatment. These results suggest that the abundance of the ARF2 is not mediated by an indirect effect of ethylene on auxin levels

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Transgenic seedlings that overexpress HLS1 have slightly lower ARF2 protein levels than that observed in wild-type

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

ARF2 also showed expression in the cotyledons and the hypocotyl after hook opening upon exposure of etiolated seedlings to light

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

level of ARF2 protein was decreased upon exposure to ethylene

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

level of HLS1 transcription is increased by ethylene (Lehman et al., 1996)

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

ARF2 mRNA was found to be present in ... etiolated seedlings ... in the ... leaf primordia

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

ARF2 mRNA was found to be present in ... etiolated seedlings ... in the cotyledons

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Immunoblot analyses of etiolated seedlings that were treated with ACC with or without MG132, a specific inhibitor of the proteasome-dependent protein degradation, revealed that MG132 suppressed the ethylene-dependent decrease in ARF2 protein levels (Figure 3C). These results strongly suggest that ethylene-mediated degradation of the ARF2 protein is via a proteasome-dependent pathway

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Interestingly, the arf2-3 mutation partially restored DR5::GUS expression within cells located on the concave side of the hook in the arf2-3 hls1-1 double mutant in the presence of ethylene

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

histochemical staining of transgenic seedlings expressing pARF2::GUS:ARF2 in wild-type, hls1 mutant, and light-grown wild-type seedlings revealed that the ARF2 protein was mainly expressed in the apical portion of the hypocotyl and in the cotyledons, and these patterns were not affected by the hls1-1 mutation or exposure to light (Figure 2F)

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

histochemical staining of transgenic seedlings expressing pARF2::GUS:ARF2 in wild-type, hls1 mutant, and light-grown wild-type seedlings revealed that the ARF2 protein was mainly expressed in the apical portion of the hypocotyl and in the cotyledons, and these patterns were not affected by the hls1-1 mutation or exposure to light (Figure 2F)

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Immunoblot analyses revealed that the level of HLS1 protein was decreased upon light exposure, even in the presence of the ethylene precursor ACC

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

ARF2 mRNA was found to be present in the apical hook region of etiolated seedlings

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Since neither expression patterns nor transcription levels of ARF2 (data not shown) were affected by the loss of HLS1 function

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

DR5::GUS was only expressed within cells located at the concave side of the hypocotyl hook (Figure 5), and the level of expression was enhanced by ethylene treatment. However, the expression level in the cotyledon was highly variable. In hls1-1 mutants, this highly localized expression pattern was completely abolished

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

level of ARF2 was increased in wild-type seedlings ... upon exposure to light

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Polyclonal antibodies that specifically recognize the ARF2 protein were generated (Figure 3A). Immunoblot analysis was used to detect ARF2 protein levels in 3-day-old etiolated seedlings. Consistent with the transgenic expression of pARF2::GUS:ARF2 in wild-type and hls1-1 mutant, the level of ARF2 protein was increased in the hls1-1 mutant

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

Interestingly, the intensity of GUS staining in etiolated hls1 mutants and in wild-type seedlings exposed to light was higher than that observed in etiolated wild-type seedlings (Figure 2F), suggesting that the level of GUS:ARF2 protein may be regulated by HLS1 functions

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

arf2-3 had no effect on the expression pattern of DR5::GUS in wild-type plants

Li H, Johnson P, Stepanova A, Alonso JM, Ecker JR - Convergence of signaling pathways in the control of differential cell growth in Arabidopsis

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  • Gene expression

In older leaves (rosette) as well as in cauline leaves, SHN3 was mainly expressed in the central vein with lower expression in the entire blade

Aharoni A, Dixit S, Jetter R, Thoenes E, van Arkel G, Pereira A - The SHINE clade of AP2 domain transcription factors activates wax biosynthesis, alters cuticle properties, and confers drought tolerance when overexpressed in Arabidopsis

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  • Gene expression

SHN1/WIN1 ... constructs, which linked 2.0-kb DNA sequences upstream of the predicted ATG codon of each gene to the β-glucuronidase (GUS) reporter gene ... SHN1/WIN1 expression was detected in the inflorescence and root tissues but not in stem, mature rosette leaves, or cauline leaves

Aharoni A, Dixit S, Jetter R, Thoenes E, van Arkel G, Pereira A - The SHINE clade of AP2 domain transcription factors activates wax biosynthesis, alters cuticle properties, and confers drought tolerance when overexpressed in Arabidopsis

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  • Gene expression

SHN1/WIN1 ... constructs, which linked 2.0-kb DNA sequences upstream of the predicted ATG codon of each gene to the β-glucuronidase (GUS) reporter gene ... GUS expression was observed ... in ... support cells of their trichomes

Aharoni A, Dixit S, Jetter R, Thoenes E, van Arkel G, Pereira A - The SHINE clade of AP2 domain transcription factors activates wax biosynthesis, alters cuticle properties, and confers drought tolerance when overexpressed in Arabidopsis

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  • Gene expression

SHN1/WIN1 ... constructs, which linked 2.0-kb DNA sequences upstream of the predicted ATG codon of each gene to the β-glucuronidase (GUS) reporter gene ... GUS expression was observed ... in ... very young leaves in the rosette

Aharoni A, Dixit S, Jetter R, Thoenes E, van Arkel G, Pereira A - The SHINE clade of AP2 domain transcription factors activates wax biosynthesis, alters cuticle properties, and confers drought tolerance when overexpressed in Arabidopsis

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  • Gene expression

The SHN3 gene was most broadly expressed and was active in all plant organs. It showed expression in the vasculature and in the lateral root tip (Figure 9). When staining young 10-d-old seedlings, expression was detected in the support cells of trichomes present on the most newly formed leaves

Aharoni A, Dixit S, Jetter R, Thoenes E, van Arkel G, Pereira A - The SHINE clade of AP2 domain transcription factors activates wax biosynthesis, alters cuticle properties, and confers drought tolerance when overexpressed in Arabidopsis

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  • Gene expression

In older leaves (rosette) as well as in cauline leaves, SHN3 was mainly expressed in the central vein with lower expression in the entire blade

Aharoni A, Dixit S, Jetter R, Thoenes E, van Arkel G, Pereira A - The SHINE clade of AP2 domain transcription factors activates wax biosynthesis, alters cuticle properties, and confers drought tolerance when overexpressed in Arabidopsis

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  • Gene expression

RNA gel blot analysis of total RNAs, isolated from mock- or brassinolide-treated seedlings of wild-type ... revealed no detectable difference in the abundance of the TTL transcript between mock- and BR-treated seedlings

Nam KH, Li J - The Arabidopsis transthyretin-like protein is a potential substrate of BRASSINOSTEROID-INSENSITIVE 1

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  • Gene expression

To obtain a better picture of tissue specificity of TTL gene expression, we constructed a TTL-β-glucuronidase (GUS) reporter gene by fusing a 1.6-kb genomic fragment containing the native TTL promoter to a GUS reporter gene. As shown in Figures 3C to 3F, the GUS activity was detected mainly in ... leaf primordia

Nam KH, Li J - The Arabidopsis transthyretin-like protein is a potential substrate of BRASSINOSTEROID-INSENSITIVE 1

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  • Gene expression

To obtain a better picture of tissue specificity of TTL gene expression, we constructed a TTL-β-glucuronidase (GUS) reporter gene by fusing a 1.6-kb genomic fragment containing the native TTL promoter to a GUS reporter gene. As shown in Figures 3C to 3F, the GUS activity was detected mainly in ... newly expanding young leaves

Nam KH, Li J - The Arabidopsis transthyretin-like protein is a potential substrate of BRASSINOSTEROID-INSENSITIVE 1

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  • Gene expression

Confocal microscopic analysis of the resulting TTL:GFP transgenic plants revealed a similar green fluorescent pattern between TTL:GFP and BRI1:GFP, indicating that TTL was indeed associated with the plasma membrane ... The membrane association of TTL was also confirmed by a cell fractionation assay. Membrane proteins of a transgenic TTL:GFP plant were separated from cytosolic proteins by differential centrifugation, these proteins were separated by SDS-PAGE, and the presence of TTL:GFP in the two fractions was detected by immunoblotting using a commercial anti-GFP antiserum. As shown in Figure 4B, both BRI1:GFP and TTL:GFP were mainly in the membrane fraction

Nam KH, Li J - The Arabidopsis transthyretin-like protein is a potential substrate of BRASSINOSTEROID-INSENSITIVE 1

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  • Gene expression

TTL was expressed in all the tissues that we analyzed, with the flower buds and elongating inflorescence stems accumulating the highest levels of the TTL transcripts

Nam KH, Li J - The Arabidopsis transthyretin-like protein is a potential substrate of BRASSINOSTEROID-INSENSITIVE 1

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  • Gene expression

GIF1 was ... expressed ... weakly in leaves

Kim JH, Kende H - A transcriptional coactivator, AtGIF1, is involved in regulating leaf growth and morphology in Arabidopsis

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  • Gene expression

Onion epidermal cells transformed transiently to express GIF1 fused to enhanced yellow fluorescent protein (EYFP) also showed nuclear speckles, which were distributed throughout the nucleus in 21 of 40 transformants

Kim JH, Kende H - A transcriptional coactivator, AtGIF1, is involved in regulating leaf growth and morphology in Arabidopsis

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  • Gene expression

GIF1 was strongly expressed in ... shoot tips containing the shoot apical meristem

Kim JH, Kende H - A transcriptional coactivator, AtGIF1, is involved in regulating leaf growth and morphology in Arabidopsis

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  • Gene expression

rdr6-11 ... expression was increased ... SPL3

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

rdr6-11 ... we examined the accumulation of miR156 ... Little or no difference in the levels of these miRNAs was observed

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

At5g18040 ... mRNA accumulates in sgs3-11 and rdr6-11, but not in zip-1

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

sgs3-11 ... expression was increased ... of ARF3/ETTIN

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

rdr6-11 ... expression was increased ... of ARF3/ETTIN

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

zip-1 ... expression was increased ... of ... SPL3

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

zip-1 ... expression was increased ... of ARF3/ETTIN

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

At1g63130 ... mRNA accumulates in sgs3-11 and rdr6-11, but not in zip-1

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

zip-1 ... expression was increased ... of ... ARF4

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

At1g63130 ... mRNA accumulates in sgs3-11

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

At5g18040 ... mRNA accumulates in sgs3-11

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

sgs3-11 ... expression was increased ... of ... ARF4

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

At5g18040 ... mRNA accumulates in ... rdr6-11

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

sgs3-11 ... expression was increased ... of ... SPL3

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

rdr6-11 ... expression was increased ... ARF4

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

At1g63130 ... mRNA accumulates in ... rdr6-11

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

sgs3-11 ... we examined the accumulation of miR156 ... Little or no difference in the levels of these miRNAs was observed

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

zip-1 ... we examined the accumulation of miR156 ... Little or no difference in the levels of these miRNAs was observed

Peragine A, Yoshikawa M, Wu G, Albrecht HL, Poethig RS - SGS3 and SGS2/SDE1/RDR6 are required for juvenile development and the production of trans-acting siRNAs in Arabidopsis

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  • Gene expression

In contrast with ATB2 and LHY, several other leaders tested drove translation as effectively in eif3h-1 as in the wild type; these included the leaders of ABSCISIC ACID INSENSITIVE5 (ABI5), the omega (Ω) leader of Tobacco mosaic virus (TMV), the small subunit of Rubisco (RBCS), and the bZip protein HY5 (Figure 7G). A moderate, yet significant (P < 0.05) difference in expression was observed for chlorophyll a/b binding protein 2 (CAB2

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

we examined whether and how eIF3h might affect the translation of specific mRNAs. Selected 5′ leader sequences were compared for their translational capacity between eif3h mutants and the wild type using a dual-luciferase reporter assay ... the activity of the FLUC reporter gene fused to the ATB2 leader was reduced fourfold, on average, in the eif3h-1 mutant compared with the wild type

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

we examined whether and how eIF3h might affect the translation of specific mRNAs. Selected 5′ leader sequences were compared for their translational capacity between eif3h mutants and the wild type using a dual-luciferase reporter assay ... the activity of the FLUC reporter gene fused to the ATB2 leader was reduced fourfold, on average, in the eif3h-1 mutant compared with the wild type ... Inhibition of translation was also observed for the leader of the myb protein LATE ELONGATED HYPOCOTYL (LHY

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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Vice versa, no difference was detected in the level of two eIF3 subunits, eIF3b and eIF3h, in csn1 or csn7 mutants

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

In contrast with ATB2 and LHY, several other leaders tested drove translation as effectively in eif3h-1 as in the wild type; these included the leaders of ABSCISIC ACID INSENSITIVE5 (ABI5), the omega (Ω) leader of Tobacco mosaic virus (TMV), the small subunit of Rubisco (RBCS), and the bZip protein HY5

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

In wild-type plants, the translational activity of the ATB2:FLUC reporter was specifically repressed by sucrose (Figure 9C), consistent with previous conclusions (Rook et al., 1998a); for comparison, the HY5 leader was insensitive to sucrose

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Morphological phenotypes of the eif3h-1 mutant ... suggested an altered auxin response. Consistent with this notion, the mRNA levels of two auxin-inducible genes were elevated slightly in the absence (IAA3 and IAA14) or the presence (IAA3) of added auxin, whereas the level of IAA17 remained normal (Figure 3G

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

In contrast with ATB2 and LHY, several other leaders tested drove translation as effectively in eif3h-1 as in the wild type; these included the leaders of ABSCISIC ACID INSENSITIVE5 (ABI5), the omega (Ω) leader of Tobacco mosaic virus (TMV), the small subunit of Rubisco (RBCS), and the bZip protein HY5

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Vice versa, no difference was detected in the level of two eIF3 subunits, eIF3b and eIF3h, in csn1 or csn7 mutants

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

To seek independent evidence for a role of eIF3h in translation initiation on specific mRNAs, we compared eif3h-1 mutants and the wild type for the distribution of specific mRNAs in sucrose gradients designed to fractionate polysomal and nonpolysomal RNA, followed by detection of specific transcripts by RT-PCR ... a reduction in the polysome loading of the endogenous ATB2 mRNA was detected in the eif3h-1 mutant

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Morphological phenotypes of the eif3h-1 mutant ... suggested an altered auxin response. Consistent with this notion, the mRNA levels of two auxin-inducible genes were elevated slightly in the absence (IAA3 and IAA14) or the presence (IAA3) of added auxin, whereas the level of IAA17 remained normal (Figure 3G

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Vice versa, no difference was detected in the level of two eIF3 subunits, eIF3b and eIF3h, in csn1 or csn7 mutants

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Vice versa, no difference was detected in the level of two eIF3 subunits, eIF3b and eIF3h, in csn1 or csn7 mutants

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

To investigate the role of eIF3h in Arabidopsis, we isolated a recessive mutant allele (eif3h-1) carrying a T-DNA insertion in the 10th exon (Figure 2A). A truncated eIF3h-related protein was detected in this allele

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Although eIF3h could associate with the CSN (Karniol et al., 1998), loss of eIF3h did not affect accumulation of its CSN4 or CSN5 subunits (Figure 4C

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Morphological phenotypes of the eif3h-1 mutant ... suggested an altered auxin response. Consistent with this notion, the mRNA levels of two auxin-inducible genes were elevated slightly in the absence (IAA3 and IAA14) or the presence (IAA3) of added auxin, whereas the level of IAA17 remained normal (Figure 3G

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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In wild-type plants, the translational activity of the ATB2:FLUC reporter was specifically repressed by sucrose (Figure 9C), consistent with previous conclusions (Rook et al., 1998a); for comparison, the HY5 leader was insensitive to sucrose

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

To seek independent evidence for a role of eIF3h in translation initiation on specific mRNAs, we compared eif3h-1 mutants and the wild type for the distribution of specific mRNAs in sucrose gradients designed to fractionate polysomal and nonpolysomal RNA, followed by detection of specific transcripts by RT-PCR ... For comparison, the rbcS mRNA did not significantly change its distribution between polysomal and nonpolysomal fractions

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Although eIF3h could associate with the CSN (Karniol et al., 1998), loss of eIF3h did not affect accumulation of its CSN4 or CSN5 subunits (Figure 4C

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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The eIF3h protein accumulated in all organs tested yet was most abundant in roots and flowers

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

Morphological phenotypes of the eif3h-1 mutant ... suggested an altered auxin response. Consistent with this notion, the mRNA levels of two auxin-inducible genes were elevated slightly in the absence (IAA3 and IAA14) or the presence (IAA3) of added auxin, whereas the level of IAA17 remained normal (Figure 3G

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

In contrast with ATB2 and LHY, several other leaders tested drove translation as effectively in eif3h-1 as in the wild type; these included the leaders of ABSCISIC ACID INSENSITIVE5 (ABI5), the omega (Ω) leader of Tobacco mosaic virus (TMV), the small subunit of Rubisco (RBCS), and the bZip protein HY5

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

An eIF3h protein truncated by ∼2 kD accumulated in the eif3h-2 mutant

Kim TH, Kim BH, Yahalom A, Chamovitz DA, von Arnim AG - Translational regulation via 5' mRNA leader sequences revealed by mutational analysis of the Arabidopsis translation initiation factor subunit eIF3h

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  • Gene expression

BOP1 ... is expressed at very high levels in the petiole relative to the blade

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

BOP1 transcripts are also present along the margin of young leaves, where the adaxial and abax- ial domains juxtapose

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

After germination, BOP1 transcripts ... are present in the rosette leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

The first stage at which BOP1 transcripts can be relia- bly detected is the torpedo stage of embryogenesis, when BOP1 is found in two discrete foci at the base of the develop- ing cotyledons, specifically on the adaxial side near the bound- ary with the shoot apical meristem

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

BOP1 appears to be transcribed at the same relative level in whole rosette leaves regardless of age

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

In maturing leaves, a low level of BOP1 expression becomes detectable across the adaxial por- tion of the leaf

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

As the leaves grow out, BOP1 is expressed strongly yet in a highly restricted pattern at the base of the leaf primordia on the adaxial side adjacent to the SAM

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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In bop1-1 mutant plants, BOP1 transcription is elevated in all tissues compared with the wild type and becomes readily detectable in cotyledons and cauline leaves (Fig. 5B), consistent with the manifestation of phenotypes in these tissues

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

After germination, BOP1 transcripts are not observed in the SAM

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

BOP1 is expressed at barely detectable levels in cotyledons

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE1 encodes a BTB/POZ domain protein required for leaf morphogenesis in Arabidopsis thaliana

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  • Gene expression

upon AtE2Fa over-expression ... we also observed ele- vated expression of CycB1, a mitotic cyclin, sug- gesting the involvement of AtE2Fa for further cell cycle progression

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

upon AtE2Fa over-expression ... we found that the expression of several cell cycle inhibitor genes, including ... KRP3 ... was also up- regulated

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

The positive cell cycle factors up- regulated upon AtE2Fa over-expression included genes for G1/S transition (CycD2)

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

The positive cell cycle factors up- regulated upon AtE2Fa over-expression included genes for ... DNA synthesis (RNR1

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

upon AtE2Fa over-expression ... we found that the expression of several cell cycle inhibitor genes, including RB1 ... was also up- regulated

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

upon AtE2Fa over-expression ... we found that the expression of several cell cycle inhibitor genes, including ... KRP5, was also up- regulated

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

Comparison of the expression levels in bulked leaf samples revealed that, while the expression of ATPK1 was not changed ... upon the over-expression of AtE2Fa

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

The positive cell cycle factors up- regulated upon AtE2Fa over-expression included genes for ... DNA synthesis ... PCNA

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

Comparison of the expression levels in bulked leaf samples revealed that ... the expression of ATPK19 was increased upon the over-expression of AtE2Fa

He SS, Liu J, Xie Z, O'Neill D, Dotson S - Arabidopsis E2Fa plays a bimodal role in regulating cell division and cell growth

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  • Gene expression

In wild-type first leaves, DR5:GUS appears 3 DAG in a single cell at the leaf distal tip (Table 4, Figure 5A). In mutant first leaves, DR5:GUS is evident with similar timing. However, the position is often asymmetric relative to the leaf, shifted to one side of the distal tip (Table 4, Figures 5B and 5C). Subsequent DR5:GUS expression in mutant leaf blades is slightly later than in the wild type (Table 4), and no differences in pattern are evident, although expression within the blade at these stages is very transient, so that pattern differences would be difficult to detect (Figures 5D to 5F). At this stage, distal tip expression coincides with the distal margin gap, and in mutant leaves, both sometimes appear asymmetrically placed (Figure 5E). Asymmetric DR5:GUS expression is especially evident when expression begins in hydathodes (Table 4). In wild-type first leaves, hydathode expression usually appears in two points at equivalent positions along the leaf margin (Figure 5G). By contrast, expression in both as1-16 and as2-1 may begin at just one point and be followed by expression in another one or two, often unequally positioned points in as2-1 leaves (Figures 5H and 5I). Expression of DR5:GUS at this stage coincides with margin gaps (Figures 5J to 5L), and the margin gaps seem to contain more cells in the mutants than the wild type (cf. Figures 5K and 5L to 5J

Zgurski JM, Sharma R, Bolokoski DA, Schultz EA - Asymmetric auxin response precedes asymmetric growth and differentiation of asymmetric leaf1 and asymmetric leaf2 Arabidopsis leaves

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Consistent with basipetal decrease in cell division (Donnelly et al., 1999), at 5 DAG, cycB1:GUS expression is diminishing in the distal half of both wild-type and mutant leaves, and the number of cells expressing is again lower in as2-1

Zgurski JM, Sharma R, Bolokoski DA, Schultz EA - Asymmetric auxin response precedes asymmetric growth and differentiation of asymmetric leaf1 and asymmetric leaf2 Arabidopsis leaves

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  • Gene expression

At 4 DAG, cycB1:GUS ... number of cells expressing the reporter gene is reduced in both halves of as2-1 leaves

Zgurski JM, Sharma R, Bolokoski DA, Schultz EA - Asymmetric auxin response precedes asymmetric growth and differentiation of asymmetric leaf1 and asymmetric leaf2 Arabidopsis leaves

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  • Gene expression

In wild-type first leaves, DR5:GUS appears 3 DAG in a single cell at the leaf distal tip (Table 4, Figure 5A). In mutant first leaves, DR5:GUS is evident with similar timing. However, the position is often asymmetric relative to the leaf, shifted to one side of the distal tip (Table 4, Figures 5B and 5C). Subsequent DR5:GUS expression in mutant leaf blades is slightly later than in the wild type (Table 4), and no differences in pattern are evident, although expression within the blade at these stages is very transient, so that pattern differences would be difficult to detect (Figures 5D to 5F). At this stage, distal tip expression coincides with the distal margin gap, and in mutant leaves, both sometimes appear asymmetrically placed (Figure 5E). Asymmetric DR5:GUS expression is especially evident when expression begins in hydathodes (Table 4). In wild-type first leaves, hydathode expression usually appears in two points at equivalent positions along the leaf margin (Figure 5G). By contrast, expression in both as1-16 and as2-1 may begin at just one point and be followed by expression in another one or two, often unequally positioned points in as2-1 leaves (Figures 5H and 5I). Expression of DR5:GUS at this stage coincides with margin gaps (Figures 5J to 5L), and the margin gaps seem to contain more cells in the mutants than the wild type (cf. Figures 5K and 5L to 5J

Zgurski JM, Sharma R, Bolokoski DA, Schultz EA - Asymmetric auxin response precedes asymmetric growth and differentiation of asymmetric leaf1 and asymmetric leaf2 Arabidopsis leaves

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  • Gene expression

At 4 DAG, cycB1:GUS expression is similar in distal and proximal leaf halves and shows no significant difference between the wild type and as1-16

Zgurski JM, Sharma R, Bolokoski DA, Schultz EA - Asymmetric auxin response precedes asymmetric growth and differentiation of asymmetric leaf1 and asymmetric leaf2 Arabidopsis leaves

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  • Gene expression

it has been reported that rosette leaves of transgenic plants carrying the ABI4::GUS construct have no detectable GUS activity (Arroyo et al. 2003

Kozuka T, Horiguchi G, Kim GT, Ohgishi M, Sakai T, Tsukaya H - The different growth responses of the Arabidopsis thaliana leaf blade and the petiole during shade avoidance are regulated by photoreceptors and sugar

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  • Gene expression

In seedlings overexpressing CYP72C1, the expression levels of TCH4 ... were reduced

Takahashi N, Nakazawa M, Shibata K, Yokota T, Ishikawa A, Suzuki K, Kawashima M, Ichikawa T, Shimada H, Matsui M - shk1-D, a dwarf Arabidopsis mutant caused by activation of the CYP72C1 gene, has altered brassinosteroid levels

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  • Gene expression

The CYP72C1 gene was expressed more strongly in the dark than in the light

Takahashi N, Nakazawa M, Shibata K, Yokota T, Ishikawa A, Suzuki K, Kawashima M, Ichikawa T, Shimada H, Matsui M - shk1-D, a dwarf Arabidopsis mutant caused by activation of the CYP72C1 gene, has altered brassinosteroid levels

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  • Gene expression

To confirm the expression of CYP72C1, we performed RT-PCR. We prepared total RNA from flowers, siliques, stems, cauline leaves and rosette leaves of 4-week-old plants and from roots in liquid culture. We observed CYP72C1 expression in all tissues examined and relatively strong expression in siliques and roots (Figure 5j)

Takahashi N, Nakazawa M, Shibata K, Yokota T, Ishikawa A, Suzuki K, Kawashima M, Ichikawa T, Shimada H, Matsui M - shk1-D, a dwarf Arabidopsis mutant caused by activation of the CYP72C1 gene, has altered brassinosteroid levels

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  • Gene expression

In seedlings overexpressing CYP72C1, the expression levels of ... BAS1 were reduced

Takahashi N, Nakazawa M, Shibata K, Yokota T, Ishikawa A, Suzuki K, Kawashima M, Ichikawa T, Shimada H, Matsui M - shk1-D, a dwarf Arabidopsis mutant caused by activation of the CYP72C1 gene, has altered brassinosteroid levels

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  • Gene expression

In seedlings overexpressing CYP72C1 ... CPD expression was slightly increased

Takahashi N, Nakazawa M, Shibata K, Yokota T, Ishikawa A, Suzuki K, Kawashima M, Ichikawa T, Shimada H, Matsui M - shk1-D, a dwarf Arabidopsis mutant caused by activation of the CYP72C1 gene, has altered brassinosteroid levels

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  • Gene expression

transgenic plants containing the 2.0-kb upstream promoter region of the CYP72C1 gene fused to the β-glucuronidase gene (GUS ... in light-grown seedlings it was seen in cotyledons

Takahashi N, Nakazawa M, Shibata K, Yokota T, Ishikawa A, Suzuki K, Kawashima M, Ichikawa T, Shimada H, Matsui M - shk1-D, a dwarf Arabidopsis mutant caused by activation of the CYP72C1 gene, has altered brassinosteroid levels

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  • Gene expression

In bop1-1 plants, KNAT1::GUS was expressed in a pattern similar to that in wild-type plants, but in more expanded regions

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

Examination of the expression pattern in single leaves of bop1-1 showed that, unlike in wild-type leaves, KNAT1::GUS was detected in the petioles of cotyledons and rosette leaves

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

KNAT6 transcript ... levels ... in the cotyledons and rosette leaves of bop1-1 seedlings were significantly higher than those in wild-type seedlings

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

in the case of the KNAT2 that showed only a slightly increased expression in the mutant rosette leaf

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

the KNAT1 ... transcript ... levels ... in the cotyledons and rosette leaves of bop1-1 seedlings were significantly higher than those in wild-type seedlings

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

the KNAT1 ... there were no notable differences between the wild-type and mutant SAM regions in the expression of these genes

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

KNAT2 ... there were no notable differences between the wild-type and mutant SAM regions in the expression of these genes

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

KNAT6 ... there were no notable differences between the wild-type and mutant SAM regions in the expression of these genes

Norberg M, Holmlund M, Nilsson O - The BLADE ON PETIOLE genes act redundantly to control the growth and development of lateral organs

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  • Gene expression

To determine the subcellular localization of the BOP2 protein, a 35S:BOP2�green fluorescent protein (GFP) transgene was introduced into bop1 bop2 plants by Agrobacterium-mediated transformation. Partial complementation of the phenotype conferred by bop1 bop2 was obtained for many of the resulting transgenic plant lines, indicating that the fusion protein had biological activity (data not shown). Confocal laser scanning of a seedling at 4 d after germination shows that in root cells, the BOP2-GFP fusion protein was localized to both the cytoplasm and the nucleus

Hepworth SR, Zhang Y, McKim S, Li X, Haughn GW - BLADE-ON-PETIOLE-dependent signaling controls leaf and floral patterning in Arabidopsis

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  • Gene expression

BOP2 ... transcripts ... were detected in leaves, stems, apices, flowers, and roots but not in siliques

Hepworth SR, Zhang Y, McKim S, Li X, Haughn GW - BLADE-ON-PETIOLE-dependent signaling controls leaf and floral patterning in Arabidopsis

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  • Gene expression

To determine the subcellular localization of the BOP2 protein, a 35S:BOP2�green fluorescent protein (GFP) transgene was introduced into bop1 bop2 plants by Agrobacterium-mediated transformation. Partial complementation of the phenotype conferred by bop1 bop2 was obtained for many of the resulting transgenic plant lines, indicating that the fusion protein had biological activity (data not shown). Confocal laser scanning of a seedling at 4 d after germination shows that in root cells, the BOP2-GFP fusion protein was localized to both the cytoplasm and the nucleus

Hepworth SR, Zhang Y, McKim S, Li X, Haughn GW - BLADE-ON-PETIOLE-dependent signaling controls leaf and floral patterning in Arabidopsis

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  • Gene expression

BOP1 ... transcripts ... were detected in leaves, stems, apices, flowers, and roots but not in siliques

Hepworth SR, Zhang Y, McKim S, Li X, Haughn GW - BLADE-ON-PETIOLE-dependent signaling controls leaf and floral patterning in Arabidopsis

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  • Gene expression

The expression of the ... ELO3 genes was monitored in different plant organs by RT-PCR: roots, young first leaves, whole seedlings (14 DAG), cotyledons, expanded first leaves, floral buds, and shoot apices (27 DAG). The three ELO genes were expressed in every plant organ examined

Nelissen H, Fleury D, Bruno L, Robles P, De Veylder L, Traas J, Micol JL, Van Montagu M, Inzé D, Van Lijsebettens M - The elongata mutants identify a functional Elongator complex in plants with a role in cell proliferation during organ growth

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  • Gene expression

The microarray experiment using mRNA of the shoot apices of the elo mutants showed that ... no difference in expression level was seen for the ELO3 gene between the elo3 mutant and Ler

Nelissen H, Fleury D, Bruno L, Robles P, De Veylder L, Traas J, Micol JL, Van Montagu M, Inzé D, Van Lijsebettens M - The elongata mutants identify a functional Elongator complex in plants with a role in cell proliferation during organ growth

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  • Gene expression

The expression of the ... ELO2 ... was monitored in different plant organs by RT-PCR: roots, young first leaves, whole seedlings (14 DAG), cotyledons, expanded first leaves, floral buds, and shoot apices (27 DAG ... were expressed in every plant organ examined

Nelissen H, Fleury D, Bruno L, Robles P, De Veylder L, Traas J, Micol JL, Van Montagu M, Inzé D, Van Lijsebettens M - The elongata mutants identify a functional Elongator complex in plants with a role in cell proliferation during organ growth

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  • Gene expression

The microarray experiment using mRNA of the shoot apices of the elo mutants showed that the expression of ELO2 in elo2 was only 20.1% that of the wild type

Nelissen H, Fleury D, Bruno L, Robles P, De Veylder L, Traas J, Micol JL, Van Montagu M, Inzé D, Van Lijsebettens M - The elongata mutants identify a functional Elongator complex in plants with a role in cell proliferation during organ growth

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  • Gene expression

The expression of the ELO1 ... was monitored in different plant organs by RT-PCR: roots, young first leaves, whole seedlings (14 DAG), cotyledons, expanded first leaves, floral buds, and shoot apices (27 DAG ... were expressed in every plant organ examined ... in every

Nelissen H, Fleury D, Bruno L, Robles P, De Veylder L, Traas J, Micol JL, Van Montagu M, Inzé D, Van Lijsebettens M - The elongata mutants identify a functional Elongator complex in plants with a role in cell proliferation during organ growth

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  • Gene expression

The expression of the ACL5 gene was examined in wild-type and tkv plants by reverse transcription (RT)-PCR and was found to be similarly up-regulated in tkv mutant plants (Fig. 7

Clay NK, Nelson T - Arabidopsis thickvein mutation affects vein thickness and organ vascularization, and resides in a provascular cell-specific spermine synthase involved in vein definition and in polar auxin transport

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  • Gene expression

The procambial-specific expression pattern continues during primary root development (Figs. 8, E and G, 9I) and early leaf development after an initially broad expression domain in leaf primordia (Figs. 8C and 9, E–H

Clay NK, Nelson T - Arabidopsis thickvein mutation affects vein thickness and organ vascularization, and resides in a provascular cell-specific spermine synthase involved in vein definition and in polar auxin transport

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  • Gene expression

The procambial-specific expression pattern continues during primary root development (Figs. 8, E and G, 9I) and early leaf development after an initially broad expression domain in leaf primordia (Figs. 8C and 9, E–H

Clay NK, Nelson T - Arabidopsis thickvein mutation affects vein thickness and organ vascularization, and resides in a provascular cell-specific spermine synthase involved in vein definition and in polar auxin transport

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  • Gene expression

CYCD3;1 expressions were examined by RNA gel blot analysis and were found to be unchanged in smpepi ... plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SWP expression level was examined by RNA gel blot analysis and RT-PCR and was found to be ... normal in ... smp2-1

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

ANT overexpression activated ectopic expression of CYCD3;1

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

RT-PCR results indicated that the transcripts of ... SMP1 ... were reduced in smp1epi homozygous plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

full-length SWP cDNA driven by the 35S CaMV promoter was introduced into smpepi mutant plants ... RT-PCR results confirmed that two of these restored lines expressed a wild-type level of fully spliced SWP transcript and more so than the line that exhibited the mutant phenotype

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

transgenic copy of the SMP1 promoter driving the β-glucuronidase (GUS) reporter gene ... After germination, SMP1 mRNA expression was ... not in the SAM

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

transgenic copy of the SMP1 promoter driving the β-glucuronidase (GUS) reporter gene ... SMP1 promoter activity was also found throughout very young leaf primordia (Figure 8J) and as the leaf matured, was turned off in a tip-to-base manner (Figure 8K). This pattern of GUS expression overlapped with the general pattern of cell proliferation and presaged the basipetal wave of cell maturation that would flow from leaf tip to leaf base

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

transgenic copy of the SMP1 promoter driving the β-glucuronidase (GUS) reporter gene ... After germination, SMP1 mRNA expression was found throughout leaf primordia

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SMP1 promoter activity was also found throughout very young leaf primordia

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

CDC2A expression ... was ... unchanged in ... SMP1-overexpressing plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

CDC2A expression also was found to be unchanged in ... SMP1-overexpressing plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

full-length SWP cDNA driven by the 35S CaMV promoter was introduced into smpepi mutant plants. Because of the moderate infertility of these plants, only four independent lines were obtained ... transcript levels of ... SMP2 were also increased in all three lines

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SMP1 mRNA expression was found throughout early globular-staged embryos

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SWP expression level was examined by RNA gel blot analysis and RT-PCR and was found to be undetectable in smpepi plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

CYCD3;1 expressions were examined by RNA gel blot analysis and were found to be unchanged in ... SMP1-overexpressing plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

CDC2A expression also was found to be unchanged in smpepi ... plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

full-length SWP cDNA driven by the 35S CaMV promoter was introduced into smpepi mutant plants. Because of the moderate infertility of these plants, only four independent lines were obtained ... transcript levels of SMP1 ... were also increased in all three lines

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

ANT ... expressions were examined by RNA gel blot analysis and were found to be unchanged in ... SMP1-overexpressing plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SWP expression level was examined by RNA gel blot analysis and RT-PCR and was found to be ... normal ... in smp1-1

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

transgenic copy of the SMP1 promoter driving the β-glucuronidase (GUS) reporter gene ... bent cotyledon stage where SMP1 promoter activity increased in procambial cells

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SWP expression level was examined by RNA gel blot analysis and RT-PCR and was found to be ... normal in SMP1-overexpressing plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

ANT ... expressions were examined by RNA gel blot analysis and were found to be unchanged in smpepi ... plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

CDC2A expression ... was ... unchanged in smpepi ... plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SMP1 mRNA ... expression intensified in the cotyledon primordia of heart-staged embryos

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

RT-PCR results indicated that the transcripts of ... SMP2 were reduced in smp1epi homozygous plants

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

SMP1 expression is associated with regions of cell proliferation in lateral organs

Clay NK, Nelson T - The recessive epigenetic swellmap mutation affects the expression of two step II splicing factors required for the transcription of the cell proliferation gene STRUWWELPETER and for the timing of cell cycle arrest in the Arabidopsis leaf

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  • Gene expression

We also generated transgenic plants expressing ProARF2:GUS in order to monitor ARF2 expression during development. GUS activity was detected in the peripheral zone of cotyledons ... in 3-day-old, light-grown transgenic seedlings

Okushima Y, Mitina I, Quach HL, Theologis A - AUXIN RESPONSE FACTOR 2 (ARF2): a pleiotropic developmental regulator

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  • Gene expression

The results shown in Figure 1(c) indicate that ARF2 expression in wild-type seedlings ... slightly induced by IAA treatment

Okushima Y, Mitina I, Quach HL, Theologis A - AUXIN RESPONSE FACTOR 2 (ARF2): a pleiotropic developmental regulator

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  • Gene expression

We also generated transgenic plants expressing ProARF2:GUS in order to monitor ARF2 expression during development ... little or no GUS expression was detected in cotyledons of etiolated seedlings

Okushima Y, Mitina I, Quach HL, Theologis A - AUXIN RESPONSE FACTOR 2 (ARF2): a pleiotropic developmental regulator

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  • Gene expression

Previous studies by Ulmasov et al. (1999a) have shown that ARF2 is expressed in all major plant organs including roots, rosette and caulin leaves, flowers and siliques. These expression characteristics were also confirmed by us using RT-PCR analysis (data not shown

Okushima Y, Mitina I, Quach HL, Theologis A - AUXIN RESPONSE FACTOR 2 (ARF2): a pleiotropic developmental regulator

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  • Gene expression

AN3 ... expressed at detectable levels in the shoot tip

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

The expression domains of AtGRF4 ... partially overlapped with the AN3 expression domain, mainly near the midvein

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AtGRF5 ... undetectable in mature leaves

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

GUS activities in ... AtGRF9 reporter plants were clearly restricted to the lower half of the leaf primordium ... Consistent with this analysis the RT-PCR analysis showed that AN3, AtGRF5, and AtGRF9 are expressed at stronger levels in the lower half than in the upper half of the primordium

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AN3 expression was undetectable in mature leaves

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AN3 was strongly expressed in the basal region of leaf primordia of 5-day-old plants

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AtGRF9 ... undetectable in mature leaves

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

GUS activities in ... AtGRF5 ... reporter plants ... were clearly restricted to the lower half of the leaf primordium ... Consistent with this analysis the RT-PCR analysis showed that AN3, AtGRF5, and AtGRF9 are expressed at stronger levels in the lower half than in the upper half of the primordium

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

The expression domains of ... AtGRF6 partially overlapped with the AN3 expression domain, mainly near the midvein

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AtGRF9 ... expressed uniformly in the primordium

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AtGRF7 was strongly expressed in cells surrounding the vasculature

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

GUS activities in AN3 ... reporter plants ... were clearly restricted to the lower half of the leaf primordium ... Consistent with this analysis the RT-PCR analysis showed that AN3, AtGRF5, and AtGRF9 are expressed at stronger levels in the lower half than in the upper half of the primordium

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AN3 was ... expressed ... weakly in the shoot apical meristem

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

AtGRF5 ... expressed uniformly in the primordium

Horiguchi G, Kim GT, Tsukaya H - The transcription factor AtGRF5 and the transcription coactivator AN3 regulate cell proliferation in leaf primordia of Arabidopsis thaliana

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  • Gene expression

In spite of the striking similarity of the leaf phenotypes of as and aba1 mutants, ectopic expression of the KNAT1 ... was not found, as tested by RT-PCR amplifications of RNA extracted from the leaves of aba1/aba1 plants (data not shown

Barrero JM, Piqueras P, González-Guzmán M, Serrano R, Rodríguez PL, Ponce MR, Micol JL - A mutational analysis of the ABA1 gene of Arabidopsis thaliana highlights the involvement of ABA in vegetative development

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  • Gene expression

In spite of the striking similarity of the leaf phenotypes of as and aba1 mutants, ectopic expression of ... STM ... was not found, as tested by RT-PCR amplifications of RNA extracted from the leaves of aba1/aba1 plants (data not shown

Barrero JM, Piqueras P, González-Guzmán M, Serrano R, Rodríguez PL, Ponce MR, Micol JL - A mutational analysis of the ABA1 gene of Arabidopsis thaliana highlights the involvement of ABA in vegetative development

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  • Gene expression

In spite of the striking similarity of the leaf phenotypes of as and aba1 mutants, ectopic expression of the ... KNAT2 ... was not found, as tested by RT-PCR amplifications of RNA extracted from the leaves of aba1/aba1 plants (data not shown

Barrero JM, Piqueras P, González-Guzmán M, Serrano R, Rodríguez PL, Ponce MR, Micol JL - A mutational analysis of the ABA1 gene of Arabidopsis thaliana highlights the involvement of ABA in vegetative development

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  • Gene expression

Our examination of ANT expression by real time RT-PCR produced results that are in agreement with previous reports of ANT expression in ... seedlings

Nole-Wilson S, Tranby TL, Krizek BA - AINTEGUMENTA-like (AIL) genes are expressed in young tissues and may specify meristematic or division-competent states

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  • Gene expression

Our examination of ANT expression by real time RT-PCR ... we also observed low expression in mature rosette leaves, which was not previously detected by RNA gel blot analysis (Klucher et al., 1996

Nole-Wilson S, Tranby TL, Krizek BA - AINTEGUMENTA-like (AIL) genes are expressed in young tissues and may specify meristematic or division-competent states

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  • Gene expression

ANT is expressed at higher levels in most tissues compared to other members of the AIL group

Nole-Wilson S, Tranby TL, Krizek BA - AINTEGUMENTA-like (AIL) genes are expressed in young tissues and may specify meristematic or division-competent states

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  • Gene expression

the gene encoding ribosomal protein L10A (At2g27530) ... were induced in the ATAF2 KO line compared to the wild type in the non-wounded case only

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

PDF1.1 ... were induced in the KO, in both non-wounded and wounded (30 min) conditions

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

Arabidopsis plants transformed with the ATAF2 promoter fused to the GUS reporter gene (PATAF2:GUS) confirmed the sqRT-PCR results, indicating that ATAF2 was expressed at varying levels in all plant tissues. ATAF2 was highly expressed in ... leaves

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

The expression pattern in cotyledons and leaves was not homogeneous, but GUS staining was present only in particular cell types (Figure 3b). Microscopic examination indicated that ATAF2 was expressed mainly in cells surrounding the sub-stomatal cavity

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

When plants were placed into a high osmotic medium containing mannitol to induce water loss, ATAF2 was induced 2.6-fold

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

Wound induction of ATAF2 was not blocked by mutations affecting ABA biosynthesis (aba1; Koornneef et al., 1982)

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

GST1 (At1g02930) ... were induced in the ATAF2 KO line compared to the wild type in the non-wounded case only

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

ATAF2 ... In mature leaves, strong expression was observed in the hydathodes

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

To confirm the GUS staining results, we measured the expression level of ATAF2 at the wound site (local), in the non-wounded tissue next to the wound site (adjacent), in non-wounded leaves of a wounded plant (systemic) and in leaves of a control non-wounded plant (NWP) using sqRT-PCR (Figure 4). ATAF2 was induced after 30 min in the local tissue (approximately 13× over leaves of non-wounded plants), to a lower extent in the adjacent tissue (approximately 4×) and less in systemic leaves (approximately 2×). This high level of wounding induction is transient, and 5 h after wounding, induction levels were markedly reduced (6×, 2× and 2× over leaves of non-wounded plants, respectively

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

Wound induction of ATAF2 was not blocked by mutations affecting ... ABA response pathways ... abi2

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

PATAF2:GUS transgenic Arabidopsis plants showed a strong induction of GUS activity immediately around the damaged area of a wounded leaf

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

ATAF2 expression was induced in leaves by the application of ... SA (6.5X)

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

PR1 (At2g14610) ... were induced in the ATAF2 KO line compared to the wild type in the non-wounded case only

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

Arabidopsis plants transformed with the ATAF2 promoter fused to the GUS reporter gene (PATAF2:GUS) confirmed the sqRT-PCR results, indicating that ATAF2 was expressed at varying levels in all plant tissues. ATAF2 was highly expressed in cotyledons

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

However, plants kept in the dark for 5 h showed increased ATAF2 expression (2.1-fold; Figure 5a), indicating that light negatively influences ATAF2 expression

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

ATAF2 expression ... in leaves ... ABA treatment did not have any effect

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

When the response of ATAF2 to sugar was tested by transferring plants to liquid MS medium in the presence or absence of 3% sucrose 4 days prior to hormone or stress treatments, ATAF2 expression was higher in all treatments in the absence of sugars. This was especially evident in the response to dark, where ATAF2 induction was 2.6 times higher in the absence than in the presence of sucrose

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

ATAF2 expression was induced in leaves by the application of MeJA (7.4X)

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

ATAF2 ... in older senescing cotyledons, expression is clearly restricted to stomatal guard cells

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

the H-protein promoter binding factor-2a (At3g47500) were induced in the ATAF2 KO line compared to the wild type in the non-wounded case only

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

Expression analysis using semi-quantitative real-time reverse transcription polymerase chain reaction (sqRT-PCR) indicated that ATAF2 was expressed in roots, leaves, seedlings and mature flowers (Figure 2). The expression was highest in roots and leaves, and lowest in flower buds and bolt stems

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

a gene encoding a 33 kDa secretory protein-related protein (At5g48540) were induced in the KO, in both non-wounded and wounded (30 min) conditions

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

PDF1.2 ... were induced in the KO, in both non-wounded and wounded (30 min) conditions

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

ATAF2 ... In mature leaves ... a low background level of expression was occasionally observed in the whole leaf and/or in the vascular tissue

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

Wound induction of ATAF2 was not blocked by mutations affecting ... ABA response pathways ... abi1

Delessert C, Kazan K, Wilson IW, Van Der Straeten D, Manners J, Dennis ES, Dolferus R - The transcription factor ATAF2 represses the expression of pathogenesis-related genes in Arabidopsis

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  • Gene expression

We then compared expression of AP1, FUL, and SEP3 in mature rosette leaves of wild-type plants or those overexpressing FT (Figure 2B) or TFT (see Supplemental Figure 3B online). Plants were grown for 30 d under conditions that enhance curling (conditions A2 and A4 in Table 1, respectively). All three genes were highly misexpressed in the rosette leaves of both transgenic lines. Fold induction ranged between 5.4 (FUL) and 21 (SEP3) for Pro35S:FT plants grown under long days

Teper-Bamnolker P, Samach A - The flowering integrator FT regulates SEPALLATA3 and FRUITFULL accumulation in Arabidopsis leaves

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  • Gene expression

In 30-d-old rosette leaves, we detected a consistent 10-fold decrease in the expression of SEP3 and FUL in ft-2 mutants

Teper-Bamnolker P, Samach A - The flowering integrator FT regulates SEPALLATA3 and FRUITFULL accumulation in Arabidopsis leaves

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  • Gene expression

We therefore asked whether FD is required for FT-dependent accumulation of SEP3 and FUL in mature rosette leaves. Indeed, the fd-1 mutation had an effect similar to that of ft-2 in reducing the expression of these genes in mature rosette leaves (Figure 2C

Teper-Bamnolker P, Samach A - The flowering integrator FT regulates SEPALLATA3 and FRUITFULL accumulation in Arabidopsis leaves

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  • Gene expression

We then compared expression of AP1, FUL, and SEP3 in mature rosette leaves of wild-type plants or those overexpressing FT (Figure 2B) or TFT (see Supplemental Figure 3B online). Plants were grown for 30 d under conditions that enhance curling (conditions A2 and A4 in Table 1, respectively). All three genes were highly misexpressed in the rosette leaves of both transgenic lines. Fold induction ranged between 5.4 (FUL) and 21 (SEP3) for Pro35S:FT plants grown under long days

Teper-Bamnolker P, Samach A - The flowering integrator FT regulates SEPALLATA3 and FRUITFULL accumulation in Arabidopsis leaves

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  • Gene expression

In 30-d-old rosette leaves, we detected a consistent 10-fold decrease in the expression of SEP3 and FUL in ft-2 mutants

Teper-Bamnolker P, Samach A - The flowering integrator FT regulates SEPALLATA3 and FRUITFULL accumulation in Arabidopsis leaves

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  • Gene expression

We then compared expression of AP1, FUL, and SEP3 in mature rosette leaves of wild-type plants or those overexpressing FT (Figure 2B) or TFT (see Supplemental Figure 3B online). Plants were grown for 30 d under conditions that enhance curling (conditions A2 and A4 in Table 1, respectively). All three genes were highly misexpressed in the rosette leaves of both transgenic lines. Fold induction ranged between 5.4 (FUL) and 21 (SEP3) for Pro35S:FT plants grown under long days

Teper-Bamnolker P, Samach A - The flowering integrator FT regulates SEPALLATA3 and FRUITFULL accumulation in Arabidopsis leaves

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  • Gene expression

We therefore asked whether FD is required for FT-dependent accumulation of SEP3 and FUL in mature rosette leaves. Indeed, the fd-1 mutation had an effect similar to that of ft-2 in reducing the expression of these genes in mature rosette leaves (Figure 2C

Teper-Bamnolker P, Samach A - The flowering integrator FT regulates SEPALLATA3 and FRUITFULL accumulation in Arabidopsis leaves

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  • Gene expression

Elevated GTE6 expression in the 35S::GTE6 plants resulted in more AS1 transcripts

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The expression of other genes involved in leaf development, such as ... DRL ... was also investigated. However, no change in the transcript levels of these genes was observed in the GTE6 mutants, suggesting that GTE6 is not regulating the expression of these genes

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

In the basal rosette leaves of 21-d-old wild-type plants, GTE6 transcripts are more abundant in leaves 6 and 7, which possess narrow elliptical laminae, than in leaves 1-4, which have round laminae (Fig. 1C,D), suggesting a possible correlation between GTE6 expression and the formation of elliptical leaf laminae in mature leaves

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The expression of other genes involved in leaf development, such as ... ROT3 ... was also investigated. However, no change in the transcript levels of these genes was observed in the GTE6 mutants, suggesting that GTE6 is not regulating the expression of these genes

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The T-DNA insertions resulted in fewer GTE6 transcripts in leaf 7 (Fig. 2B), suggesting misregulation of GTE6 expression. The transcript abundance of GTE6 in leaf 7 of the insertion mutants was similar to leaf 4 of the wild-type and the insertion mutant plants, suggesting that the T-DNA insertions have disrupted the activation of GTE6 expression in the mature leaves ... Thus, elevated expression of GTE6 in leaves 6 and 7 of wild-type plants is important for the development of the elliptical leaf lamina

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The expression of other genes involved in leaf development, such as AN ... was also investigated. However, no change in the transcript levels of these genes was observed in the GTE6 mutants, suggesting that GTE6 is not regulating the expression of these genes

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

decreased expression of GTE6 in the RNAi plants resulted in fewer AS1 transcripts

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The expression of AS2 was not altered in the ... GTE6 RNAi plants

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The expression of AS2 was not altered in the GTE6 overexpressing mutants

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The expression of other genes involved in leaf development, such as ... TPC2 ... was also investigated. However, no change in the transcript levels of these genes was observed in the GTE6 mutants, suggesting that GTE6 is not regulating the expression of these genes

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

The expression of other genes involved in leaf development, such as ... CLF ... was also investigated. However, no change in the transcript levels of these genes was observed in the GTE6 mutants, suggesting that GTE6 is not regulating the expression of these genes

Chua YL, Channelière S, Mott E, Gray JC - The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES1

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  • Gene expression

In wild-type plants, PIAA3::GUS was expressed in ... cotyledons

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

ARF19 ... induced in senescing leaves (Lin and Wu, 2004) and this was confirmed by RNA gel blot analysis (Fig. 8C

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

Ectopic PIAA3::GUS ... stain was also observed in the leaves of arf1-4 seedlings

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

IAA5 mRNA levels were increased in auxin-treated arf1-4 seedlings

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

RNA levels of ... IAA5 ... in arf2 flowers (Fig. 6S) and seedlings (data not shown) were similar to those of Columbia plants

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

IAA2 ... mRNA levels were increased in auxin-treated arf1-4 seedlings

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

In wild-type plants ... PIAA7::GUS was expressed in ... shoot meristems

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

PARF1::GUS ... X-Gluc staining appeared throughout 8-day-old seedlings and in rosette leaves (data not shown

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

Microarray studies also indicated that ARF2 mRNA increased during senescence (Lin and Wu, 2004). We examined PARF2::GUS::ARF2 plants (Li et al., 2004) to determine the levels of ARF2 protein in senescing leaves. In mature, fresh fully expanded rosette leaves or in those placed in the dark for 2 days, little GUS staining was observed (Fig. 4A,B). After 4 and 6 days in darkness, GUS staining was evident (Fig. 4C,D). GUS activity was highest in vasculature, but was also present in ground tissue. Together these data indicate that ARF2 accumulated during leaf senescence

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

RNA gel blot hybridizations confirmed that endogenous ... IAA7 mRNA levels were increased in arf1-4 flowers and seedlings, and in arf1-4 arf2-8 flowers (Fig. 6S

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

Ectopic ... PIAA7::GUS stain was also observed in the leaves of arf1-4 seedlings

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

ARF1 mRNA decreased as senescence progressed in ... Columbia ... plants

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

ARF1 mRNA decreased as senescence progressed in ... arf2-8 plants

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

In wild-type plants, PIAA3::GUS was expressed in ... expanding leaves

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

PARF2::GUS ... X-Gluc staining appeared throughout 8-day-old seedlings and in rosette leaves (data not shown

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

RNA levels of ... IAA7 ... in arf2 flowers (Fig. 6S) and seedlings (data not shown) were similar to those of Columbia plants

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

NPH4/ARF7 mRNA levels in arf2-8 leaves were approximately twofold higher than in Columbia leaves at the start of the experiment

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

RNA gel blot hybridizations confirmed that endogenous IAA3 ... mRNA levels were increased in arf1-4 flowers and seedlings, and in arf1-4 arf2-8 flowers (Fig. 6S

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

RNA levels of IAA2 ... in arf2 flowers (Fig. 6S) and seedlings (data not shown) were similar to those of Columbia plants

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

ARF1 ... present in roots, rosette leaves, cauline leaves and flowers (Ulmasov et al., 1999b

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

Younger, expanding leaves of PARF2::GUS::ARF2 plants also stained in the vasculature and ground tissue, both in freshly detached leaves and in those placed in the dark for 4 days

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

ARF2 mRNA ... present in roots, rosette leaves, cauline leaves and flowers (Ulmasov et al., 1999b

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

RNA levels of ... IAA3 ... in arf2 flowers (Fig. 6S) and seedlings (data not shown) were similar to those of Columbia plants

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

NPH4/ARF7 ... induced in senescing leaves (Lin and Wu, 2004) and this was confirmed by RNA gel blot analysis (Fig. 8C

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

Younger, expanding leaves of PARF2::GUS::ARF2 plants also stained in the vasculature ... both in freshly detached leaves and in those placed in the dark for 4 days

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

ARF1 mRNA levels were quantified in three independent blots and were found to be slightly higher (2.7±0.9-fold) in freshly detached arf2 leaves when compared with Columbia leaves

Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW - AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana

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  • Gene expression

PHB ... in se plants it is expressed broadly, extending into the abaxial ... domain

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

Zip III gene CORONA (CNA)17 ... shows elevated expression in se-3 plants

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

Misexpression of PHB in se mutants was evident at the eight-cell stage of embryogenesis

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

BP ... are not ... misregulated in se mutants

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

se-3 plants with hypertrophic apices express PHB transcript strongly ... lateral organ primordia

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

Levels of miR165 ... primary transcripts were elevated in se mutants compared to wild type

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

Levels of ... miR166 primary transcripts were elevated in se mutants compared to wild type

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

KNAT2 are not ... misregulated in se mutants

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

PHB expression domain is expanded in se mutant SAMs

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

All three se alleles show increased expression of ... PHB

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

STM ... are not ... misregulated in se mutants

Grigg SP, Canales C, Hay A, Tsiantis M - SERRATE coordinates shoot meristem function and leaf axial patterning in Arabidopsis

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  • Gene expression

in arf2 mutants ... we detected ... CYCD3;1 ... expression in mature leaves of mutant but not wild-type plants, indicating that loss of ARF2 function prolongs expression of these genes

Schruff MC, Spielman M, Tiwari S, Adams S, Fenby N, Scott RJ - The AUXIN RESPONSE FACTOR 2 gene of Arabidopsis links auxin signalling, cell division, and the size of seeds and other organs

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  • Gene expression

in arf2 mutants ... ARGOS was expressed in mature leaf and stem at similar levels in mutants and wild type

Schruff MC, Spielman M, Tiwari S, Adams S, Fenby N, Scott RJ - The AUXIN RESPONSE FACTOR 2 gene of Arabidopsis links auxin signalling, cell division, and the size of seeds and other organs

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  • Gene expression

RNA gel blot analysis has shown that ARF2 is expressed in roots, leaves, flowers and siliques (Ulmasov et al., 1999b

Schruff MC, Spielman M, Tiwari S, Adams S, Fenby N, Scott RJ - The AUXIN RESPONSE FACTOR 2 gene of Arabidopsis links auxin signalling, cell division, and the size of seeds and other organs

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  • Gene expression

in arf2 mutants ... we detected both ANT ... expression in mature leaves of mutant but not wild-type plants

Schruff MC, Spielman M, Tiwari S, Adams S, Fenby N, Scott RJ - The AUXIN RESPONSE FACTOR 2 gene of Arabidopsis links auxin signalling, cell division, and the size of seeds and other organs

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  • Gene expression

We found that hyp7 has similar GL2::GUS expression patterns in leaf trichomes

Sugimoto-Shirasu K, Roberts GR, Stacey NJ, McCann MC, Maxwell A, Roberts K - RHL1 is an essential component of the plant DNA topoisomerase VI complex and is required for ploidy-dependent cell growth

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  • Gene expression

all topo VI genes, AtSPO11-3/RHL2, AtTOP6B/HYP6/RHL3, and RHL1, are expressed in proliferating and endoreduplicating cells

Sugimoto-Shirasu K, Roberts GR, Stacey NJ, McCann MC, Maxwell A, Roberts K - RHL1 is an essential component of the plant DNA topoisomerase VI complex and is required for ploidy-dependent cell growth

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  • Gene expression

we found that the topo II gene, AtTOP2, is preferentially expressed in proliferating cells

Sugimoto-Shirasu K, Roberts GR, Stacey NJ, McCann MC, Maxwell A, Roberts K - RHL1 is an essential component of the plant DNA topoisomerase VI complex and is required for ploidy-dependent cell growth

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  • Gene expression

all topo VI genes, AtSPO11-3/RHL2, AtTOP6B/HYP6/RHL3, and RHL1, are expressed in proliferating and endoreduplicating cells

Sugimoto-Shirasu K, Roberts GR, Stacey NJ, McCann MC, Maxwell A, Roberts K - RHL1 is an essential component of the plant DNA topoisomerase VI complex and is required for ploidy-dependent cell growth

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  • Gene expression

in vivo visualization revealed that the AtSPO11–3/RHL2 protein fused to GFP is present in ... shoot apical meristem

Sugimoto-Shirasu K, Roberts GR, Stacey NJ, McCann MC, Maxwell A, Roberts K - RHL1 is an essential component of the plant DNA topoisomerase VI complex and is required for ploidy-dependent cell growth

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  • Gene expression

all topo VI genes, AtSPO11-3/RHL2, AtTOP6B/HYP6/RHL3, and RHL1, are expressed in proliferating and endoreduplicating cells

Sugimoto-Shirasu K, Roberts GR, Stacey NJ, McCann MC, Maxwell A, Roberts K - RHL1 is an essential component of the plant DNA topoisomerase VI complex and is required for ploidy-dependent cell growth

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  • Gene expression

in vivo visualization revealed that the AtSPO11–3/RHL2 protein fused to GFP is present in ... young leaf petiole cells

Sugimoto-Shirasu K, Roberts GR, Stacey NJ, McCann MC, Maxwell A, Roberts K - RHL1 is an essential component of the plant DNA topoisomerase VI complex and is required for ploidy-dependent cell growth

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... we detected the viral protein by immunofluorescence in cross sections of leaves. As shown in Figure 1F, RepA accumulates in all leaf cell layers after Dex treatment

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... PCNA ... expression ... increased in the RepAwt-expressing plants

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... we determined by real-time reverse transcription (RT)-PCR the mRNA levels of ... after induction of the viral protein ... E2Fc ... was up-regulated in these plants

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... CDC6 ... expression ... increased in the RepAwt-expressing plants

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... expressing a translational fusion of the β-glucuronidase (GUS) reporter gene with the destruction box of cyclin B1;1, a useful G2/M marker ... after induction by Dex, we observed a stronger GUS expression in the leaf primordia

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... CDT1 ... expression ... increased in the RepAwt-expressing plants

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... we determined by real-time reverse transcription (RT)-PCR the mRNA levels of ... after induction of the viral protein ... E2Fa ... was up-regulated in these plants

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... expressing a translational fusion of the β-glucuronidase (GUS) reporter gene with the destruction box of cyclin B1;1, a useful G2/M marker ... after induction by Dex, we observed a stronger GUS expression ... in the proximal zone of young leaves

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

dexamethasone (Dex)-inducible system ... Arabidopsis transgenic plants that can express geminivirus RepA protein (RepAwt) in an inducible manner ... members of the ORC (origin recognition complex ... expression ... increased in the RepAwt-expressing plants

Desvoyes B, Ramirez-Parra E, Xie Q, Chua NH, Gutierrez C - Cell type-specific role of the retinoblastoma/E2F pathway during Arabidopsis leaf development

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  • Gene expression

BAM1, BAM2 and BAM3 were broadly expressed throughout the different tissues and developmental stages examined

DeYoung BJ, Bickle KL, Schrage KJ, Muskett P, Patel K, Clark SE - The CLAVATA1-related BAM1, BAM2 and BAM3 receptor kinase-like proteins are required for meristem function in Arabidopsis

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  • Gene expression

A robust signal for both BAM1 and BAM2 genes could be detected on the flanks of the meristem (Figure 5)

DeYoung BJ, Bickle KL, Schrage KJ, Muskett P, Patel K, Clark SE - The CLAVATA1-related BAM1, BAM2 and BAM3 receptor kinase-like proteins are required for meristem function in Arabidopsis

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  • Gene expression

BAM1, BAM2 and BAM3 were broadly expressed throughout the different tissues and developmental stages examined

DeYoung BJ, Bickle KL, Schrage KJ, Muskett P, Patel K, Clark SE - The CLAVATA1-related BAM1, BAM2 and BAM3 receptor kinase-like proteins are required for meristem function in Arabidopsis

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  • Gene expression

BAM1, BAM2 and BAM3 were broadly expressed throughout the different tissues and developmental stages examined

DeYoung BJ, Bickle KL, Schrage KJ, Muskett P, Patel K, Clark SE - The CLAVATA1-related BAM1, BAM2 and BAM3 receptor kinase-like proteins are required for meristem function in Arabidopsis

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  • Gene expression

A robust signal for both BAM1 and BAM2 genes could be detected on the flanks of the meristem (Figure 5

DeYoung BJ, Bickle KL, Schrage KJ, Muskett P, Patel K, Clark SE - The CLAVATA1-related BAM1, BAM2 and BAM3 receptor kinase-like proteins are required for meristem function in Arabidopsis

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  • Gene expression

Genes expressed to higher levels in the cyp98A3 mutant were clearly over-represented in the functional group related to jasmonate signaling (Fig. 8B). Indeed, many genes involved in the biosynthesis of jasmonate are significantly higher expressed in the mutant compared to wild type (Ws); These include LOX2 (see above), LOX1, allene oxide synthase (CYP74A, At5g42650), and allene oxide cyclase 4 (At1g13280). In addition, genes related to the abscisic acid cascade are over-represented in the group of genes expressed to higher levels in cyp98A3 insertion mutants (Fig. 8B). These include the gene responsive to dehydration 22 (RD22I, At5g25610), which is strongly induced by abscisic acid and drought (Yamaguchi-Shinozaki and Shinozaki, 1993), and the Arg decarboxylase 2 (ADC2, At4g34710) gene, which is strongly activated by abscisic acid, but also by methyl jasmonate and mechanical wounding, and is involved in polyamine biosynthesis (Perez-Amador et al., 2002). Also expressed to higher levels in cyp98A3 insertion mutants were two homeodomain Leu-zipper transcription factors (ATHB5, At5g65310; and ATHB7, At2g46680) involved in abscisic acid-mediated signaling pathways related to drought and osmotic stress (Söderman et al., 1996) and seed germination (Johannesson et al., 2003), respectively

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Indeed, several genes encoding proteins involved in the light-harvesting complex (e.g. chlorophyll a/b-binding proteins At2g34430, At3g08940, and At3g47470), in photosynthetic electron transport (e.g. the putative ferredoxin At1g10960 and proton gradient regulation 5, At2g05620; Munekage et al., 2002), and in the Calvin cycle (e.g. Rubisco At5g38410 and the putative Rib-5-P isomerase At3g04790) are strongly down-regulated in the mutant compared to the wild type (Supplemental Table I

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

While transcript levels of genes encoding Phe ammonia lyase (PAL1; At2g37040) and HCT (At5g48930; Fig. 7A) were comparable in cyp98A3 mutants and wild type at all time points, an increase in C4H (CYP73A5; At2g30490) expression compared to wild type was observed at the 2-, 4-, and 8-h time points in cyp98A3 insertion mutants (Fig. 7A

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Genes expressed to higher levels in the cyp98A3 mutant were clearly over-represented in the functional group related to jasmonate signaling (Fig. 8B). Indeed, many genes involved in the biosynthesis of jasmonate are significantly higher expressed in the mutant compared to wild type (Ws); These include LOX2 (see above), LOX1, allene oxide synthase (CYP74A, At5g42650), and allene oxide cyclase 4 (At1g13280). In addition, genes related to the abscisic acid cascade are over-represented in the group of genes expressed to higher levels in cyp98A3 insertion mutants (Fig. 8B). These include the gene responsive to dehydration 22 (RD22I, At5g25610), which is strongly induced by abscisic acid and drought (Yamaguchi-Shinozaki and Shinozaki, 1993), and the Arg decarboxylase 2 (ADC2, At4g34710) gene, which is strongly activated by abscisic acid, but also by methyl jasmonate and mechanical wounding, and is involved in polyamine biosynthesis (Perez-Amador et al., 2002). Also expressed to higher levels in cyp98A3 insertion mutants were two homeodomain Leu-zipper transcription factors (ATHB5, At5g65310; and ATHB7, At2g46680) involved in abscisic acid-mediated signaling pathways related to drought and osmotic stress (Söderman et al., 1996) and seed germination (Johannesson et al., 2003), respectively

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Genes expressed to higher levels in the cyp98A3 mutant were clearly over-represented in the functional group related to jasmonate signaling (Fig. 8B). Indeed, many genes involved in the biosynthesis of jasmonate are significantly higher expressed in the mutant compared to wild type (Ws); These include LOX2 (see above), LOX1, allene oxide synthase (CYP74A, At5g42650), and allene oxide cyclase 4 (At1g13280). In addition, genes related to the abscisic acid cascade are over-represented in the group of genes expressed to higher levels in cyp98A3 insertion mutants (Fig. 8B). These include the gene responsive to dehydration 22 (RD22I, At5g25610), which is strongly induced by abscisic acid and drought (Yamaguchi-Shinozaki and Shinozaki, 1993), and the Arg decarboxylase 2 (ADC2, At4g34710) gene, which is strongly activated by abscisic acid, but also by methyl jasmonate and mechanical wounding, and is involved in polyamine biosynthesis (Perez-Amador et al., 2002). Also expressed to higher levels in cyp98A3 insertion mutants were two homeodomain Leu-zipper transcription factors (ATHB5, At5g65310; and ATHB7, At2g46680) involved in abscisic acid-mediated signaling pathways related to drought and osmotic stress (Söderman et al., 1996) and seed germination (Johannesson et al., 2003), respectively

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Indeed, several genes encoding proteins involved in the light-harvesting complex (e.g. chlorophyll a/b-binding proteins At2g34430, At3g08940, and At3g47470), in photosynthetic electron transport (e.g. the putative ferredoxin At1g10960 and proton gradient regulation 5, At2g05620; Munekage et al., 2002), and in the Calvin cycle (e.g. Rubisco At5g38410 and the putative Rib-5-P isomerase At3g04790) are strongly down-regulated in the mutant compared to the wild type (Supplemental Table I

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Indeed, several genes encoding proteins involved in the light-harvesting complex (e.g. chlorophyll a/b-binding proteins At2g34430, At3g08940, and At3g47470), in photosynthetic electron transport (e.g. the putative ferredoxin At1g10960 and proton gradient regulation 5, At2g05620; Munekage et al., 2002), and in the Calvin cycle (e.g. Rubisco At5g38410 and the putative Rib-5-P isomerase At3g04790) are strongly down-regulated in the mutant compared to the wild type (Supplemental Table I

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Six of the 28 expansin family members represented on the array used are differentially expressed, significantly more than expected by chance. However, some expansin isoforms (EXP1, At1g69530; EXP10, At1g26770; and EXPR, At4g17030) are expressed to higher levels in cyp98A3 insertion mutants, whereas others (EXP8, At2g40610; EXP3, At2g37640; and EXP11, At1g20190) are down-regulated compared to levels found in wild-type plants

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Indeed, several genes encoding proteins involved in the light-harvesting complex (e.g. chlorophyll a/b-binding proteins At2g34430, At3g08940, and At3g47470), in photosynthetic electron transport (e.g. the putative ferredoxin At1g10960 and proton gradient regulation 5, At2g05620; Munekage et al., 2002), and in the Calvin cycle (e.g. Rubisco At5g38410 and the putative Rib-5-P isomerase At3g04790) are strongly down-regulated in the mutant compared to the wild type (Supplemental Table I

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Six of the 28 expansin family members represented on the array used are differentially expressed, significantly more than expected by chance. However, some expansin isoforms (EXP1, At1g69530; EXP10, At1g26770; and EXPR, At4g17030) are expressed to higher levels in cyp98A3 insertion mutants, whereas others (EXP8, At2g40610; EXP3, At2g37640; and EXP11, At1g20190) are down-regulated compared to levels found in wild-type plants

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Indeed, several genes encoding proteins involved in the light-harvesting complex (e.g. chlorophyll a/b-binding proteins At2g34430, At3g08940, and At3g47470), in photosynthetic electron transport (e.g. the putative ferredoxin At1g10960 and proton gradient regulation 5, At2g05620; Munekage et al., 2002), and in the Calvin cycle (e.g. Rubisco At5g38410 and the putative Rib-5-P isomerase At3g04790) are strongly down-regulated in the mutant compared to the wild type (Supplemental Table I

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Six of the 28 expansin family members represented on the array used are differentially expressed, significantly more than expected by chance. However, some expansin isoforms (EXP1, At1g69530; EXP10, At1g26770; and EXPR, At4g17030) are expressed to higher levels in cyp98A3 insertion mutants, whereas others (EXP8, At2g40610; EXP3, At2g37640; and EXP11, At1g20190) are down-regulated compared to levels found in wild-type plants

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

The total inactivation of the CYP98A3 gene in homozygous plants was confirmed by RNA-blot hybridization (Fig. 2C ) and quantitative reverse-transcription (RT)-PCR (see below

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Six of the 28 expansin family members represented on the array used are differentially expressed, significantly more than expected by chance. However, some expansin isoforms (EXP1, At1g69530; EXP10, At1g26770; and EXPR, At4g17030) are expressed to higher levels in cyp98A3 insertion mutants, whereas others (EXP8, At2g40610; EXP3, At2g37640; and EXP11, At1g20190) are down-regulated compared to levels found in wild-type plants

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Genes expressed to higher levels in the cyp98A3 mutant were clearly over-represented in the functional group related to jasmonate signaling (Fig. 8B). Indeed, many genes involved in the biosynthesis of jasmonate are significantly higher expressed in the mutant compared to wild type (Ws); These include LOX2 (see above), LOX1, allene oxide synthase (CYP74A, At5g42650), and allene oxide cyclase 4 (At1g13280). In addition, genes related to the abscisic acid cascade are over-represented in the group of genes expressed to higher levels in cyp98A3 insertion mutants (Fig. 8B). These include the gene responsive to dehydration 22 (RD22I, At5g25610), which is strongly induced by abscisic acid and drought (Yamaguchi-Shinozaki and Shinozaki, 1993), and the Arg decarboxylase 2 (ADC2, At4g34710) gene, which is strongly activated by abscisic acid, but also by methyl jasmonate and mechanical wounding, and is involved in polyamine biosynthesis (Perez-Amador et al., 2002). Also expressed to higher levels in cyp98A3 insertion mutants were two homeodomain Leu-zipper transcription factors (ATHB5, At5g65310; and ATHB7, At2g46680) involved in abscisic acid-mediated signaling pathways related to drought and osmotic stress (Söderman et al., 1996) and seed germination (Johannesson et al., 2003), respectively

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Six of the 28 expansin family members represented on the array used are differentially expressed, significantly more than expected by chance. However, some expansin isoforms (EXP1, At1g69530; EXP10, At1g26770; and EXPR, At4g17030) are expressed to higher levels in cyp98A3 insertion mutants, whereas others (EXP8, At2g40610; EXP3, At2g37640; and EXP11, At1g20190) are down-regulated compared to levels found in wild-type plants

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

While transcript levels of genes encoding Phe ammonia lyase (PAL1; At2g37040) and HCT (At5g48930; Fig. 7A) were comparable in cyp98A3 mutants and wild type at all time points, an increase in C4H (CYP73A5; At2g30490) expression compared to wild type was observed at the 2-, 4-, and 8-h time points in cyp98A3 insertion mutants (Fig. 7A

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Indeed, several genes encoding proteins involved in the light-harvesting complex (e.g. chlorophyll a/b-binding proteins At2g34430, At3g08940, and At3g47470), in photosynthetic electron transport (e.g. the putative ferredoxin At1g10960 and proton gradient regulation 5, At2g05620; Munekage et al., 2002), and in the Calvin cycle (e.g. Rubisco At5g38410 and the putative Rib-5-P isomerase At3g04790) are strongly down-regulated in the mutant compared to the wild type (Supplemental Table I

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

While transcript levels of genes encoding Phe ammonia lyase (PAL1; At2g37040) and HCT (At5g48930; Fig. 7A) were comparable in cyp98A3 mutants and wild type at all time points, an increase in C4H (CYP73A5; At2g30490) expression compared to wild type was observed at the 2-, 4-, and 8-h time points in cyp98A3 insertion mutants (Fig. 7A

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Six of the 28 expansin family members represented on the array used are differentially expressed, significantly more than expected by chance. However, some expansin isoforms (EXP1, At1g69530; EXP10, At1g26770; and EXPR, At4g17030) are expressed to higher levels in cyp98A3 insertion mutants, whereas others (EXP8, At2g40610; EXP3, At2g37640; and EXP11, At1g20190) are down-regulated compared to levels found in wild-type plants

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Indeed, several genes encoding proteins involved in the light-harvesting complex (e.g. chlorophyll a/b-binding proteins At2g34430, At3g08940, and At3g47470), in photosynthetic electron transport (e.g. the putative ferredoxin At1g10960 and proton gradient regulation 5, At2g05620; Munekage et al., 2002), and in the Calvin cycle (e.g. Rubisco At5g38410 and the putative Rib-5-P isomerase At3g04790) are strongly down-regulated in the mutant compared to the wild type (Supplemental Table I

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Genes expressed to higher levels in the cyp98A3 mutant were clearly over-represented in the functional group related to jasmonate signaling (Fig. 8B). Indeed, many genes involved in the biosynthesis of jasmonate are significantly higher expressed in the mutant compared to wild type (Ws); These include LOX2 (see above), LOX1, allene oxide synthase (CYP74A, At5g42650), and allene oxide cyclase 4 (At1g13280). In addition, genes related to the abscisic acid cascade are over-represented in the group of genes expressed to higher levels in cyp98A3 insertion mutants (Fig. 8B). These include the gene responsive to dehydration 22 (RD22I, At5g25610), which is strongly induced by abscisic acid and drought (Yamaguchi-Shinozaki and Shinozaki, 1993), and the Arg decarboxylase 2 (ADC2, At4g34710) gene, which is strongly activated by abscisic acid, but also by methyl jasmonate and mechanical wounding, and is involved in polyamine biosynthesis (Perez-Amador et al., 2002). Also expressed to higher levels in cyp98A3 insertion mutants were two homeodomain Leu-zipper transcription factors (ATHB5, At5g65310; and ATHB7, At2g46680) involved in abscisic acid-mediated signaling pathways related to drought and osmotic stress (Söderman et al., 1996) and seed germination (Johannesson et al., 2003), respectively

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Genes expressed to higher levels in the cyp98A3 mutant were clearly over-represented in the functional group related to jasmonate signaling (Fig. 8B). Indeed, many genes involved in the biosynthesis of jasmonate are significantly higher expressed in the mutant compared to wild type (Ws); These include LOX2 (see above), LOX1, allene oxide synthase (CYP74A, At5g42650), and allene oxide cyclase 4 (At1g13280). In addition, genes related to the abscisic acid cascade are over-represented in the group of genes expressed to higher levels in cyp98A3 insertion mutants (Fig. 8B). These include the gene responsive to dehydration 22 (RD22I, At5g25610), which is strongly induced by abscisic acid and drought (Yamaguchi-Shinozaki and Shinozaki, 1993), and the Arg decarboxylase 2 (ADC2, At4g34710) gene, which is strongly activated by abscisic acid, but also by methyl jasmonate and mechanical wounding, and is involved in polyamine biosynthesis (Perez-Amador et al., 2002). Also expressed to higher levels in cyp98A3 insertion mutants were two homeodomain Leu-zipper transcription factors (ATHB5, At5g65310; and ATHB7, At2g46680) involved in abscisic acid-mediated signaling pathways related to drought and osmotic stress (Söderman et al., 1996) and seed germination (Johannesson et al., 2003), respectively

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

In contrast, genes expressed to higher levels in cyp98A3 insertion mutants compared to wild type were over-represented in functional categories covering carbohydrate metabolism and include genes encoding enzymes in glycolysis (e.g. the glyceraldehyde 3-P dehydrogenase, At3g04120), the tricarboxylic acid cycle (e.g. the phosphoenolpyruvate carboxylase, At3g14940), and other anaerobic metabolisms (alcohol dehydrogenase, At1g77120). Also, functional categories related to defense responses were over-represented (Fig. 8A). Among these were genes known to be transcriptionally induced by insect feeding (the β-glucosidase BGL1, At1g52400; and the lipoxygenase LOX2, At3g45140; Stotz et al., 2000) or wounding/jasmonate (e.g. jasmonate response JR1, At3g16470; Leon et al., 1998). Finally, genes involved in secondary metabolism are over-represented in the group of up-regulated genes (Fig. 8A). It is noteworthy that genes encoding enzymes involved in flavonoid and anthocyanin biosynthesis and transport are expressed to higher levels in the cyp98A3 insertion mutant; These include chalcone isomerase (CHI, At3g55120), dihydroflavonol 4-reductase (DFR, At5g42800), flavanone 3-hydroxylase (F3H, At3g51240), and gluthation transferase (TT19, At5g17220; Weisshaar and Jenkins, 1998; Kitamura et al., 2004

Abdulrazzak N, Pollet B, Ehlting J, Larsen K, Asnaghi C, Ronseau S, Proux C, Erhardt M, Seltzer V, Renou JP, Ullmann P, Pauly M, Lapierre C, Werck-Reichhart D - A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth

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  • Gene expression

Reverse transcriptase–polymerase chain reaction (RT-PCR) analysis yielded results ... MIF1 expression was also detectable ... in the leaf, including the petiole

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

increased transcript levels of ... RGL3 ... in 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

in 35S::MIF1 seedlings ... XTH11 ... up-regulated

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

MIF2 was ... undetectable in the ... leaf

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

ABI4 ... up-regulated in the dark-grown 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

ABI3 ... up-regulated in the dark-grown 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

increased transcript levels of RGL2 ... in 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

decreased expression of RGL1 ... in 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

The expression of ... the gibberellin-responsive GASA gene family ... At2g14900, was significantly down-regulated ... in 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

Two GA 20-oxidases were significantly up-regulated in the dark-grown 35S::MIF1 seedlings (Table 2), consistent with the notion that GA biosynthesis is usually subject to negative feedback regulation (Olszewski et al., 2002). No other genes involved in GA metabolism, including GA 3-oxidases and GA 2-oxidases, showed significantly altered expression

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

MIF1 expression was undetectable in the rosette leaf blade

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

in 35S::MIF1 seedlings ... At1g62500, a member of the lipid transfer protein family that is similar to an auxin down-regulated gene in soybean (Glycine max), was found to be up-regulated

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

The expression of ... the gibberellin-responsive GASA gene family ... At1g22690 (GAST2 homolog ... was significantly down-regulated ... in 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

MIF1 was expressed ... very weakly in the petiole

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

The expression of ... the gibberellin-responsive GASA gene family, At1g74670 (GAST1-like protein) ... was significantly down-regulated ... in 35S::MIF1 seedlings

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

in 35S::MIF1 seedlings ... EXP2 ... up-regulated

Hu W, Ma H - Characterization of a novel putative zinc finger gene MIF1: involvement in multiple hormonal regulation of Arabidopsis development

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  • Gene expression

bdg cells accumulate higher levels of CER1 (∼184%) ... transcripts compared with wild-type plants

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

With this method, the Alexa Fluor 488–specific fluorescent signals were detected in the epidermis of transgenic bdg BDG–Strep-tag plants (Figures 10B to 10G) but not in the bdg mutant (Figure 10A) or wild-type plants (data not shown). Although present throughout the epidermis of incipient and developing leaf primordia, BDG accumulated to higher levels on the adaxial side of organs (Figures 10B and 10C). In contrast with mRNA in situ hybridization (Figures 9F and 9G), a stronger signal intensity was not detected in the lateral regions of leaf primordia

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

A polarly localized fluorescence pattern was observed in epidermal cells, suggesting that BDG contains a motif required for polar protein sorting (Figures 10D to 10G). In the epidermis, the epitope-specific signal was localized in the outermost cell wall layer

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

Tissue sections prepared from vegetative meristems and reproductive organs of wild-type Arabidopsis plants were hybridized with riboprobes directed against BDG mRNA ... in all organs analyzed (leaf primordia, immature floral buds, sepals, petals, and anthers), expression was found to be limited to epidermal cells

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

RNA gel blot hybridization revealed that whereas BDG is expressed in various organs, including roots, the strongest expression is detected in flowers and floral buds (see Supplemental Figure 2 online). Cauline leaves show higher levels of BDG transcripts than do rosette leaves

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

In all organs of the BDG-GFP plants, GFP fluorescence was detected exclusively in protodermal and epidermal cells

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

bdg cells accumulate higher levels of ... SHN1/WIN1 (∼158%) transcripts compared with wild-type plants

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

Leaf primordia exhibited higher levels of BDG expression in lateral regions

Kurdyukov S, Faust A, Nawrath C, Bär S, Voisin D, Efremova N, Franke R, Schreiber L, Saedler H, Métraux JP, Yephremov A - The epidermis-specific extracellular BODYGUARD controls cuticle development and morphogenesis in Arabidopsis

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  • Gene expression

RNA in situ hybridization on seedlings and inflorescences reveals BB expression mainly in proliferating tissues, i.e., shoot and floral meristems and young organs

Disch S, Anastasiou E, Sharma VK, Laux T, Fletcher JC, Lenhard M - The E3 ubiquitin ligase BIG BROTHER controls arabidopsis organ size in a dosage-dependent manner

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  • Gene expression

By RT-PCR, BB mRNA can be detected in all plant organs tested

Disch S, Anastasiou E, Sharma VK, Laux T, Fletcher JC, Lenhard M - The E3 ubiquitin ligase BIG BROTHER controls arabidopsis organ size in a dosage-dependent manner

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  • Gene expression

The BB promoter is also active ... in developing embryos

Disch S, Anastasiou E, Sharma VK, Laux T, Fletcher JC, Lenhard M - The E3 ubiquitin ligase BIG BROTHER controls arabidopsis organ size in a dosage-dependent manner

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  • Gene expression

BB expression ... in the vasculature

Disch S, Anastasiou E, Sharma VK, Laux T, Fletcher JC, Lenhard M - The E3 ubiquitin ligase BIG BROTHER controls arabidopsis organ size in a dosage-dependent manner

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  • Gene expression

To investigate whether ANT is nuclear localized, ANT was transiently expressed as a GFP fusion protein in leek epidermal cells. While GFP is present in both the cytoplasm and nucleus (Fig. 6a), the GFP–ANT protein is present exclusively in the nucleus (Fig. 6b

Krizek BA, Sulli C - Mapping sequences required for nuclear localization and the transcriptional activation function of the Arabidopsis protein AINTEGUMENTA

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  • Gene expression

in trn leaves ... ectopic GUS activity ... in the ... mesophyll layers

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

TRN1 ... expressed in ... leaves

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

trn leaves were treated with α-naphthaleneacetic acid ... expression of PDR5:GUS ... more intense ... was observed in trn

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

Strong expression of ... TRN2 was detected in the SAM

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

trn leaves were treated with α-naphthaleneacetic acid ... expression of PDR5:GUS ... more intense ... was observed in trn

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

TRN1 ... expressed in ... cell suspensions

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

TRN2 ... Expression was also detected in the lamina of the cotyledons

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

TRN1 ... expressed in seedlings

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

topology prediction programs ... predict TRN1 to be cytosolic

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

in trn leaves ... PDR5:GUS ... ectopic expression was observed along the margins

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

in trn leaves ... PDR5:GUS ... ectopic expression was observed along the margins

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

in trn leaves ... ectopic GUS activity ... in the ... mesophyll layers

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

Strong expression of ... TRN2 was detected in ... leaf primordia

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

in trn leaves ... little PDR5:GUS activity was detected at or around the vascular system of 8-d-old leaves 1 and 2

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

in trn leaves ... little PDR5:GUS activity was detected at or around the vascular system of 8-d-old leaves 1 and 2

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

PCYCB1-1:GUS activity ... trn1-1 ... ectopic activity was noted in the vascular system

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

TRN1 ... Expression was also detected in the lamina of the cotyledons

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

Strong expression of TRN1 ... was detected in the SAM

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

Strong expression of TRN1 ... was detected in the ... leaf primordia

Cnops G, Neyt P, Raes J, Petrarulo M, Nelissen H, Malenica N, Luschnig C, Tietz O, Ditengou F, Palme K, Azmi A, Prinsen E, Van Lijsebettens M - The TORNADO1 and TORNADO2 genes function in several patterning processes during early leaf development in Arabidopsis thaliana

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  • Gene expression

RbcS3 ... abundant in both young-rosettes, 2.5 weeks of age, and mature rosettes, 4 weeks of age, but decline in abundance between 4 and 5 weeks of age

Duguay J, Jamal S, Liu Z, Wang TW, Thompson JE - Leaf-specific suppression of deoxyhypusine synthase in Arabidopsis thaliana enhances growth without negative pleiotropic effects

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  • Gene expression

RbcS1 ... abundant in both young-rosettes, 2.5 weeks of age, and mature rosettes, 4 weeks of age, but decline in abundance between 4 and 5 weeks of age

Duguay J, Jamal S, Liu Z, Wang TW, Thompson JE - Leaf-specific suppression of deoxyhypusine synthase in Arabidopsis thaliana enhances growth without negative pleiotropic effects

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  • Gene expression

The temporal and spatial expression of DHS in Arabidopsis was examined by measuring GUS activity in transgenic plants expressing the transgene ProAtDHS:GUS. Quantitative fluorescence measurements of GUS in the developing 2nd rosette leaf pair revealed a small peak of DHS promoter activity at 3.5 weeks of age coincident with the onset of bolting and the initiation of nutrient translocation from rosette leaves, and a much more pronounced peak of activity at weeks 5 and 6, the period during which there is extensive cell death (Fig. 1). This bimodal pattern of DHS promoter activity temporally matches a similar pattern of DHS protein expression in senescing Arabidopsis rosettes observed previously

Duguay J, Jamal S, Liu Z, Wang TW, Thompson JE - Leaf-specific suppression of deoxyhypusine synthase in Arabidopsis thaliana enhances growth without negative pleiotropic effects

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  • Gene expression

RbcS2 ... abundant in both young-rosettes, 2.5 weeks of age, and mature rosettes, 4 weeks of age, but decline in abundance between 4 and 5 weeks of age

Duguay J, Jamal S, Liu Z, Wang TW, Thompson JE - Leaf-specific suppression of deoxyhypusine synthase in Arabidopsis thaliana enhances growth without negative pleiotropic effects

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  • Gene expression

Histochemical analysis of transgenic plants expressing ProAteIF5A1GUS indicated that AteIF5A1 is also expressed in the 2nd rosette leaf pair of 5-week-old plants

Duguay J, Jamal S, Liu Z, Wang TW, Thompson JE - Leaf-specific suppression of deoxyhypusine synthase in Arabidopsis thaliana enhances growth without negative pleiotropic effects

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  • Gene expression

Transcript levels of ICU4 were lower in the leaves than in the aerial tissues of En-2

Ochando I, Jover-Gil S, Ripoll JJ, Candela H, Vera A, Ponce MR, Martínez-Laborda A, Micol JL - Mutations in the microRNA complementarity site of the INCURVATA4 gene perturb meristem function and adaxialize lateral organs in arabidopsis

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  • Gene expression

KNAT2 was found to be misexpressed, with a 3-fold up-regulation in ... icu4-1/icu4-1 leaves

Ochando I, Jover-Gil S, Ripoll JJ, Candela H, Vera A, Ponce MR, Martínez-Laborda A, Micol JL - Mutations in the microRNA complementarity site of the INCURVATA4 gene perturb meristem function and adaxialize lateral organs in arabidopsis

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  • Gene expression

ICU4 ... transcript levels were 8-fold higher in icu4-1/icu4-1 leaves than in En-2 leaves, as is to be expected if icu4-1 escapes cleavage by the miRNA machinery

Ochando I, Jover-Gil S, Ripoll JJ, Candela H, Vera A, Ponce MR, Martínez-Laborda A, Micol JL - Mutations in the microRNA complementarity site of the INCURVATA4 gene perturb meristem function and adaxialize lateral organs in arabidopsis

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  • Gene expression

The ICU4 gene has previously been shown to be expressed in the vasculature, as seen in plants carrying a pATHB-15::β-glucuronidase (GUS) transgene (Ohashi-Ito and Fukuda, 2003)

Ochando I, Jover-Gil S, Ripoll JJ, Candela H, Vera A, Ponce MR, Martínez-Laborda A, Micol JL - Mutations in the microRNA complementarity site of the INCURVATA4 gene perturb meristem function and adaxialize lateral organs in arabidopsis

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  • Gene expression

We detected ICU4 transcripts in roots, vegetative leaves, shoots, flower buds, and open flowers of Col-0 by semiquantitative reverse transcription (RT)-PCR

Ochando I, Jover-Gil S, Ripoll JJ, Candela H, Vera A, Ponce MR, Martínez-Laborda A, Micol JL - Mutations in the microRNA complementarity site of the INCURVATA4 gene perturb meristem function and adaxialize lateral organs in arabidopsis

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  • Gene expression

To test whether the gain-of-function icu4-1 mutation altered the leaf venation pattern, we studied the expression of the pATHB-8-GUS reporter transgene, which is restricted to provascular cells and has previously been used to characterize the development of the vascular system in leaves and stems (Baima et al., 1995; Kang and Dengler, 2002; Kang et al., 2003). The pattern of GUS staining revealed no differences between the wild-type and icu4-1/icu4-1 mutant plants

Ochando I, Jover-Gil S, Ripoll JJ, Candela H, Vera A, Ponce MR, Martínez-Laborda A, Micol JL - Mutations in the microRNA complementarity site of the INCURVATA4 gene perturb meristem function and adaxialize lateral organs in arabidopsis

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  • Gene expression

FIL was not upregulated in as1

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated in ... rdr6

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ARF4 ... upregulated in ... rdr6 ... and further increased in ... double mutants with as1

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

PHAVOLUTA ... Expression is re- stricted to the adaxial domain

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ARF4 ... upregulated in ... sgs3

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ARF4 ... upregulated significantly in ago7 as pre- viously described

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated in ago7

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated significantly in ago7 ... and were slightly further increased in as1 ago7 double mutants

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

STM was also slightly upregulated in as1 whole seedlings, in contrast with leaves [35], but no additional upregulation was ob- served in the as1 ago7 double mutants, and the level of upregulation was too low to be detected by microarray analysis (see below

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

in ... rdr6 ... double mutants with as1 ... FIL was upregulated

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated in ago7 ... and further increased in ... double mutants with as1

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated in ... sgs3 ... and further increased in ... double mutants with as1

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

FIL was not upregulated ... in ago7

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

We first assayed BP accumulation in as1 and as1 ago7 (Figure S2J), but we could not detect further overexpres- sion in the double mutants, although we could not rule out changes in transcript localization

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

in ago7 ... double mutants with as1 ... FIL was upregulated

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

REVOLUTA ... Expression is re- stricted to the adaxial domain

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ARF4 ... upregulated significantly in ago7 ... and were slightly further increased in as1 ago7 double mutants

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

overexpression of FIL in the as1 ago7 double mutant was reduced in the as1 ago7 ett triple mutant

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

in ... sgs3 ... double mutants with as1 ... FIL was upregulated

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

in as1 ago7 ... FIL ... was strongly upregu- lated in the double mutant

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

FIL ... was strongly upregu- lated in ... as2 rdr6

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

We found that a gene-trap reporter gene integrated into the promoter of TAS3 was expressed on the adaxial side of early leaf primordia

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

The microRNA miR165 ... is expressed in the abaxial domain in older primordia

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated in ... sgs3

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated in ... rdr6 ... and further increased in ... double mutants with as1

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

BP was strongly upregulated in as1 mutants compared to wild-type plants

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ARF4 ... upregulated in ago7

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

BP was strongly upregulated in as1 mutants compared to wild-type plants, but no additional upregu- lation was observed in as1 ago7 double mutants

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ARF4 ... upregulated in ago7 ... and further increased in ... double mutants with as1

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

We found that a gene-trap reporter gene integrated into the promoter of TAS3 was expressed ... in stipules

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ETT ... upregulated significantly in ago7 as pre- viously described

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

PHABULOSA ... Expression is re- stricted to the adaxial domain

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

ARF4 ... upregulated in ... rdr6

Garcia D, Collier SA, Byrne ME, Martienssen RA - Specification of leaf polarity in Arabidopsis via the trans-acting siRNA pathway

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  • Gene expression

To validate our microarray results, we used qRT-PCR to analyze the expression of five genes in 3-week-old sca3-2/sca3-2 and Col-0 plants. SEP3 was 7.0- and 2.7-fold up-regulated in sca3-2 compared with Col-0, as detected by qRT-PCR and microarray analysis, respectively

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

qRT-PCR amplifications were performed on RNA extracted from 4- and 12-d-old seedlings and 21-d-old rosettes of Col-0 and the sca3-2 mutant ... transcript levels of ... clpP were ... increased in 12-d-old seedlings ... in sca3-2/sca3-2

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

down-regulated in sca3-2 ... the RNAP σ-subunit SigA ... SIG1

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

Arabidopsis in 4-d-old seedlings (showing only expanded cotyledons), 12-d-old seedlings (showing expanded cotyledons and four expanding leaves), 3-week-old rosettes (see Fig. 1, G and H), and roots ... in ... sca3-2/sca3-2 plants ... RpoTm ... showed higher transcript levels than in Col-0 in 4-d-old seedlings and 21-d-old plants

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

qRT-PCR amplifications were performed on RNA extracted from 4- and 12-d-old seedlings and 21-d-old rosettes of Col-0 and the sca3-2 mutant ... transcript levels of accD ... were reduced in 4-d-old seedlings ... in sca3-2/sca3-2

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

qRT-PCR amplifications were performed on RNA extracted from 4- and 12-d-old seedlings and 21-d-old rosettes of Col-0 and the sca3-2 mutant ... sca3-2 mutant ... rpoB ... down-regulated in all the developmental stages studied

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

down-regulated in sca3-2 ... CLA1 ... encoding the 1-deoxy-D-xylulose-5-P synthase

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

clpP transcript levels were reduced in sca3-2/sca3-2 rosettes

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

SCA3 was down-regulated in the mutant in all developmental stages studied, especially in 4-d-old seedlings

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

down-regulated in sca3-2 ... NCED4

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

down-regulated in sca3-2 ... ABSCISIC ACID1 ... ABA1; zeaxanthin epoxidase

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

In the sca3-2 mutant, the ... SIG1 ... 2.1 ... fold down-regulated by qRT-PCR, whereas microarray analyses showed ... 1.7 ... fold levels

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

Using quantitative RT (qRT)-PCR, we studied the expression of ... RpoTmp ... in 4-d-old seedlings (showing only expanded cotyledons), 12-d-old seedlings (showing expanded cotyledons and four expanding leaves), 3-week-old rosettes (see Fig. 1, G and H), and roots ... found to be expressed in all the organs and stages analyzed in wild-type ... RpoTmp ... predominantly expressed in rosettes

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

we performed a microarray analysis using RNA extracted from 3-week-old plants of the sca3-2 ... the most up-regulated gene found in the microarray was the MADS-box family member SEP3

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

Arabidopsis in 4-d-old seedlings (showing only expanded cotyledons), 12-d-old seedlings (showing expanded cotyledons and four expanding leaves), 3-week-old rosettes (see Fig. 1, G and H), and roots ... in ... sca3-2/sca3-2 plants ... RpoTmp showed higher transcript levels than in Col-0 in 4-d-old seedlings and 21-d-old plants

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

SCA3 gene ... is targeted exclusively to plastids (Hedtke et al., 1997, 1999)

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

In the sca3-2 mutant ... ABA1 ... 1.6-fold down-regulated by qRT-PCR, whereas microarray analyses showed ... 1.7-fold levels

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

Using quantitative RT (qRT)-PCR, we studied the expression of the RpoTm ... in 4-d-old seedlings (showing only expanded cotyledons), 12-d-old seedlings (showing expanded cotyledons and four expanding leaves), 3-week-old rosettes (see Fig. 1, G and H), and roots ... found to be expressed in all the organs and stages analyzed in wild-type ... plants. In Col-0, RpoTm reached the highest level of expression in 12-d-old seedlings, where it was 1.9-, 1.5-, and 2.1-fold higher than in 4-d-old seedlings, rosettes, and roots, respectively

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

qRT-PCR amplifications were performed on RNA extracted from 4- and 12-d-old seedlings and 21-d-old rosettes of Col-0 and the sca3-2 mutant ... sca3-2 mutant ... rpoC1 ... down-regulated in ... all the developmental stages studied

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

In the sca3-2 mutant, the LCHB2 ... 6.4 ... fold down-regulated by qRT-PCR, whereas microarray analyses showed 3.7 ... fold levels

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

Arabidopsis in 4-d-old seedlings (showing only expanded cotyledons), 12-d-old seedlings (showing expanded cotyledons and four expanding leaves), 3-week-old rosettes (see Fig. 1, G and H), and roots ... in ... sca3-2/sca3-2 plants ... RpoTm ... reduction was found ... in 12-d-old seedlings

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

In the sca3-2 mutant ... PSAK ... 2.8 ... fold down-regulated by qRT-PCR, whereas microarray analyses showed ... 2.1 ... fold levels

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

qRT-PCR amplifications were performed on RNA extracted from 4- and 12-d-old seedlings and 21-d-old rosettes of Col-0 and the sca3-2 mutant ... transcript levels were reduced in sca3-2/sca3-2 ... of rps18 only in 4-d-old seedlings

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

qRT-PCR amplifications were performed on RNA extracted from 4- and 12-d-old seedlings and 21-d-old rosettes of Col-0 and the sca3-2 mutant ... transcript levels of ... clpP were reduced in 4-d-old seedlings ... in sca3-2/sca3-2

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

Arabidopsis in 4-d-old seedlings (showing only expanded cotyledons), 12-d-old seedlings (showing expanded cotyledons and four expanding leaves), 3-week-old rosettes (see Fig. 1, G and H), and roots ... in ... sca3-2/sca3-2 plants ... RpoTmp ... a reduction was found ... in 12-d-old seedlings

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

qRT-PCR amplifications were performed on RNA extracted from 4- and 12-d-old seedlings and 21-d-old rosettes of Col-0 and the sca3-2 mutant ... transcript levels of accD and ... were ... increased in 12-d-old seedlings ... in sca3-2/sca3-2

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

down-regulated in sca3-2 ... CLB6

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

down-regulated in sca3-2 ... CHLOROPLAST BIOGENESIS 4 ... CLB4; hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate synthase

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

Using quantitative RT (qRT)-PCR, we studied the expression ... SCA3 (RpoTp) ... 4-d-old seedlings (showing only expanded cotyledons), 12-d-old seedlings (showing expanded cotyledons and four expanding leaves), 3-week-old rosettes (see Fig. 1, G and H), and roots ... found to be expressed in all the organs and stages analyzed in wild-type ... SCA3 ... predominantly expressed in rosettes ... transcripts accumulated 3.3-, 2.5-, and 2.8-fold higher than in 4- and 12-d-old seedlings and roots, respectively

Hricová A, Quesada V, Micol JL - The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis

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  • Gene expression

leaves of the sgs3-11 as2-101 ... contained ... reduced levels of REV transcripts

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

miR165/166 ... transcript levels were ... elevated in the rdr6-3 as2-101 leaves

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

REV transcripts were detected in the earlier stage leaf primordia in ... zip as1-101

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

leaves of the ... zip as2-101 ... contained ... reduced levels of REV transcripts

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

REV ... repressed ... in the rdr6-3 as2-101 leaves

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

PHB ... repressed ... in the rdr6-3 as2-101 leaves

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

leaves of the ... zip as2-101 ... double mutant plants contained dramatically enhanced miR165/ 166 levels

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

REV transcripts were detected in the earlier stage leaf primordia in ... sgs3-11 as2-101

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

FIL transcript levels were ... elevated in the rdr6-3 as2-101 leaves

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

leaves of the sgs3-11 as2-101 ... double mutant plants contained dramatically enhanced miR165/ 166 levels

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

rdr6-3 as2-101 ... leaves ... contained ... reduced levels of REV transcripts

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

REV transcripts were detected in the earlier stage leaf primordia in ... zip as2-101

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

REV transcripts were detected in the earlier stage leaf primordia in sgs3-11 as1-101

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

the FILAMENTOUS FLOWER (FIL) gene that is known to promote abaxial leaf identity (Bowman 2000, Eshed et al. 2001) was expressed more abundantly in the ago1-27 as2-101 leaves than in the ago1-27 and as2-101 single mutant leaves

Xu L, Yang L, Pi L, Liu Q, Ling Q, Wang H, Poethig RS, Huang H - Genetic interaction between the AS1-AS2 and RDR6-SGS3-AGO7 pathways for leaf morphogenesis

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  • Gene expression

To investigate OBP2 expression at the cell and tissue level, approximately 1 kb of the 5′ upstream regulatory region of OBP2 was fused to the E. coliβ-glucuronidase (GUS) reporter gene and transferred to the nuclear genome of Arabidopsis ... In leaves, GUS expression in the vasculature was strongest in phloem cells

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

To reduce OBP2 transcript level, we transformed Arabidopsis plants with an RNAi–OBP2 construct ... CYP79 ... B3 ... significantly reduced in just one line

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

mechanical wounding, which stimulates jasmonate biosynthesis, enhanced OBP2 transcript level

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

To reduce OBP2 transcript level, we transformed Arabidopsis plants with an RNAi–OBP2 construct ... CYP79B2 ... significantly reduced in just one line

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

Targeted expression analysis on 35S:OBP2 plants using quantitative real-time PCR (Q-RTPCR) confirmed the increased transcript levels of ... ATR1 ... identified by transcript profiling

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

Targeted expression analysis on 35S:OBP2 plants using quantitative real-time PCR (Q-RTPCR ... showed increases for CYP83B1 ... which were not represented on the array

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

Using semi-quantitative RT-PCR, OBP2 was previously found to be expressed in all organs of 6-week-old Arabidopsis plants, revealing the highest expression in roots and leaves, and a comparatively weak expression in stems and flowers

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

To reduce OBP2 transcript level, we transformed Arabidopsis plants with an RNAi–OBP2 construct ... CYP83B1 was significantly reduced in two lines

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

Targeted expression analysis on 35S:OBP2 plants using quantitative real-time PCR (Q-RTPCR ... showed increases for ... MAM-1 ... which were not represented on the array

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

Northern blot analysis indicated that the OBP2 transcript level increased within 4–6 h upon external MeJA application

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

To reduce OBP2 transcript level, we transformed Arabidopsis plants with an RNAi–OBP2 construct ... MAM-1 ... not changed

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

Targeted expression analysis on 35S:OBP2 plants using quantitative real-time PCR (Q-RTPCR) confirmed the increased transcript levels of CYP79B2 ... identified by transcript profiling

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

Targeted expression analysis on 35S:OBP2 plants using quantitative real-time PCR (Q-RTPCR) confirmed the increased transcript levels of CYP79 ... B3 ... identified by transcript profiling

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

To reduce OBP2 transcript level, we transformed Arabidopsis plants with an RNAi–OBP2 construct ... ATR1 ... not changed

Skirycz A, Reichelt M, Burow M, Birkemeyer C, Rolcik J, Kopka J, Zanor MI, Gershenzon J, Strnad M, Szopa J, Mueller-Roeber B, Witt I - DOF transcription factor AtDof1

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  • Gene expression

the intracellular localization of ARL by transient expression of a 35S-ARL–GFP or a 35S-GFP–ARL fusion gene in onion epidermal cells using green fluorescent protein (GFP) alone as a control. The intracellular distribution of both fusion proteins was similar to that of GFP alone (Figure 1c), indicating no specific cellular localization of ARL to any cellular compartment

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

TCH4 gene is expressed in expanding cells ... and is responsive to some plant hormones and stimuli, including auxin, BR and touch

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL transcript were ... somewhat repressed by ... GA treatments

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL transcript were just slightly elevated by ... cytokinin

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL transcript were just slightly elevated by auxin

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL transcript were ... somewhat repressed by ABA

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL expression was detected throughout the cotyledons

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

an apparent induction of ARL (2.2-fold) was found when seedlings were treated with epi-brassinolide (epi-BL)

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

transcript levels of TCH4 were reduced in ARLi lines

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARGOS transcripts ... remained almost unchanged under epi-BL treatment

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL expression was detected ... not in ... juvenile leaves

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

transcript levels of TCH4 were ... elevated in ARL-OE lines

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

the induction of ARL by epi-BL was disrupted in bri1–119

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARGOS observed only in juvenile leaves

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARGOS observed ... in ... vascular tissues of cotyledons

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARGOS transcripts were highly induced by ... cytokinin

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARGOS transcripts were highly induced by auxin

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

the induction of ARL by epi-BL was ... still detectable in the BR-deficient mutant det2-1

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL expression was detected ... not in leaf primordia

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

ARL expression was ... also observed in expanding leaves

Hu Y, Poh HM, Chua NH - The Arabidopsis ARGOS-LIKE gene regulates cell expansion during organ growth

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  • Gene expression

Dividing, but not mature, leaf cells contained high SGB1 levels

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

Application of d-glucose greatly increased the steady-state level of the SGB1-GUS fusion protein and its distribution pattern

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

SGB1 RNA was detected in various tissues of wild-type plants by RT-PCR

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

Neither the absence ... of SGB1 had an effect on AGB1 gene expression

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

A specific set of newly formed cells of vascular traces in expanding leaves was shown to contain SGB1

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

Similarly, sucrose increased the steady-state level of SGB1-GUS but with less efficacy. Sorbitol, inositol, and fructose did not alter the levels or distribution pattern of SGB1 over the no-sugar control

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

SGB1 protein was also high in ... embryos

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

SGB1-YFP driven by the native promoter in wild-type (Figure 7B) and agb1-2 null (Figure 7C) backgrounds showed that fluorescence was observed in root tissues where the SGB1 promoter is active (Figure 6, B and C). Moreover, the fluorescence imaging was observed to be in multiple punctate compartments within each cell, reminiscent of the size, distribution, and number of Golgi apparatus in plant cells (Boevink et al., 1998 blue right-pointing triangle). Moreover, the dynamics of SGB1-GFP movement (our unpublished data) also matched published Golgi dynamics ... To confirm that the observed fluorescence was the Golgi apparatus, BFA was used. BFA has been shown in plants to disrupt the integrity of Golgi stacks, resulting in the fusion of the endoplasmic reticulum (ER) and the Golgi stacks and the formation of so called “BFA compartments” (Ritzenthaler et al., 2002 blue right-pointing triangle). After treatment with brefeldin-A (Figure 7D, bottom), the GFP fluorescence was observed to change from punctate structures representing the Golgi to both a diffuse fluorescence representing the fused ER/Golgi compartments and larger punctate structures representing the newly formed BFA compartments (Ritzenthaler et al., 2002 blue right-pointing triangle). Z-stack reconstruction imaging of the young leaf epidermal cells of SGB1-GFP plants before (Figure 7E, untreated) and after BFA treatment (Figure 7D, +100 μM BFA) clearly demonstrate the effect of BFA on SGB1 localization. Higher magnification imaging of an individual BFA compartment (Figure 7, F and G) demonstrated that the larger BFA compartments were made up of fused smaller compartments, presumably individual Golgi stacks. Figure 7F is a three-dimensional reconstruction from a Z-stack acquisition of control and BFA-treated cells

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

nor excessive amount of SGB1 had an effect on AGB1 gene expression

Wang HX, Weerasinghe RR, Perdue TD, Cakmakci NG, Taylor JP, Marzluff WF, Jones AM - A Golgi-localized hexose transporter is involved in heterotrimeric G protein-mediated early development in Arabidopsis

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  • Gene expression

RE expression ... GUS activity was also detected in ... cauline leaves

González-Bayón R, Kinsman EA, Quesada V, Vera A, Robles P, Ponce MR, Pyke KA, Micol JL - Mutations in the RETICULATA gene dramatically alter internal architecture but have little effect on overall organ shape in Arabidopsis leaves

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  • Gene expression

RE expression ... GUS activity ... decreased as leaves aged

González-Bayón R, Kinsman EA, Quesada V, Vera A, Robles P, Ponce MR, Pyke KA, Micol JL - Mutations in the RETICULATA gene dramatically alter internal architecture but have little effect on overall organ shape in Arabidopsis leaves

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  • Gene expression

RE expression ... GUS activity was high in the vasculature of developing leaf primordia

González-Bayón R, Kinsman EA, Quesada V, Vera A, Robles P, Ponce MR, Pyke KA, Micol JL - Mutations in the RETICULATA gene dramatically alter internal architecture but have little effect on overall organ shape in Arabidopsis leaves

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  • Gene expression

RE expression ... in the wild types ... roots, rosette leaves, stems, flower buds, and open flowers of Col-0, En-2 and Ler

González-Bayón R, Kinsman EA, Quesada V, Vera A, Robles P, Ponce MR, Pyke KA, Micol JL - Mutations in the RETICULATA gene dramatically alter internal architecture but have little effect on overall organ shape in Arabidopsis leaves

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  • Gene expression

RE expression ... GUS activity was also detected in stipules

González-Bayón R, Kinsman EA, Quesada V, Vera A, Robles P, Ponce MR, Pyke KA, Micol JL - Mutations in the RETICULATA gene dramatically alter internal architecture but have little effect on overall organ shape in Arabidopsis leaves

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  • Gene expression

Subsequently, during leaf development, the pattern of PPD expression followed the tip-to-base progression of the general proliferative arrest front before becoming restricted to developing vascular traces and eventually declining in expression in the same pattern as the arrest of procambial cell division

White DW - PEAPOD regulates lamina size and curvature in Arabidopsis

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  • Gene expression

During leaf development, PPD expression was first detected at the tip of the developing leaf, distal to the general proliferative cell-cycle arrest front and coincident with the initiation of trichome and margin cell development (Fig. 4 A and D Inset). This expression appeared to exist initially in all cells in the newly formed DMC zone and was not restricted to meristemoid cells

White DW - PEAPOD regulates lamina size and curvature in Arabidopsis

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  • Gene expression

Subsequently, during leaf development, the pattern of PPD expression followed the tip-to-base progression of the general proliferative arrest front before becoming restricted to developing vascular traces and eventually declining in expression in the same pattern as the arrest of procambial cell division

White DW - PEAPOD regulates lamina size and curvature in Arabidopsis

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  • Gene expression

During leaf development, PPD expression was first detected at the tip of the developing leaf, distal to the general proliferative cell-cycle arrest front and coincident with the initiation of trichome and margin cell development (Fig. 4 A and D Inset). This expression appeared to exist initially in all cells in the newly formed DMC zone and was not restricted to meristemoid cells

White DW - PEAPOD regulates lamina size and curvature in Arabidopsis

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  • Gene expression

DR5-GUS reporter was not expressed in the veins of 21-day-old Col-0 and hve-3/hve-3 leaves from the first, third and seventh nodes

Alonso-Peral MM, Candela H, del Pozo JC, Martínez-Laborda A, Ponce MR, Micol JL - The HVE/CAND1 gene is required for the early patterning of leaf venation in Arabidopsis

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  • Gene expression

ATHB-8-GUS ... the expression of the reporter revealed a much simpler GUS pattern in hve-3/hve-3 leaves than in wild-type leaves of the same age (compare Fig. 5A with 5I, 5B with 5J, 5C with 5K, and 5D with 5L). The GUS pattern was restricted to the fully differentiated venation pattern of the mutant, which lacked most tertiary and higher order veins. The absence of GUS staining at the sites where the veins normally differentiate indicates that ATHB-8-GUS expression is dependent on the earlier acquisition of vascular fate at specific locations within the leaf. Identical results were obtained in comparisons of Ws-2 with hve-1/hve-1

Alonso-Peral MM, Candela H, del Pozo JC, Martínez-Laborda A, Ponce MR, Micol JL - The HVE/CAND1 gene is required for the early patterning of leaf venation in Arabidopsis

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  • Gene expression

Col-0 RNA was extracted from assorted organs and RT-PCR amplified, and HVE was found to be expressed in every organ studied

Alonso-Peral MM, Candela H, del Pozo JC, Martínez-Laborda A, Ponce MR, Micol JL - The HVE/CAND1 gene is required for the early patterning of leaf venation in Arabidopsis

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  • Gene expression

postembryonic spatial expression pattern ... HVE ... GUS staining was mostly confined to the leaf vasculature in 21-day-old plants, indicating that HVE expression changes dynamically throughout leaf development (Fig. 4C). For cotyledons and vegetative leaves, the expression in mesophyll cells was apparently more intense at the beginning of leaf expansion, disappearing progressively as the leaves grew (Fig. 4D,E-H,P). Closer inspection revealed that the gene was expressed before xylem differentiation in developing veins at the basal actively dividing region of rosette leaves (Fig. 4R) and, after the differentiation of tracheary elements, in the living cells of the vascular bundles (Fig. 4Q

Alonso-Peral MM, Candela H, del Pozo JC, Martínez-Laborda A, Ponce MR, Micol JL - The HVE/CAND1 gene is required for the early patterning of leaf venation in Arabidopsis

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  • Gene expression

To further define the postembryonic spatial expression pattern of HVE/CAND1, we characterized the wild-type expression pattern (Fig. 4) of a CAND1 promoter-GUS fusion (PETA2-GUS) that includes 2.7 kb of upstream sequence (Chuang et al., 2004). Consistent with the pleiotropic phenotype of loss-of-function hve mutants and with our semi-quantitative RT-PCR results, the gene was found almost ubiquitously expressed in aerial and underground organs of 10-day-old plants (Fig. 4A,B). At this stage, the gene was widely expressed in rosette leaves, at the highest level in the vasculature

Alonso-Peral MM, Candela H, del Pozo JC, Martínez-Laborda A, Ponce MR, Micol JL - The HVE/CAND1 gene is required for the early patterning of leaf venation in Arabidopsis

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  • Gene expression

DR5-GUS reporter ... was in the leaf margin, the hydathodes and some mesophyll regions. For actively developing leaves of the 9th and upper nodes, by contrast, the DR5-GUS reporter was expressed at the tip, hydathodes, and tertiary and higher order veins of the proximal regions of the lamina in the wild type, but only at the tip in hve-3/hve-3 leaves

Alonso-Peral MM, Candela H, del Pozo JC, Martínez-Laborda A, Ponce MR, Micol JL - The HVE/CAND1 gene is required for the early patterning of leaf venation in Arabidopsis

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  • Gene expression

ATHB-8-GUS reporter ... in ... wild-type leaves, the expression of the reporter uncovered a complex, reticulate pattern consisting of mature and differentiating vascular strands

Alonso-Peral MM, Candela H, del Pozo JC, Martínez-Laborda A, Ponce MR, Micol JL - The HVE/CAND1 gene is required for the early patterning of leaf venation in Arabidopsis

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  • Gene expression

We observed a similar expression profile of ectopic BP but not STM in leaves of a dominant Aux/IAA17 mutant, axr3-1

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

polar localisation of PIN1:GFP in margin cells of plants grown on MS medium (arrowheads, Fig. 3G) were abolished in NPA-grown plants

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

BP::GUS ... expression was observed ... in the petiole ... of as1 leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

We observed misexpression of BP transcripts in pin1 leaves, relative to wild type

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

in as1 ... leaves ... This ectopic BP expression ... was not accompanied by a reduction in AS1 transcripts

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

Although BP::GUS was absent from wild-type leaves (Fig. 1R), expression was observed in the serration tips of axr1 leaves (Fig. 1S), and in the petiole, midvein and serration tips of as1 leaves (Fig. 1T). However, the pattern of BP::GUS expression in as1;axr1 double mutant leaves was different than that of either single mutant, being sharply localised to margin cells in the sinus of every lobe from an early stage in leaf development (arrows, Fig. 1U,V), correlating with the ectopic initiation of stipules

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

In comparison with wild-type leaves ... DR5::GUS expression was repressed in the distal lamina and concentrated in developing lobes of 35S::BP leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

This ectopic BP expression in axr1 leaves was not accompanied by a reduction in AS1 transcripts

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

BP::GUS ... expression was observed in the serration tips of axr1 leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

we observed ectopic BP::GUS expression in the leaves of plants treated with the auxin transport inhibitors 1-N-naphthylphthalamic acid (NPA) or 2,3,5triiodobenzoic acid (TIBA

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

We observed inappropriate expression of the KNOX gene BP but not SHOOTMERISTEMLESS (STM) in axr1 mutant leaves, although the level of BP expression was substantially higher in as1 than in axr1 leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

We observed inappropriate expression of the KNOX gene BP ... in axr1 mutant leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

in FIL>>BP plants ... NPA treatment ... prevented the generation of PIN1-directed auxin maxima in the leaf margin

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

In comparison with wild-type leaves ... PIN1::GUS ... expression was repressed in the distal lamina and concentrated in developing lobes of 35S::BP leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

We observed inappropriate expression of the KNOX gene BP but not SHOOTMERISTEMLESS (STM) in axr1

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

PIN1:GFP expression in initiating leaflets of FIL>>BP leaves was indistinguishable from that of wild type; however, expression persisted as leaflets developed in FIL>>BP leaves (arrows Fig. 4G), suggesting that KNOX activity in the leaf prevents the normal basipetal displacement of PIN1:GFP expression maxima, correlating with prolonged localised growth and leaflet formation

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

BP::GUS was absent from wild-type leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

PIN1:GFP expression in initiating leaflets of FIL>>BP leaves was indistinguishable from that of wild type; however, expression persisted as leaflets developed in FIL>>BP leaves (arrows Fig. 4G), suggesting that KNOX activity in the leaf prevents the normal basipetal displacement of PIN1:GFP expression maxima, correlating with prolonged localised growth and leaflet formation. BP-induced alterations in PIN1:GFP expression were mirrored by similar alterations in expression of the AINTEGUMENTA (ANT) gene

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

DR5rev::GFP was localised in the tips of initiating serrations

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

in pin1 leaves, relative to wild type ... AS1 transcript levels were unaltered

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

BP::GUS ... was observed ... in the ... midvein ... of as1 leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

We observed inappropriate expression of the KNOX gene BP ... expression was substantially higher in as1 than in axr1 leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

We observed a similar expression profile of ectopic BP ... in leaves of a dominant Aux/IAA17 mutant, axr3-1

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

polar expression of PIN1:GFP in the epidermis

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

BP::GUS ... expression was observed ... in the petiole, midvein and serration tips of as1 leaves

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

in the leaves of plants treated with the auxin transport inhibitors 1-N-naphthylphthalamic acid (NPA) or 2,3,5triiodobenzoic acid (TIBA ... STM::GUS expression was unaltered

Hay A, Barkoulas M, Tsiantis M - ASYMMETRIC LEAVES1 and auxin activities converge to repress BREVIPEDICELLUS expression and promote leaf development in Arabidopsis

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  • Gene expression

FAS1 transcript ... fas1-1 ... is a null allele

Exner V, Taranto P, Schönrock N, Gruissem W, Hennig L - Chromatin assembly factor CAF-1 is required for cellular differentiation during plant development

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  • Gene expression

some FAS1 transcript is made in the fas1-4 insertion mutant (see Fig. S1 in the supplementary material), demonstrating that fas1-1 but not fas1-4 is a null allele

Exner V, Taranto P, Schönrock N, Gruissem W, Hennig L - Chromatin assembly factor CAF-1 is required for cellular differentiation during plant development

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  • Gene expression

fas2 alleles appear to be null

Exner V, Taranto P, Schönrock N, Gruissem W, Hennig L - Chromatin assembly factor CAF-1 is required for cellular differentiation during plant development

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  • Gene expression

the Atebp1(RNAi) plants had a ... reduction of the CDKB1;1

Horváth BM, Magyar Z, Zhang Y, Hamburger AW, Bakó L, Visser RG, Bachem CW, Bögre L - EBP1 regulates organ size through cell growth and proliferation in plants

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  • Gene expression

We found that the overexpression of EBP1 in Arabidopsis cells dose-dependently reduced the endogenous RBR1 protein

Horváth BM, Magyar Z, Zhang Y, Hamburger AW, Bakó L, Visser RG, Bachem CW, Bögre L - EBP1 regulates organ size through cell growth and proliferation in plants

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  • Gene expression

We found that silencing of AtEBP1 completely abolished the activation of RNR2 promoter by auxin (Figure 5E), indicating that AtEBP1 is required for the auxin-dependent promoter activity

Horváth BM, Magyar Z, Zhang Y, Hamburger AW, Bakó L, Visser RG, Bachem CW, Bögre L - EBP1 regulates organ size through cell growth and proliferation in plants

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  • Gene expression

In contrast, the Atebp1(RNAi) plants had a consistently elevated RBR1 protein accumulation

Horváth BM, Magyar Z, Zhang Y, Hamburger AW, Bakó L, Visser RG, Bachem CW, Bögre L - EBP1 regulates organ size through cell growth and proliferation in plants

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  • Gene expression

expression levels of ... CYP90D1 (a ROT3 homolog ... not altered in ... lng1-3 lng2-1

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

we determined the expression patterns of these genes in promoter:GUS transgenic plants. Promoter sequences (∼2 kb) from the LNG1 and LNG2 genes were used to drive expression of GUS. The ProLNG1:GUS ... expressed in ... leaf blades

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

we determined the expression patterns of these genes in promoter:GUS transgenic plants. Promoter sequences (∼2 kb) from the LNG1 and LNG2 genes were used to drive expression of GUS. The ProLNG1:GUS ... expressed in various parts of adult transgenic plants, including the petioles

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

we determined the expression patterns of these genes in promoter:GUS transgenic plants. Promoter sequences (∼2 kb) from the LNG1 and LNG2 genes were used to drive expression of GUS ... ProLNG2:GUS ... expressed in ... petioles

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

lng1-1D ... T-DNA insertion at 5477 bp upstream of At5g15880 ... Northern blot analysis indicated that the expression of one gene (At5g15880) was higher in mutant plants compared with wild type

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

expression levels of ... AN ... not altered in lng1-1D

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

LNG2 expression levels were unchanged in the rot3-1 mutant

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

ProLNG1:GUS ... GUS staining ... stronger staining in the veins

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

expression levels of ... ATHB13 were not altered in lng1-1D

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

ProLNG2:GUS ... In leaves, GUS staining was observed in all parts

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

expression levels of ROT3 ... not altered in ... lng1-3 lng2-1

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

ProLNG2:GUS ... GUS was strongly expressed in and at the base of the petioles

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

ProLNG1:GUS ... GUS was strongly expressed in and at the base of the petioles

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

expression levels of ROT3 ... not altered in lng1-1D

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

ProLNG1:GUS ... In leaves, GUS staining was observed in all parts

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

The GFP-LNG1 fusion protein showed similar localizations in ... nucleus

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

expression levels of ... AN ... not altered in ... lng1-3 lng2-1

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

expression levels of ... ATHB13 were not altered in ... lng1-3 lng2-1

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

expression levels of ... CYP90D1 (a ROT3 homolog ... not altered in lng1-1D

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

The GFP-LNG1 fusion protein showed similar localizations in ... the cytosol

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

LNG1 ... expression levels were unchanged in the rot3-1 mutant

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

we determined the expression patterns of these genes in promoter:GUS transgenic plants. Promoter sequences (∼2 kb) from the LNG1 and LNG2 genes were used to drive expression of GUS ... ProLNG2:GUS ... expressed in ... leaf blades

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

ProLNG2:GUS ... GUS staining ... stronger staining in the veins

Lee YK, Kim GT, Kim IJ, Park J, Kwak SS, Choi G, Chung WI - LONGIFOLIA1 and LONGIFOLIA2, two homologous genes, regulate longitudinal cell elongation in Arabidopsis

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  • Gene expression

To obtain further insights into the potential role of farnesylation for AtNAP1;1 subcellular localization, GFP-AtNAP1;1 and GFP-AtNAP1;1C369S were stably expressed in transgenic tobacco BY-2 cells (Fig. 2B). GFP-AtNAP1;1 was localized in both the cytoplasm and the nucleoplasm of interphase cells. During mitosis, GFP-AtNAP1;1 was colocalized with the phragmoplast in telophase

Galichet A, Gruissem W - Developmentally controlled farnesylation modulates AtNAP1;1 function in cell proliferation and cell expansion during Arabidopsis leaf development

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  • Gene expression

To investigate the subcellular localization of AtNAP1;1, GFP-AtNAP1;1 and GFP-AtNAP1;1C369S were transiently expressed in onion (Allium cepa) epidermal cells. GFP alone was distributed uniformly in the nucleus and the cytoplasm, whereas GFP-AtNAP1;1 and GFP-AtNAP1;1C369S were restricted to the cytoplasm

Galichet A, Gruissem W - Developmentally controlled farnesylation modulates AtNAP1;1 function in cell proliferation and cell expansion during Arabidopsis leaf development

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  • Gene expression

BOLpromoter-GUS construct was used to study further the temporal and spatial pattern of expression ... Five days after germination, seedlings showed mild staining at the SAM

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

bol- D ... Arabidopsis leaves ... many calcium or calmodulin binding genes, including the calcium dependent protein kinase CPK32, were also downregulated

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

bol- D ... Arabidopsis leaves ... The auxin induced genes TCH3 and PBP1 which contain calcium binding motives and interact in a calcium dependent manner with the PINOID kinase, a key component in auxin signaling, were also repressed

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

BOLpromoter-GUS construct was used to study further the temporal and spatial pattern of expression ... In the first 2 days after germination, staining occurred at the shoot apical meristem

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

BOLpromoter-GUS construct was used to study further the temporal and spatial pattern of expression ... Emerging leaves from older seedlings stained first at the tip and later at separated spots at the leaf periphery (hydatodes)

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

BOLpromoter-GUS construct was used to study further the temporal and spatial pattern of expression ... Five days after germination, seedlings showed ... intense staining at leaf primordia

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

BOLpromoter-GUS construct was used to study further the temporal and spatial pattern of expression ... In the first 2 days after germination, staining occurred ... at the distal regions of the cotyledons

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

RT-PCR experiments were then performed to assess expression of AP2/ERF gene At1g24590, representing the best candidate based on the position of the insert in the activation tag mutant and the nature of the gene itself. While in wild type plants the presence of its transcript was detected only in flower buds, in the bol-D mutant hyper-accumulation of this transcript occurred in roots, rosette and cauline leaves, flowers buds and open flowers

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

bol- D ... Arabidopsis leaves ... The auxin induced genes TCH3 and PBP1 which contain calcium binding motives and interact in a calcium dependent manner with the PINOID kinase, a key component in auxin signaling, were also repressed

Marsch-Martinez N, Greco R, Becker JD, Dixit S, Bergervoet JH, Karaba A, de Folter S, Pereira A - BOLITA, an Arabidopsis AP2/ERF-like transcription factor that affects cell expansion and proliferation/differentiation pathways

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  • Gene expression

ProCUC2:GUS reporter ... In larger leaves, GUS staining was restricted to the proximal part of the leaves, in which the teeth were still forming

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

ProMIR164A-2.1:GUS construct ... later appeared ... in the vasculature

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

GUS staining was observed at the point of insertion of the primordium into the meristem in plants carrying the ProMIR164A-2.1:GUS construct

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

In mir164a-4 leaves ... At5g61430 transcript levels were two to three times higher than those in the wild type

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

no ectopic KNAT1 ... expression was observed in the serrated CUC2g-m4 leaves

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

In mir164a-4 leaves ... At5g07680 ... transcript levels were two to three times higher than those in the wild type

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

In mir164a-4 leaves ... CUC2 transcript levels were about five times higher than those in the wild type

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

no ectopic ... KNAT2 expression was observed in the serrated CUC2g-m4 leaves

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

ProMIR164A-2.1:GUS ... later appeared at the tip of the organ

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

ProMIR164A-2.1:GUS construct ... In small primordia, GUS activity was observed at the margins

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

ProCUC2:GUS reporter ... During leaf development, GUS activity was observed in the margins of the developing primordium

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

In mir164a-4 leaves, NAC1 ... transcript levels ... were two to three times higher than those in the wild type

Nikovics K, Blein T, Peaucelle A, Ishida T, Morin H, Aida M, Laufs P - The balance between the MIR164A and CUC2 genes controls leaf margin serration in Arabidopsis

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  • Gene expression

A transcriptional reporter for MUTE is expressed ... at lower levels in ... guard cells

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

A transcriptional green fluorescent protein (GFP) reporter (SPCHpro::nucGFP) and a rescuing translational reporter (SPCHpro::SPCH�GFP) are expressed in a subset of epidermal cells that lack overt signs of differentiation ... Expression commences in cotyledons coincident with the onset of postembryonic cell division

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

SPCH is expressed in the developing leaf epidermis

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

spch-1 plants also fail to express TMM

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

In older organs, SPCHpro::SPCH�GFP expression continues to be restricted to small cells in the epidermis (Fig. 2d), including cells that have recently divided next to stomatal lineage cells

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

SPCHpro::nucGFP persists in stomatal lineage cells

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

A transcriptional reporter for MUTE is expressed ... at lower levels in GMCs

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

SPCH expression is often found in two neighbouring cells�a pattern consistent with expression in the dividing cell population

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

A transcriptional reporter for MUTE is expressed strongly in meristemoids

MacAlister CA, Ohashi-Ito K, Bergmann DC - Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

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  • Gene expression

FAMA::FAMA�GFP, a translational fusion of GFP and FAMA ... In the wild-type leaf epidermis, FAMA�GFP was specifically detected in the nuclei of GMCs

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

To examine ... subcellular localization, we used ... the translational fusion of a full-length MUTE protein and GFP (MUTE::MUTE�GFP ... The MUTE�GFP fusion protein was localized in the nuclei ... nuclei of ... recently transitioned GMCs

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

Bubble-like� clusters of small cells ... observed in the epidermis of ... mute; erecta; erl1; erl2 ... expressed ... ERL1::GUS at high levels

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

In the wild-type leaf epidermis, FAMA�GFP was specifically detected in the nuclei ... early, immature guard cells

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

To examine ... subcellular localization, we used ... the translational fusion of a full-length MUTE protein and GFP (MUTE::MUTE�GFP ... No GFP signal was detected in ... immature ... e and mature guard cells

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

FAMA is expressed in GMCs

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

Bubble-like� clusters of small cells ... observed in the epidermis of mute; tmm ... expressed ... ERL1::GUS at high levels

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

In mute, no FAMA�GFP expression was detected

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

Bubble-like� clusters of small cells ... observed in the epidermis of mute; tmm ... expressed TMM::GUS ... at high levels

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

TMM ... mark stomatal lineage cells with the highest expression in meristemoids ... TMM::TMM�GFP

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

To examine ... subcellular localization, we used ... the translational fusion of a full-length MUTE protein and GFP (MUTE::MUTE�GFP ... The MUTE�GFP fusion protein was localized in the nuclei of a subset of meristemoids that have undergone a few rounds of asymmetric division

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

SPCH promoter activity (SPCH::GUS) was ... localized in stomatal lineage cells later in development

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

The spch mutant does not express MUTE transcripts

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

To examine promoter activity ... we used the native MUTE promoter to drive expression of the GUS reporter ... residual activity in GMC

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

ERL1 mark stomatal lineage cells with the highest expression in meristemoids ... ERL1::GUS, a reporter b-glucuronidase driven by the ERL1 promoter6

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

FAMA is expressed in ... immature guard cells

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

To examine ... subcellular localization, we used ... the translational fusion of a full-length MUTE protein and GFP (MUTE ... MUTE�GFP ... No GFP signal was detected in ... newly formed meristemoids

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

SPCH promoter activity (SPCH::GUS) was observed broadly in the protoderm of leaf primordia

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

The ... arrested mute meristemoids expressed high levels ... ERL1::GUS, a reporter b-glucuronidase driven by the ERL1 promoter6

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

The arrested mute meristemoids expressed high levels of TMM::TMM�GFP, a translational fusion of TMM with a green fluorescent protein

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

Bubble-like� clusters of small cells ... observed in the epidermis of ... mute; erecta; erl1; erl2 ... expressed TMM::GUS ... at high levels

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

To examine promoter activity ... we used the native MUTE promoter to drive expression of the GUS reporter (MUTE::GUS ... MUTE::GUS expression ... residual activity in ... immature guard cells

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

In ... ectopic overexpression of SPCH by the CaMV35S promoter ... numerous small cells ... strongly express TMM::TMM�GFP, indicating that they probably have the identity of stomatal lineage cells

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

ERL1 mark stomatal lineage cells ... ERL1::GUS, a reporter b-glucuronidase driven by the ERL1 promoter6

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

Likewise, the arrested meristemoids in mute did not express the mature-guard-cell-specific GFP marker E994

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

TMM ... mark stomatal lineage cells with the highest expression in meristemoids ... TMM::TMM�GFP

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

To examine promoter activity ... we used the native MUTE promoter to drive expression of the GUS reporter (MUTE::GUS ... MUTE::GUS expression was highest in a subset of meristemoids that have undergone a few rounds of asymmetric division

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

In the wild-type leaf epidermis, FAMA�GFP was ... not in meristemoids

Pillitteri LJ, Sloan DB, Bogenschutz NL, Torii KU - Termination of asymmetric cell division and differentiation of stomata

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  • Gene expression

expression patterns of endogenous ... KRP4 transcripts were examined in non-transformed Ler plants ... KRP4 was detected in the SAM

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

expression patterns of endogenous KRP1/ICK1 ... transcripts were examined in non-transformed Ler plants. We did not detect significant expression of KRP1/ICK1 beyond the level of the sense control, perhaps due to its uniform expression in vacuolated, mature cells

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

AtML1∷KRP4 transgenic lines, cells in the inner layers did not exhibit high accumulation of ... KRP4 beyond the levels of endogenous transcripts

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

During leaf development ... expression of AtML1∷KRP1/ICK1 ... was observed in the adaxial epidermis

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

AtML1∷KRP1/ICK1 ... transgenic lines, cells in the inner layers did not exhibit high accumulation of KRP1/ICK1 ... beyond the levels of endogenous transcripts

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

During leaf development ... expression of AtML1∷KRP1/ICK1 ... was observed ... in the abaxial epidermis

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

During leaf development ... expression of ... AtML1∷KRP4 was observed in the adaxial epidermis

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

no difference was observed in CLV3 expression levels ... between transgenic and Ler plants

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

We ... investigated expression patterns in the transgenic plants expressing ... AtML1∷KRP4 ... L1-layer-specific accumulation of ... KRP4 transcripts was detected in the SAM

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

We ... investigated expression patterns in the transgenic plants expressing AtML1∷KRP1/ICK1 ... L1-layer-specific accumulation of KRP1/ICK1 ... transcripts was detected in the SAM

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

no difference was observed in CLV3 expression ... patterns between transgenic and Ler plants

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

We ... investigated expression patterns in the transgenic plants expressing AtML1∷KRP1/ICK1 ... L1-layer-specific accumulation of KRP1/ICK1 ... transcripts was detected in the ... leaf primordia

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

During leaf development ... expression of ... AtML1∷KRP4 was observed ... in the abaxial epidermis

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

no difference was observed in CLV3 ... expression levels ... between transgenic and Ler plants

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

no difference was observed in CLV3 expression ... patterns between transgenic and Ler plants

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

We ... investigated expression patterns in the transgenic plants expressing ... AtML1∷KRP4 ... L1-layer-specific accumulation of ... KRP4 transcripts was detected in the ... leaf primordia

Bemis SM, Torii KU - Autonomy of cell proliferation and developmental programs during Arabidopsis aboveground organ morphogenesis

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  • Gene expression

Two upregulated genes were involved in callose synthesis during cell plate formation: ENDOXYLOGLUCAN TRANSFERASE (DECOY) and CALLOSE SYNTHASE1, both of which are implicated in cell wall/cell plate formation (Table 3 ... in hub1-1

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Other categories downregulated in hub1-1 comprised genes involved in carboxylic acid metabolism, fatty acid metabolism, lipid biosynthesis, vitamin biosynthesis, cofactor biosynthesis, chlorophyll biosynthesis, transfer RNA metabolism, photosynthesis, and protein targeted to chloroplast

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

the E2F dimerization partner (DPa) transcription factor gene were upregulated ... in hub1-1

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

some overex- pressed genes in hub1-1 were related to meristem development, such as the homeodomain genes ... SHOOT MERISTEMLESS

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

the analysis of upregulated genes also identified GO categories related to cytokinesis ... in hub1-1

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

A significantly high number of genes differentially ex- pressed in hub1-1 were related to cell cycle (24 genes) and cytokinesis (31 genes)

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Among the downregulated genes in hub1-1, cell fate specifi- cation, histone phosphorylation, regulation of progression through cell cycle, mitotic cell cycle, and microtubule-based movement genes were significantly overrepresented. For cellular compo- nents, the underexpressed genes in hub1-1 were significantly related to myosin, spindle, microtubule, and phragmoplast (data not shown). Among the 82 genes with a peak expression in mitosis (Menges et al., 2005), 66 were significantly downregulated in the hub1-1 mutant, of which 37 genes had a known function in mitosis

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Two upregulated genes were involved in callose synthesis during cell plate formation: ENDOXYLOGLUCAN TRANSFERASE (DECOY) and CALLOSE SYNTHASE1, both of which are implicated in cell wall/cell plate formation (Table 3 ... in hub1-1

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

the SIAMESE (SIM) gene, with a function in endoreduplication during trichome formation on leaves ... upregulated ... in hub1-1

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

some overex- pressed genes in hub1-1 were related to meristem development, such as the homeodomain genes ... KNAT6

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

A total of 13 homeotic genes had an altered expression in hub1-1, among which were two SNF2 pro- teins (At3g63950 and At1g05480)

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

some overex- pressed genes in hub1-1 were related to meristem development, such as the homeodomain genes KNOTTED1-LIKE2 (KNAT2)

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Of the cytokinesis-related genes, 26 kinesins or kinesin-like genes and genes related to microtubule and myosin were downregulated in hub1-1, among which are the kinesins ... TETRASPORE (NACK2)

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

some overex- pressed genes in hub1-1 were related to meristem development, such as ... 12 NO APICAL MERI- STEM genes

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Of the cytokinesis-related genes, 26 kinesins or kinesin-like genes and genes related to microtubule and myosin were downregulated in hub1-1, among which are the ... syntaxin (KNOLLE)

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

A total of 13 homeotic genes had an altered expression in hub1-1, among which ... a BRAHMA-like protein (At3g06010) of the Polycomb group of proteins in fruitfly (Dro- sophila melanogaster

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Of the cytokinesis-related genes, 26 kinesins or kinesin-like genes and genes related to microtubule and myosin were downregulated in hub1-1, among which are the ... MAP63-3 (PLEIADE)

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Of the cytokinesis-related genes, 26 kinesins or kinesin-like genes and genes related to microtubule and myosin were downregulated in hub1-1, among which are the kinesins HINKEL (NACK1)

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Biological processes, such as response to stress, proton trans- port, cell redox homeostasis, hexose metabolism, cellular respi- ration, and cofactor catabolism, were significantly overexpressed in hub1-1

Fleury D, Himanen K, Cnops G, Nelissen H, Boccardi TM, Maere S, Beemster GT, Neyt P, Anami S, Robles P, Micol JL, Inzé D, Van Lijsebettens M - The Arabidopsis thaliana homolog of yeast BRE1 has a function in cell cycle regulation during early leaf and root growth

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  • Gene expression

Real time PCR experiments ... in trn2-2 3010 mutant ... did not substantiate a change in WUS transcripts

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

STM promoter activity ... increased ... in line 3010

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

trn2-2 ... mutant meristem ... CLV3 ... expression ... show no major differences in size or position relative to wild type

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

trn2-2 ... mutant meristem ... WUS expression ... show no major differences in size or position relative to wild type

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

a comparison between trn2-2 3010 seedlings and wild type controls ... shows no significant difference in LFY transcriptional activity in the vegetative SAM

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

TRN2 transcriptional activity was detected in all types of meristems

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

STM transcript levels in trn2-2 3010 mutant seedlings ... 4-fold increase

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

TRN2 transcripts in leaf primorida are preferentially found in vascular strands

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

TRN2 transcripts in leaf primorida are preferentially found ... at the distal tip of the leaflet

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

nor quantification of the STM RNA suggests there are significant quantitative changes in STM expression between mutant and wild type inflorescences

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

TRN2 ... transcripts are ... detectable in lateral organ primordia

Chiu WH, Chandler J, Cnops G, Van Lijsebettens M, Werr W - Mutations in the TORNADO2 gene affect cellular decisions in the peripheral zone of the shoot apical meristem of Arabidopsis thaliana

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  • Gene expression

Loss of SKB1 downregulated ... FT

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Consistent with the protein expression pattern, SKB1 RNA was more abundant in shoot apex

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Loss of SKB1 downregulated ... SOC1

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Loss of SKB1 ... upregulated ... EMF2

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

SKB1 protein levels were weakly increased with plant age under short-day condition

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Loss of SKB1 downregulated LFY

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

skb1 mutants and wild-type plants did not show a significant difference in transcript levels of ... CO

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Western blotting results showed that SKB1 was highly expressed in flowers, roots and siliques, but less so in stems and mature leaves

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

The expression of the flowering repressor gene FLC, however, was significantly upregulated in skb1-1 mutant plants

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

skb1 mutants and wild-type plants did not show a significant difference in transcript levels of GI

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Loss of SKB1 ... upregulated ... TFL1

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

The expression of LD, in the autonomous pathway upstream of FLC (He and Amasino, 2005), did not differ between skb1-1 and wild-type plants

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

skb1 mutants and wild-type plants did not show a significant difference in transcript levels of ... VRN2

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

skb1 mutants and wild-type plants did not show a significant difference in transcript levels of ... VRN1

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Loss of SKB1 ... upregulated EMF1

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

SKB1 protein levels were ... slightly decreased with age under long-day conditions

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Consistent with the protein expression pattern, SKB1 RNA was more abundant in ... leaf primordia

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Consistent with the protein expression pattern, SKB1 RNA was more abundant in ... young leaves

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

skb1 mutants and wild-type plants did not show a significant difference in transcript levels of ... SPY

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

Consistent with the protein expression pattern, SKB1 ... expressed ... not as much in older leaves

Wang X, Zhang Y, Ma Q, Zhang Z, Xue Y, Bao S, Chong K - SKB1-mediated symmetric dimethylation of histone H4R3 controls flowering time in Arabidopsis

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  • Gene expression

P35S:GFP:PARL1 ... nuclear fluores- cence was most strongly localized to a subnuclear re- gion, presumably the nucleolus

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

When the P35S:GFP:PARL1 con- struct was viewed in the same cells under UV illumi- nation, nuclear fluorescence was observed in cotyledon (Fig. 5K) and leaf (Fig. 5N) cells

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

In young leaf primor- dia PPARL1:GUS expression was initially strong and ubiquitous (Fig. 5, D and F), whereas later expression was restricted to the leaf tip and developing vascular cells

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

In parl1 mutant leaves, DR5:GUS expression was initially correctly localized in the tip at comparable stages, suggesting the incipient midvein pattern was normal

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

PARL1 was expressed ... ubiqui- tously throughout the globular stage embryo

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

As auxin response was disrupted in parl1 leaves, we wanted to investigate the role of auxin transport in parl1/DR5:GUS expressing leaves. In wild-type leaves, the inhibition of PAT by naphthylphthalamic acid (NPA) and similar inhibitors leads to restriction of DR5:GUS expression to the leaf margins, possibly re- flecting the accumulation of auxin in these regions (Fig. 6, N and P; Mattsson et al., 2003). Subsequent venation is restricted to the leaf margins. In agreement with this previous report, 1 mM NPA treatment of wild- type plants restricted DR5:GUS expression to the leaf margin (Fig. 6, N and P; Mattsson et al., 2003). In con- trast, this marginal expression was absent in 1 mM NPA-treated leaves of the parl1 mutant (compare Fig. 6, N and P with Fig. 6, O and Q). Thus the expression pattern of DR5:GUS was similar in both NPA-treated and -untreated parl1 leaves

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

Expression of the PPARL1:GUS construct was enriched in vascular cells throughout the seedling and was vascular spe- cific in cotyledons

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

Athb8:GUS is a re- porter line that marks cells in the provascular stage of development before lignification is observed and is one of the earliest characterized reporters for vein de- velopment (Baima et al., 1995; Kang and Dengler, 2002; Scarpella et al., 2004, 2006). In wild-type plants, ex- pression of this reporter was initially visible in both wild-type and the parl1/Athb8:GUS line leaf primor- dia as a single file of expression that extended from the petiole to the tip of leaf blade, marking cells that later differentiate into the midvein (Fig. 6A, inset). Next, as previously reported, two pairs of expression traces connecting to the central line in high-arching loops were observed in the Athb8:GUS line that mark cells destined to become secondary vein loops (Fig. 6A). While parl1 mutants resembled the wild type for early midvein expression, in subsequent stages multiple traces of Athb8:GUS expression extended from the petiole into the leaf primordia, and often ended freely (Fig. 6B). This expression pattern change continued with subsequent vein initiation in parl1 (Fig. 6D). In wild-type plants, the expression of Athb8:GUS marked the closed, interconnected vein pattern observed in normal leaves at later stages of development and expansion (Fig. 6C). However, parl1 at this same stage displayed an Athb8:GUS expression pattern that was unconnected and consisted of freely ending parallel veins

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

This apparently normal tip expression of DR5 persisted into the next stage, when subsequent veins were initiated. How- ever, parl1 mutants failed to show DR5:GUS expres- sion in apical loops, as is observed in wild type (Fig. 6J) and subsequently failed to differentiate veins in apical loops. At the next stage and subsequent stages, the persistent tip expression typical of DR5:GUS in wild- type leaves was drastically mislocalized in parl1 leaves of comparable stages (compare Fig. 6, K–M with Fig. 6, G and H). In the mutant, expression ceased at the tip, and ectopic DR5:GUS expression appeared in one or two foci offset from the tip. This mislocalization was observed at 9 d after germination (DAG) in 66% (n 5 502) and at 10 DAG in 86% (n 5 349) of parl1/DR5:GUS leaves and never (7 DAG, n 5 178; 8 DAG, n 5 274) in the wild type

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

Further analysis of the PPARL1: GUS construct in other tissues revealed expression of the PARL1 gene in regions associated with cell divi- sion (root and leaf tips) as well as in vascular cells of roots and flowers

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

PARL1 ... ubiquitous GUS expression was also observed later in ... globular ... stages of embry- onic development

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

PARL1 ... ubiquitous GUS expression was also observed later in ... the ... heart stages of embry- onic development

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

In young leaf primor- dia PPARL1:GUS expression was initially strong and ubiquitous

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

In young leaf primor- dia PPARL1:GUS expression was initially strong and ubiquitous (Fig. 5, D and F), whereas later expression was restricted to the leaf tip and developing vascular cells

Petricka JJ, Nelson TM - Arabidopsis nucleolin affects plant development and patterning

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... The group of repressed auxin signaling genes includes the AUX/IAA repressors ... IAA29

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

the promoter:GUS constructs for VFB1 ... showed strong GUS staining in many plant tissues, including the vascular system, leaves, flowers, and roots

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... The group of repressed auxin signaling genes includes the AUX/IAA repressors ... IAA3 (SHORT HYPOCOTYL2 [SHY2])

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... The group of repressed auxin signaling genes includes the AUX/IAA repressors ... IAA6

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... The group of repressed auxin signaling genes includes the AUX/IAA repressors ... IAA19 (MASSUGU2 [MSG2])

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

35S:VFB2:GFP ... and 35S:YFP:VFB2 localize to the cytoplasm when expressed in a transient manner in Arabidopsis protoplasts ... Similarly, a VFB2 promoter (2-kb fragment)–driven VFB2:GFP fusion protein also localized predominantly to the cytoplasm (data not shown

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

VFB2 ... also seem to be expressed in the cotyledons of bent cotyledon stage embryos but not at earlier stages of embryo development

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

the promoter:GUS constructs for ... VFB2 ... showed strong GUS staining in many plant tissues, including the vascular system, leaves, flowers, and roots

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

35S:VFB4:GFP ... localize to the cytoplasm when expressed in a transient manner in Arabidopsis protoplasts

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

VFB4 also seem to be expressed in the cotyledons of bent cotyledon stage embryos but not at earlier stages of embryo development

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... In agreement with previous reports, we detected DR5:GUS staining in the leaf margins, at sites of lateral root initiation, and in the root tips of wild-type seedlings. Interestingly, the staining at these sites was reduced in the vfb mutant background, suggesting—in agreement with our microaray data—that auxin-responsive gene expression is impaired in the vfb mutant background

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... The group of repressed auxin signaling genes includes the AUX/IAA repressors ... IAA5

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... The group of repressed auxin signaling genes includes the AUX/IAA repressors ... IAA2

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

in the vfb1-1 vfb2-1 vfb3-1 vfb4-1 (RNAi) mutants ... The group of repressed auxin signaling genes includes the AUX/IAA repressors IAA1 (AXR5)

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

the promoter:GUS constructs for ... VFB4 showed strong GUS staining in many plant tissues, including the vascular system, leaves, flowers, and roots

Schwager KM, Calderon-Villalobos LI, Dohmann EM, Willige BC, Knierer S, Nill C, Schwechheimer C - Characterization of the VIER F-BOX PROTEINE genes from Arabidopsis reveals their importance for plant growth and development

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  • Gene expression

We found that, in 4-day-old seedlings, AtOFP1prom:GUS was expressed mainly in the roots and lower part of hypocotyls, but not in root hairs, lateral root primordium or shoot (Figure 5a). AtOFP1prom:GUS was still expressed in the roots of 10-day-old seedlings including root hair (Figure 5b), but unlike the 4-day-old seedlings, it was also expressed in shoots, vasculatures and trichomes

Wang S, Chang Y, Guo J, Chen JG - Arabidopsis Ovate Family Protein 1 is a transcriptional repressor that suppresses cell elongation

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  • Gene expression

By using these transgenic plants, we found that AtOFP1 is predominantly localized in the nucleus ... In a transient expression system using protoplasts derived from Arabidopsis rosette leaves, we also observed a nuclear-localized AtOFP1–GFP fusion protein when the 35S promoter was used to drive AtOFP1–GFP expression (Figure 5h), which is largely consistent with the results reported by Hackbusch et al. (2005), except that we did not observe a significant association of AtOFP1–GFP with the cytoskeleton

Wang S, Chang Y, Guo J, Chen JG - Arabidopsis Ovate Family Protein 1 is a transcriptional repressor that suppresses cell elongation

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  • Gene expression

We found that, in 4-day-old seedlings, AtOFP1prom:GUS was expressed mainly in the roots and lower part of hypocotyls, but not in root hairs, lateral root primordium or shoot (Figure 5a). AtOFP1prom:GUS was still expressed in the roots of 10-day-old seedlings including root hair (Figure 5b), but unlike the 4-day-old seedlings, it was also expressed in shoots, vasculatures and trichomes

Wang S, Chang Y, Guo J, Chen JG - Arabidopsis Ovate Family Protein 1 is a transcriptional repressor that suppresses cell elongation

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  • Gene expression

we found AtOFP1 transcript in the roots of young seedlings and both roots and shoots of relatively old seedlings

Wang S, Chang Y, Guo J, Chen JG - Arabidopsis Ovate Family Protein 1 is a transcriptional repressor that suppresses cell elongation

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  • Gene expression

We found that, in 4-day-old seedlings, AtOFP1prom:GUS was expressed mainly in the roots and lower part of hypocotyls, but not in root hairs, lateral root primordium or shoot (Figure 5a). AtOFP1prom:GUS was still expressed in the roots of 10-day-old seedlings including root hair (Figure 5b), but unlike the 4-day-old seedlings, it was also expressed in shoots, vasculatures and trichomes

Wang S, Chang Y, Guo J, Chen JG - Arabidopsis Ovate Family Protein 1 is a transcriptional repressor that suppresses cell elongation

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  • Gene expression

Transgenic plants were generated carrying the GUS reporter gene driven by a 2.2 kb BEN1 promoter to examine tissue-specific expression patterns of BEN1 ... In mature rosette leaves, GUS expression was seen mainly in ... hydathodes

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

the expression of BEN1 is indeed significantly downregulated in darkness

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

BAS1 was significantly downregulated ... in ben1-1D mutant plants, compared to wild-type plants

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

Transgenic plants were generated carrying the GUS reporter gene driven by a 2.2 kb BEN1 promoter to examine tissue-specific expression patterns of BEN1 ... In mature rosette leaves, GUS expression was seen mainly in vascular tissues

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

RT-PCR results also showed that BEN1 transcripts can be detected in all major organs tested, with the strongest signals detected in roots and siliques

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

CPD is downregulated when BR levels are increased

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

The subcellular localization revealed using bri1-5 35S-BEN1–GFP should thus represent the real in vivo site of the BEN1 protein. Confocal analyses indicated that BEN1 is a cytoplasmic protein

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

RT-PCR analyses also indicated that the expression of BEN1 in wild-type plants cannot be significantly regulated by exogenously applied BL

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

BAS1 is upregulated in response to exogenously elevated BR levels

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

CPD was significantly upregulated in ben1-1D mutant plants, compared to wild-type plants

Yuan T, Fujioka S, Takatsuto S, Matsumoto S, Gou X, He K, Russell SD, Li J - BEN1, a gene encoding a dihydroflavonol 4-reductase (DFR)-like protein, regulates the levels of brassinosteroids in Arabidopsis thaliana

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  • Gene expression

We performed in situ hybridization in order to detect AS2 transcripts in plantlets. In transverse and longitudinal sections of 12-day-old plants, we detected relatively weak signals due to AS2 transcripts in the region of the predicted leaf primordium (P0) and in early detectable primordia (P1 and P2) (Figure 1a–f,r

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for ... YAB2

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

We obtained five independent transgenic lines that harbored pAS2::GUS and all yielded essentially the same pattern of expression of GUS activity ... we detected GUS activity on the adaxial sides of ... leaves

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of transcripts of the BP/KNAT1 ... increased in the as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for ... KAN3

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for ... PHB

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for ... REV

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ETT/ARF3 ... decreased in the as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for ... REV

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

AS1 transcripts ... In more developed primordia (after P8), we detected signals in ... the vasculature

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... KAN2 ... increased in the ... as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

the level of ARF4 did not clearly increase in as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for ... YAB3

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for ... YAB2

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for ... YAB3

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

AS1 transcripts ... As primordia grew (P4–P6), we detected strong signals in the central region between the adaxial and abaxial domains (Figure 1l,m). The

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ETT/ARF3 ... increased in the as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of ARF2 transcripts were not affected by ... as2

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... KAN2 ... decreased in the as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

The level of FIL transcripts ... did not clearly increase in as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... class 1 KNOX genes, increased in the as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for ... KAN3

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... class 1 KNOX genes ... decreased in the as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of ARF2 transcripts were not affected by ... as1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for ... PHV

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... KAN2 ... increased in the as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

We obtained five independent transgenic lines that harbored pAS2::GUS and all yielded essentially the same pattern of expression of GUS activity ... When leaves had developed (21-day-old plants), we detected GUS activity over the entire adaxial surface of leaves

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ETT/ARF3 ... increased in the ... as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

The level of FIL transcripts ... decreased in the as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

We obtained five independent transgenic lines that harbored pAS2::GUS and all yielded essentially the same pattern of expression of GUS activity ... we detected GUS activity on the adaxial sides of cotyledons

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

We obtained eight independent pAS1::GUS transgenic lines and detected GUS activity mainly in inner tissues, which included the vascu- lature of leaves, hypocotyls and roots

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of transcripts of the BP/KNAT1 ... decreased in as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

The level of FIL transcripts increased in as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

We obtained five independent transgenic lines that harbored pAS2::GUS and all yielded essentially the same pattern of expression of GUS activity ... The activity in cotyledons and leaves disappeared as the leaves grew further

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... YAB5 ... increased in the ... as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

In P0– P3, we detected weak signals due to AS1 in entire primordia

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for KAN1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... YAB5 ... increased in the as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... YAB5 ... decreased in the as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of transcripts of the ... KNAT6 ... decreased in as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

AS1 transcripts ... In more developed primordia (after P8), we detected signals in both the vasculature and lateral regions

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for KAN1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

AS1 transcripts were clearly evident in the inner tissues of leaves (Figure 1l,m), as reported by Byrne et al. (2000

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

the level of ARF4 ... decreased in the as2-1/pAS1::AS2#4 plants

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

The level of ARF4 transcripts increased in as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of transcripts of the ... KNAT6 ... increased in the ... as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

level of transcripts of the ... class 1 KNOX genes, increased in the ... as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for ... PHV

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of transcripts of the ... KNAT6 ... increased in the as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as1-1 ... No significant differences in levels of transcripts were detected for ... KAN4

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for ... PHB

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

in as2-1 ... No significant differences in levels of transcripts were detected for ... KAN4

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

The level of the KNAT2 gene transcript was not clearly altered in shoot apices of as2-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

Levels of transcripts of the BP/KNAT1 ... increased in the ... as1-1

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

We performed in situ hybridization in order to detect AS2 transcripts in plantlets ... When primordia had developed, we detected stronger signals in the adaxial region, including the epidermis of leaf primordia. However, weak signals were also evident in the inner region (P3–P9; Figure 1a–f

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

We obtained eight independent pAS1::GUS transgenic lines ... When leaves had developed (24-day-old plants), GUS signals in the vasculature of cotyledons and leaves became weaker, as previously shown by RT-PCR (Figure 1p) (Chua et al., 2005)

Iwakawa H, Iwasaki M, Kojima S, Ueno Y, Soma T, Tanaka H, Semiarti E, Machida Y, Machida C - Expression of the ASYMMETRIC LEAVES2 gene in the adaxial domain of Arabidopsis leaves represses cell proliferation in this domain and is critical for the development of properly expanded leaves

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  • Gene expression

pANT::GUS ... GUS activity was seen throughout very young leaves at Day 0

Kang J, Mizukami Y, Wang H, Fowke L, Dengler NG - Modification of cell proliferation patterns alters leaf vein architecture in Arabidopsis thaliana

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  • Gene expression

pANT::GUS ... GUS activity ... declined basipetally in the leaf blades at Day 4

Kang J, Mizukami Y, Wang H, Fowke L, Dengler NG - Modification of cell proliferation patterns alters leaf vein architecture in Arabidopsis thaliana

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  • Gene expression

Cross sections of the leaf revealed that pANT::GUS expression was seen in procambial cells prior to vascular differentiation (Fig. 2b), remained in procambial cells during vein differentiation (Fig. 2b asterisks), and declined as procambial cells differentiated into xylem and phloem

Kang J, Mizukami Y, Wang H, Fowke L, Dengler NG - Modification of cell proliferation patterns alters leaf vein architecture in Arabidopsis thaliana

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  • Gene expression

pANT::GUS ... GUS activity ... remained high in developing veins through to Day 8

Kang J, Mizukami Y, Wang H, Fowke L, Dengler NG - Modification of cell proliferation patterns alters leaf vein architecture in Arabidopsis thaliana

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  • Gene expression

the number of cells accumulating CYCB1;1::GUS in the apical half of leaves was similar to that in wild-type leaves at Day 0, there appeared to be fewer GUS expressing cells in ant-1 leaves by Day 4 compared to wild-type leaves at the same stage

Kang J, Mizukami Y, Wang H, Fowke L, Dengler NG - Modification of cell proliferation patterns alters leaf vein architecture in Arabidopsis thaliana

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  • Gene expression

pANT::GUS expression in procambial cells disappeared after leaf maturation (data not shown)

Kang J, Mizukami Y, Wang H, Fowke L, Dengler NG - Modification of cell proliferation patterns alters leaf vein architecture in Arabidopsis thaliana

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  • Gene expression

In 35S::ICK1 leaves, CYCB1;1::GUS accumulation was sharply reduced in comparison to wild-type at all stages, reflecting a repression of cell proliferation throughout leaf development

Kang J, Mizukami Y, Wang H, Fowke L, Dengler NG - Modification of cell proliferation patterns alters leaf vein architecture in Arabidopsis thaliana

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  • Gene expression

mRNA level of FLOWERING LOCUS K (FLK), a component of autonomous pathway, was increased by 2-fold ... in atprmt5 mutants as compared to wild-type

Pei Y, Niu L, Lu F, Liu C, Zhai J, Kong X, Cao X - Mutations in the Type II protein arginine methyltransferase AtPRMT5 result in pleiotropic developmental defects in Arabidopsis

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  • Gene expression

Expression of FLC was dramatically increased due to mutations in AtPRMT5

Pei Y, Niu L, Lu F, Liu C, Zhai J, Kong X, Cao X - Mutations in the Type II protein arginine methyltransferase AtPRMT5 result in pleiotropic developmental defects in Arabidopsis

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  • Gene expression

due to mutations in AtPRMT5 ... expression of SUPPRESSOR OF OVEREXPRESSION OF CO1 (SOC1)/AGAMOUS-LIKE20, a floral integrator downstream of FLC, was greatly reduced

Pei Y, Niu L, Lu F, Liu C, Zhai J, Kong X, Cao X - Mutations in the Type II protein arginine methyltransferase AtPRMT5 result in pleiotropic developmental defects in Arabidopsis

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  • Gene expression

mRNA level of ... ARP6 (ACTIN-RELATED PROTEIN6), an activator of FLC, was decreased by 2-fold in atprmt5 mutants as compared to wild-type Col

Pei Y, Niu L, Lu F, Liu C, Zhai J, Kong X, Cao X - Mutations in the Type II protein arginine methyltransferase AtPRMT5 result in pleiotropic developmental defects in Arabidopsis

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  • Gene expression

FIL transcripts were likewise detected on the adaxial side of ... bop1 bop2 as1 ... differentiated leaves but with the expression in the more central region of the leaf

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In ... as1 ... FIL transcripts are detected in the correct abaxial domain ... of initiating and young leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

AS1 expression levels were unchanged in ... 35S:BOP1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

in 8-d-old 35S:BOP1 seedlings ... we could not detect a significant change in the expression levels of ... KAN1

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHV expression ... can be observed on the adaxial side of the differentiated leaves of bop1 bop2

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Developing young leaves of bop1 bop2 ... exhibited PHV expression in the normal adaxial domain

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In lob plants, the lob:ET22 enhancer trap drove GUS reporter gene expression at the shoot apex, in the hypocotyl, at the base of all lateral organs, and in the roots

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

The expression levels of ... KNAT6 ... were significantly increased in bop1-4 bop2-11 seedlings

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

more mature bop1 bop2 ... leaves exhibited ectopic FIL transcription in the adaxial domain

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

no FIL expression was detected in ... as1 ... differentiated leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

we could not detect a significant change in the expression levels of FIL ... in ... bop1-4 bop2-11 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

FIL transcripts were likewise detected on the adaxial side of bop1 bop2 as2 ... differentiated leaves but with the expression in the more central region of the leaf

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

The expression levels of ... KNAT2 ... were significantly increased in bop1-4 bop2-11 seedlings

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

The domain of PHV expression is unaltered in ... as1 seedlings

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

LBD36/ASL1 transcript levels were elevated in 35S:BOP1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

in ... bop1 bop2 as1 ... plants, FIL expression was detected on the abaxial side of initiating and young leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

LBD36/ASL1 transcript levels were elevated in ... 35S:BOP2 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

in bop1 bop2 ... plants, FIL expression was detected on the abaxial side of initiating and young leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

we could not detect a significant change in the expression levels of FIL ... in ... bop2-11 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

AS1 transcript levels were slightly elevated in ... bop1-4 bop2-11 plants compared with the wild type

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHV expression is not detected in the differentiated leaves of ... as1

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

we found that PHB transcription was slightly upregulated ... in the developing young leaves of 22-d-old 35S:BOP1 leaves compared with wild-type leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In as2 ... FIL transcripts are detected in the correct abaxial domain ... of initiating and young leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

The expression levels of BP ... were significantly increased in bop1-4 bop2-11 seedlings

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

in ... bop1 bop2 kan1 kan2 plants, FIL expression was detected on the abaxial side of initiating and young leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

KAN1 transcription was slightly reduced in the developing young leaves of 22-d-old 35S:BOP1 leaves compared with wild-type leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

more mature ... bop1 bop2 as1 ... leaves exhibited ectopic FIL transcription in the adaxial domain

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

AS1 expression levels were unchanged in ... 35S:BOP2 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

we could not detect a significant change in the expression levels of ... KAN1 ... in bop1-4

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

AS2 transcript levels were also reduced in bop1-1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Expression levels of ... AS2 ... were highly upregulated in 35S:BOP1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Developing young leaves of ... bop1 bop2 as1 ... exhibited PHV expression in the normal adaxial domain

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

AS1 transcript levels were slightly elevated in bop1-1 ... plants compared with the wild type

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

no FIL expression was detected in as2 ... differentiated leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

LBD36/ASL1 transcript levels ... were reduced in bop1-1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

we could not detect a significant change in the expression levels of FIL ... in bop1-4

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

lob:ET22 GUS ... We also detected ectopic GUS activity broadly across the blade region of 35S:BOP1 leaves ... a pattern that was not observed in lob leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

we could not detect a significant change in the expression levels of ... KAN1 ... in ... bop2-11 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHV expression ... can be observed on the adaxial side of the differentiated leaves of ... bop1 bop2 as1 ... Furthermore, PHV was expressed more centrally in ... bop1 bop2 as1 ... leaves than in bop1 bop2 leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

The differentiated leaves of bop1 bop2 plants exhibited FIL expression on the adaxial side of the primordial ectopic organ outgrowths (Figure 8P, arrows), while FIL transcripts were not detected in differentiated leaves of Col plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Expression levels of ... LOB were highly upregulated in 35S:BOP1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In kan1 kan2 seedlings, PHV expression is detected throughout the leaf primordia, but a stronger signal is observed on the adaxial side than on the abaxial side (Figure 9D), suggesting that these organs still maintain some residual asymmetry

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In bop1-4 bop2-11 plants containing lob:ET22, GUS expression was observed in the shoot apex but more weakly than in lob plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Expression levels of ... LOB were highly upregulated in ... 35S:BOP2 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

in bop1 bop2 leaves, KAN1 expression is detected in the adaxial region in the area in which the ectopic organ outgrowths develop

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

in ... bop1 bop2 as2 ... plants, FIL expression was detected on the abaxial side of initiating and young leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

FIL transcripts were likewise detected on the adaxial side of ... bop1 bop2 kan1 kan2 differentiated leaves but with the expression in the more central region of the leaf

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHB is one of the class III HD-ZIP genes that specify adaxial cell fate, and its steady state transcript levels were increased in 8-d-old 35S:BOP1 seedlings compared with wild-type seedlings

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

LOB expression was decreased in ... bop1-4 bop2-11 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

no FIL expression was detected in ... kan1 kan2 differentiated leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Expression levels of ... AS2 ... were highly upregulated in ... 35S:BOP2 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Developing young leaves of ... bop1 bop2 as2 ... exhibited PHV expression in the normal adaxial domain

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHB ... we could not detect a significant change in the expression levels ... in ... bop1-4 bop2-11 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

The domain of PHV expression is unaltered in as2 ... seedlings

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

in 8-d-old 35S:BOP1 seedlings ... we could not detect a significant change in the expression levels of FIL

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

AS2 transcript levels were also reduced in ... bop1-4 bop2-11 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

more mature ... bop1 bop2 kan1 kan2 leaves exhibited ectopic FIL transcription in the adaxial domain

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

BP mRNA levels were reduced in the shoots of 25-d-old 35S:BOP1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

ectopic expression of BOP1 resulted in ... expanded lob:ET22 GUS expression in the shoot apex

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

more mature ... bop1 bop2 as2 ... leaves exhibited ectopic FIL transcription in the adaxial domain

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

Developing young leaves of ... bop1 bop2 kan1 kan2 seedlings exhibited PHV expression in the normal adaxial domain (Figures 9I to 9L). However, in bop1 bop2 kan1 kan2 leaves, PHV expression is restricted to a smaller area of the adaxial domain than in kan1 kan2 leaves (Figures 9D and 9L, arrow). This result indicates that, whereas the young leaves of kan1 kan2 plants have adaxialized organ identity, the young leaves of quadruple mutant plants acquire abaxialized organ identity, which is consistent with histological data

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHV expression is not detected in the differentiated leaves of ... kan1 kan2 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In lob plants, the lob:ET22 enhancer trap drove GUS reporter gene expression at the shoot apex

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

ectopic expression of BOP1 resulted in increased ... lob:ET22 GUS expression in the shoot apex

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHV expression is not detected in the differentiated leaves of ... as2

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHB ... we could not detect a significant change in the expression levels ... in ... bop2-11

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHV expression ... can be observed on the adaxial side of the differentiated leaves of ... bop1 bop2 kan1 kan2 plants ... Furthermore, PHV was expressed more centrally in ... bop1 bop2 kan1 kan2 leaves than in bop1 bop2 leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

we could not detect a significant change in the expression levels of ... KAN1 ... in ... bop1-4 bop2-11 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

LOB expression was decreased in bop1-1 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

BP mRNA levels were reduced in the shoots of 25-d-old ... 35S:BOP2 plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

FIL ... transcription was slightly reduced in the developing young leaves of 22-d-old 35S:BOP1 leaves compared with wild-type leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHB ... we could not detect a significant change in the expression levels ... in bop1-4 ... plants

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In bop1-1 plants containing lob:ET22, we could not detect GUS gene activity in the shoot apex

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

PHV expression ... can be observed on the adaxial side of the differentiated leaves of ... bop1 bop2 as2 ... Furthermore, PHV was expressed more centrally in bop1 bop2 as2 ... leaves than in bop1 bop2 leaves

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

In ... kan1 kan2 ... FIL transcripts are detected in the correct abaxial domain ... of initiating and young leaf primordia

Ha CM, Jun JH, Nam HG, Fletcher JC - BLADE-ON-PETIOLE 1 and 2 control Arabidopsis lateral organ fate through regulation of LOB domain and adaxial-abaxial polarity genes

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  • Gene expression

The abundance of AXL mRNA was extremely low compared with AXR1 mRNA (data not shown). Although AXL RNA was detected in all the tissue types examined, root tissues showed the highest RNA abundance. However, at least 50 PCR cycles were required to obtain a band detectable by standard agarose gel electrophoresis. The relatively low level of expression of AXL in all tissues is also confirmed by microarray analysis

Dharmasiri N, Dharmasiri S, Weijers D, Karunarathna N, Jurgens G, Estelle M - AXL and AXR1 have redundant functions in RUB conjugation and growth and development in Arabidopsis

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  • Gene expression

the level of the EBP1 mRNA was found to be around twofold ... lower in the ... AtTOR-silenced lines

Deprost D, Yao L, Sormani R, Moreau M, Leterreux G, Nicolaï M, Bedu M, Robaglia C, Meyer C - The Arabidopsis TOR kinase links plant growth, yield, stress resistance and mRNA translation

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  • Gene expression

A higher expression of the AtEBP1 gene was indeed detected in the AtTOR-overexpressing line S7817 when compared with Col0 after hybridization of CATMA arrays (urgv.evry.inra.fr/cgi-bin/projects/CATdb; D. Deprost & C. Meyer, unpublished data). These preliminary results were confirmed by quantitative real-time reverse transcriptase–PCR and the level of the EBP1 mRNA was found to be around twofold higher ... in the AtTOR-overexpressing ... lines

Deprost D, Yao L, Sormani R, Moreau M, Leterreux G, Nicolaï M, Bedu M, Robaglia C, Meyer C - The Arabidopsis TOR kinase links plant growth, yield, stress resistance and mRNA translation

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  • Gene expression

CYCD3;1 expression is restricted to the ... very young primordia

Dewitte W, Scofield S, Alcasabas AA, Maughan SC, Menges M, Braun N, Collins C, Nieuwland J, Prinsen E, Sundaresan V, Murray JA - Arabidopsis CYCD3 D-type cyclins link cell proliferation and endocycles and are rate-limiting for cytokinin responses

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  • Gene expression

CYCD3;2 ... reporters are also active in older leaf primordia

Dewitte W, Scofield S, Alcasabas AA, Maughan SC, Menges M, Braun N, Collins C, Nieuwland J, Prinsen E, Sundaresan V, Murray JA - Arabidopsis CYCD3 D-type cyclins link cell proliferation and endocycles and are rate-limiting for cytokinin responses

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  • Gene expression

CYCD3;2 expression persisting longest in young leaves

Dewitte W, Scofield S, Alcasabas AA, Maughan SC, Menges M, Braun N, Collins C, Nieuwland J, Prinsen E, Sundaresan V, Murray JA - Arabidopsis CYCD3 D-type cyclins link cell proliferation and endocycles and are rate-limiting for cytokinin responses

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  • Gene expression

earlier decline in expression of the mitotic B-type cyclin CYCB1;1 in young cycd3;1-3 leaves

Dewitte W, Scofield S, Alcasabas AA, Maughan SC, Menges M, Braun N, Collins C, Nieuwland J, Prinsen E, Sundaresan V, Murray JA - Arabidopsis CYCD3 D-type cyclins link cell proliferation and endocycles and are rate-limiting for cytokinin responses

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  • Gene expression

CYCD3;3 reporters are also active in older leaf primordia

Dewitte W, Scofield S, Alcasabas AA, Maughan SC, Menges M, Braun N, Collins C, Nieuwland J, Prinsen E, Sundaresan V, Murray JA - Arabidopsis CYCD3 D-type cyclins link cell proliferation and endocycles and are rate-limiting for cytokinin responses

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  • Gene expression

CYCD3;1 expression is restricted to the ... young hydathodes

Dewitte W, Scofield S, Alcasabas AA, Maughan SC, Menges M, Braun N, Collins C, Nieuwland J, Prinsen E, Sundaresan V, Murray JA - Arabidopsis CYCD3 D-type cyclins link cell proliferation and endocycles and are rate-limiting for cytokinin responses

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  • Gene expression

CYCD3;1 expression is restricted to the SAM

Dewitte W, Scofield S, Alcasabas AA, Maughan SC, Menges M, Braun N, Collins C, Nieuwland J, Prinsen E, Sundaresan V, Murray JA - Arabidopsis CYCD3 D-type cyclins link cell proliferation and endocycles and are rate-limiting for cytokinin responses

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  • Gene expression

RNA gel blot analysis revealed that, whereas the expression of PAL1 ... was not significantly changed in siz1-3

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

in 3-week-old plants ... SIZ1 was not expressed ... in the basal region of developing young leaves

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

For example, under control conditions, SQS2 expression in the wild type was approximately threefold higher than in siz1-3 (Figure 5, panel 2, column WT C/siz1-3 C); however, the relative fold induction of this gene by drought was comparable in the mutant and the wild type

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

in siz1-3, the CHS1 transcript accumulation was clearly lower in the mutant compared with the wild type

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

in developing adult leaves, SIZ1 expression was detected in leaf blades and petioles

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

in 3-week-old plants ... SIZ1 was not expressed, at detectable levels, in juvenile leaves

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

RNA gel blot analysis revealed that, whereas the expression of ... CHI was not significantly changed in siz1-3

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

Figure 1 shows the representative expression profile of pSIZ1-2:GUS containing 3535 bp of 5′ upstream sequences ... In 3-d-old germinating seedlings, SIZ1 was expressed in all organs except part of the hypocotyl and the basal region of the cotyledons

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

in developing adult leaves, SIZ1 expression was detected in leaf blades and petioles

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

In the second category, exemplified by HMG1, basal level expression was reduced in siz1-3 compared with the wild type

Catala R, Ouyang J, Abreu IA, Hu Y, Seo H, Zhang X, Chua NH - The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses

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  • Gene expression

RT-PCR analysis of line E1439 confirmed that expression of DWF4 was absent in these plants

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

Confocal scanning laser microscopy of the E1439 line revealed that GFP expression was tightly restricted to the epidermal cell layer at the leaf perimeter

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

our analysis revealed an accumulation of DWF4 mRNAin the epidermis of young leaf primordia

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

DWF4 transcripts ... became apparent in the vascular tissue

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

GFP expression observed in the E1439 driver line ... margin pattern is highlighted

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

DWF4::GUS reporter gene fusion under the control of the UAS promoter ... into the E1439 driver line ... Reporter gene activity was restricted to the leaf margin

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

DWF4 transcripts became more restricted to the ... abaxial epidermis

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

DWF4 transcripts became more restricted to the lateral ... epidermis

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

E1439>>DWF4 ... in situ hybridization analysis detected a low level of DWF4 transcripts only in a small group of cells around the margin of the complemented lines

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

One of the lines identified by this screen (E1439) showed restriction of GFP expression within the leaf, primarily at the margin

Reinhardt B, Hänggi E, Müller S, Bauch M, Wyrzykowska J, Kerstetter R, Poethig S, Fleming AJ - Restoration of DWF4 expression to the leaf margin of a dwf4 mutant is sufficient to restore leaf shape but not size: the role of the margin in leaf development

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  • Gene expression

MID:GUS ... Expression was found in the actively proliferating tissues of the shoot and root

Kirik V, Schrader A, Uhrig JF, Hulskamp M - MIDGET unravels functions of the Arabidopsis topoisomerase VI complex in DNA endoreduplication, chromatin condensation, and transcriptional silencing

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  • Gene expression

MID:GUS ... We also found expression in elongating hypocotyl cells and developing trichomes

Kirik V, Schrader A, Uhrig JF, Hulskamp M - MIDGET unravels functions of the Arabidopsis topoisomerase VI complex in DNA endoreduplication, chromatin condensation, and transcriptional silencing

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  • Gene expression

TSI expression is activated in the mid ... mutants

Kirik V, Schrader A, Uhrig JF, Hulskamp M - MIDGET unravels functions of the Arabidopsis topoisomerase VI complex in DNA endoreduplication, chromatin condensation, and transcriptional silencing

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  • Gene expression

We analyzed the expression of the pCYCB1;1:GUS reporter in the mid mutants (Colon-Carmona et al., 1999) and found expression not only in mitotic cells but also in differentiated cells, including cells that have endoreduplicated DNA-like trichomes and hypocotyl cells

Kirik V, Schrader A, Uhrig JF, Hulskamp M - MIDGET unravels functions of the Arabidopsis topoisomerase VI complex in DNA endoreduplication, chromatin condensation, and transcriptional silencing

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  • Gene expression

TSI expression is activated in the ... fas1 mutants

Kirik V, Schrader A, Uhrig JF, Hulskamp M - MIDGET unravels functions of the Arabidopsis topoisomerase VI complex in DNA endoreduplication, chromatin condensation, and transcriptional silencing

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  • Gene expression

In 35S:MID-YFP lines, a strong YFP fluorescence signal was found in the nuclei in different cell types, indicating that MID is a nuclear protein

Kirik V, Schrader A, Uhrig JF, Hulskamp M - MIDGET unravels functions of the Arabidopsis topoisomerase VI complex in DNA endoreduplication, chromatin condensation, and transcriptional silencing

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  • Gene expression

In addition, our real-time RT-PCR analysis revealed that several DSB-inducible genes, including ... At PARP2 ... were significantly upregulated in bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

CYCB2;1 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

We further investigated the expression pattern of At PARP2 by introducing the pPARP2:GUS construct (Babiychuk et al., 1998) into the bin4-1 background. The histochemical analysis revealed that the At PARP2 gene is normally expressed at an undetectable level (Figures 5B, 5F, 5H, 5J, and 5L). To our surprise, however, we found that the bin4 mutation induces the expression of At PARP2 predominantly in postmeristematic cells ... In addition, we detected similar ectopic expression of At PARP2 in other postproliferating tissues, including light- and dark-grown hypocotyls (Figures 5G and 5I, respectively), cotyledons (Figure 5K), mature part of roots (Figure 5M), leaf trichomes (Figure 5N), and leaf marginal cells (Figure 5O), in bin4. These results suggest that the induced transcriptional activation of DNA damage response genes is restricted to the nonproliferating cells that have undergone several endocycles

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

BIN4 promoter is active in endoreduplicating cells, including ... vascular cells (Figure 4C), elongating root cells (Figures 4E and 4H), and developing leaf trichomes

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

CYC1;4 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

BIN4 promoter ... GUS signal is also detectable in various tissues that contain proliferating cells, such as root and shoot apical meristems

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

In addition, our real-time RT-PCR analysis revealed that several DSB-inducible genes, including poly (ADP-ribose) polymerase1 (At PARP1 ... were significantly upregulated in bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

The publicly available microarray data, using synchronized Arabidopsis cell cultures (Menges et al., 2005), revealed that BIN4 is ubiquitously expressed at low levels during the mitotic cell cycle (see Supplemental Figure 5 online). This pattern of expression is similar to that of other components of the plant topo VI complex ... i.e ... TOP6B/RHL3/HYP6/BIN3

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

Indeed, we found that the BIN4:GFP (for green fluorescent protein) fusion protein, expressed under the control of a cauliflower mosaic virus 35S promoter in Arabidopsis leaf epidermal cells, is targeted to the nucleus

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

WEE1 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

CYCA1;1 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

histone H4 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

our real-time RT-PCR analyses showed that the transcript level of a G2/M-specific gene, cyclin B1;1 (CYCB1;1), was increased significantly in bin4-1

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

CYCB2;3 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

CYCB1;2 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

addition, our real-time RT-PCR analysis revealed that several DSB-inducible genes, including ... breast cancer susceptibility1 (At BRCA1) ... were significantly upregulated in bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

We examined the developmental pattern of the BIN4 promoter activity by fusing the 2-kb genomic region upstream of the BIN4 initiation codon to the β-glucuronidase (GUS) reporter gene. The histochemical analysis revealed that the BIN4 promoter is active in endoreduplicating cells, including those in young, rapidly expanding cotyledons

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

The publicly available microarray data, using synchronized Arabidopsis cell cultures (Menges et al., 2005), revealed that BIN4 is ubiquitously expressed at low levels during the mitotic cell cycle (see Supplemental Figure 5 online). This pattern of expression is similar to that of other components of the plant topo VI complex ... i.e., RHL1/HYP7

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

The publicly available microarray data, using synchronized Arabidopsis cell cultures (Menges et al., 2005), revealed that BIN4 is ubiquitously expressed at low levels during the mitotic cell cycle

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

The publicly available microarray data, using synchronized Arabidopsis cell cultures (Menges et al., 2005), revealed that BIN4 is ubiquitously expressed at low levels during the mitotic cell cycle (see Supplemental Figure 5 online). This pattern of expression is similar to that of other components of the plant topo VI complex ... i.e ... SPO11-3/RHL2/BIN5

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

CYCD4;1 ... does not appear to differ between the wild type and bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

In addition, our real-time RT-PCR analysis revealed that several DSB-inducible genes, including ... RAD51 ... were significantly upregulated in bin4

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

To further explore the spatial pattern of ectopic CYCB1;1 expression in bin4, we introduced the CYCB1;1:GUS construct (Colon-Carmona et al., 1999) into the bin4-1 background and examined the accumulation of CYCB1;1 transcripts. In the wild type, CYCB1;1 was predominantly expressed in proliferating tissues, and very little GUS signal was detected in mature tissues (Colon-Carmona et al., 1999) (Figures 7B, 7D, 7F, 7H, and 7J). We detected similar, or slightly reduced, levels of CYCB1;1 expression in the bin4 root meristems (Figure 7C), suggesting that bin4 is not greatly impaired in G2/M progression during the mitotic cell cycle. Unexpectedly, however, we found strong CYCB1;1 accumulation in nondividing cells, including those in light- and dark-grown hypocotyls (Figures 7E and 7G, respectively), cotyledons (Figure 7I), the mature part of roots (Figure 7K), leaf trichomes (Figure 7L), and leaf marginal cells

Breuer C, Stacey NJ, West CE, Zhao Y, Chory J, Tsukaya H, Azumi Y, Maxwell A, Roberts K, Sugimoto-Shirasu K - BIN4, a novel component of the plant DNA topoisomerase VI complex, is required for endoreduplication in Arabidopsis

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  • Gene expression

KLU is expressed on the flanks of the shoot meristem

Anastasiou E, Kenz S, Gerstung M, MacLean D, Timmer J, Fleck C, Lenhard M - Control of plant organ size by KLUH/CYP78A5-dependent intercellular signaling

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  • Gene expression

KLU is expressed ... at the base of developing leaves

Anastasiou E, Kenz S, Gerstung M, MacLean D, Timmer J, Fleck C, Lenhard M - Control of plant organ size by KLUH/CYP78A5-dependent intercellular signaling

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  • Gene expression

To localize KLU protein, we expressed a KLU-vYFP fusion protein under the control of the KLU promoter. The fusion protein fully complemented the klu mutant phenotype, demonstrating its functionality (Figure S2I). Intracellularly, vYFP fluorescence was detected in a ring around the nucleus and in a mesh-like pattern in the cytoplasm (Figure 4I), which is typical for ER-associated proteins

Anastasiou E, Kenz S, Gerstung M, MacLean D, Timmer J, Fleck C, Lenhard M - Control of plant organ size by KLUH/CYP78A5-dependent intercellular signaling

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  • Gene expression

When comparing the regions of KLU expression and cell division in young leaves (Figures 4A and 4B) and in petals at the stage that is most sensitive to KLU activity (Figures 4E′ and 4F′; cf. above), it is apparent that KLU is expressed outside the region of proliferation. Of note, KLU expression is still detected when cells have already ceased to proliferate (Figures 4E″ and 4F″), suggesting that it is not the downregulation of KLU expression that causes the eventual arrest of proliferation

Anastasiou E, Kenz S, Gerstung M, MacLean D, Timmer J, Fleck C, Lenhard M - Control of plant organ size by KLUH/CYP78A5-dependent intercellular signaling

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  • Gene expression

KLU is expressed ... at the boundary of the shoot and lateral organs

Anastasiou E, Kenz S, Gerstung M, MacLean D, Timmer J, Fleck C, Lenhard M - Control of plant organ size by KLUH/CYP78A5-dependent intercellular signaling

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  • Gene expression

We generated C-terminal and N-terminal GFP translational fusion genomic rescue constructs: pSEU::GFP:SEU and pSEU::SEU:GFP ... For all transformants, GFP florescence was detected in all tissues examined ... vegetative ... SAM

Azhakanandam S, Nole-Wilson S, Bao F, Franks RG - SEUSS and AINTEGUMENTA mediate patterning and ovule initiation during gynoecium medial domain development

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  • Gene expression

We generated C-terminal and N-terminal GFP translational fusion genomic rescue constructs: pSEU::GFP:SEU and pSEU::SEU:GFP ... For all transformants, GFP florescence was detected in all tissues examined ... young leaf

Azhakanandam S, Nole-Wilson S, Bao F, Franks RG - SEUSS and AINTEGUMENTA mediate patterning and ovule initiation during gynoecium medial domain development

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  • Gene expression

AtEXP3 was induced by IAA only ... in wild type seedlings

Kwon YR, Lee HJ, Kim KH, Hong SW, Lee SJ, Lee H - Ectopic expression of Expansin3 or Expansinbeta1 causes enhanced hormone and salt stress sensitivity in Arabidopsis

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  • Gene expression

AtEXPβ1 was not induced by IAA in wild type seedlings

Kwon YR, Lee HJ, Kim KH, Hong SW, Lee SJ, Lee H - Ectopic expression of Expansin3 or Expansinbeta1 causes enhanced hormone and salt stress sensitivity in Arabidopsis

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  • Gene expression

AtEXPβ1 was induced by ACC only in wild type seedlings

Kwon YR, Lee HJ, Kim KH, Hong SW, Lee SJ, Lee H - Ectopic expression of Expansin3 or Expansinbeta1 causes enhanced hormone and salt stress sensitivity in Arabidopsis

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  • Gene expression

A DA1 promoter::GUS fusion (pDA1::GUS) was expressed most strongly during the early stages of leaf, petal, integument, and embryo formation (Fig. 4D–H) and at much reduced levels later in petal and leaf development, consistent with its role in controlling the period of cell proliferation

Li Y, Zheng L, Corke F, Smith C, Bevan MW - Control of final seed and organ size by the DA1 gene family in Arabidopsis thaliana

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  • Gene expression

Microarray data showed that DA1 is expressed at higher levels in ABA-treated seedlings (Li et al. 2006), and further experiments established that DA1 is slowly induced by ABA (Fig. 4L) and not by other growth regulators such as jasmonic acid, auxin, cytokinin, brassinosteroids, gibberellins, or glucose

Li Y, Zheng L, Corke F, Smith C, Bevan MW - Control of final seed and organ size by the DA1 gene family in Arabidopsis thaliana

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  • Gene expression

the mRNA level of UBP15 was higher in rosette leaves and inflorescences than in other organs ... We further examined the spatial expression pattern of UBP15 within a rosette leaf at various different developmental stages. Interestingly, the UBP15 mRNA level increased from the early to late leaf stages, with higher expression in the leaf margin in the late stage

Liu Y, Wang F, Zhang H, He H, Ma L, Deng XW - Functional characterization of the Arabidopsis ubiquitin-specific protease gene family reveals specific role and redundancy of individual members in development

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  • Gene expression

To assess the subcellular distribution of UBP15, constructs containing either 35S:GFP-UBP15 or 35S:UBP15-GFP were transformed into onion epidermal cells. Transient expression showed that the fusion proteins were ubiquitously present in both the cytosol and nucleus

Liu Y, Wang F, Zhang H, He H, Ma L, Deng XW - Functional characterization of the Arabidopsis ubiquitin-specific protease gene family reveals specific role and redundancy of individual members in development

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  • Gene expression

To assess the subcellular distribution of UBP15, constructs containing either 35S:GFP-UBP15 or 35S:UBP15-GFP were transformed into onion epidermal cells. Transient expression showed that the fusion proteins were ubiquitously present in both the cytosol and nucleus

Liu Y, Wang F, Zhang H, He H, Ma L, Deng XW - Functional characterization of the Arabidopsis ubiquitin-specific protease gene family reveals specific role and redundancy of individual members in development

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  • Gene expression

in ubp15-1 ... ICK1 was up-regulated

Liu Y, Wang F, Zhang H, He H, Ma L, Deng XW - Functional characterization of the Arabidopsis ubiquitin-specific protease gene family reveals specific role and redundancy of individual members in development

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  • Gene expression

in ubp15-1 ... Expression of the CAL gene ... was slightly increased (by 1.98-fold)

Liu Y, Wang F, Zhang H, He H, Ma L, Deng XW - Functional characterization of the Arabidopsis ubiquitin-specific protease gene family reveals specific role and redundancy of individual members in development

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  • Gene expression

in ubp15-1 ... Cyclin-like F-box domain-containing protein was down-regulated

Liu Y, Wang F, Zhang H, He H, Ma L, Deng XW - Functional characterization of the Arabidopsis ubiquitin-specific protease gene family reveals specific role and redundancy of individual members in development

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  • Gene expression

in ubp15-1 ... expression of MAF5 ... decreased by 0.31-fold

Liu Y, Wang F, Zhang H, He H, Ma L, Deng XW - Functional characterization of the Arabidopsis ubiquitin-specific protease gene family reveals specific role and redundancy of individual members in development

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  • Gene expression

We found that there were substantially fewer Histone H4–expressing cells in the ProSPL9:rSPL9 shoot apical meristem

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

There was no significant change of CYP78A5 transcript levels in ... Pro35S:MIR156f ... plants

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

CYP78A5/KLUH ... expressed at the periphery of the meristem proper

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

SPL9 mRNA was found in leaf anlagen and in developing leaf primordia

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

direct analysis of miR156 expression by in situ hybridization, which revealed that miR156 accumulated ... in ... leaf primordia

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

SPL9 levels were unaffected by cyp78a5

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

As young leaves grew, SPL9 expression became gradually re- stricted to vascular tissues

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

direct analysis of miR156 expression by in situ hybridization, which revealed that miR156 accumulated ... in ... shoot apical meristem proper

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

In Pro35S:MIR156f plants, SPL9 transcripts were strongly reduced

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

we did not detect any SPL9 transcripts in the central part of the meristem

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

There was no significant change of CYP78A5 transcript levels in ... ProSPL9:rSPL9 plants

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

We therefore analyzed SPL9 expression in two mutants with reduced miR156 levels, se-1 and ago1-27. Compared with the wild type, SPL9 RNA levels were substantially elevated in both mutants. However, the overall pattern of expression was similar to that seen in the wild type

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

We therefore analyzed SPL9 expression in two mutants with reduced miR156 levels, se-1 and ago1-27. Compared with the wild type, SPL9 RNA levels were substantially elevated in both mutants. However, the overall pattern of expression was similar to that seen in the wild type

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

we employed transgenic plants in which miR156 activity is specifically reduced by con- stitutive expression of a target mimic (Franco-Zorrilla et al., 2007). SPL9 mRNA expression was changed in these Pro35S: MIM156 plants in a similar manner as in se-1 and ago1-27 plants

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

CYP78A5/KLUH ... expressed ... at the base of new leaf primordia

Wang JW, Schwab R, Czech B, Mica E, Weigel D - Dual effects of miR156-targeted SPL genes and CYP78A5/KLUH on plastochron length and organ size in Arabidopsis thaliana

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  • Gene expression

Col CPL2pro:CPL2-GUS seedlings ... In shoots, GUS activity was particularly strong in ... shoot meristems

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

In Col CPL2pro:CPL2-GUS seedlings, CPL2-GUS expression was observed throughout the plants (Fig. 2b). In later stages, GUS activity was associated with tissues undergoing cell division and expansion. In shoots, GUS activity was particularly strong in expanding leaves

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

In order to determine the level of auxin responsiveness of whole plants, DR5-GUS expressions in wild type and cpl2 was determined using a histochemical GUS assay. GUS activity in untreated cpl2-2 leaves was very low, whereas its expression level in the roots was similar to wild type (Fig. 8a). Consistently, root growth responses and lateral root development of wild type and cpl2 alleles to exogenously supplied auxin were indistinguishable

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

Unlike fry2-1, RD29a-LUC expression in cpl2-2 was specifically hyper-responsive to high NaCl treatment (Fig. 4a), but its cold and ABA induction was not as pronounced as in fry2-1

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

Col CPL2pro:CPL2-GUS seedlings ... cotyledons were stained only in ... petioles

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

Basal expression level of DR5-GUS in cpl2-2 seedlings was 28% of wild type seedlings (Fig. 6). This is consistent with the data obtained with GUS activity based on MUG assay (data not shown).

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

basal expression levels of IAA1 ... were decreased in cpl2-2 mutant plants

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

basal expression levels of ... IAA19 were decreased in cpl2-2 mutant plants

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

Col CPL2pro:CPL2-GUS seedlings ... cotyledons were stained only in vein tissues

Ueda A, Li P, Feng Y, Vikram M, Kim S, Kang CH, Kang JS, Bahk JD, Lee SY, Fukuhara T, Staswick PE, Pepper AE, Koiwa H - The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses

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  • Gene expression

Expression analysis of different plant parts indicated that HOG1 (Fig. 2d) and HOG2 (Fig. 2a) are constitutively expressed in Arabidopsis, with relatively higher levels in the leaves and inflorescence stem

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 ... AS lines ... ARR6 ... higher level (4- to 9-fold increase)

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

Application of BA caused a dose-dependent increase of ... STM transcripts

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

We performed qRT-PCR analysis with RNA from seedlings of ... HOG1 ... AS lines ... The transcript levels of ... STM were significantly upregulated by 6- to 8-fold even without BA treatment

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

ARR6 ... were upregulated within minutes after a single cytokinin pulse treatment

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

ARR4 ... were upregulated within minutes after a single cytokinin pulse treatment

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

Expression analysis of different plant parts indicated that HOG1 (Fig. 2d) and HOG2 (Fig. 2a) are constitutively expressed in Arabidopsis, with relatively higher levels in the leaves and inflorescence stem

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

Application of BA caused a dose-dependent increase of KNAT1

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 OE ... lines ... showed 4- to 7-fold decrease of ... STM transcripts

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 OE ... lines ... showed 4- to 7-fold decrease of ... KNAT1

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 OE ... lines ... ARR5 ... 3- to 9-fold decrease in the expression levels

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

We performed qRT-PCR analysis with RNA from seedlings of ... HOG1 ... AS lines ... The transcript levels of KNAT1 ... were significantly upregulated by 6- to 8-fold even without BA treatment

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 ... AS lines ... ARR4 ... higher level (4- to 9-fold increase)

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 OE ... lines ... ARR6 ... 3- to 9-fold decrease in the expression levels

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

ARR5 ... were upregulated within minutes after a single cytokinin pulse treatment

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 OE ... lines ... ARR4 ... 3- to 9-fold decrease in the expression levels

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

HOG1 ... AS lines ... ARR5 ... higher level (4- to 9-fold increase)

Godge MR, Kumar D, Kumar PP - Arabidopsis HOG1 gene and its petunia homolog PETCBP act as key regulators of yield parameters

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  • Gene expression

IAA13 ... up-regulated during sulphur starvation in Arabidopsis thaliana seedlings

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

In ARF1-BP overexpressing lines ... IAA28 ... transcript accumulated 3-fold

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

ARF2 ... up-regulated during sulphur starvation in Arabidopsis thaliana seedlings

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

For IAA28 overexpressing lines, the IAA13 transcription level was not altered

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

For IAA28 overexpressing lines ... the ARF1-BP transcript was down-regulated by up to 88%

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

IAA28 ... up-regulated during sulphur starvation in Arabidopsis thaliana seedlings

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

In ARF1-BP overexpressing lines ... IAA13 transcript accumulated ... 2-fold

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

In IAA13 overexpressing lines ... ARF1-BP transcript was reduced by 86%

Falkenberg B, Witt I, Zanor MI, Steinhauser D, Mueller-Roeber B, Hesse H, Hoefgen R - Transcription factors relevant to auxin signalling coordinate broad-spectrum metabolic shifts including sulphur metabolism

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  • Gene expression

In seedlings expressing the GUS protein under the control of the DOT1 promoter, expression was detected in emerging leaf primordia and young leaves (Figure S5

Petricka JJ, Clay NK, Nelson TM - Vein patterning screens and the defectively organized tributaries mutants in Arabidopsis thaliana

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  • Gene expression

A DOT3 promoter fused to GUS was detected in emerging leaf primordia (Figure S5

Petricka JJ, Clay NK, Nelson TM - Vein patterning screens and the defectively organized tributaries mutants in Arabidopsis thaliana

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  • Gene expression

Expression of a DOT2 promoter-GUS fusion can be seen in young leaves (Figure S5

Petricka JJ, Clay NK, Nelson TM - Vein patterning screens and the defectively organized tributaries mutants in Arabidopsis thaliana

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  • Gene expression

Very weak expression in leaves was detected in DOT4 promoter GUS lines (Figure S5

Petricka JJ, Clay NK, Nelson TM - Vein patterning screens and the defectively organized tributaries mutants in Arabidopsis thaliana

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  • Gene expression

genes induced by threefold or more in BA-treated wild-type shoots ... includes type A ARRs, the cytokinin receptor AHK4

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

AHK4 ... in the arr1-3 arr10-5 arr12-1 mutant ... basal expression level was reduced compared with that in the wild type, indicating a reduced response to endogenous cytokinin in the mutant

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

ARR15 ... in the arr1-3 arr10-5 arr12-1 mutant ... basal expression level was reduced compared with that in the wild type, indicating a reduced response to endogenous cytokinin in the mutant

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

CKX4 in the arr1-3 arr10-5 arr12-1 mutant ... basal expression level was reduced compared with that in the wild type, indicating a reduced response to endogenous cytokinin in the mutant

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

ARR7 ... the arr1-3 arr10-5 arr12-1 mutant ... basal expression level was reduced compared with that in the wild type, indicating a reduced response to endogenous cytokinin in the mutant

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

ARR5 ... in the arr1-3 arr10-5 arr12-1 mutant ... basal expression level was reduced compared with that in the wild type, indicating a reduced response to endogenous cytokinin in the mutant

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

genes induced by threefold or more in BA-treated wild-type shoots ... includes ... cytokinin oxidase CKX4

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

The arr1-3 arr10-5 arr12-1 mutant exhibited a severely abrogated response to BA, with only one of these 71 genes (ARR5) exhibiting a greater than threefold induction upon treatment with BA

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

Consistent with the decreased cell division in the arr1-3 arr10-5 arr12-1 mutant, real-time RT-PCR revealed a significant difference (P < 0.001, t test) in the basal levels of CycD3;1 expression, which is 43% lower in the mutant compared with the wild type

Argyros RD, Mathews DE, Chiang YH, Palmer CM, Thibault DM, Etheridge N, Argyros DA, Mason MG, Kieber JJ, Schaller GE - Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development

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  • Gene expression

LOX2 was the second most suppressed gene in our original analysis of jaw-D plants, after TCP4 itself

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

LOX2:GUS ... wild-type reporter was less active in tcp2 tcp4 tcp10 triple mutants

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

WRKY53 ... is induced more than 30 times in rTCP4:GFP plants, although it lacks TCP4 consensus binding motifs in its promoter

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

other lipoxygenases that are predicted to be chloroplast-localized ... LOX6

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

The expression of ... LOX4 ... is reduced in jaw-D plants

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

The expression of ... LOX4 ... is ... increased in rTCP4 plants

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

other lipoxygenases that are predicted to be chloroplast-localized ... LOX4

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

The expression of LOX3 ... is ... increased in rTCP4 plants

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

LOX2:GUS ... wild-type reporter had strong GUS activity throughout leaves, similar to what has been reported

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

LOX2 ... chloroplast-localized

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

other lipoxygenases that are predicted to be chloroplast-localized ... LOX3

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

The expression of LOX3 ... is reduced in jaw-D plants

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

most suppressed gene in our original analysis of jaw-D ... plants ... TCP4

Schommer C, Palatnik JF, Aggarwal P, Chételat A, Cubas P, Farmer EE, Nath U, Weigel D - Control of jasmonate biosynthesis and senescence by miR319 targets

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  • Gene expression

AtCDT1a ... mRNA levels ... were downregulated in plants with higher levels of ABAP1 mRNA and protein

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

AtCDT1b mRNA levels ... were downregulated in plants with higher levels of ABAP1 mRNA and protein

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

confocal and fluorescent microscopy of Arabidopsis plants producing GFP::ABAP1 indicated that ABAP1 was exclusively located in the nucleus, homogeneously distributed or enriched in nuclear domains, and GFP::ABAP1 was absent in mitotic cells

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

AtCDT1b mRNA levels ... were upregulated in plants where ABAP1 mRNA and protein levels were diminished

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

GUS expression in the meristemoid and young stomatal cells illustrates ABAP1 expression during stomatal cell differentiation

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

Studies on localization of ABAP1 expression in plant tissues showed that ABAP1 was ... mainly expressed in ... young leaves ... As the leaf grew, GUS expression decreased in a tip-to-base gradient (Figure 2C and D). In agreement, ABAP1 mRNA levels were higher in developing leaves during proliferation stage (9-day-old plants) and rapidly declined as observed in leaves of 13 till 21-day-old plants

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

Studies on localization of ABAP1 expression in plant tissues showed that ABAP1 was ... mainly expressed in the shoot apex

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

AtCDT1a ... mRNA levels ... were upregulated in plants where ABAP1 mRNA and protein levels were diminished

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

Gene expression analyses of 9-day-old AtTCP24OE seedlings with real-time RT–PCR showed that AtCDT1a ... levels were downregulated in AtTCP24OE plants

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

Gene expression analyses of 9-day-old AtTCP24OE seedlings with real-time RT–PCR showed that ... AtCDT1b levels were downregulated in AtTCP24OE plants

Masuda HP, Cabral LM, De Veylder L, Tanurdzic M, de Almeida Engler J, Geelen D, Inzé D, Martienssen RA, Ferreira PC, Hemerly AS - ABAP1 is a novel plant Armadillo BTB protein involved in DNA replication and transcription

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  • Gene expression

To examine the effect of the as2–5D mutation on the expression of AS2, we generated promoter–reporter constructs with ... mutated AS2 regulatory sequences fused to ßglucuronidase (GUS). For this purpose we used a 4.1-kb genomic fragment that is capable of rescuing the as2–1 phenotype when fused to an AS2 cDNA [supporting information (SI) Fig. S1]. Constructs with the ... mutated versions of this fragment containing either the as2–5D mutation (pas2–5D:GUS ... were introduced into plants by Agrobacterium-mediated transformation ... plants transformed with pas2–5D:GUS expressed GUS throughout the cotyledons

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

Plants mutant for both KAN1 and KAN2 expressed pAS2:GUS ubiquitously in ... leaf primordia

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

To examine the effect of the as2–5D mutation on the expression of AS2, we generated promoter–reporter constructs with ... mutated AS2 regulatory sequences fused to ßglucuronidase (GUS). For this purpose we used a 4.1-kb genomic fragment that is capable of rescuing the as2–1 phenotype when fused to an AS2 cDNA [supporting information (SI) Fig. S1]. Constructs with the ... mutated versions of this fragment containing either the as2–5D mutation (pas2–5D:GUS ... were introduced into plants by Agrobacterium-mediated transformation ... plants transformed with pas2–5D:GUS expressed GUS throughout the cotyledons, leaf primordia, and the hypocotyl

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

Consistent with their subtle morphological phenotype, mutations in KAN2 had no apparent effect on pAS2:GUS expression

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

in as2–5D plants pKAN1:GUS expression was excluded from leaf primordia

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

in plants transformed with 35S:KAN1-GR, a construct that constitutively expresses a dexamethasone (DEX)-inducible form of KAN1. Semiquantitative RT-PCR analysis of 35S:KAN-GR plants grown continuously on DEX or on basal medium followed by DEX revealed that DEX reduced the amount of AS2 mRNA

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

in plants transformed with 35S:KAN1-GR, a construct that constitutively expresses a dexamethasone (DEX)-inducible form of KAN1. Semiquantitative RT-PCR analysis of 35S:KAN-GR plants grown continuously on DEX or on basal medium followed by DEX ... had no effect on the expression of AS1

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

Plants mutant for both KAN1 and KAN2 expressed pAS2:GUS ubiquitously in cotyledons

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

In as2–1, pKAN1:GUS expression extended to the adaxial side of young leaf primordia and persisted late in leaf development

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

in plants transformed with 35S:KAN1-GR, a construct that constitutively expresses a dexamethasone (DEX)-inducible form of KAN1. Semiquantitative RT-PCR analysis of 35S:KAN-GR plants grown continuously on DEX or on basal medium followed by DEX ... had no effect on the expression of ... FIL1

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

loss-of-function mutants of KAN1 ... had little effect on the expression of pAS2:GUS in cotyledons (Fig. 5B), but caused this reporter to be expressed on both the adaxial and abaxial sides of leaf primordia

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

examined the expression of AS2 and several other polarity genes in plants transformed with 35S:KAN1-GR, a construct that constitutively expresses a dexamethasone (DEX)-inducible form of KAN1. Semiquantitative RT-PCR analysis of 35S:KAN-GR plants grown continuously on DEX or on basal medium followed by DEX ... had no effect on the expression of ... YAB3

Wu G, Lin WC, Huang T, Poethig RS, Springer PS, Kerstetter RA - KANADI1 regulates adaxial-abaxial polarity in Arabidopsis by directly repressing the transcription of ASYMMETRIC LEAVES2

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  • Gene expression

using in situ hybridization to examine the expression of WUS ... Among 14-day-old emb1611-2 seedlings, 50% showed WUS expression in a reduced domain ... in the SAM

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

using in situ hybridization to ... examine the expression of WUS ... Among 7-day-old emb1611-2 seedlings, 50% had a normal WUS expression domain ... in the SAM

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

using in situ hybridization to examine the expression of WUS ... Among 7-day-old emb1611-2 seedlings ... 50% displayed no WUS expression in the SAM

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

Some 13-day-old emb1611-2 seedlings showed a normal pattern of pSTM::uidA activity

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

The pattern of pSTM::uidA activity in the periphery of the meristem was largely unaltered in 7-day-old emb1611-2 seedlings ... compared with wild-type seedlings

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

Some 13-day-old emb1611-2 seedlings ... displayed pSTM::uidA activity throughout the SAM

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

using in situ hybridization to examine the expression of WUS ... Among 14-day-old emb1611-2 seedlings ... 50% displayed no WUS expression in the SAM

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

pattern of pSTM::uidA activity ... in 7-day-old emb1611-2 seedlings ... a few emb1611-2 individuals showed light GUS staining in the center of the SAM

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

In 17-day-old emb1611-2 plants, pSTM::uidA activity was invariably detected throughout the meristem

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

EMB1611 ... is transcribed at low but equivalent levels in all tissues ... based on RT-PCR

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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  • Gene expression

using in situ hybridization to examine the expression of WUS ... Among 14-day-old emb1611-2 seedlings, 50% showed WUS expression ... at lower levels than in wild-type seedlings ... in the SAM

Leasure CD, Fiume E, Fletcher JC - The essential gene EMB1611 maintains shoot apical meristem function during Arabidopsis development

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However, the expression of TSB1 was not affected in the mutant

Jing Y, Cui D, Bao F, Hu Z, Qin Z, Hu Y - Tryptophan deficiency affects organ growth by retarding cell expansion in Arabidopsis

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  • Gene expression

To investigate the function of FZR genes in plant development, we obtained two T-DNA insertion mutants for FZR2 from the SALK collection ... fzr2-2 (SALK_101689) lines carry insertions in ... the second intron ... Insertions were confirmed by sequencing. RT-PCR analysis showed that both alleles of fzr2 fail to produce full-length transcript

Larson-Rabin Z, Li Z, Masson PH, Day CD - FZR2/CCS52A1 expression is a determinant of endoreduplication and cell expansion in Arabidopsis

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  • Gene expression

leaf development by quantitative real-time RT-PCR ... FZR3 was highly expressed in 3- and 5-d-old leaves

Larson-Rabin Z, Li Z, Masson PH, Day CD - FZR2/CCS52A1 expression is a determinant of endoreduplication and cell expansion in Arabidopsis

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  • Gene expression

To investigate the function of FZR genes in plant development, we obtained two T-DNA insertion mutants for FZR2 from the SALK collection. The fzr2-1 (SALK_083656 ... lines carry insertions in the fourth exon ... Insertions were confirmed by sequencing. RT-PCR analysis showed that both alleles of fzr2 fail to produce full-length transcript

Larson-Rabin Z, Li Z, Masson PH, Day CD - FZR2/CCS52A1 expression is a determinant of endoreduplication and cell expansion in Arabidopsis

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  • Gene expression

leaf development by quantitative real-time RT-PCR ... steady expression ... FZR2 ... at 2 to 5 d

Larson-Rabin Z, Li Z, Masson PH, Day CD - FZR2/CCS52A1 expression is a determinant of endoreduplication and cell expansion in Arabidopsis

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  • Gene expression

leaf development by quantitative real-time RT-PCR ... steady expression of FZR1 ... at 2 to 5 d

Larson-Rabin Z, Li Z, Masson PH, Day CD - FZR2/CCS52A1 expression is a determinant of endoreduplication and cell expansion in Arabidopsis

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  • Gene expression

FZR2 expression in seedlings

Larson-Rabin Z, Li Z, Masson PH, Day CD - FZR2/CCS52A1 expression is a determinant of endoreduplication and cell expansion in Arabidopsis

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  • Gene expression

FZR2 expression in ... leaves

Larson-Rabin Z, Li Z, Masson PH, Day CD - FZR2/CCS52A1 expression is a determinant of endoreduplication and cell expansion in Arabidopsis

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  • Gene expression

The mutant pldε-1 ... resulted in loss of PLDε expression, as indicated by the absence of detectable PLDε transcript

Hong Y, Devaiah SP, Bahn SC, Thamasandra BN, Li M, Welti R, Wang X - Phospholipase D epsilon and phosphatidic acid enhance Arabidopsis nitrogen signaling and growth

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  • Gene expression

PLDε mRNA level was ... low in leaves

Hong Y, Devaiah SP, Bahn SC, Thamasandra BN, Li M, Welti R, Wang X - Phospholipase D epsilon and phosphatidic acid enhance Arabidopsis nitrogen signaling and growth

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  • Gene expression

in the AtMRB1 overexpressor plants ... the transcription level of ANT ... significantly upregulated

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

in the AtMRB1 overexpressor plants ... the transcription level of ... ROT3 ... significantly upregulated

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

To analyze the expression pattern of AtMRB1, we amplified a 1.8 kb long fragment from the AtMRB1 promoter and fused it to β-glucuronidase (GUS) prior to transformation into wild type Arabidopsis. Analysis of the transgenic plants showed that the expression of AtMRB1 was mainly focused in young leaves, hypocotyl, and in the roots of the seedlings

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

in the AtMRB1 overexpressor plants ... the transcription level of ... BB ... not much altered

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

In adult plants, AtMRB1 transcripts were mainly concentrated in the roots and flower organs, including young upper stems, shoot tips and shoot apical meristems (SAM), and flower buds (Figure 3D–M

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

We transformed wild type Arabidopsis thaliana with the AtMRB1-green fluorescent protein (GFP) fusion protein construct driven by a CaMV 35S promoter and successfully obtained 35 independent transgenic lines used to study the subcellular localization using Confocal Imaging. As shown in Figure 2, green fluorescence was found in the membrane of the cells in undifferentiated cells in the root tip extension zone of AtMRB1-GFP transgenic plants

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

in the AtMRB1 overexpressor plants ... the transcription level of ... AtGIF ... not much altered

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

in the AtMRB1 overexpressor plants ... the transcription level of ... GRF5 ... significantly upregulated

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

In adult plants, AtMRB1 transcripts were mainly concentrated in the roots and flower organs, including young upper stems, shoot tips and shoot apical meristems (SAM), and flower buds (Figure 3D–M

Guan H, Kang D, Fan M, Chen Z, Qu LJ - Overexpression of a new putative membrane protein gene AtMRB1 results in organ size enlargement in Arabidopsis

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  • Gene expression

Strong EXO expression was observed in rosette leaves

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

proteomics approaches also identified the EXO ... as part of the cell wall proteome

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

The EXO:HA protein was detected in the cell wall

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

expression was observed in rosette leaves ... EXL5

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

Senescing leaves ... displayed little EXO expression

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

Real-time RT-PCR analysis demonstrated weaker EXP5 ... expression in the exo mutant in comparison to Col-0 wild-type plants

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

Real-time RT-PCR analysis demonstrated weaker ... KCS1 expression in the exo mutant in comparison to Col-0 wild-type plants

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

expression was observed in ... cotyledons ... EXL1

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

proteomics approaches also identified ... EXL2 ... as part of the cell wall proteome

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

expression was observed in rosette leaves ... EXL1

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

expression was observed in ... cotyledons ... EXL3

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

proteomics approaches also identified ... EXL3 ... as part of the cell wall proteome

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

proteomics approaches also identified ... EXL4 ... as part of the cell wall proteome

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

proteomics approaches also identified ... EXL1 ... as part of the cell wall proteome

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

Strong EXO expression was observed in ... cotyledons

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

EXL1 ... expression was also induced by BR

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

expression was observed in ... cotyledons ... EXL5

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

expression was observed in rosette leaves ... EXL3

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

EXL5 expression was also induced by BR

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

exo plants ... WAK1 (Wall-Associated Kinase 1) [22] transcript levels were reduced approximately 2.5-fold in the mutant

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

a 35S::EXO:GFP construct was stably introduced into Arabidopsis wild-type plants. Green fluorescence was detected in the apoplast. Plasmolysed cells showed fluorescence in the apoplast as well

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

EXL3 ... expression was also induced by BR

Schröder F, Lisso J, Lange P, Müssig C - The extracellular EXO protein mediates cell expansion in Arabidopsis leaves

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... 7503R exhibited lower GUS expression in the SAM and no expression in the inner layers of leaves. The results showed that the epidermis of leaves and trichomes were prominently GUS-stained (Fig. 5C). This indicates that the region between − 200 bp and − 101 bp is associated with CDKA;1 expression in the ... leaves except for the epidermis

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

CDKA;1 ... 2690-bp upstream region ... fused it to the β-glucuronidase (GUS) gene ... We then dissected the CDKA;1 promoter and observed GUS expression in tissues. Since Imajuku et al. (2001) have reported that the promoter region from − 1268 bp to the initiation codon was enough to reproduce the expression pattern driven by longer promoter fragments, we generated a deletion series of the 1290-bp region as shown in Fig. 2. The constructs, which were termed 7505, 7506, 7507, 7508, 7509, and 7510, differed with regard to the length of the 5′ region at 100-bp intervals. Seven-day-old seedlings harboring each reporter gene were subjected to GUS staining. We could not find any significant difference in the level and tissue specificity of the expressions of this gene among transgenic lines transformed with the constructs of 7501, 7505, 7506, 7507, 7508, and 7509 (Fig. 3). A shorter incubation in a GUS-staining buffer at a lower temperature (20 °C, 10 min) also showed no significant difference among these lines (Supplemental Fig. 1). However, GUS expression in the 7510 seedlings was lower in both the shoots and roots as compared to that in the above-mentioned lines, although no obvious change was observed in the expression pattern (Fig. 3). We could observe similar quantitative differences in the embryos and inflorescences (Supplemental Fig. 2). These results suggest that the region from − 890 bp to − 791 bp contains cis-regulatory element(s) that promote CDKA;1 expression independently of tissues ... Therefore, we constructed GUS reporter genes with 3′-end truncations of the 1290-bp region. The 7505, 7502R, 7503R, 7504R, 7505R, 7506R, and 7507R constructs differed with regard to the length of the 3′ region at 100-bp intervals (Fig. 2). In the 7-day-old seedlings, we found a significant decrease in the level of GUS expression between the 7502R and 7503R constructs (Fig. 4A). A similar reduction was also noted in embryos (Supplemental Fig. 3), indicating the presence of another cis-regulatory element between − 200 and − 101 bp. In the 7503R–7505R lines, the expression in the roots was gradually reduced as the 3′ end became shorter and, in the roots of the 7506R or 7507R plants, we could not detect any GUS expression (Fig. 4B). Despite the disappearance of GUS expression in roots, we could observe GUS signals in young leaves of the 7506R and 7507R lines (Fig. 4B), indicating the presence of root-specific regulatory elements that promote CDKA;1 expression. Presence of a promoter region enhancing CDKA;1 expression in the leaf epidermis ... 7509F/7R, which carries the region between − 890 bp and − 601 bp (Fig. 2). Although we included the region from − 890 bp to − 791 bp that promotes CDKA;1 expression as mentioned above, the GUS signal was very weak as compared to that in 7507R. However, we could again identify epidermis-specific expression (Fig. 5D), suggesting that this region contains enough information to promote epidermal expression in leaves ... then introduced the 7507R reporter gene into the phbulosa-1d (phb-1d) mutants ... Although the stipules were stained in a similar manner to the wild-type background, the GUS expression in the leaf epidermis was severely suppressed, and almost no expression was detected in any cell type

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

CDKA;1 ... 2690-bp upstream region ... fused it to the β-glucuronidase (GUS) gene ... weakly stained mesophyll cells in the leaves ... We then dissected the CDKA;1 promoter and observed GUS expression in tissues. Since Imajuku et al. (2001) have reported that the promoter region from − 1268 bp to the initiation codon was enough to reproduce the expression pattern driven by longer promoter fragments, we generated a deletion series of the 1290-bp region as shown in Fig. 2. The constructs, which were termed 7505, 7506, 7507, 7508, 7509, and 7510, differed with regard to the length of the 5′ region at 100-bp intervals. Seven-day-old seedlings harboring each reporter gene were subjected to GUS staining. We could not find any significant difference in the level and tissue specificity of the expressions of this gene among transgenic lines transformed with the constructs of 7501, 7505, 7506, 7507, 7508, and 7509 (Fig. 3). A shorter incubation in a GUS-staining buffer at a lower temperature (20 °C, 10 min) also showed no significant difference among these lines (Supplemental Fig. 1). However, GUS expression in the 7510 seedlings was lower in both the shoots and roots as compared to that in the above-mentioned lines, although no obvious change was observed in the expression pattern (Fig. 3). We could observe similar quantitative differences in the embryos and inflorescences (Supplemental Fig. 2). These results suggest that the region from − 890 bp to − 791 bp contains cis-regulatory element(s) that promote CDKA;1 expression independently of tissues ... Therefore, we constructed GUS reporter genes with 3′-end truncations of the 1290-bp region. The 7505, 7502R, 7503R, 7504R, 7505R, 7506R, and 7507R constructs differed with regard to the length of the 3′ region at 100-bp intervals (Fig. 2). In the 7-day-old seedlings, we found a significant decrease in the level of GUS expression between the 7502R and 7503R constructs (Fig. 4A). A similar reduction was also noted in embryos (Supplemental Fig. 3), indicating the presence of another cis-regulatory element between − 200 and − 101 bp. In the 7503R–7505R lines, the expression in the roots was gradually reduced as the 3′ end became shorter and, in the roots of the 7506R or 7507R plants, we could not detect any GUS expression (Fig. 4B). Despite the disappearance of GUS expression in roots, we could observe GUS signals in young leaves of the 7506R and 7507R lines (Fig. 4B), indicating the presence of root-specific regulatory elements that promote CDKA;1 expression. Presence of a promoter region enhancing CDKA;1 expression in the leaf epidermis ... we created another reporter construct, 7509F/7R, which carries the region between − 890 bp and − 601 bp ... we could again identify epidermis-specific expression (Fig. 5D), suggesting that this region contains enough information to promote epidermal expression in leaves

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... we constructed GUS reporter genes with 3′-end truncations of the 1290-bp region. The 7505, 7502R, 7503R, 7504R, 7505R, 7506R, and 7507R constructs differed with regard to the length of the 3′ region at 100-bp intervals ... We then conducted a detailed analysis of the epidermal expression of this gene by using the 7507R reporter gene. Since the longitudinal sections of shoot apices showed biased GUS staining on the abaxial side of the leaf epidermis (Fig. 5C), we also created transverse sections of the SAM and leaves. As expected, GUS expression was higher on the abaxial side of young leaves, and only a trace level of expression was observed on the adaxial side

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... To examine cell type-specific regulation of CDKA;1 expression, we made sections of GUS-stained shoot apices ... GUS expression was observed in the ... leaf primordia

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... we created another reporter construct, 7509F/7R, which carries the region between − 890 bp and − 601 bp (Fig. 2). Although we included the region from − 890 bp to − 791 bp that promotes CDKA;1 expression as mentioned above, the GUS signal was very weak as compared to that in 7507R. However, we could again identify epidermis-specific expression (Fig. 5D), suggesting that this region contains enough information to promote epidermal expression in leaves

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... To examine cell type-specific regulation of CDKA;1 expression, we made sections of GUS-stained shoot apices ... GUS expression was observed in the ... developing leaves

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

CDKA ... 1 ... 2690-bp upstream region ... fused it to the β-glucuronidase (GUS) gene ... an intense signal in the stomata ... in the leaves ... We then dissected the CDKA;1 promoter and observed GUS expression in tissues. Since Imajuku et al. (2001) have reported that the promoter region from − 1268 bp to the initiation codon was enough to reproduce the expression pattern driven by longer promoter fragments, we generated a deletion series of the 1290-bp region as shown in Fig. 2. The constructs, which were termed 7505, 7506, 7507, 7508, 7509, and 7510, differed with regard to the length of the 5′ region at 100-bp intervals. Seven-day-old seedlings harboring each reporter gene were subjected to GUS staining. We could not find any significant difference in the level and tissue specificity of the expressions of this gene among transgenic lines transformed with the constructs of 7501, 7505, 7506, 7507, 7508, and 7509 (Fig. 3). A shorter incubation in a GUS-staining buffer at a lower temperature (20 °C, 10 min) also showed no significant difference among these lines (Supplemental Fig. 1). However, GUS expression in the 7510 seedlings was lower in both the shoots and roots as compared to that in the above-mentioned lines, although no obvious change was observed in the expression pattern (Fig. 3). We could observe similar quantitative differences in the embryos and inflorescences (Supplemental Fig. 2). These results suggest that the region from − 890 bp to − 791 bp contains cis-regulatory element(s) that promote CDKA;1 expression independently of tissues ... Therefore, we constructed GUS reporter genes with 3′-end truncations of the 1290-bp region. The 7505, 7502R, 7503R, 7504R, 7505R, 7506R, and 7507R constructs differed with regard to the length of the 3′ region at 100-bp intervals (Fig. 2). In the 7-day-old seedlings, we found a significant decrease in the level of GUS expression between the 7502R and 7503R constructs (Fig. 4A). A similar reduction was also noted in embryos (Supplemental Fig. 3), indicating the presence of another cis-regulatory element between − 200 and − 101 bp. In the 7503R–7505R lines, the expression in the roots was gradually reduced as the 3′ end became shorter and, in the roots of the 7506R or 7507R plants, we could not detect any GUS expression (Fig. 4B). Despite the disappearance of GUS expression in roots, we could observe GUS signals in young leaves of the 7506R and 7507R lines (Fig. 4B), indicating the presence of root-specific regulatory elements that promote CDKA;1 expression. Presence of a promoter region enhancing CDKA;1 expression in the leaf epidermis ... we created another reporter construct, 7509F/7R, which carries the region between − 890 bp and − 601 bp ... we could again identify epidermis-specific expression (Fig. 5D), suggesting that this region contains enough information to promote epidermal expression in leaves

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... 7503R exhibited lower GUS expression in the SAM and no expression in the inner layers of leaves. The results showed that the epidermis of leaves and trichomes were prominently GUS-stained (Fig. 5C). This indicates that the region between − 200 bp and − 101 bp is associated with CDKA;1 expression in the ... leaves except for the epidermis ... The epidermis-specific expression pattern was also observed in 7504R–7507R ... In situ hybridization using probes for transcripts of GUS showed the similar epidermis-specific expression in leaves of the 7503R and 7507R lines

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... we constructed GUS reporter genes with 3′-end truncations of the 1290-bp region. The 7505, 7502R, 7503R, 7504R, 7505R, 7506R, and 7507R constructs differed with regard to the length of the 3′ region at 100-bp intervals ... 7503R exhibited lower GUS expression in the SAM and no expression in the inner layers of leaves. The results showed that the epidermis of leaves and trichomes were prominently GUS-stained (Fig. 5C). This indicates that the region between − 200 bp and − 101 bp is associated with CDKA;1 expression in the ... leaves except for the epidermis ... The epidermis-specific expression pattern was also observed in 7504R–7507R

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

We then dissected the CDKA;1 promoter and observed GUS expression in tissues ... we constructed GUS reporter genes with 3′-end truncations of the 1290-bp region. The 7505, 7502R, 7503R, 7504R, 7505R, 7506R, and 7507R constructs differed with regard to the length of the 3′ region at 100-bp intervals ... We then conducted a detailed analysis of the epidermal expression of this gene by using the 7507R reporter gene. Since the longitudinal sections of shoot apices showed biased GUS staining on the abaxial side of the leaf epidermis (Fig. 5C), we also created transverse sections of the SAM and leaves. As expected, GUS expression was higher on the abaxial side of young leaves, and only a trace level of expression was observed on the adaxial side

Adachi S, Nobusawa T, Umeda M - Quantitative and cell type-specific transcriptional regulation of A-type cyclin-dependent kinase in Arabidopsis thaliana

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  • Gene expression

MED21 ... Significant expression in rosette leaves

Dhawan R, Luo H, Foerster AM, Abuqamar S, Du HN, Briggs SD, Mittelsten Scheid O, Mengiste T - HISTONE MONOUBIQUITINATION1 interacts with a subunit of the mediator complex and regulates defense against necrotrophic fungal pathogens in Arabidopsis

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  • Gene expression

HERK1 ... expression levels ... were ... increased in the constitutive BR-response mutant bes1-D

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

THE1 ... localized to the plasma membrane

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

FER ... universally expressed in most vegetative tissues, including leaves, stems and roots as revealed by our promoter-GUS (β-glucuronidase) reporter gene studies

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

HERK1 ... expression is particularly strong in the regions undergoing cell elongation, such as in hypocotyls and leaf petioles

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

In our effort to identify and characterize BR regulated genes, we found that HERK1, THE1 and FER are induced by BRs as revealed by both published (15) and publicly available microarray data (http://bbc.botany.utoronto.ca/efp/cgi-bin/efpWeb.cgi). HERK1, THE1, and FER are the most highly induced genes by BR and, therefore, were chosen for further study. Our quantitative RT-PCR experiments confirmed that brassinolide (BL), the most active BR, up-regulated these RLKs by ≈20–80% in seedlings and/or adult plants (Fig. 1A

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

In our effort to identify and characterize BR regulated genes, we found that HERK1, THE1 and FER are induced by BRs as revealed by both published (15) and publicly available microarray data (http://bbc.botany.utoronto.ca/efp/cgi-bin/efpWeb.cgi). HERK1, THE1, and FER are the most highly induced genes by BR and, therefore, were chosen for further study. Our quantitative RT-PCR experiments confirmed that brassinolide (BL), the most active BR, up-regulated these RLKs by ≈20–80% in seedlings and/or adult plants (Fig. 1A

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

FER ... localized to the plasma membrane

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

FER ... expression levels ... were reduced in the loss-of-function mutant bri1

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

FER ... expression is particularly strong in the regions undergoing cell elongation, such as in hypocotyls and leaf petioles

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

HERK1-GFP fusion localized to the plasma membrane when expressed in Arabidopsis protoplasts and plants

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

THE1 ... universally expressed in most vegetative tissues, including leaves, stems and roots as revealed by our promoter-GUS (β-glucuronidase) reporter gene studies

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

HERK1 ... expression levels ... were reduced in the loss-of-function mutant bri1

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

HERK1 ... universally expressed in most vegetative tissues, including leaves, stems and roots as revealed by our promoter-GUS (β-glucuronidase) reporter gene studies

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

THE1 ... expression levels ... were ... increased in the constitutive BR-response mutant bes1-D

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

THE1 ... expression levels ... were reduced in the loss-of-function mutant bri1

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

In our effort to identify and characterize BR regulated genes, we found that HERK1, THE1 and FER are induced by BRs as revealed by both published (15) and publicly available microarray data (http://bbc.botany.utoronto.ca/efp/cgi-bin/efpWeb.cgi). HERK1, THE1, and FER are the most highly induced genes by BR and, therefore, were chosen for further study. Our quantitative RT-PCR experiments confirmed that brassinolide (BL), the most active BR, up-regulated these RLKs by ≈20–80% in seedlings and/or adult plants (Fig. 1A

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

FER ... expression levels ... were ... increased in the constitutive BR-response mutant bes1-D

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

THE1 ... expression is particularly strong in the regions undergoing cell elongation, such as in hypocotyls and leaf petioles

Guo H, Li L, Ye H, Yu X, Algreen A, Yin Y - Three related receptor-like kinases are required for optimal cell elongation in Arabidopsis thaliana

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  • Gene expression

The expression pattern of SPI was determined by RT-PCR analysis. SPI could be amplified from total RNA of all organs tested, including the flowers, cauline leaves, stem, rosette leaves, hypocotyl and roots

Saedler R, Jakoby M, Marin B, Galiana-Jaime E, Hülskamp M - The cell morphogenesis gene SPIRRIG in Arabidopsis encodes a WD/BEACH domain protein

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  • Gene expression

When we examined the accumula- tion of AN3 transcript in the ... oli5 ... by RT-PCR analysis, it accumulated at a comparable level to that in wild-type

Fujikura U, Horiguchi G, Ponce MR, Micol JL, Tsukaya H - Coordination of cell proliferation and cell expansion mediated by ribosome-related processes in the leaves of Arabidopsis thaliana

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  • Gene expression

When we examined the accumula- tion of AN3 transcript in the ... oli7 ... by RT-PCR analysis, it accumulated at a comparable level to that in wild-type

Fujikura U, Horiguchi G, Ponce MR, Micol JL, Tsukaya H - Coordination of cell proliferation and cell expansion mediated by ribosome-related processes in the leaves of Arabidopsis thaliana

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  • Gene expression

When we examined the accumula- tion of AN3 transcript in the oli2 ... by RT-PCR analysis, it accumulated at a comparable level to that in wild-type

Fujikura U, Horiguchi G, Ponce MR, Micol JL, Tsukaya H - Coordination of cell proliferation and cell expansion mediated by ribosome-related processes in the leaves of Arabidopsis thaliana

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  • Gene expression

The bil1bil2 mutation increases the SAUR-ACS1 transcript level by approximately 2-fold

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

without BR treatment, bin2-3 mutants accumulated more SAUR-AC1 transcripts ... than wild-type plants

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

without BR treatment, bin2-3 mutants accumulate an easily detectable amount of hypophosphorylated BES1 compared with wild-type control plants grown under the same growth conditions

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

1 h of BL treatment stimulated the expression of SAUR-AC1

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

1 h of BL treatment ... inhibited the accumulation of transcripts of ... CPD

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

1 h of BL treatment ... inhibited the accumulation of transcripts of ... DWF4

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

SAUR-AC1 expression was significantly enhanced in the bin2-3bil1bil3 triple mutant, with a nearly 7-fold increase compared with an approximately 3-fold BR-elicited induction in wild-type seedlings

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

without BR treatment, bin2-3 mutants accumulated ... lower levels of DWF4 ... mRNAs than wild-type plants

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

without BR treatment, bin2-3 mutants accumulated ... lower levels of ... CPD mRNAs than wild-type plants

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

bin2-3bil1bil2 ... the transcript level of CPD was reduced by approximately 80% in the triple mutant compared with an approximately 40% reduction in BR-treated wild-type plants

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

wild-type plants predominantly accumulate the hyperphosphorylated form of BES1, and BL treatment results in rapid disappearance of the hyperphosphorylated BES1 accompanied by accumulation of hypophosphorylated BES1, which has a faster electrophoretic mobility on western blot

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

The bil1bil2 mutation ... reduces the CPD mRNA level by approximately 30%

Yan Z, Zhao J, Peng P, Chihara RK, Li J - BIN2 functions redundantly with other Arabidopsis GSK3-like kinases to regulate brassinosteroid signaling

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  • Gene expression

pEPF2:GUS expressed ... in very young leaves and during leaf development became restricted to meristemoids and GMCs

Hunt L, Gray JE - The signaling peptide EPF2 controls asymmetric cell divisions during stomatal development

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  • Gene expression

In transgenic plants harboring EPF1–GFP ... EPF1 ... activated green fluorescent protein ... in stomatal precursors

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

An in situ RNA hybridization experiment showed that the EPF2 message ... was also expressed in another type of cells with a small quadrangular shape, which are perhaps cells with asymmetric cell division competency, including MMCs

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

Overexpression of ... EPF2 decreased the number of cells expressing EPF1–GFP

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

EPF2–GFP was not detected in guard cells nor in any non-epidermal cells

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

In ... transgenic plants harboring ... EPF2–GFP ... At1g34245 ... activated green fluorescent protein ... in stomatal precursors

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

EPF1–GFP ... were expressed ... not in the spch homozygotes

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

Overexpression of neither EPF1 ... affected TMM–GFP expression

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

Reverse transcription–PCR (RT–PCR) analysis revealed that EPF2 ... is preferentially expressed in the aerial organs

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

Overexpression of neither ... EPF2 affected TMM–GFP expression

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

Overexpression of ... EPF1 ... decreased the number of cells expressing EPF1–GFP

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

An in situ RNA hybridization experiment showed that ... During early leaf development, the onset of the EPF2–GFP signal preceded the emergence of meristemoids ... signal was later detected in meristemoids, their sister cells and GMCs

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

Reverse transcription–PCR (RT–PCR) analysis revealed that ... EPF1 ... is preferentially expressed in the aerial organs

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

EPF2–GFP ... were expressed ... not in the spch homozygotes

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

overexpression of EPF1 ... did not reduce the number of cells expressing EPF2–GFP

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

EPF2-overexpressors had a decreased number of cells that express EPF2–GFP

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

TMM–GFP ... were expressed ... not in the spch homozygotes

Hara K, Yokoo T, Kajita R, Onishi T, Yahata S, Peterson KM, Torii KU, Kakimoto T - Epidermal cell density is autoregulated via a secretory peptide, EPIDERMAL PATTERNING FACTOR 2 in Arabidopsis leaves

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  • Gene expression

in 35S:MIR396 transgenic plants ... levels of ... AtGRF3 transcripts were ... lower than those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF8 ... mRNA levels were reduced in transgenic 35S:MIR396 plant leaves relative to those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF4 mRNA levels were also reduced in transgenic 35S:MIR396 plant leaves compared with control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF7 ... mRNA levels were reduced in transgenic 35S:MIR396 plant leaves relative to those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

Both RNA gel blot analysis and RT-PCR analysis showed that the expression levels of AN3 were significantly reduced in the transgenic 35S:MIR396a ... plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

Wild-type plants (Col-0) (3 weeks old) grown in soil were subjected to drought stress by withholding watering and the levels of miR396 were determined by RNA blot analysis. As shown in Fig. 11, the level of miR396 was slightly increased in 1 day of watering withholding and was further elevated 2 days later. The levels of miR396 remained substantially higher after 4 and 5 days of drought stress than those detected prior to drought stress treatment. These results indicated that the level of miR396 was induced by drought stress

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF8 ... mRNA levels were reduced in transgenic 35S:MIR396 plant leaves relative to those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

in 35S:MIR396 transgenic plants ... levels of ... AtGRF3 transcripts were ... lower than those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

in 35S:MIR396 transgenic plants ... levels of AtGRF1 ... transcripts were ... lower than those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

in 35S:MIR396 transgenic plants ... levels of AtGRF1 ... transcripts were ... lower than those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

the transcript levels for ... AtGRF3 ... were significantly lower after 4 days of watering withholding than those detected at the beginning of drought stress

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF9 mRNA levels were reduced in transgenic 35S:MIR396 plant leaves relative to those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

the transcript levels for ... AN3 were significantly lower after 4 days of watering withholding than those detected at the beginning of drought stress

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

in 35S:MIR396 transgenic plants ... levels of ... AtGRF2 ... transcripts were ... lower than those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

in 35S:MIR396 transgenic plants ... levels of ... AtGRF2 ... transcripts were ... lower than those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF4 mRNA levels were also reduced in transgenic 35S:MIR396 plant leaves compared with control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF9 mRNA levels were reduced in transgenic 35S:MIR396 plant leaves relative to those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

AtGRF7 ... mRNA levels were reduced in transgenic 35S:MIR396 plant leaves relative to those in control plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

miR396 was broadly an expression profile and strongly expressed in 6-day-old seedlings and rosette leaves

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

the transcript levels for AtGRF1 ... were significantly lower after 4 days of watering withholding than those detected at the beginning of drought stress

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

Both RNA gel blot analysis and RT-PCR analysis showed that the expression levels of AN3 were significantly reduced in the transgenic ... 35S:MIR396b plants

Liu D, Song Y, Chen Z, Yu D - Ectopic expression of miR396 suppresses GRF target gene expression and alters leaf growth in Arabidopsis

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  • Gene expression

Transcripts for AtRPT2a ... were detectable in all organs tested at both 16 and 45 days after sowing (DAS)

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

At the proliferation stage (11 DAS), there was no difference in KRP2 transcript accumulation between the wild type and rpt2a-2

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

Transcripts for ... AtRPT2b were detectable in all organs tested at both 16 and 45 days after sowing (DAS)

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

At the proliferation stage (11 DAS) ... the expression of ... CYCB1;1 ... was increased in rpt2a-2 compared with the wild type

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

The AtRPT2a promoter showed strong activity in the shoot meristem

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

AtRPT2a ... was detectable in various tissues, such as expanded cotyledons, vascular cells and trichomes

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

AtRPT2b ... was detectable in ... trichomes

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

AtRPT2b ... was detectable in various tissues, such as expanded cotyledons, vascular cells and trichomes

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

At the proliferation stage (11 DAS) ... the expression of ... KRP1 was increased in rpt2a-2 compared with the wild type

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

At the proliferation stage (11 DAS) ... the expression of CDKB1;1 ... was increased in rpt2a-2 compared with the wild type

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

AtRPT2b showed strong activity in both the shoot and root meristems

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

AtRPT2a ... was detectable in ... trichomes

Sonoda Y, Sako K, Maki Y, Yamazaki N, Yamamoto H, Ikeda A, Yamaguchi J - Regulation of leaf organ size by the Arabidopsis RPT2a 19S proteasome subunit

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  • Gene expression

At4g37740/GRF2 ... was also increased in the gra-D mutants

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

we further analyzed the expression array data. In the commonly duplicated regions, we found four cyclin genes, CYCD3;1 (At4g34160), CYCB1;1 (At4g37490), CYCB2;2 (At4g35620) and CYCD5;1 (At4g37630) (Vandepoele et al., 2002) ... The expression of these genes in at least two gra-D mutants was more than 1.36-fold higher than that in wild-type (P < 0.05, Table S1)

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

a bHLH transcription factor BEE2 (At4g36540) (Friedrichsen et al., 2002) that positively controls brassinosteroid signaling, showed elevated expression levels in all three gra-D mutants (P < 0.05, Table S1)

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

ANT ... expression ... in at least two gra-D mutants was more than 1.36-fold higher than that in wild-type (P < 0.05, Table S1

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

in the gra-D mutants ... the expression of ... TUB4 on chromosome 5 were normal

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

SMP2 ... expression ... in at least two gra-D mutants was more than 1.36-fold higher than that in wild-type (P < 0.05, Table S1

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

we further analyzed the expression array data. In the commonly duplicated regions, we found four cyclin genes, CYCD3;1 (At4g34160), CYCB1;1 (At4g37490), CYCB2;2 (At4g35620) and CYCD5;1 (At4g37630) (Vandepoele et al., 2002) ... The expression of these genes in at least two gra-D mutants was more than 1.36-fold higher than that in wild-type (P < 0.05, Table S1)

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

a brassinosteroid-signaling kinase BSK1 (At4g35230) (Tang et al., 2008) ... showed elevated expression levels in all three gra-D mutants (P < 0.05, Table S1)

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

we further analyzed the expression array data. In the commonly duplicated regions, we found four cyclin genes, CYCD3;1 (At4g34160), CYCB1;1 (At4g37490), CYCB2;2 (At4g35620) and CYCD5;1 (At4g37630) (Vandepoele et al., 2002) ... The expression of these genes in at least two gra-D mutants was more than 1.36-fold higher than that in wild-type (P < 0.05, Table S1)

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

At4g37760 ... was also increased in the gra-D mutants

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

the brassinosteroid receptor BRI1 (At4g39400) (Li and Chory, 1997) ... showed elevated expression levels in all three gra-D mutants (P < 0.05, Table S1)

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

RT-PCR analysis confirmed that the ANT ... transcripts were more abundant in the gra-D mutants than in the wild-type

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

in the gra-D mutants ... the expression of ARGOS, which acts upstream of ANT (Hu et al., 2003) and is located on chromosome 3 ... were normal

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

RT-PCR analysis confirmed that the ... CYCD3;1 transcripts were more abundant in the gra-D mutants than in the wild-type

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

we further analyzed the expression array data. In the commonly duplicated regions, we found four cyclin genes, CYCD3;1 (At4g34160), CYCB1;1 (At4g37490), CYCB2;2 (At4g35620) and CYCD5;1 (At4g37630) (Vandepoele et al., 2002) ... The expression of these genes in at least two gra-D mutants was more than 1.36-fold higher than that in wild-type (P < 0.05, Table S1)

Horiguchi G, Gonzalez N, Beemster GT, Inzé D, Tsukaya H - Impact of segmental chromosomal duplications on leaf size in the grandifolia-D mutants of Arabidopsis thaliana

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  • Gene expression

Immunoblot analyses ... against ... D2 ... dramatically reduced

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... ndhG ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

GUS) staining on transgenic plants expressing GUS driven by the EMB1303 promoter ... GUS activity was ... low in stems

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Semi-quantitative RT-PCR analysis showed that the levels of ... GGRS transcripts were greatly decreased in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... rbcL ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psaA ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psbG ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Semi-quantitative RT-PCR analysis showed that the levels of PORB ... transcripts were greatly decreased in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psbD ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psbE ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

we analyzed protein profile of emb1303-2. A significant reduction of the large subunit of Rubisco (RBCL) was observed by Coomassie brilliant blue staining

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Immunoblot analyses ... against ... AtpB ... dramatically reduced

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

GUS) staining on transgenic plants expressing GUS driven by the EMB1303 promoter ... GUS activity was high in ... young rosette leaves

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psbB ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Immunoblot analyses ... against ... LHCII ... barely detectable in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Semi-quantitative RT-PCR analysis showed that the levels of ... PORC ... transcripts were greatly decreased in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psbT ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psbA ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Semi-quantitative RT-PCR analysis ... CLA1 ... expression was also reduced in the mutant

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Immunoblot analyses ... against ... PsbO ... dramatically reduced

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

GUS) staining on transgenic plants expressing GUS driven by the EMB1303 promoter ... GUS activity was high in cotyledons

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

the expression of ... psaB ... reduced in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

transcript levels of accD ... remained the same in the mutant

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Immunoblot analyses ... against ... D1 ... barely detectable in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Semi-quantitative RT-PCR analysis showed that the levels of ... CAO ... transcripts were greatly decreased in emb1303-2

Huang X, Zhang X, Yang S - A novel chloroplast-localized protein EMB1303 is required for chloroplast development in Arabidopsis

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  • Gene expression

Total RNA was isolated from the first two leaves of 6-d-old wild-type and gif1/2/3 triple mutant plants, in which their cell proliferation occurred at a maximum rate, and subjected to RT-PCR. The transcript levels of ... CycB1;1 ... were significantly reduced in the triple mutant

Lee BH, Ko JH, Lee S, Lee Y, Pak JH, Kim JH - The Arabidopsis GRF-INTERACTING FACTOR gene family performs an overlapping function in determining organ size as well as multiple developmental properties

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  • Gene expression

Total RNA was isolated from the first two leaves of 6-d-old wild-type and gif1/2/3 triple mutant plants, in which their cell proliferation occurred at a maximum rate, and subjected to RT-PCR. The transcript levels of ... CycD3;1 ... were significantly reduced in the triple mutant

Lee BH, Ko JH, Lee S, Lee Y, Pak JH, Kim JH - The Arabidopsis GRF-INTERACTING FACTOR gene family performs an overlapping function in determining organ size as well as multiple developmental properties

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  • Gene expression

Total RNA was isolated from the first two leaves of 6-d-old wild-type and gif1/2/3 triple mutant plants, in which their cell proliferation occurred at a maximum rate, and subjected to RT-PCR. The transcript levels of ... a cyclin-dependent kinase gene, Cdc2b, were significantly reduced in the triple mutant

Lee BH, Ko JH, Lee S, Lee Y, Pak JH, Kim JH - The Arabidopsis GRF-INTERACTING FACTOR gene family performs an overlapping function in determining organ size as well as multiple developmental properties

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  • Gene expression

Total RNA was isolated from the first two leaves of 6-d-old wild-type and gif1/2/3 triple mutant plants, in which their cell proliferation occurred at a maximum rate, and subjected to RT-PCR ... The S-phase-specific proliferating cell nuclear antigen PCNA1 ... was remarkably down-regulated as well

Lee BH, Ko JH, Lee S, Lee Y, Pak JH, Kim JH - The Arabidopsis GRF-INTERACTING FACTOR gene family performs an overlapping function in determining organ size as well as multiple developmental properties

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  • Gene expression

In Arabidopsis, organ polarity regulation has been characterized extensively at the molecular level. We therefore have monitored the expression levels of a selection of Arabidopsis genes known to be involved in abaxial/adaxial patterning. The selection of genes comprises ... REVOLUTA ... None of the monitored Arabidopsis genes exhibited significant changes in transcript levels between wox1 prs mutant samples and the wild type

Vandenbussche M, Horstman A, Zethof J, Koes R, Rijpkema AS, Gerats T - Differential recruitment of WOX transcription factors for lateral development and organ fusion in Petunia and Arabidopsis

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  • Gene expression

In Arabidopsis, organ polarity regulation has been characterized extensively at the molecular level. We therefore have monitored the expression levels of a selection of Arabidopsis genes known to be involved in abaxial/adaxial patterning. The selection of genes comprises ... KANADI (KAN ... None of the monitored Arabidopsis genes exhibited significant changes in transcript levels between wox1 prs mutant samples and the wild type

Vandenbussche M, Horstman A, Zethof J, Koes R, Rijpkema AS, Gerats T - Differential recruitment of WOX transcription factors for lateral development and organ fusion in Petunia and Arabidopsis

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  • Gene expression

In Arabidopsis, organ polarity regulation has been characterized extensively at the molecular level. We therefore have monitored the expression levels of a selection of Arabidopsis genes known to be involved in abaxial/adaxial patterning. The selection of genes comprises ... ETTIN (ETT ... None of the monitored Arabidopsis genes exhibited significant changes in transcript levels between wox1 prs mutant samples and the wild type

Vandenbussche M, Horstman A, Zethof J, Koes R, Rijpkema AS, Gerats T - Differential recruitment of WOX transcription factors for lateral development and organ fusion in Petunia and Arabidopsis

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  • Gene expression

None of the monitored Arabidopsis genes exhibited significant changes in transcript levels between wox1 prs mutant samples and the wild type, except for the ARF4 gene, which was moderately upregulated in wox1 prs mutants (Figure 6A ). Although only a subtle effect, upregulation of the abaxial cell fate–promoting ARF4 gene is consistent with our morphological observations

Vandenbussche M, Horstman A, Zethof J, Koes R, Rijpkema AS, Gerats T - Differential recruitment of WOX transcription factors for lateral development and organ fusion in Petunia and Arabidopsis

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  • Gene expression

In Arabidopsis, organ polarity regulation has been characterized extensively at the molecular level. We therefore have monitored the expression levels of a selection of Arabidopsis genes known to be involved in abaxial/adaxial patterning. The selection of genes comprises FILAMENTOUS FLOWER/YABBY1 ... YAB1 ... None of the monitored Arabidopsis genes exhibited significant changes in transcript levels between wox1 prs mutant samples and the wild type

Vandenbussche M, Horstman A, Zethof J, Koes R, Rijpkema AS, Gerats T - Differential recruitment of WOX transcription factors for lateral development and organ fusion in Petunia and Arabidopsis

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  • Gene expression

In Arabidopsis, organ polarity regulation has been characterized extensively at the molecular level. We therefore have monitored the expression levels of a selection of Arabidopsis genes known to be involved in abaxial/adaxial patterning. The selection of genes comprises ... AS2 ... None of the monitored Arabidopsis genes exhibited significant changes in transcript levels between wox1 prs mutant samples and the wild type

Vandenbussche M, Horstman A, Zethof J, Koes R, Rijpkema AS, Gerats T - Differential recruitment of WOX transcription factors for lateral development and organ fusion in Petunia and Arabidopsis

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  • Gene expression

In Arabidopsis, organ polarity regulation has been characterized extensively at the molecular level. We therefore have monitored the expression levels of a selection of Arabidopsis genes known to be involved in abaxial/adaxial patterning. The selection of genes comprises ... ASYMMETRIC LEAVES1 (AS1 ... None of the monitored Arabidopsis genes exhibited significant changes in transcript levels between wox1 prs mutant samples and the wild type

Vandenbussche M, Horstman A, Zethof J, Koes R, Rijpkema AS, Gerats T - Differential recruitment of WOX transcription factors for lateral development and organ fusion in Petunia and Arabidopsis

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  • Gene expression

At2g39360 ... slightly upregulated by BL treatment in the wild-type

Guo H, Ye H, Li L, Yin Y - A family of receptor-like kinases are regulated by BES1 and involved in plant growth in Arabidopsis thaliana

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  • Gene expression

At2g39360 ... more clearly increased in bes1-D mutant

Guo H, Ye H, Li L, Yin Y - A family of receptor-like kinases are regulated by BES1 and involved in plant growth in Arabidopsis thaliana

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  • Gene expression

At5g24010 ... slightly upregulated by BL treatment in the wild-type

Guo H, Ye H, Li L, Yin Y - A family of receptor-like kinases are regulated by BES1 and involved in plant growth in Arabidopsis thaliana

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  • Gene expression

At1g30570 (HERK2 ... slightly upregulated by BL treatment in the wild-type

Guo H, Ye H, Li L, Yin Y - A family of receptor-like kinases are regulated by BES1 and involved in plant growth in Arabidopsis thaliana

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  • Gene expression

At1g30570 (HERK2 ... more clearly increased in bes1-D mutant

Guo H, Ye H, Li L, Yin Y - A family of receptor-like kinases are regulated by BES1 and involved in plant growth in Arabidopsis thaliana

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  • Gene expression

At5g24010 ... more clearly increased in bes1-D mutant

Guo H, Ye H, Li L, Yin Y - A family of receptor-like kinases are regulated by BES1 and involved in plant growth in Arabidopsis thaliana

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  • Gene expression

MYB23 (At5g40330 ... downregulated in the ang3 mutant

Van Minnebruggen A, Neyt P, De Groeve S, Coussens G, Ponce MR, Micol JL, Van Lijsebettens M - The ang3 mutation identified the ribosomal protein gene RPL5B with a role in cell expansion during organ growth

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  • Gene expression

We analyzed the levels of AtIPT7 transcripts in the above-ground parts of 10-day-old ... plants by real-time qRT-PCR ... the level of the transcript was 1.5-fold higher in 35S:BP plants than in the wild-type plants

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

In as1 ... levels of ETT/ARF3 transcripts are elevated ... We analyzed the levels of ETT transcripts in the shoot apices of as1-1 ... mutant plants by real-time qRT-PCR

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

the level of AtGA20ox1 transcripts in as1-1 plants was only 50% of that in the wild type

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

In as1 and as2 mutants, levels of ETT/ARF3 transcripts are elevated (Iwakawa et al., 2007; Figure 6l). We analyzed the levels of ETT transcripts in the shoot apices of ... as1-1 knat126 ... mutant plants by real-time qRT-PCR. As shown in Figure 6(l), the levels of ETT transcripts were similar in all plants examined, suggesting that the elevated levels of ETT transcripts in as1-1 and as2-1 plants were not caused by the ectopically expressed KNAT126 genes

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

We analyzed the levels of AtIPT7 transcripts in the above-ground parts of 10-day-old as1-1 mutant ... by real-time qRT-PCR. As shown in Figure 5(g), there was no obvious difference, in terms of the level of the AtIPT7 transcript, between wild-type and mutant plants

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

We analyzed the levels of AtGA20ox1 transcripts in the aerial parts of ... as1-1 plus knat126 mutant plants by real-time quantitative RT-PCR ... When a mutation in each KNAT126 gene was introduced separately into as1-1 plants, the level of the transcript returned to close to control values. These results suggest that the ectopically expressed KNAT126 genes in as1-1 plants might repress the expression of AtGA20ox1 in a redundant manner

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

In ... as2 mutants, levels of ETT/ARF3 transcripts are elevated ... We analyzed the levels of ETT transcripts in the shoot apices of ... as2-1 ... mutant plants by real-time qRT-PCR

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

We analyzed the levels of AtIPT7 transcripts in the above-ground parts of 10-day-old ... as1-1 plus knat126 mutant plants by real-time qRT-PCR. As shown in Figure 5(g), there was no obvious difference, in terms of the level of the AtIPT7 transcript, between wild-type and mutant plants

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

In as1 and as2 mutants, levels of ETT/ARF3 transcripts are elevated (Iwakawa et al., 2007; Figure 6l). We analyzed the levels of ETT transcripts in the shoot apices of ... as2-1 knat126 mutant plants by real-time qRT-PCR. As shown in Figure 6(l), the levels of ETT transcripts were similar in all plants examined, suggesting that the elevated levels of ETT transcripts in as1-1 and as2-1 plants were not caused by the ectopically expressed KNAT126 genes

Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y - Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events

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  • Gene expression

To determine the expression pattern of SMO2, we generated transgenic plants expressing a pSMO2:GUS fusion gene and examined GUS activities in seedlings and developing organs ... strong GUS staining was observed ... in leaf

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

To determine the expression pattern of SMO2, we generated transgenic plants expressing a pSMO2:GUS fusion gene and examined GUS activities in seedlings and developing organs ... strong GUS staining was observed in shoot ... meristem

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

we ... examined the expression of five cell cycle checkpoint-related genes in WT and smo2, including ... HISTONE H4 ... by real-time quantitative reverse-transcriptional polymerase chain reaction (qRT-PCR), and found that the expression ... was elevated in the smo2 mutant

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

we ... examined the expression of five cell cycle checkpoint-related genes in WT and smo2, including ... CYCA1;1 ... by real-time quantitative reverse-transcriptional polymerase chain reaction (qRT-PCR), and found that the expression ... was elevated in the smo2 mutant

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

No transcript of At1g22270 was detected in smo2 plants by RT-PCR analysis

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

we introduced a pCYCB1;1:Dbox-GUS construct into smo2 ... the most dramatic accumulation of CYCB1;1:GUS protein was observed in smo2 ... juvenile leaves

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

we introduced a pCYCB1;1:Dbox-GUS construct into smo2 ... the most dramatic accumulation of CYCB1;1:GUS protein was observed in smo2 leaf primordia

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

we ... examined the expression of five cell cycle checkpoint-related genes in WT and smo2, including ... CYCB1;1, by real-time quantitative reverse-transcriptional polymerase chain reaction (qRT-PCR), and found that the expression ... was elevated in the smo2 mutant

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

To determine the expression pattern of SMO2, we generated transgenic plants expressing a pSMO2:GUS fusion gene and examined GUS activities in seedlings and developing organs ... a moderate level of GUS expression was detected in the cotyledon vascular bundles

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

we ... examined the expression of five cell cycle checkpoint-related genes in WT and smo2, including ... CYCB2;3 ... by real-time quantitative reverse-transcriptional polymerase chain reaction (qRT-PCR), and found that the expression ... was elevated in the smo2 mutant

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

we ... examined the expression of five cell cycle checkpoint-related genes in WT and smo2, including CYCD3;1 ... by real-time quantitative reverse-transcriptional polymerase chain reaction (qRT-PCR), and found that the expression ... was elevated in the smo2 mutant

Hu Z, Qin Z, Wang M, Xu C, Feng G, Liu J, Meng Z, Hu Y - The Arabidopsis SMO2, a homologue of yeast TRM112, modulates progression of cell division during organ growth

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  • Gene expression

FLC transcript levels were reduced in the ... spt16-2

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

The SSRP1 and SPT16 protein levels were also analysed by immunoblotting ... The amount of SSRP1 was slightly reduced in the spt16 lines

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

in the ssrp1-2 ... increased level of SOC1 transcript was detected

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

SSRP1 is not reduced in spt16

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

FLC transcript levels were reduced in the ssrp1-2

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

in the ... spt16-1 ... increased level of SOC1 transcript was detected

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

in the ... spt16-2 ... increased level of SOC1 transcript was detected

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

FLC transcript levels were reduced in the ... spt16-1

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

the transcript level of SPT16 is not reduced in ssrp1-2

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

The SSRP1 and SPT16 protein levels were also analysed by immunoblotting ... the amount of SPT16 was reduced in ... ssrp1-2

Lolas IB, Himanen K, Grønlund JT, Lynggaard C, Houben A, Melzer M, Van Lijsebettens M, Grasser KD - The transcript elongation factor FACT affects Arabidopsis vegetative and reproductive development and genetically interacts with HUB1/2

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  • Gene expression

decrease in the level of miR396-regulated GRFs during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

weak expression of miR396 at ... leaf primordia

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRFs by RT-qPCR ... were expressed during the early stages of leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRF2:wtGRF2-GUS ... At later stages of development ... reporter activity ... tapered off towards the distal part of the leaf

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

During the initial stages of leaf development, the wild-type GRF2 reporter displayed a high and homogeneous level of expression

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

MIR396b ... increased tenfold

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in soj8 ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

soj8 to the GRF2:wtGRF2-GUS plants and observed that the reporter was turned off sooner in the mutant than in wild-type plants

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

decrease in the level of miR396-regulated GRFs during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRFs by RT-qPCR ... were expressed during the early stages of leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of GRF5 ... decreased in soj8

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in ... weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

in situ hybridization on sections of 15-day-old plants grown in short photoperiods ... expression of GRF2 in ... young developing leaves

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

CYCLINB1;1 (CYCB1;1 ... expression of these cell cycle markers decreased in a similar way to the GRFs during early leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

We then measured the levels of the GRFs in 35S:miR396b stable transgenics by RT-qPCR ... high levels of miR396 caused a reduction in the expression of the miRNA-regulated transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

decrease in the level of miR396-regulated GRFs during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

weak expression of miR396 at the SAM

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in ... weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

at intermediate developmental stages, the wild-type GRF2 reporter showed a proximo-distal gradient of expression

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

decrease in the level of miR396-regulated GRFs during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miR396 overexpression ... GRF6 expression was decreased

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in ... weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of miR396 and found that they were increased two- to three-fold in the apices of soj8

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

aerial parts of ... 10-day-old ... KNOLLE ... downregulated in 35S:miR396b

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRF2:wtGRF2-GUS ... we did not observe activity of the wild-type GRF2 reporter in fully expanded leaves

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

decrease in the level of miR396-regulated GRFs during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

in situ hybridization on sections of 15-day-old plants grown in short photoperiods. We detected miR396 throughout the SAM

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRF5 ... similar expression pattern to the miR396-regulated transcription factors during organ growth

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of ... GIF1 ... decreased in soj8

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

Small RNA blots confirmed that miR396 accumulated to higher levels in the distal part of the leaf

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

at intermediate developmental stages ... miRNA-resistant GRF2 reporter ... was expressed throughout the leaf

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

at seedling stage ... wild-type ... transgenes raised the GRF2 mRNA level several fold

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRFs by RT-qPCR ... were expressed during the early stages of leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRFs by RT-qPCR ... were expressed during the early stages of leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

in situ hybridization on sections of 15-day-old plants grown in short photoperiods. We detected miR396 throughout the ... leaf primordia

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in soj8 ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in ... weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miR396 overexpression ... GRF5 was largely unaffected

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

these results indicated that miR396 accumulates during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in soj8 ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

fifth rosette leaf ... at three-day intervals, starting from the day that it first became visible (~1 mm) to the naked eye, which was 16 days after sowing (DAS ... small RNA blots ... miR396 was expressed at low levels in young leaves ... and that it steadily accumulated during the development of the organ

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRF2:wtGRF2-GUS was strongly expressed in young leaves

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of miR396 and found that they were increased two- to three-fold in the apices of soj8

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRF6 ... similar expression pattern to the miR396-regulated transcription factors during organ growth

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

CYCB1;1 in plants overexpressing miR396 and observed that high levels of the miRNA greatly reduced the number of CYCB1;1 positive cells in developing leaves

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

these results indicated that miR396 accumulates during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

Small RNA blots confirmed that miR396 accumulated to higher levels in the distal part of the leaf

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

weak expression of miR396 at the SAM

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

expression domain of GRF2:rGRF2-GUS was extended in the leaves of 14 out of 20 T1 lines (Fig. 2C), indicating that the GRF2 promoter is apparently uniformly active throughout young leaves

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

weak expression of miR396 at ... leaf primordia

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

We then measured the levels of the GRFs in 35S:miR396b stable transgenics by RT-qPCR ... high levels of miR396 caused a reduction in the expression of the miRNA-regulated transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

We then measured the levels of the GRFs in 35S:miR396b stable transgenics by RT-qPCR ... high levels of miR396 caused a reduction in the expression of the miRNA-regulated transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

KNOLLE ... expression of these cell cycle markers decreased in a similar way to the GRFs during early leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in ... weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRFs by RT-qPCR ... were expressed during the early stages of leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miR396 ... was expressed at the highest level in the oldest leaf

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miR396 ... was expressed at the highest level in the oldest leaf

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in soj8 ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of ... GRF6 ... decreased in soj8

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

MIR396a precursor ... was also upregulated during organogenesis

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

RT-qPCR ... miR396 levels increased up to 30-fold during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

decrease in the level of miR396-regulated GRFs during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of ... GRF6 ... decreased in ... rTCP4

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

wild-type GRF2 reporter ... in mature leaves ... was turned off

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of miR396 and found that they were increased two- to three-fold in the apices of ... TCP:rTCP4-GFP (rTCP4

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

We then measured the levels of the GRFs in 35S:miR396b stable transgenics by RT-qPCR ... high levels of miR396 caused a reduction in the expression of the miRNA-regulated transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRF2:wtGRF2-GUS ... At later stages of development, reporter activity was detected mainly at the base of the leaf, with a gradient that tapered off towards the distal part of the leaf

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

in situ hybridization on sections of 15-day-old plants grown in short photoperiods. We detected miR396 throughout the SAM

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

NULL

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of miR396 and found that they were increased two- to three-fold in the apices of ... TCP:rTCP4-GFP (rTCP4

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in soj8 ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

in situ hybridization on sections of 15-day-old plants grown in short photoperiods ... expression of GRF2 in the meristem

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRFs by RT-qPCR ... were expressed during the early stages of leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

decrease in the level of miR396-regulated GRFs during leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in ... weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

in situ hybridization on sections of 15-day-old plants grown in short photoperiods. We detected miR396 throughout the ... leaf primordia

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

at seedling stage ... rGRF2 version led to higher levels of mRNA accumulation compared to the wild-type transgene, up to 20-fold

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

We then measured the levels of the GRFs in 35S:miR396b stable transgenics by RT-qPCR ... high levels of miR396 caused a reduction in the expression of the miRNA-regulated transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

MIR396a ... increased tenfold

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in soj8 ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of GRF5 ... decreased in ... rTCP4

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

fifth rosette leaf at three-day intervals, starting from the day that it first became visible (~1 mm) to the naked eye, which was 16 days after sowing (DAS ... small RNA blots ... miR396 was expressed at low levels in young leaves and that it steadily accumulated during the development of the organ

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

We then measured the levels of the GRFs in 35S:miR396b stable transgenics by RT-qPCR ... high levels of miR396 caused a reduction in the expression of the miRNA-regulated transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in soj8 ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

levels of ... GIF1 ... decreased in ... rTCP4

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

We then measured the levels of the GRFs in 35S:miR396b stable transgenics by RT-qPCR ... high levels of miR396 caused a reduction in the expression of the miRNA-regulated transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

miRNA-regulated GRFs in ... weak rTCP4 transgenic plants ... reduction in the levels of these transcription factors

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

GRFs by RT-qPCR ... were expressed during the early stages of leaf development

Rodriguez RE, Mecchia MA, Debernardi JM, Schommer C, Weigel D, Palatnik JF - Control of cell proliferation in Arabidopsis thaliana by microRNA miR396

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  • Gene expression

SPT expression was ... weakly detected in mature leaves

Ichihashi Y, Horiguchi G, Gleissberg S, Tsukaya H - The bHLH transcription factor SPATULA controls final leaf size in Arabidopsis thaliana

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  • Gene expression

we also found that an3 mutations slightly, but reproducibly, decreased the expression of AtGRF6

Ichihashi Y, Horiguchi G, Gleissberg S, Tsukaya H - The bHLH transcription factor SPATULA controls final leaf size in Arabidopsis thaliana

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  • Gene expression

SPT expression was strongly detected in shoot tips that include young leaf primordia

Ichihashi Y, Horiguchi G, Gleissberg S, Tsukaya H - The bHLH transcription factor SPATULA controls final leaf size in Arabidopsis thaliana

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  • Gene expression

we also found that an3 mutations slightly, but reproducibly, decreased the expression of ... AtGRF9

Ichihashi Y, Horiguchi G, Gleissberg S, Tsukaya H - The bHLH transcription factor SPATULA controls final leaf size in Arabidopsis thaliana

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  • Gene expression

applying exogenous auxin ... We observed a reduced response of the DR5-GUS reporter in the leaves of ron1-1 DR5-GUS plants compared with the response of a nonmutant control

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

DR5-GUS expression ... in ron1-1 leaf primordia ... was consistently reduced compared with the wild type

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

RON1/FRY1 is expressed in ... the leaves

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

RON1/FRY1 ... highest expression signal detected in the leaves occurs in the veins

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

DR5-GUS expression was weak ... at the basal portion of ron1-1 leaves

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

In ron1-1 leaves, ATHB-8-GUS revealed an open network with supernumerary free-ending veins

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

DR5-GUS expression ... in ron1-1 leaf primordia ... was ... confined to the apical region

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

RON1 is overexpressed (1.3- to 2.7-fold change) in the continuous vascular ring1 mutant

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

DR5-GUS expression ... in ron1-1 ... leaf ... persisted in the apex and appeared as a network only in the proximal portion of the leaf

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

RON1/FRY1 is expressed in ... stems

Robles P, Fleury D, Candela H, Cnops G, Alonso-Peral MM, Anami S, Falcone A, Caldana C, Willmitzer L, Ponce MR, Van Lijsebettens M, Micol JL - The RON1/FRY1/SAL1 gene is required for leaf morphogenesis and venation patterning in Arabidopsis

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  • Gene expression

expression of ... BRCA ... was hyper-induced in etg1-1 ctf18-1 double mutant plants

Takahashi N, Quimbaya M, Schubert V, Lammens T, Vandepoele K, Schubert I, Matsui M, Inzé D, Berx G, De Veylder L - The MCM-binding protein ETG1 aids sister chromatid cohesion required for postreplicative homologous recombination repair

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  • Gene expression

The spatial expression pattern of CTF18 was analyzed in more than six independent transgenic lines expressing the ß-glucuronidase (GUS) reporter gene under control of the CTF18 promoter. In 7-day-old seedlings, the levels of CTF18 expression were high at the shoot apical and root meristems (Figure 3C and 3D), corresponding with an anticipated role for CTF18 during cell cycle progression

Takahashi N, Quimbaya M, Schubert V, Lammens T, Vandepoele K, Schubert I, Matsui M, Inzé D, Berx G, De Veylder L - The MCM-binding protein ETG1 aids sister chromatid cohesion required for postreplicative homologous recombination repair

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  • Gene expression

Transcriptional activation of the Arabidopsis CTF18 gene in E2Fa-DPa-overexpressing plants was confirmed by quantitative real-time PCR analysis

Takahashi N, Quimbaya M, Schubert V, Lammens T, Vandepoele K, Schubert I, Matsui M, Inzé D, Berx G, De Veylder L - The MCM-binding protein ETG1 aids sister chromatid cohesion required for postreplicative homologous recombination repair

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  • Gene expression

expression of ... CYCB1;1 ... was hyper-induced in etg1-1 ctf18-1 double mutant plants

Takahashi N, Quimbaya M, Schubert V, Lammens T, Vandepoele K, Schubert I, Matsui M, Inzé D, Berx G, De Veylder L - The MCM-binding protein ETG1 aids sister chromatid cohesion required for postreplicative homologous recombination repair

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  • Gene expression

expression of the PARP2 ... was hyper-induced in etg1-1 ctf18-1 double mutant plants

Takahashi N, Quimbaya M, Schubert V, Lammens T, Vandepoele K, Schubert I, Matsui M, Inzé D, Berx G, De Veylder L - The MCM-binding protein ETG1 aids sister chromatid cohesion required for postreplicative homologous recombination repair

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  • Gene expression

Unlike AS1, AS2 was not ectopically expressed in stm-11 embryos until the torpedo stage. In bent-cotyledon stage wild-type embryos, AS2 expression was restricted to the adaxial region of the cotyledons (Figures 7E and 7F). In stm-11 embryos, AS2 was ectopically expressed at the junction between the fused cotyledons, where the SAM would normally have formed (Figures 7G and 7H; see Supplemental Table 2 online). Because ectopic activation of AS2 was observed only after the stm phenotype was manifested, this result indicates that AS2 expression is not directly regulated by STM, but rather by another factor functional in the SAM

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

in ... bop1-4 bop2-11 embryos, AS2pro:GUS activity was not detected in the proximal domain of the cotyledons near the SAM (Figures 5B, 5C, 5E, and 5F). Sagittal views confirm that GUS staining was absent from the proximal domain of bop embryonic cotyledons

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

A dual subcellular localization pattern has also been observed for BOP2 (Hepworth et al., 2005), and we likewise detected BOP1-green fluorescent protein fusions in both the nucleus and the cytoplasm

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

Next, we analyzed AS2pro:GUS activity at the vegetative stage. Compared with wild-type seedlings (Figure 5M; see Supplemental Figures 6A and 6B online), GUS activity was reduced or absent in the leaf base of ... bop1-1 ... seedlings ... This region corresponds to the BOP1 and BOP2 expression domains

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

NPR1 has a dual nuclear and cytoplasmic subcellular localization pattern

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

Next, we analyzed AS2pro:GUS activity at the vegetative stage. Compared with wild-type seedlings (Figure 5M; see Supplemental Figures 6A and 6B online), GUS activity was reduced or absent in the leaf base of ... bop1-4 bop2-11 seedlings ... This region corresponds to the BOP1 and BOP2 expression domains

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

When fused to a GUS reporter, this BOP1 promoter sequence drives strong GUS activity at the base of the cotyledons and leaves, recapitulating the native BOP1 expression domain

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

BP expression was expanded into the presumptive junction between the hypocotyl and cotyledon base (Figure 7T; see Supplemental Figures 9B and 9C online), the area corresponding to the region of de novo shoot meristem generation in stm-11 bop1-4 bop2-11 seedlings

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

In as1-1 ... embryos, ectopic BP expression was observed in the basal region of the cotyledons and flanking the SAM

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

We found that AS2 ... mRNA levels were elevated within 4 and 24 h ... of Dex induction in 35Spro:BOP1-GR bop1-1 ... AS2 expression was induced as early as 1 h after Dex application and continuously increased over the 24-h time course

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

in bop1-1 ... embryos, AS2pro:GUS activity was not detected in the proximal domain of the cotyledons near the SAM (Figures 5B, 5C, 5E, and 5F). Sagittal views confirm that GUS staining was absent from the proximal domain of bop embryonic cotyledons

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

We found that ... ASL4/LOB mRNA levels were elevated within 4 and 24 h ... of Dex induction in 35Spro:BOP1-GR bop1-1 ... over the 24-h time course ... increased ASL4/LOB expression only became detectable 4 to 8 h after induction

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

A dual subcellular localization pattern has also been observed for BOP2 (Hepworth et al., 2005), and we likewise detected BOP1-green fluorescent protein fusions in both the nucleus and the cytoplasm

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

In ... as2-1 embryos, ectopic BP expression was observed in the basal region of the cotyledons and flanking the SAM

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

After 2 h of BOP1 induction, AS2pro:GUS activity in 35Spro:BOP1-GR bop1-1 plants was elevated in developing leaves and expanded more distally into the blade of mature leaves (Figure 3D). After 24 h of induction, ectopic GUS activity was observed throughout the blades of mature leaves and the base of the cotyledons

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

NPR1 has a dual nuclear and cytoplasmic subcellular localization pattern

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

ectopic BP expression was not observed flanking the shoot apex in bop1-4 bop2-11 embryos

Jun JH, Ha CM, Fletcher JC - BLADE-ON-PETIOLE1 coordinates organ determinacy and axial polarity in arabidopsis by directly activating ASYMMETRIC LEAVES2

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  • Gene expression

To map the expression of SPATULA throughout the developing plant, a sequence of 6253 bp upstream of the start of transcription to 313 bp downstream was translationally fused to the GUS reporter gene and transformed into wild-type plants ... In germinating seeds (Fig. 1T–Y), expression was first detected 2 d after imbibition of aged seeds (Fig. 1V), and was strong throughout the hypocotyl and cotyledons, and later in the cotyledon's vasculature

Groszmann M, Bylstra Y, Lampugnani ER, Smyth DR - Regulation of tissue-specific expression of SPATULA, a bHLH gene involved in carpel development, seedling germination, and lateral organ growth in Arabidopsis

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  • Gene expression

expression of SPATULA ... As leaf primordia developed, expression was associated with the developing vasculature, and in basal margins (Fig. 1R; see Supplementary Fig. S1 at JXB online). In older developing leaves, continuous expression was seen in basal regions (Fig. 1R, S), and it also occurred in the phloem, hydathodes, and stomata (see Supplementary Fig. 1S at JXB online), falling away as the leaves matured

Groszmann M, Bylstra Y, Lampugnani ER, Smyth DR - Regulation of tissue-specific expression of SPATULA, a bHLH gene involved in carpel development, seedling germination, and lateral organ growth in Arabidopsis

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  • Gene expression

expression of SPATULA ... As seedlings developed, strong expression was observed in the shoot meristem (Fig. 1R), and later in the inflorescence meristem as well

Groszmann M, Bylstra Y, Lampugnani ER, Smyth DR - Regulation of tissue-specific expression of SPATULA, a bHLH gene involved in carpel development, seedling germination, and lateral organ growth in Arabidopsis

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  • Gene expression

SPATULA ... Expression in newly arising leaf primordia did not extend throughout (Fig. 1Y), but was localized to two medial regions, adjacent to and distant from the meristem

Groszmann M, Bylstra Y, Lampugnani ER, Smyth DR - Regulation of tissue-specific expression of SPATULA, a bHLH gene involved in carpel development, seedling germination, and lateral organ growth in Arabidopsis

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  • Gene expression

To map the expression of SPATULA throughout the developing plant, a sequence of 6253 bp upstream of the start of transcription to 313 bp downstream was translationally fused to the GUS reporter gene and transformed into wild-type plants ... It was observed in the developing embryo from the transition stage through the heart stage, confined to the basal half (Fig. 1N, O). By the torpedo stage it had become concentrated in the developing root meristem and the procambium of the future hypocotyl, and in the newly arisen shoot apical meristem

Groszmann M, Bylstra Y, Lampugnani ER, Smyth DR - Regulation of tissue-specific expression of SPATULA, a bHLH gene involved in carpel development, seedling germination, and lateral organ growth in Arabidopsis

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  • Gene expression

NINJA expression is induced by methyl jasmonate (MeJA) within 1 h and for at least 12 h after elicitation

Pauwels L, Barbero GF, Geerinck J, Tilleman S, Grunewald W, Pérez AC, Chico JM, Bossche RV, Sewell J, Gil E, García-Casado G, Witters E, Inzé D, Long JA, De Jaeger G, Solano R, Goossens A - NINJA connects the co-repressor TOPLESS to jasmonate signalling

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  • Gene expression

Analysis of seedlings producing a C-terminal GFP fusion with NINJA revealed a clear nuclear localization for NINJA

Pauwels L, Barbero GF, Geerinck J, Tilleman S, Grunewald W, Pérez AC, Chico JM, Bossche RV, Sewell J, Gil E, García-Casado G, Witters E, Inzé D, Long JA, De Jaeger G, Solano R, Goossens A - NINJA connects the co-repressor TOPLESS to jasmonate signalling

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  • Gene expression

In the rps6b mutant a signal is detected

Creff A, Sormani R, Desnos T - The two Arabidopsis RPS6 genes, encoding for cytoplasmic ribosomal proteins S6, are functionally equivalent

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  • Gene expression

the RPS6 signal in rps6b seedlings is close to the WT level

Creff A, Sormani R, Desnos T - The two Arabidopsis RPS6 genes, encoding for cytoplasmic ribosomal proteins S6, are functionally equivalent

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  • Gene expression

In the rps6a mutant the RPS6 signal intensity is only ~15% of the WT level

Creff A, Sormani R, Desnos T - The two Arabidopsis RPS6 genes, encoding for cytoplasmic ribosomal proteins S6, are functionally equivalent

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  • Gene expression

in the rps6a mutant no RPS6A mRNA is detected

Creff A, Sormani R, Desnos T - The two Arabidopsis RPS6 genes, encoding for cytoplasmic ribosomal proteins S6, are functionally equivalent

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  • Gene expression

BP ... expression levels were also higher in fil yab3 leaves than in wild type and bop1 bop2 leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

We first confirmed that the steady-state expression levels of ... KNAT6 were higher in bop1 bop2 leaves than in wild-type leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT6 ... expression ... was much higher in bop1 bop2 fil yab3 leaves than either bop1 bop2 or fil yab3 leaves (Figure 4A). This result indicates that the BOP and YAB genes act separately to repress KNOX1 transcription in leaf primordia

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

In bop1 bop2 fil yab3 quadruple mutant leaves, BP::GUS activity was detected in ... the hydathodes

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT6 ... expression levels in ... bop1 bop2 yab3 leaves were similar to those in bop1 bop2 leaves (Figure 4A), demonstrating that suppression of the bop1 bop2 ectopic outgrowth phenotype by ... yab3 is not caused by a reduction in ectopic KNOX1 expression

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT2 ... expression levels were also higher in fil yab3 leaves than in wild type and bop1 bop2 leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

BP ... expression ... was much higher in bop1 bop2 fil yab3 leaves than either bop1 bop2 or fil yab3 leaves (Figure 4A). This result indicates that the BOP and YAB genes act separately to repress KNOX1 transcription in leaf primordia

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

In fil yab3 leaves, BP::GUS activity was detected strongly in the petiole and more weakly in the vasculature and hydathodes (Figure 4, D and E, arrowheads), and in the distal region of bifurcated leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

bop1 bop2 yab3 leaves had strong BP::GUS activity restricted to the proximal region of the petiole (Figure 4, F and G), similar to bop1 bop2 leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

In fil yab3 leaves, BP::GUS activity was detected strongly in the petiole and more weakly in the vasculature and hydathodes (Figure 4, D and E, arrowheads), and in the distal region of bifurcated leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

bop1 bop2 fil ... leaves had strong BP::GUS activity restricted to the proximal region of the petiole (Figure 4, F and G), similar to bop1 bop2 leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT6 ... expression levels in bop1 bop2 fil ... leaves were similar to those in bop1 bop2 leaves (Figure 4A), demonstrating that suppression of the bop1 bop2 ectopic outgrowth phenotype by fil ... is not caused by a reduction in ectopic KNOX1 expression

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

We first confirmed that the steady-state expression levels of ... KNAT2 ... were higher in bop1 bop2 leaves than in wild-type leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

In bop1 bop2 fil yab3 quadruple mutant leaves, BP::GUS activity was detected in a broader domain than in double- and triple-mutant leaves. In addition to the proximal petiole, the petiole and blade vasculature, the hydathodes and the distal region of bifurcated leaves (Figure 4, H and I), bop1 bop2 fil yab3 leaves also showed strong BP::GUS activity in the ectopic organs along the petiole (Figure 4J, arrows). Thus KNOX1 expression is both strongly elevated and spatially expanded in bop1 bop2 fil yab3 leaves, and thus may play an important role in conditioning the extensive ectopic organ development seen in bop1 bop2 fil yab3 leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

BP ... expression levels in bop1 bop2 fil ... leaves were similar to those in bop1 bop2 leaves (Figure 4A), demonstrating that suppression of the bop1 bop2 ectopic outgrowth phenotype by fil ... is not caused by a reduction in ectopic KNOX1 expression

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT2 ... expression levels in ... bop1 bop2 yab3 leaves were similar to those in bop1 bop2 leaves (Figure 4A), demonstrating that suppression of the bop1 bop2 ectopic outgrowth phenotype by ... yab3 is not caused by a reduction in ectopic KNOX1 expression

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

We first confirmed that the steady-state expression levels of BP ... were higher in bop1 bop2 leaves than in wild-type leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT6 ... expression levels were also higher in fil yab3 leaves than in wild type and bop1 bop2 leaves

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT2 ... expression levels in bop1 bop2 fil ... leaves were similar to those in bop1 bop2 leaves (Figure 4A), demonstrating that suppression of the bop1 bop2 ectopic outgrowth phenotype by fil ... is not caused by a reduction in ectopic KNOX1 expression

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

KNAT2 ... expression ... was much higher in bop1 bop2 fil yab3 leaves than either bop1 bop2 or fil yab3 leaves (Figure 4A). This result indicates that the BOP and YAB genes act separately to repress KNOX1 transcription in leaf primordia

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

In bop1 bop2 fil yab3 quadruple mutant leaves, BP::GUS activity was detected in ... the petiole and blade vasculature

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

Compared to wild-type leaves, bop1 bop2 leaves exhibited stronger and more distally expanded BP::GUS activity in the petiole

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

BP ... expression levels in ... bop1 bop2 yab3 leaves were similar to those in bop1 bop2 leaves ... demonstrating that suppression of the bop1 bop2 ectopic outgrowth phenotype by ... yab3 is not caused by a reduction in ectopic KNOX1 expression

Ha CM, Jun JH, Fletcher JC - Control of Arabidopsis leaf morphogenesis through regulation of the YABBY and KNOX families of transcription factors

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  • Gene expression

At4g35760 ... Transcripts were also detected in cotyledons, siliques and flowers, although at much lower levels than in leaves, and were undetectable in roots

Furt F, Oostende Cv, Widhalm JR, Dale MA, Wertz J, Basset GJ - A bimodular oxidoreductase mediates the specific reduction of phylloquinone (vitamin K1) in chloroplasts

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  • Gene expression

At4g35760 protein ... was most abundant in cauline and rosette leaves, with lower levels in cotyledons and stems, and was barely detectable in green siliques

Furt F, Oostende Cv, Widhalm JR, Dale MA, Wertz J, Basset GJ - A bimodular oxidoreductase mediates the specific reduction of phylloquinone (vitamin K1) in chloroplasts

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  • Gene expression

Analyses of mRNA levels using semiquantitative RT-PCR showed that the transcripts of At4g35760 were most abundant in cauline and mature leaves, and stems

Furt F, Oostende Cv, Widhalm JR, Dale MA, Wertz J, Basset GJ - A bimodular oxidoreductase mediates the specific reduction of phylloquinone (vitamin K1) in chloroplasts

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  • Gene expression

To obtain experimental evidence for such a plastid localization, the full-length cDNA of the Arabidopsis homolog was fused to the N terminus of the GFP reporter protein and transiently expressed in tobacco mesophyll cells (Figure 2). The green fluorescence of the GFP construct resulted in a distinctive punctate pattern that co-localized with the red autofluorescence of chlorophyll in plastids (Figure 2a–c), whereas the GFP-only control displayed fluorescence confined to the cytoplasm and the nucleus (Figure 2d–f ... Subcellular localization of At4g35760

Furt F, Oostende Cv, Widhalm JR, Dale MA, Wertz J, Basset GJ - A bimodular oxidoreductase mediates the specific reduction of phylloquinone (vitamin K1) in chloroplasts

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  • Gene expression

Attempts to express Arabidopsis VKORC1-Trx-like in Escherichia coli were unsuccessful (data not shown). On the other hand, expression of a 6Xhis-tagged version of its Trx-like domain alone (L231 [RIGHTWARDS ARROW] M) in E. coli BL21-codonPlus cells resulted in the production of large quantities of soluble recombinant protein (data not shown). A polyclonal antiserum was raised against this recombinant moiety and used to probe immunoblots corresponding to the same organs than those analyzed for transcript levels (Figure 3b). A 35-kDa immunosignal corresponding to the calculated mass of the At4g35760 protein minus its chloroplast targeting pre-sequence was detected in all organs tested but flowers and roots. In agreement with the transcript levels, the protein was most abundant in cauline and rosette leaves

Furt F, Oostende Cv, Widhalm JR, Dale MA, Wertz J, Basset GJ - A bimodular oxidoreductase mediates the specific reduction of phylloquinone (vitamin K1) in chloroplasts

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  • Gene expression

the transcript levels of the class-II ... rrn16 ... were found to be decreased ... in the ... sig6 ... mutant plants

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

the transcript levels of the class-II genes, ... rrn16 ... were found to be decreased ... in the ... sig6 dg1 mutants

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

On the other hand, the transcript levels of NEP-dependent genes were obviously increased in dg1 mutants compared with wild-type plants (Figure 4); however, their run-on transcription activities were less changed

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

the transcript levels of the class-II genes ... rrn23 ... were found to be decreased ... in the dg1 ... mutant plants

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

Expression of either DG1 or SIG6 enhanced the transcript accumulation of the PEP-dependent genes in the dg1 protoplasts

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

As shown in Figure 6d, the psbA transcript levels of the 35S:SIG6 dg1 lines were comparable with those of wild-type plants

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

psbC levels of ... dg1 were reduced to about 20% of the wild-type levels

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

the transcript levels of the class-II ... rrn16 ... were found to be decreased ... in the dg1 ... mutant plants

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

Northern blot analysis showed that the psbA transcript levels in sig6/SIG6 dg1 plants are about 20% and threefold of those of dg1 and double mutants, respectively

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

As shown in Figure 5, the transcription activities of accD, clpP and rpoB appear to be slightly altered in the mutant (rpoB increased, and accD and clpP decreased by less than 10%, respectively), whereas those of psbA, psbB and rrn16 were reduced more than 10-fold in the mutants compared with the wild type. These results indicated that the changes in transcription activity may account for the reduced accumulation of PEP-dependent chloroplast gene transcripts in dg1

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

the psbC levels of sig6 and dg1 were reduced to about 20% of the wild-type levels, whereas that of the double mutant was reduced to about 10% of the wild-type level

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

In the sig6 dg1 protoplasts, only the expression of SIG6 can induce the accumulation of PEP-dependent gene transcripts

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

psbC levels of sig6 ... were reduced to about 20% of the wild-type levels

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

the transcript levels of the class-II genes ... rrn23 ... were found to be decreased ... in the ... sig6 ... mutant plants

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

In the sig6 protoplasts, expression of SIG6 led to a drastic increase in the levels of PEP-dependent chloroplast gene transcripts, whereas expression of DG1 did not increase the levels of these transcripts

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

When SIG1 was fused to the intact YFP moieties, YFP fluorescence was observed in the chloroplast of the protoplasts (Figure 1b), which suggested that SIG1-fused protein was expressed and properly localized in the chloroplast

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

the transcript levels of the class-II genes ... rrn23 ... were found to be decreased ... in the ... sig6 dg1 mutants

Chi W, Mao J, Li Q, Ji D, Zou M, Lu C, Zhang L - Interaction of the pentatricopeptide-repeat protein DELAYED GREENING 1 with sigma factor SIG6 in the regulation of chloroplast gene expression in Arabidopsis cotyledons

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  • Gene expression

pYAB2:GUS ... expressed in the abaxial domain of lateral organs

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

YAB5:GUS construct ... strongest expression in the ... midrib region

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

YABBY triple mutants display reduced expression of ... AS2

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

pYAB2:GUS construct was most pronounced in the ... midrib region

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

YABBY triple mutants display reduced expression of ... ARF4

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

pYAB5:GUS ... expressed in the abaxial domain of lateral organs

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

YABBY triple mutants display reduced expression of ... REV

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

pYAB5:GUS construct ... strongest expression in the petiole

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

YABBY triple mutants display reduced expression of ... PHB

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

enhancer trap line (YJ158) that displays GUS activity in leaf margin cells ... in pANT>>miR-YAB13 leaves, GUS activity was weak, patchy, and mostly distal

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

pYAB2:GUS construct was most pronounced in the petiole

Sarojam R, Sappl PG, Goldshmidt A, Efroni I, Floyd SK, Eshed Y, Bowman JL - Differentiating Arabidopsis shoots from leaves by combined YABBY activities

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  • Gene expression

To gain further insight into the function of TPS1 during normal development, we produced 24 independent transformants expressing the GUS reporter gene under the control of a 2 kb promoter region of the AtTPS1 gene. In all transformants, GUS expression during embryo development was similar to that reported by van Dijken et al. (2004) with staining concentrated in the meristematic region

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

we found that transcript abundance of ... RAB18 ... increased in ABI3::TPS1 tps1/tps1 plantlets compared with wild-type plants

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

Transcript levels of APL3, which encodes one of the four isoforms of the large subunit of ADP glucose pyrophosphorylase, a key enzyme in starch synthesis, are more than two times higher in ABI3::TPS1 tps1/tps1 plantlets compared with the wild type

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

we found that transcript abundance of ... EM1 ... increased in ABI3::TPS1 tps1/tps1 plantlets compared with wild-type plants

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

SUCROSE PHOSPHATE SYNTHASE (SPS) gene At4g10120 ... decreased in ABI3::TPS1 tps1/tps1 compared with wild-type plants of the same age

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

To gain further insight into the function of TPS1 during normal development, we produced 24 independent transformants expressing the GUS reporter gene under the control of a 2 kb promoter region of the AtTPS1 gene ... We also observed GUS expression in young seedlings with the first true leaves

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

we found that transcript abundance of ABI4 ... increased in ABI3::TPS1 tps1/tps1 plantlets compared with wild-type plants

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

in ABI3::TPS1 tps1/tps1 plantlets ... transcript levels of SEX1, which encodes a protein involved in starch mobilisation (Yu et al., 2001), are marginally reduced

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

in ABI3::TPS1 tps1/tps1 plantlets ... no change in those of HXK2 ... Transcript levels

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

Transcript levels of AKIN11, a component of the SnRK1 kinase, are decreased in ABI3::TPS1 tps1/tps1 plantlets

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

in ABI3::TPS1 tps1/tps1 plantlets ... AKIN10 ... similar to the wild type

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

SUCROSE SYNTHASE1 (SUS1) gene At5g20830 ... decreased in ABI3::TPS1 tps1/tps1 compared with wild-type plants of the same age

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

in ABI3::TPS1 tps1/tps1 plantlets ... AKINβ ... similar to the wild type

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

The hexokinase protein plays a very important catalytic and signalling role in carbohydrate metabolism in Arabidopsis (Rolland et al., 2006), but we found only a 22% decrease in HXK1 transcripts in ABI3::TPS1 tps1/tps1 plantlets

Gómez LD, Gilday A, Feil R, Lunn JE, Graham IA - AtTPS1-mediated trehalose 6-phosphate synthesis is essential for embryogenic and vegetative growth and responsiveness to ABA in germinating seeds and stomatal guard cells

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  • Gene expression

STM ... transcripts were analyzed by mRNA in situ hybridization (Figure S2). The expression patterns of these genes did not differ significantly between the transgenic and wild-type plants, in either the CZ, PZ or RM, indicating no significant change in meristem organization ... PSTM:CDKA;1.N146 plants

Gaamouche T, Manes CL, Kwiatkowska D, Berckmans B, Koumproglou R, Maes S, Beeckman T, Vernoux T, Doonan JH, Traas J, Inzé D, De Veylder L - Cyclin-dependent kinase activity maintains the shoot apical meristem cells in an undifferentiated state

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  • Gene expression

WUS ... transcripts were analyzed by mRNA in situ hybridization (Figure S2). The expression patterns of these genes did not differ significantly between the transgenic and wild-type plants, in either the CZ, PZ or RM, indicating no significant change in meristem organization ... PSTM:CDKA;1.N146 plants

Gaamouche T, Manes CL, Kwiatkowska D, Berckmans B, Koumproglou R, Maes S, Beeckman T, Vernoux T, Doonan JH, Traas J, Inzé D, De Veylder L - Cyclin-dependent kinase activity maintains the shoot apical meristem cells in an undifferentiated state

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  • Gene expression

ASYMMETRIC LEAVES 1 (AS1) transcripts were analyzed by mRNA in situ hybridization (Figure S2). The expression patterns of these genes did not differ significantly between the transgenic and wild-type plants, in either the CZ, PZ or RM, indicating no significant change in meristem organization ... PSTM:CDKA;1.N146 plants

Gaamouche T, Manes CL, Kwiatkowska D, Berckmans B, Koumproglou R, Maes S, Beeckman T, Vernoux T, Doonan JH, Traas J, Inzé D, De Veylder L - Cyclin-dependent kinase activity maintains the shoot apical meristem cells in an undifferentiated state

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  • Gene expression

CLV3 ... transcripts were analyzed by mRNA in situ hybridization (Figure S2). The expression patterns of these genes did not differ significantly between the transgenic and wild-type plants, in either the CZ, PZ or RM, indicating no significant change in meristem organization ... PSTM:CDKA;1.N146 plants

Gaamouche T, Manes CL, Kwiatkowska D, Berckmans B, Koumproglou R, Maes S, Beeckman T, Vernoux T, Doonan JH, Traas J, Inzé D, De Veylder L - Cyclin-dependent kinase activity maintains the shoot apical meristem cells in an undifferentiated state

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  • Gene expression

AtTCTPg-GFP plants, harboring the genomic sequence of AtTCTP containing the 5′ and 3′ UTRs, showed a strong GFP fluorescence in tissues undergoing active cell division, although low GFP fluorescence was observed in fully developed organs such as leaves or stems

Brioudes F, Thierry AM, Chambrier P, Mollereau B, Bendahmane M - Translationally controlled tumor protein is a conserved mitotic growth integrator in animals and plants

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  • Gene expression

We did not detect significant differences in the expression levels of the abaxial-promoting ... YAB5 ... in icu6/AXR3 or axr3-3/AXR3 mutant rosettes compared witho wild-type rosettes

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

the expression levels of ... YAB3 ... were slightly decreased in icu6/AXR3

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

SHY2 ... down-regulated in icu6/AXR3

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

SHY2 ... down-regulated in axr1-12/axr1-12

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

the expression levels of ... FILAMENTOUS FLOWER (FIL ... were slightly decreased in icu6/AXR3

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

We did not detect significant differences in the expression levels of the abaxial-promoting KAN1 ... in icu6/AXR3 or axr3-3/AXR3 mutant rosettes compared witho wild-type rosettes

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

transcript levels of ... AS2 remained unchanged in icu6/AXR3 rosettes compared with the wild type in qRT-PCR assays

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

a β-glucuronidase (GUS) reporter driven by a 2.0 kb genomic fragment upstream of AXR3 is expressed in leaf primordia

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

AXR3 ... down-regulated in axr1-12/axr1-12

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

In contrast, the transcript levels of BP ... which are known targets of the AS1–AS2 pathway (Byrne et al. 2000, Byrne et al. 2002), were up-regulated in icu6/AXR3 rosettes

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

We next examined the expression pattern of pAS2::GUS, a reporter construct driven by the AS2 promoter (Iwakawa et al. 2007). As expected if ICU6 and AS2 act independently, similar patterns of GUS activity were detected in the adaxial domain of young cotyledons and leaves of wild-type plants (Fig. 6J, K) and in expanding leaves of icu6/AXR3 plants

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

AXR2 ... down-regulated in icu6/AXR3

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

We did not detect significant differences in the expression levels of ... the adaxial-promoting PHABULOSA ... gene in icu6/AXR3 or axr3-3/AXR3 mutant rosettes compared witho wild-type rosettes

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

IAA2 ... down-regulated in axr1-12/axr1-12

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

transcript levels of AS1 ... remained unchanged in icu6/AXR3 rosettes compared with the wild type in qRT-PCR assays

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

AXR2 ... down-regulated in axr1-12/axr1-12

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

In contrast, the transcript levels of ... KNAT2, which are known targets of the AS1–AS2 pathway (Byrne et al. 2000, Byrne et al. 2002), were up-regulated in icu6/AXR3 rosettes

Pérez-Pérez JM, Candela H, Robles P, López-Torrejón G, del Pozo JC, Micol JL - A role for AUXIN RESISTANT3 in the coordination of leaf growth

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  • Gene expression

Since ICS1 is responsible for pathogen-induced SA biosynthesis, the Atelp2 mutation may suppress the hyperaccumulation of SA in npr1 by inhibiting ICS1 expression. As shown in Figure 3a, Psm ES4326-induced ICS1 expression was significantly reduced in Atelp2 npr1 compared with that in npr1, indicating that AtELP2 is required for hyperaccumulation of ICS1 transcripts in npr1

DeFraia CT, Zhang X, Mou Z - Elongator subunit 2 is an accelerator of immune responses in Arabidopsis thaliana

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  • Gene expression

REV expression was decreased in 35S::Dof5.1ΔAct plants although the levels were different depending on transgenic lines

Kim HS, Kim SJ, Abbasi N, Bressan RA, Yun DJ, Yoo SD, Kwon SY, Choi SB - The DOF transcription factor Dof5.1 influences leaf axial patterning by promoting Revoluta transcription in Arabidopsis

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  • Gene expression

the auxin-responsive genes IAA6 and IAA19 were decreased in Dof5.1-D

Kim HS, Kim SJ, Abbasi N, Bressan RA, Yun DJ, Yoo SD, Kwon SY, Choi SB - The DOF transcription factor Dof5.1 influences leaf axial patterning by promoting Revoluta transcription in Arabidopsis

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  • Gene expression

the auxin-responsive genes IAA6 and IAA19 were decreased in Dof5.1-D

Kim HS, Kim SJ, Abbasi N, Bressan RA, Yun DJ, Yoo SD, Kwon SY, Choi SB - The DOF transcription factor Dof5.1 influences leaf axial patterning by promoting Revoluta transcription in Arabidopsis

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  • Gene expression

REV and ATHB-15 trans-cripts were strongly enhanced in Dof5.1-D (Figure 6a); however, ATHB-15 was not increased in DEX::Dof5.1 plants upon DEX treatment whereas REV transcript was enhanced (Figure 6b). Increased expression of ATHB-15 in Dof5.1-D is probably due to a secondary effect

Kim HS, Kim SJ, Abbasi N, Bressan RA, Yun DJ, Yoo SD, Kwon SY, Choi SB - The DOF transcription factor Dof5.1 influences leaf axial patterning by promoting Revoluta transcription in Arabidopsis

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  • Gene expression

A cross-section of GUS-stained rosette leaves and petioles showed that Dof5.1 was expressed highly in the vascular tissues

Kim HS, Kim SJ, Abbasi N, Bressan RA, Yun DJ, Yoo SD, Kwon SY, Choi SB - The DOF transcription factor Dof5.1 influences leaf axial patterning by promoting Revoluta transcription in Arabidopsis

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  • Gene expression

To determine the subcellular localization of AtCLCc, green fluorescent protein (GFP) was fused to its N-terminus ... Stable transformation of A. thaliana with the same construct confirmed tonoplast localization in stomata

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

ABA treatment led to a significant increase in AtCLCc expression in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Expression of ... AtCLCd ... was almost undetectable, suggesting that mainly AtCLCa and AtCLCc are expressed in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

The expression level of AtCLCc mRNAs was determined in leaves, flowers and pollen from soil-grown plants and germinated seeds and roots from in vitro cultures. Quantitative reverse transcription PCR showed transcript accumulation mainly in aerial organs, with maximal amounts in pollen

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Expression of ... AtCLCe ... was almost undetectable, suggesting that mainly AtCLCa and AtCLCc are expressed in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

A genomic region comprising 1437 bp of the AtCLCc promoter upstream of the start codon was fused in-frame with the uidA reporter gene, and introduced into Arabidopsis wild-type plants. All T3 plants obtained from eight independent AtCLCc::GUS transgenic lines showed a similar qualitative pattern of uidA expression that corresponded to the quantitative reverse transcription PCR data

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

To determine whether AtCLCc is involved in chloride homeostasis under salt stress, we measured the expression of AtCLCc in plants grown in a range of NaCl concentrations. Quantitative reverse transcription PCR experiments were performed on RNA extracted from leaves and roots of wild-type plants (Col-0 and WS) grown for 3 weeks in vitro on half-strength MS only or supplemented with 25 or 50 mm NaCl. AtCLCc expression was significantly increased in the leaves of both wild-type accessions (Figure 5a) in response to 25 and 50 mm NaCl in WS and 50 mm NaCl in Col-0. Induction was also observed in roots in response to 50 mm NaCl in the WS accession only

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Exposure of plants to light for 4 h resulted in dramatically decreased expression of ... AtCLCc in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

To confirm these results, quantitative reverse transcription PCR experiments were performed using RNAs prepared from highly purified guard cells and mesophyll cells from Arabidopsis plants treated or not with 100 μm ABA for 4 h. As shown in Figure 3(a), the expression level of AtCLCc was very high in guard cells compared to mesophyll cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Expression of ... AtCLCg ... was almost undetectable, suggesting that mainly AtCLCa and AtCLCc are expressed in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

In addition, ABA treatment (10 μm ABA sprayed once at the start of the 4 h treatment) slightly increased the expression of AtCLCa

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Studies of AtCLCc promoter activity (Figure 1) and analysis of the guard cell transcriptome (Leonhardt et al., 2004) revealed that AtCLCc is highly expressed in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Expression of ... AtCLCf ... was almost undetectable, suggesting that mainly AtCLCa and AtCLCc are expressed in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Exposure of plants to light for 4 h resulted in dramatically decreased expression of AtCLCa

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

Expression of ... AtCLCb ... was almost undetectable, suggesting that mainly AtCLCa and AtCLCc are expressed in guard cells

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

To determine the subcellular localization of AtCLCc, green fluorescent protein (GFP) was fused to its N-terminus, and the fusion protein was transiently expressed in protoplasts from Arabidopsis cell suspensions under the control of the CaMV 35S promoter. Confocal imaging showed that labelling by the GFP:AtCLCc fusion coincided with the tonoplast

Jossier M, Kroniewicz L, Dalmas F, Le Thiec D, Ephritikhine G, Thomine S, Barbier-Brygoo H, Vavasseur A, Filleur S, Leonhardt N - The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance

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  • Gene expression

To gain an insight into whether the RAV genes are also involved in pathways common to plant defence and senescence, the expression patterns of RAV1, TEM1, and RAV3 were examined in response to the defence-associated phytohormones, ethylene and MJ ... The transcript levels for the three RAV genes also rapidly increased in response to MJ (Fig. 3C). Twenty hours after MJ treatment, RAV1 transcripts remained at higher levels, but the TEM1 and RAV3 transcripts decreased. These results indicate that the RAV genes might play an important role during senescence modulated by ethylene and MJ as well as during age-dependent senescence

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

To gain an insight into whether the RAV genes are also involved in pathways common to plant defence and senescence, the expression patterns of RAV1, TEM1, and RAV3 were examined in response to the defence-associated phytohormones, ethylene and MJ. As shown in Fig. 3, the transcript levels of these three genes were regulated in a similar manner. Two hours after treatment with ACC, the ethylene precursor, the expression of the three RAV genes was strongly triggered but declined again 20 h afterwards

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

To gain an insight into whether the RAV genes are also involved in pathways common to plant defence and senescence, the expression patterns of RAV1, TEM1, and RAV3 were examined in response to the defence-associated phytohormones, ethylene and MJ. As shown in Fig. 3, the transcript levels of these three genes were regulated in a similar manner. Two hours after treatment with ACC, the ethylene precursor, the expression of the three RAV genes was strongly triggered but declined again 20 h afterwards

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

The expression of the ... senescence molecular markers ... SAG12 (Fig. 4E) was investigated further ... However, in RAV1-overexpressing lines ... SAG12 transcripts started to accumulate in leaves at 22 and 16–18 DAE in wild type and overexpressors, respectively

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

To determine the subcellular localization of RAV1, a RAV1-GFP (green fluorescent protein) fusion protein was expressed under the control of the 35S promoter in Arabidopsis protoplasts. Colocalization with a known nuclear protein, RFP-SHY2 (red fluorescent protein-suppressor of HY2), revealed that RAV1-GFP selectively localized to the nucleus (Fig. 2B), further implying that RAV1 functions as a transcriptional regulator

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

To gain an insight into whether the RAV genes are also involved in pathways common to plant defence and senescence, the expression patterns of RAV1, TEM1, and RAV3 were examined in response to the defence-associated phytohormones, ethylene and MJ. As shown in Fig. 3, the transcript levels of these three genes were regulated in a similar manner. Two hours after treatment with ACC, the ethylene precursor, the expression of the three RAV genes was strongly triggered but declined again 20 h afterwards

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

The RAV1 expression pattern during leaf development was first analysed in detail in the third and fourth rosette leaves at different ages by RNA gel blot analysis ... The RAV1 transcript ... began to increase at the late mature green stage, reaching a maximum level at the early senescence stage, but decreasing again when the SEN4 and SAG12 transcript levels markedly increased. The RAV1 expression profile during leaf development indicated that RAV1 might play a role in regulating the onset of leaf senescence

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

The expression of the ... senescence molecular markers ... SEN4 ... was investigated further. In wild-type leaves ... However, in RAV1-overexpressing lines ... The expression of SEN4 was detectable at 22 DAE and 16 DAE in the wild type and overexpressors, respectively

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

The expression of the photosynthesis-related gene CAB2 ... was investigated further. In wild-type leaves, the CAB2 transcript was highly expressed until 20 DAE. However, in RAV1-overexpressing lines, CAB2 expression was greatly reduced at 18 DAE

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

The RAV1 expression pattern during leaf development was first analysed in detail in the third and fourth rosette leaves at different ages by RNA gel blot analysis ... The RAV1 transcript began to increase at the late mature green stage, reaching a maximum level at the early senescence stage

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

To gain an insight into whether the RAV genes are also involved in pathways common to plant defence and senescence, the expression patterns of RAV1, TEM1, and RAV3 were examined in response to the defence-associated phytohormones, ethylene and MJ ... The transcript levels for the three RAV genes also rapidly increased in response to MJ (Fig. 3C). Twenty hours after MJ treatment, RAV1 transcripts remained at higher levels, but the TEM1 and RAV3 transcripts decreased. These results indicate that the RAV genes might play an important role during senescence modulated by ethylene and MJ as well as during age-dependent senescence

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

To gain an insight into whether the RAV genes are also involved in pathways common to plant defence and senescence, the expression patterns of RAV1, TEM1, and RAV3 were examined in response to the defence-associated phytohormones, ethylene and MJ ... The transcript levels for the three RAV genes also rapidly increased in response to MJ (Fig. 3C). Twenty hours after MJ treatment, RAV1 transcripts remained at higher levels, but the TEM1 and RAV3 transcripts decreased. These results indicate that the RAV genes might play an important role during senescence modulated by ethylene and MJ as well as during age-dependent senescence

Woo HR, Kim JH, Kim J, Kim J, Lee U, Song IJ, Kim JH, Lee HY, Nam HG, Lim PO - The RAV1 transcription factor positively regulates leaf senescence in Arabidopsis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1 ... EXO70B1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

EXO70D2 ... GUS expression became detectable when the trichomes started to form, and ... was absent from mature trichomes

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

GUS expression in ... EXO70H4 ... were expressed in developing guard cells but not in mature ones

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1 ... EXO70G1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1 ... EXO70H7

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

xylem-specific expression ... restricted to the stage when banded cell wall thickenings are being formed ... expression specificity of EXO70A1 was confirmed by RNA in situ hybridization

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

GUS expression in ... EXO70A2 ... were expressed in developing guard cells but not in mature ones

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1 ... EXO70B2

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

EXO70D3 ... GUS expression became detectable when the trichomes started to form, and ... was absent from mature trichomes

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

fusion constructs carrying 5′ upstream sequences fused to the coding region of the GUS gene ... EXO70A1 ... we found a xylem-specific expression ... of Arabidopsis ... leaves ... restricted to the stage when banded cell wall thickenings are being formed, whereas no GUS expression was observed before and after this stage

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

GUS expression in ... EXO70C1 ... were expressed in developing guard cells but not in mature ones

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses ... on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1 ... EXO70A1

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

semiquantitative RT-PCR analyses on ... EXO70 genes in Arabidopsis ... RNA samples ... prepared from ... rosette leaves ... genes showed expression in different tissues (Fig. 1 ... EXO70D2

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

xylem-specific expression ... EXO70G2 ... were expressed in developing xylem elements during secondary cell wall thickening ... as revealed by GUS assays

Li S, van Os GM, Ren S, Yu D, Ketelaar T, Emons AM, Liu CM - Expression and functional analyses of EXO70 genes in Arabidopsis implicate their roles in regulating cell type-specific exocytosis

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  • Gene expression

The expression pattern of miR396 was further investigated using an antisense LNA-modified DNA probe, which could detect the mature products of both MIR396a and MIR396b. As shown in Fig. 5E, the LNA signals were detected in the SAM and leaf primordia, and appeared to have a higher level in the distal part of primoridia, but no apparent polar distribution along the adaxial–abaxial axis was observed

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

To analyse the temporal–spatial regulation of cell division by miR396–AtGRF modules, the expression patterns of AtGRF2, AtGRF9, and AtGIF1/AN3 were first examined by in situ hybridization. AtGRF2 and AtGRF9 were expressed in the SAM and young leaf primordium

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996 ... the mRNA levels of cell cycle marker genes were reduced even more (5- to 15-fold change) in 35S:miR396a/as2 plants (Fig. S2D) as compared with those in the as2 mutant (Fig. S2A, D

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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In contrast, FIL was expressed throughout the entire primordium of the needle-like leaves of 35S:miR396a/as2 plants and seemed to accumulate to higher levels in the other leaves (Fig. 3L

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996 ... the mRNA levels of cell cycle marker genes were reduced even more (5- to 15-fold change) in 35S:miR396a/as2 plants (Fig. S2D) as compared with those in the as2 mutant (Fig. S2A, D

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

Compared with the wild type (Fig. 4A), the number of leaf cells expressing histone H4 was dramatically reduced in the 35S:miR396a plants

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

To obtain molecular evidence that miR396-targeted AtGRFs are required for establishment of leaf polarity, the expression pattern of a YABBY family gene, FIL/YAB1, was examined by in situ hybridization. FIL is usually expressed on the leaf abaxial domain of both the wild type (Fig. 3J) and the as2 mutant (Fig. 3K

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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Along the adaxial–abaxial axis, they were expressed uniformly throughout the young leaf primordia, similar to the pattern of AS1 (Fig. 5D), which is believed to be expressed in the whole primordium

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996). The expression of all the tested marker genes was reduced in 35S:miR396a plants with a 2- to 4-fold change

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

To analyse the temporal–spatial regulation of cell division by miR396–AtGRF modules, the expression patterns of AtGRF2, AtGRF9, and AtGIF1/AN3 were first examined by in situ hybridization. AtGRF2 and AtGRF9 were expressed in the SAM and young leaf primordium

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

functional domain of the promoters of MIR396A and MIR396B in the leaves was therefore characterized to better understand the expression pattern of miR396. The ∼3.2 kb 5' upstream regions of MIR396A and MIR396B (counting from the first nucleotide of the mature miR396 sequences) were cloned to represent their respectiveputative promoters. The fragments were fused with the GUS reporter gene to generate the p396a:GUS and p396b:GUS constructs (Fig. 5H), which were then introduced into wild-type plants. By examining the GUS staining signals, it was found that dynamic but similar patterns for both constructs were detected from the cotyledon, shoot apex, and rosette leaves ... In young leaves, the GUS signals were strong in the tip and distal parts, opposite to the expression pattern of CYCB1;1:GUS

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

functional domain of the promoters of MIR396A and MIR396B in the leaves was therefore characterized to better understand the expression pattern of miR396. The ∼3.2 kb 5' upstream regions of MIR396A and MIR396B (counting from the first nucleotide of the mature miR396 sequences) were cloned to represent their respectiveputative promoters. The fragments were fused with the GUS reporter gene to generate the p396a:GUS and p396b:GUS constructs (Fig. 5H), which were then introduced into wild-type plants. By examining the GUS staining signals, it was found that dynamic but similar patterns for both constructs were detected from the cotyledon, shoot apex, and rosette leaves ... In the cotyledon, the GUS signals were very strong (Fig. 5I–J), in contrast to almost no signals of CYCB1;1:GUS

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996 ... the mRNA levels of cell cycle marker genes were reduced even more (5- to 15-fold change) in 35S:miR396a/as2 plants (Fig. S2D) as compared with those in the as2 mutant (Fig. S2A, D

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

functional domain of the promoters of MIR396A and MIR396B in the leaves was therefore characterized to better understand the expression pattern of miR396. The ∼3.2 kb 5' upstream regions of MIR396A and MIR396B (counting from the first nucleotide of the mature miR396 sequences) were cloned to represent their respectiveputative promoters. The fragments were fused with the GUS reporter gene to generate the p396a:GUS and p396b:GUS constructs (Fig. 5H), which were then introduced into wild-type plants. By examining the GUS staining signals, it was found that dynamic but similar patterns for both constructs were detected from the cotyledon, shoot apex, and rosette leaves ... In young leaves, the GUS signals were strong in the tip and distal parts, opposite to the expression pattern of CYCB1;1:GUS

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The expression pattern of miR396 was further investigated using an antisense LNA-modified DNA probe, which could detect the mature products of both MIR396a and MIR396b. As shown in Fig. 5E, the LNA signals were detected in the SAM and leaf primordia, and appeared to have a higher level in the distal part of primoridia, but no apparent polar distribution along the adaxial–abaxial axis was observed

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

functional domain of the promoters of MIR396A and MIR396B in the leaves was therefore characterized to better understand the expression pattern of miR396. The ∼3.2 kb 5' upstream regions of MIR396A and MIR396B (counting from the first nucleotide of the mature miR396 sequences) were cloned to represent their respectiveputative promoters. The fragments were fused with the GUS reporter gene to generate the p396a:GUS and p396b:GUS constructs (Fig. 5H), which were then introduced into wild-type plants. By examining the GUS staining signals, it was found that dynamic but similar patterns for both constructs were detected from the cotyledon, shoot apex, and rosette leaves ... ( ... In young leaves, the GUS signals were strong in the tip and distal parts, opposite to the expression pattern of CYCB1;1:GUS

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

functional domain of the promoters of MIR396A and MIR396B in the leaves was therefore characterized to better understand the expression pattern of miR396. The ∼3.2 kb 5' upstream regions of MIR396A and MIR396B (counting from the first nucleotide of the mature miR396 sequences) were cloned to represent their respectiveputative promoters. The fragments were fused with the GUS reporter gene to generate the p396a:GUS and p396b:GUS constructs (Fig. 5H), which were then introduced into wild-type plants. By examining the GUS staining signals, it was found that dynamic but similar patterns for both constructs were detected from the cotyledon, shoot apex, and rosette leaves ... In the cotyledon, the GUS signals were very strong (Fig. 5I–J), in contrast to almost no signals of CYCB1;1:GUS

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

To analyse the temporal–spatial regulation of cell division by miR396–AtGRF modules, the expression patterns of AtGRF2, AtGRF9, and AtGIF1/AN3 were first examined by in situ hybridization. AtGRF2 and AtGRF9 were expressed in the SAM and young leaf primordium

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

functional domain of the promoters of MIR396A and MIR396B in the leaves was therefore characterized to better understand the expression pattern of miR396. The ∼3.2 kb 5' upstream regions of MIR396A and MIR396B (counting from the first nucleotide of the mature miR396 sequences) were cloned to represent their respectiveputative promoters. The fragments were fused with the GUS reporter gene to generate the p396a:GUS and p396b:GUS constructs (Fig. 5H), which were then introduced into wild-type plants. By examining the GUS staining signals, it was found that dynamic but similar patterns for both constructs were detected from the cotyledon, shoot apex, and rosette leaves ... However, when the leaves gradually become mature, the GUS signals progressively accumulate from the distal to the proximal part of developing leaves, with strong activity in the whole mature leaves

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

To confirm this further, the construct 35S:rAtGRF9, which carries the miR396-resistant version of AtGRF9 (rAtGRF9), was made and introduced into 35S:miR396a/as2 plants ... Disruption of the miR396-binding sites in AtGRF9 could result in the accumulation of their stabilized transcripts in transgenic plants. By qRT-PCR, it was found that the AtGRF9 mRNA in the double transgenic plants was increased to levels higher than in the wild type, in contrast to the much lower accumulation in 35S:miR396a/as2 plants

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The expression pattern of miR396 was further investigated using an antisense LNA-modified DNA probe, which could detect the mature products of both MIR396a and MIR396b. As shown in Fig. 5E, the LNA signals were detected in the SAM and leaf primordia, and appeared to have a higher level in the distal part of primoridia, but no apparent polar distribution along the adaxial–abaxial axis was observed

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996 ... the mRNA levels of cell cycle marker genes were reduced even more (5- to 15-fold change) in 35S:miR396a/as2 plants (Fig. S2D) as compared with those in the as2 mutant (Fig. S2A, D

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

functional domain of the promoters of MIR396A and MIR396B in the leaves was therefore characterized to better understand the expression pattern of miR396. The ∼3.2 kb 5' upstream regions of MIR396A and MIR396B (counting from the first nucleotide of the mature miR396 sequences) were cloned to represent their respectiveputative promoters. The fragments were fused with the GUS reporter gene to generate the p396a:GUS and p396b:GUS constructs (Fig. 5H), which were then introduced into wild-type plants. By examining the GUS staining signals, it was found that dynamic but similar patterns for both constructs were detected from the cotyledon, shoot apex, and rosette leaves ... In the cotyledon, the GUS signals were very strong (Fig. 5I–J), in contrast to almost no signals of CYCB1;1:GUS

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

To obtain molecular evidence that miR396-targeted AtGRFs are required for establishment of leaf polarity, the expression pattern of a YABBY family gene, FIL/YAB1, was examined by in situ hybridization. FIL is usually expressed on the leaf abaxial domain of both the wild type (Fig. 3J) and the as2 mutant (Fig. 3K

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996). The expression of all the tested marker genes was reduced in 35S:miR396a plants with a 2- to 4-fold change

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The expression of cell cycle-related genes was also examined in as2 and 35S:miR396a/as2 plants. Similarly, the number of cells expressing histone H4 was reduced (Supplementary Fig. S2B, C at JXB online), and the mRNA levels of cell cycle marker genes were reduced even more (5- to 15-fold change) in 35S:miR396a/as2 plants (Fig. S2D) as compared with those in the as2 mutant (Fig. S2A, D

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

Interestingly, the transcripts of AtGIF1/AN3 appeared to be highly accumulated in the proximal part of leaf primordia (Fig. 5C), in which cells are rapidly proliferating, consistent with the previous results obtained by promoter–GUS assay

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a ... as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

qRT-PCR analysis revealed that the transcription levels of the nine AtGRF genes including seven predicated AtGRF gene targets in 35S:miR396a and 35S:miR396b plants were all decreased

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996). The expression of all the tested marker genes was reduced in 35S:miR396a plants with a 2- to 4-fold change

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

In addition to histone H4, the expression of several other cell cycle-related marker genes was also analysed by qRT-PCR. Cyclin D3;1 (CycD3;1) is mainly expressed at proliferating cells in the G1 phase and drives the G1/S transition together with cyclin-dependent kinase A (CDKA) (Dewitte et al., 2003; Menges et al., 2006). CYCA2;1 is involved in S/G2 transition, and CYCB1;1 in G2/M transition (Doerner et al., 1996; Shaul et al., 1996). The expression of all the tested marker genes was reduced in 35S:miR396a plants with a 2- to 4-fold change

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The transcription levels of AtGRF genes were analysed in 35S:miR396a/as2 transgenic plants by qRT-PCR. Similar to 35S:miR396/Col transgenic plants, the expression levels of AtGRF genes were decreased in 35S:miR396a/as2 (Fig. 1J), suggesting that the leaf polarity defects in 35S:miR396a/as2 plants were due to the decreased expression of AtGRF genes

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

The expression pattern of miR396 was further investigated using an antisense LNA-modified DNA probe, which could detect the mature products of both MIR396a and MIR396b. As shown in Fig. 5E, the LNA signals were detected in the SAM and leaf primordia, and appeared to have a higher level in the distal part of primoridia, but no apparent polar distribution along the adaxial–abaxial axis was observed

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

To analyse the temporal–spatial regulation of cell division by miR396–AtGRF modules, the expression patterns of AtGRF2, AtGRF9, and AtGIF1/AN3 were first examined by in situ hybridization. AtGRF2 and AtGRF9 were expressed in the SAM and young leaf primordium

Wang L, Gu X, Xu D, Wang W, Wang H, Zeng M, Chang Z, Huang H, Cui X - miR396-targeted AtGRF transcription factors are required for coordination of cell division and differentiation during leaf development in Arabidopsis

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC4p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... For LAC8p::GUS very faint staining was detected only in leaf primordia

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... expression of LAC8p::GUS was very faint, mostly being restricted to tertiary veins

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... staining was observed in mesophyll tissue and supporting trichome epidermal cells ... in the latter cell types, expression of LAC2p::GUS was also noted

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... For ... LAC3p::GUS, diffuse staining was observed in mesophyll tissue

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC9p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... No expression of ... LAC16p::GUS was observed in aerial organs

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC9p::GUS–LAC11p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of LAC2p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... faint expression levels in leaf vasculature were observed for ... LAC12p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC15p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC15p::GUS and

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Expression for LAC6p::GUS ... was, however, not evident in rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... No expression of ... LAC13p::GUS ... was observed in aerial organs

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC11p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC17p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC15p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... For LAC1p::GUS ... diffuse staining was observed in mesophyll tissue

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC9p::GUS–LAC12p

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Expression for ... LAC16p::GUS was, however, not evident in rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... faint expression levels in leaf vasculature were observed for LAC5p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... Expression patterns of ... LAC3p::GUS ... were ... mainly noted in leaf trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Expression for ... LAC13p::GUS ... was, however, not evident in rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

Based on RT-PCR analysis, 15 laccases displayed some level of expression in most tissues ... Fig. 5

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC12p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... For LAC7p::GUS, expression was mainly restricted to hydathodes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC4p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC4p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... LAC3p::GUS ... staining was observed in ... supporting trichome epidermal cells

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... Expression patterns of ... LAC7p::GUS ... were ... mainly noted in leaf trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC9p::GUS–LAC11p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC14p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC9p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for LAC2p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... For LAC1p::GUS ... staining was observed in ... supporting trichome epidermal cells

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC11p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for LAC2p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC17p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC9p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC9p::GUS–LAC12p

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC14p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC14p::GUS ... were ... staining ... in trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... No expression of LAC6p::GUS ... was observed in aerial organs

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... the first set of true leaves ... expression patterns for ... LAC17p::GUS ... were ... staining in the vasculature of ... rosette leaves

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

At about 14 days post-germination ... Expression patterns of LAC1p::GUS ... were ... mainly noted in leaf trichomes

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

GUS-staining in mature leaves ... Rosette leaf expression was prominent in vasculature of ... LAC5p::GUS

Turlapati PV, Kim KW, Davin LB, Lewis NG - The laccase multigene family in Arabidopsis thaliana: towards addressing the mystery of their gene function(s)

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  • Gene expression

SIM was the most highly expressed cell cycle related gene in gl3-sst nok

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

Although ROP2 was expressed at similar levels in mature wild-type (583 ± 121) and gl3-sst trichomes, RIC4, a target of ROP2, was only detected in gl3-sst

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

GL1 expression was 3.4-fold higher (P < 0.05) in gl3-sst trichomes. This finding was important because previous analyses showed that GL1 expression is highest in early stage trichomes (Larkin et al., 1993). Compared with gl3-sst sim trichomes, GL1 expression in gl3-sst was 7.8-fold lower (Marks et al., 2009)

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

An intriguing difference between gl3-sst and gl3-sst nok trichomes is that ROP2 was expressed five-fold higher in gl3-sst ... Although ROP2 was expressed at similar levels in mature wild-type (583 ± 121) and gl3-sst trichomes

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

ROP11 ... was expressed three-fold higher in gl3-sst nok (2755 ± 463) than in gl3-sst (824 ± 218

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

A previous study indicated that TRY expression was reduced or absent in gl3-sst trichomes (Esch et al., 2004). In this study, the comparison between gl3-sst and wild-type showed that TRY expression was reduced by a factor of 2.52 (P < 0.05

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

There were some significant differences in the gl3-sst sim and gl3-sst nok profiles concerning the expression of genes involved in the cell cycle. For example, CDKB2s 1 and 2, which promote cell division, were more highly expressed in gl3-sst sim [(295 ± 128 and 322 ± 147 versus 108 ± 27 and not detected

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

There were some significant differences in the gl3-sst sim and gl3-sst nok profiles concerning the expression of genes involved in the cell cycle. For example, CDKB2s 1 and 2, which promote cell division, were more highly expressed in gl3-sst sim [(295 ± 128 and 322 ± 147 versus 108 ± 27 and not detected

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

The transcriptome of gl3-sst nok ... MYB30 and associated lipid metabolism related genes also were highly expressed

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

GL1 expression was higher in ... gl3-sst nok ... than in gl3-sst trichomes

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

the comparison between gl3-sst and wild-type showed that ... CPC which functions redundantly with TRY, was expressed 6.64-fold lower

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

RNA was extracted from trichomes isolated from three biological replicates of gl3-sst plants. The RNA was used to generate probes for hybridization to the Affymetrix ATH1 GeneChip® as previously described [(Marks et al., 2008, 2009); see Table S1 for the normalized means and standard deviation for all genes declared detected (i.e. Affymetrix MAS5 P < 0.04) with all values normalized to 1000 per Chip]. The replicates were grown under different conditions and the samples were processed at two locations ... To identify predominant cellular activities in gl3-sst trichomes, a Gene Set Enrichment Analysis (GSEA) was performed on highly expressed genes using GeneTrail (http://genetrail.bioinf.uni-sb.de/index.php). The complete output of the analysis of 3245 genes is shown in Table S2. The largest enriched set of genes (427 of 3245) contained those involved in stress responses (GO:0006950) and 35 of these genes were found among the 100 most highly expressed. One of the more prevalent subsets of stress genes corresponded to those involved in dealing with osmotic stress (149; GO:0006970). Other sets of more highly expressed genes were involved in translation (229; GO:0006412), cell walls (195; GO:0005618), vacuoles (262; GO:0005773), plasma membrane (719; GO:0005886), and oxidative phosphorylation (32; GO:0006119

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

The transcriptome of gl3-sst nok resembled that of gl3-sst sim (gl3-sst sim data available from ArrayExpress and Marks et al., 2009). In both, the genes encoding proteins involved in translation or ribosome structure were the most highly expressed (represented by approximately 50% of the 150 most highly expressed genes in both datasets

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

A search was conducted to identify transcription factors more highly expressed in gl3-sst trichomes than in wild-type mature trichomes. This search led to the detailed analysis of AT3G01140 (MYB106), which was expressed six-fold higher

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

There were some significant differences in the gl3-sst sim and gl3-sst nok profiles concerning the expression of genes involved in the cell cycle ... CDC6 expression, which is required for the initiation of DNA replication and endoreduplication, was expressed at a higher level in gl3-sst nok trichomes

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

There were some significant differences in the gl3-sst sim and gl3-sst nok profiles concerning the expression of genes involved in the cell cycle ... CDKA;1, which is required for both endoreduplication and cell division, was expressed at higher levels in gl3-sst nok

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

To identify other differences between gl3-sst and wild-type, several types of analyses were performed. First, genes declared detected in gl3-sst trichomes but not in wild-type trichomes were identified. For those genes detected in both sets, the ratios between the expression values were determined and subjected to a t-test (see Table S3 online for complete results). A list containing genes only detected in gl3-sst (and not in wild-type trichomes) along with those expressed at least 2.5-fold higher in gl3-sst than wild-type was used in an overrepresentation analysis (ORA) using GeneTool. It was found that genes involved in lipid metabolic processes (GO:0006629) were specifically enriched in gl3-sst (P-value (fdr) < 8.56 × 10−6) (Table S4). These genes included those involved in fatty acid and wax biosynthesis. Genes involved in trichome differentiation (GO:0010026) also were over represented [P-value (fdr) < 0.011

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

An interesting contrast and potentially inconsistent finding was the elevated expression in gl3-sst nok (1584 ± 358) versus gl3-sst sim (206 ± 62) of LOG7, which encodes cytokinin riboside 5′-monophosphate phosphoribohydrolase that promotes cell division

Gilding EK, Marks MD - Analysis of purified glabra3-shapeshifter trichomes reveals a role for NOECK in regulating early trichome morphogenic events

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  • Gene expression

KNAT2 ... transcript levels were ... elevated in ae7 ... mutant leaves

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

RAD51 ... was analyzed by RT-PCR and found to be upregulated in ae7

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

we analyzed expression levels of several cell-cycle marker genes by qRT-PCR ... in the ae7 mutant ... CYCD3;1 ... unaltered

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

we analyzed expression levels of several cell-cycle marker genes by qRT-PCR. The transcript levels of ... in the ae7 mutant ... H4 ... unaltered

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

we analyzed expression levels of several cell-cycle marker genes by qRT-PCR. The transcript levels of the G2/Mphase- specific genes, CYCB1;1 ... were increased in the ae7 mutant

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

KNAT2 ... transcript levels were ... elevated in ... ae7 as2-101 double mutant leaves

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

We also analyzed H4 hybridization signals in the ae7 mutant, but no significant changes in the H4 pattern were observed between wild-type Ler and ae7

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

we examined expression of BP, one of the class I KNOX genes in leaves by introducing a pBP:GUS fusion into the ae7 mutant. In wild- type leaves, the GUS reporter gene is usually repressed (Figure 2k), whereas in the ae7 mutant leaves, GUS signals were indeed ectopically distributed in the leaf vasculature and sinuses of serrations

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

In seedlings, AE7 signals accumulated throughout the early-stage leaf primordia (Figure 5e) with a spotted pattern

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

Longitudinal sections showed that in addition to the leaf primordia, AE7 signals accumulated in the SAM

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

BP ... transcript levels were ... elevated in ... ae7 as2-101 double mutant leaves

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

At1g68310 ... RT-PCR analyses indicated that this gene was expressed in all plant tissues examined, including the root, stem, rosette leaf, cauline leaf, inflorescence and silique

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

KNAT6 ... transcript levels were ... elevated in ae7 ... mutant leaves

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

we analyzed expression levels of several cell-cycle marker genes by qRT-PCR. The transcript levels of ... in the ae7 mutant ... CYCA2;1 ... unaltered

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

In situ hybridization, using a gene-specific sequence as a probe, showed that AE7 was expressed throughout the globular-stage (Figure 5a), heart-stage (Figure 5b) and torpedo- stage (Figure 5c) embryos

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

In the late-stage leaf primordia, both AE7 and H4 signals were detected, except in the central part of the abaxial domain, where the midvein cells were enlarging

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

At the bent-cotyledon stage, the AE7 signal became weaker

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

WEE1 ... was analyzed by RT-PCR and found to be upregulated in ae7

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

KNAT6 ... transcript levels were ... elevated in ... ae7 as2-101 double mutant leaves

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

we analyzed expression levels of several cell-cycle marker genes by qRT-PCR. The transcript levels of ... CDKB1;1 ... were increased in the ae7 mutant

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

BP ... transcript levels were ... elevated in ae7 ... mutant leaves

Yuan Z, Luo D, Li G, Yao X, Wang H, Zeng M, Huang H, Cui X - Characterization of the AE7 gene in Arabidopsis suggests that normal cell proliferation is essential for leaf polarity establishment

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  • Gene expression

Using an ATML1 probe as a marker for L1 identity (Lu et al., 1996), we found that, as in the wild-type, only the outermost cell layer of lom1 lom2 lom3 mutants had L1 identity

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

Hybridization of consecutive lom1 lom2 lom3 shoot tip sections alternatively with WUS (Figure 5c) and CLV3 (Figure 5d) probes revealed that the CLV3 expression domain completely encompassed the WUS mRNA domain and exceeded it in all directions. These findings demonstrate that the relative positions of WUS- and CLV3-expressing cell groups within lom1 lom2 lom3 SAMs were altered, suggesting disruption of their functional interplay

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

LOM2 ... transcripts accumulated in the SAM

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

Athb23 encodes a homeodomain-leucine zipper (HD-ZIP) protein that is specifically expressed in the rib zone (Figure 5g) and the adaxial domain of leaf primordia (Kim et al., 2007). Examination of ATHB23:GUS expression in lom1 lom2 mutants revealed GUS expression in the small cells between the WUS expression domain and the large cells of the rib zone (Figure 5h). This finding indicates that these cells acquire rib zone identity. However, unlike in the wild-type, they do not differentiate

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

LOM3 mRNA was detected only in the boundary region between leaf primordia and the vegetative shoot apical meristem

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

In wild-type apices, CLV3 transcripts accumulate in a triangular cell group localized above the WUS expression domain at the distal tip of the SAM (Figure 5b). In the lom triple mutant, this expression pattern was expanded to include the amplified tunica cell layers, but excluded the outermost cell layers of the SAM (Figure 5d). A basipetal shift in the CLV3 expression pattern was observed in the youngest shoot apices analyzed at 21 DAG (Figure S7j–l). Hybridization of consecutive lom1 lom2 lom3 shoot tip sections alternatively with WUS (Figure 5c) and CLV3 (Figure 5d) probes revealed that the CLV3 expression domain completely encompassed the WUS mRNA domain and exceeded it in all directions. These findings demonstrate that the relative positions of WUS- and CLV3-expressing cell groups within lom1 lom2 lom3 SAMs were altered, suggesting disruption of their functional interplay

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

LOM1 transcripts were detected in the vascular strands of young leaf primordia

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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LOM2 ... transcripts were detected in the vascular strands of young leaf primordia

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

To determine whether cessation of leaf formation is correlated with an alteration in the pattern of cell divisions in the SAM, we monitored accumulation of S phase-associated histone H4 mRNA in shoot apices. As the wild-type, lom triple mutants showed a higher density of histone H4-expressing cells in the peripheral zone than in the central zone of the meristem ... reflecting the increase in cell divisions in the peripheral zone that is required for the formation of leaf primordia

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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the expression domain of the LAS gene, which spanned only the five or six top-most cell layers in wild-type shoot apices (Figure 4c), extended to at least nine or 10 cell layers in lom1 lom2 mutants

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

LOM2 transcripts were found to accumulate in a pattern very similar to that of LOM1; however, the signals obtained with LOM2 probes were consistently weaker than those obtained with LOM1 probes

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

In lom triple mutants, STM transcripts were initially detected in a pattern similar to that of wild-type plants (Figure 4e). With the increase in meristem width, the STM expression domain expanded laterally from approximately 100 μm at 28 DAG to approximately 150 μm at 49 DAG (Figure S7). STM mRNA was also detected in the additional cell layers that developed in lom1 lom2 lom3 shoot apices. This indicated that, even several weeks after cessation of leaf primordium formation, most cells in the lom1 lom2 lom3 shoot meristem had not lost their meristematic identity. However, from 42 DAG onwards, STM mRNA accumulation was strongly reduced in the topmost extra cell layers of the meristem

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

LOM1 transcripts accumulated in the SAM from the L2 layer downwards to the rib meristem ... with higher levels in the peripheral zone than in the central zone of the meristem

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

We used ANT transcript accumulation as a marker (Elliott et al., 1996; Long and Barton, 2000) to assess whether leaf founder cells are established at the flanks of lom1 lom2 lom3 meristems (Figure 4k,l). In the wild-type, ANT mRNA was detected in discrete cell groups of the peripheral zone, the incipient leaf primordia and the vascular strands of developing leaf primordia (Figure 4k). The expression in leaf primordia was not altered in lom triple mutants. However, ANT expression in the meristem expanded into an inverted cup-shaped domain comprising the central zone and the peripheral zone of the SAM and extending towards the rib zone (Figure 4l). This pattern of ANT transcript accumulation indicated over-accumulation of leaf founder cells that do not participate in the formation of leaf primordia

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

Transverse sections revealed more precisely that LOM1 mRNA accumulates in and around the vascular elements along the boundary between the adaxial and the abaxial side of leaf primordia

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

WUS expression in shoot apices of lom triple mutants was monitored at 21, 28, 35, 42 and 49 DAG under short photoperiods (Figure S7e–i). WUS mRNA accumulated in the center of the SAM (Figures 5c and S7e–i) in the triple mutant. However, in comparison to the pattern of expression of WUS mRNA in the wild-type (Figure 5a), the expression domain was often enlarged and had an irregular shape, starting at 21 DAG. The number of cell layers separating the WUS expression domain from the L1 layer increased from six layers at 21 DAG to 12 layers at 49 DAG. In the wild-type, the WUS expression domain is positioned just above the large vacuolated cells of the rib zone (Figure 5a). However, in the lom1 lom2 and lom triple mutants, several layers of small cytoplasmic cells separated the cluster of WUS-expressing cells from the rib zone

Schulze S, Schäfer BN, Parizotto EA, Voinnet O, Theres K - LOST MERISTEMS genes regulate cell differentiation of central zone descendants in Arabidopsis shoot meristems

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  • Gene expression

The steady-state levels of LHCII proteins were examined by immunoblot analyses performed with antibodies raised against ... minor monomeric CP26 protein ... in gdc1-3 ... CP26 accumulated at the same level between the mutant and the wild type

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

In the gdc1-3 mutant, the D1 ... core subunits of PSII accumulated to low levels

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

In the gdc1-3 mutant ... the PsaA subunit of PSI ... accumulated to similar levels as the wild type

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

AT1G50900 expression was examined in the allelic mutant plants using reverse transcription (RT)-PCR and real-time RT-PCR analysis with gene-specific primers. Gene expression levels in ... gdc1-2 ... were ... 3.58% of the wild type

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

GDC1 expression was not detected in gdc1-3

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

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Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

GDC1 expression patterns in Arabidopsis were also investigated using a GUS reporter gene fused to its promoter ... In 15-d-old seedlings, GUS activity was detected in the basal rosette leaves

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

In the gdc1-3 mutant ... the cytochrome f subunit of cytochrome b6f ... accumulated to similar levels as the wild type

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

The steady-state levels of LHCII proteins were examined by immunoblot analyses performed with antibodies raised against specific subunits ... The results showed that Lhcb1 levels were substantially reduced ... in gdc1-3

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

AT1G50900 expression was examined in the allelic mutant plants using reverse transcription (RT)-PCR and real-time RT-PCR analysis with gene-specific primers. Gene expression levels in gdc1-1 ... were 5.07% ... of the wild type

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

In the gdc1-3 mutant ... D2 core subunits of PSII accumulated to low levels

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

GDC1 was highly expressed in ... seedlings

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

TargetP program analysis showed that GDC1 is a chloroplast-targeted protein (http://www.cbs.dtu.dk/services/TargetP/; Emanuelsson et al., 2000). The subcellular localization of the protein was confirmed by fusing the full-length coding sequence of GDC1 with the GFP gene and introduced into wild-type plants under the control of the cauliflower mosaic virus 35S promoter. Stable transgenic plants were obtained, and GFP fluorescence of transgenic plants was observed with confocal laser microscopy. GFP fluorescence was colocalized with chlorophyll autofluorescence. This confirmed that GDC1 is a chloroplast-localized protein

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

The steady-state levels of LHCII proteins were examined by immunoblot analyses performed with antibodies raised against specific subunits ... Lhcb2 was slightly reduced in gdc1-3

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

The steady-state levels of LHCII proteins were examined by immunoblot analyses performed with antibodies raised against specific subunits of LHCIIb ... in gdc1-3. Lhcb3 ... accumulated at the same level between the mutant and the wild type

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

In the gdc1-3 mutant ... the β-subunit of ATP synthase accumulated to similar levels as the wild type

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

GDC1 was highly expressed in leaves

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

The effects of grana deficiency on protein complexes embedded in thylakoid membranes were examined. The chlorophyll-protein complexes were solubilized from thylakoid membranes using dodecyl-β-D-maltopyranoside and separated by blue native (BN)-PAGE (Schägger et al., 1994). After the first-dimensional separation in the presence of Coomassie Brilliant Blue G-250, the major bands representing PSII supercomplexes, monomeric PSI and dimeric PSII, monomeric PSII, dimeric cytochrome b6f, trimeric LHCII, and monomeric LHCII were resolved in the wild type (Fig. 4A). Most of the bands were also detected in the gdc1-3 mutant. However, the trimeric LHCII was negligible, and band I of the wild type disappeared in the gdc1-3 mutant

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

In addition, we examined the effect of light on GDC1 expression (Fig. 7H). Real-time RT-PCR analysis was carried out using total RNA isolated from leaves harvested at 0, 1, 3, 6, 12, or 24 h after the transfer of 7-d-old dark-grown wild-type plants to light conditions. GDC1 was weakly expressed in the dark (0 h), but after transfer of etiolated plants to light conditions, GDC1 mRNA accumulated in a time-dependent manner

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

To further determine the localization of GDC1 within the chloroplast, we investigated the GDC1-GFP fusion protein in 35S::GDC1-GFP transgenic plants with GFP antibody. A positive signal was detected in the total proteins and thylakoid membrane proteins from 35S::GDC1-GFP transgenic plants

Cui YL, Jia QS, Yin QQ, Lin GN, Kong MM, Yang ZN - The GDC1 gene encodes a novel ankyrin domain-containing protein that is essential for grana formation in Arabidopsis

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  • Gene expression

eIF6 ... detected in the cytoplasm

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

RACK1 ... detected in the ... nucleus

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

Using quantitative RT-PCR, we conducted a detailed analysis of the expression of RACK1 gene family members in response to ABA treatment. The level of transcripts for all three RACK1 genes was down-regulated as early as 1 h after ABA treatment and remained suppressed thereafter

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

RACK1 ... detected in the cytoplasm

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

eIF6 ... detected in the ... nucleus

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

RACK1 ... detected in the ... nucleus

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

To gain further insights into the biochemical/molecular function of RACK1 in Arabidopsis, we performed global coexpression data analysis (PRIME; http://prime.psc.riken.jp/) to identify genes that are coexpressed with all three RACK1 genes. Surprisingly, we found that more than 80% (128 out of 154) of the genes that are coexpressed with RACK1 encode ribosomal proteins (Supplemental Fig. S3; Supplemental Table S3), implying a potential relationship between RACK1 function and the ribosome complex

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

eIF6 ... detected in the ... nucleus

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

RACK1 ... detected in the cytoplasm

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

Using quantitative RT-PCR, we conducted a detailed analysis of the expression of RACK1 gene family members in response to ABA treatment. The level of transcripts for all three RACK1 genes was down-regulated as early as 1 h after ABA treatment and remained suppressed thereafter

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

The expression of the eIF6B gene was too low to be detected in seedlings used for quantitative RT-PCR

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

To gain further insights into the biochemical/molecular function of RACK1 in Arabidopsis, we performed global coexpression data analysis (PRIME; http://prime.psc.riken.jp/) to identify genes that are coexpressed with all three RACK1 genes. Surprisingly, we found that more than 80% (128 out of 154) of the genes that are coexpressed with RACK1 encode ribosomal proteins (Supplemental Fig. S3; Supplemental Table S3), implying a potential relationship between RACK1 function and the ribosome complex

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

eIF6 ... detected in the cytoplasm

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

RACK1 ... detected in the cytoplasm

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

eIF6B is only expressed in flower buds

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

We then extended our analysis to examine the possible regulation of eIF6 expression by ABA. We found that a reduction of eIF6A expression could be detected as early as 15 min after ABA treatment, and expression of eIF6A continued to decline for up to 6 h

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

RACK1 ... detected in the ... nucleus

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

To gain further insights into the biochemical/molecular function of RACK1 in Arabidopsis, we performed global coexpression data analysis (PRIME; http://prime.psc.riken.jp/) to identify genes that are coexpressed with all three RACK1 genes. Surprisingly, we found that more than 80% (128 out of 154) of the genes that are coexpressed with RACK1 encode ribosomal proteins (Supplemental Fig. S3; Supplemental Table S3), implying a potential relationship between RACK1 function and the ribosome complex

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

Using quantitative RT-PCR, we conducted a detailed analysis of the expression of RACK1 gene family members in response to ABA treatment. The level of transcripts for all three RACK1 genes was down-regulated as early as 1 h after ABA treatment and remained suppressed thereafter

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

Reverse transcription (RT)-PCR analysis revealed that the expression of eIF6A is ubiquitous across various tissues and organs in Arabidopsis

Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li JF, Weston DJ, Ellis BE, Chen JG - Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid

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  • Gene expression

in the RNase E mutants ... ycf4 ... a massive overaccumulation of unprocessed polycistronic precursor transcripts occurred

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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in the RNase E mutants ... petA ... a massive overaccumulation of unprocessed polycistronic precursor transcripts occurred

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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in the rne/rne mutants ... clpP ... even showed a stronger accumulation of the mature RNA than in the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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We used this method to identify plastid genes, whose expression is most severely affected at the level of protein synthesis in the RNase E mutants (Figures 4 and S1b). Interestingly, when polysomal RNAs from wild-type plants and mutant plants were comparatively analyzed, a single gene was found to show drastically reduced association with ribosomes, namely rpl22. Significantly, rpl22 was much more strongly affected in the translatomics analysis than in the transcriptomics analysis (Figure 4a,b), tentatively suggesting that most of the unprocessed precursor transcripts accumulating in the mutant (Figure 5) are not translatable. Next, we analyzed the distribution of rpl22 transcripts across fractionated polysome gradients (Figure 6a). These experiments confirmed poor translation of the heterogeneous population of rpl22-containing transcripts present in the homozygous RNase E mutant

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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This was also apparent for psbB, a PSII gene, which is also part of a large polycistronic transcription unit (Westhoff and Herrmann, 1988). Accumulation of the mature psbB message was strongly reduced in the rne/rne mutants, while the unprocessed precursor transcript accumulated to higher levels than in the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

Assays with different tissues confirmed the northern blot and GUS expression data (Figure 1e) and, in addition, revealed that expression of the Rne gene is ... suppressed by sucrose in the growth medium

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

Two independently generated RNAi lines that both show a reduction of RPL24 expression levels to between 15 and 20% of wild-type levels were analyzed ... Processing of polycistronic transcripts was not defective, and ... the mature petA mRNA accumulated to similar levels to those in the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

Assays with different tissues confirmed the northern blot and GUS expression data (Figure 1e) and, in addition, revealed that expression of the Rne gene is strongly elevated in the dark

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

homozygous RNase E knockout plants showed a moderate reduction in their content of small subunits of the chloroplast ribosome (determined as the ratio 18S rRNA:16S rRNA), but a more pronounced reduction in the large subunit of the chloroplast ribosome (determined as the ratio 18S rRNA:23S rRNA and the ratio 16S rRNA:23S rRNA; Figure 6b). The data revealed that the homozygous mutants had fewer than 50% of the chloroplast large ribosomal subunits compared with the wild type (yellow bars in Figure 6b), whereas the heterozygous mutant was not significantly different from the wild type. These findings support the assumption that defective rpl22 processing causes plastid ribosome deficiency in homozygous RNase E knockout plants

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

To confirm the exclusive localization in chloroplasts and exclude dual targeting to chloroplasts and mitochondria, we translationally fused the sequence encoding the N-terminal 82 amino acids of RNase E to the gene for the green fluorescence protein (GFP) and introduced this construct into the nuclear genome of Arabidopsis by Agrobacterium tumefaciens-mediated transformation. Analysis of the subcellular localization of GFP fluorescence in cells of the generated stable transgenic plants suggests that the Arabidopsis RNase E is targeted exclusively to chloroplasts

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the rne/rne mutants ... rpl23 ... while showing a strong overaccumulation of precursors, did not display a reduction in the mature mRNA species

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

Mature rbcL ... mRNAs accumulated to very similar levels in the wild type, heterozygous RNase E mutants and homozygous RNase E mutants ... suggesting that RNase E does not contribute significantly to controlling the mRNA levels of these genes, at least not under photoautotrophic growth conditions in soil

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

When the levels of polyadenylated transcripts of rbcL ... were determined by quantitative (q)RT-PCR (see Experimental Procedures), they were found to be generally very low (Cp values of ... 29 cycles for rbcL ... This is consistent with previous data and the notion that polyadenylated mRNAs represent short-lived degradation intermediates (Kudla et al., 1996; Lisitsky et al., 1996). No significant differences were observed between the RNase E mutant and the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

putative RNase E gene ... The GUS staining of transgenic plants revealed strong expression in green (chloroplast-containing) tissues, including cotyledons, true leaves and sepals with expression in mature (fully expanded) leaves being much stronger than expression in young developing leaves (Figure 1d). In contrast, expression was undetectably low in most non-green tissues, including roots, petals and stamens

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

When the levels of polyadenylated transcripts of ... psbA ... were determined by quantitative (q)RT-PCR (see Experimental Procedures), they were found to be generally very low (Cp values of 34–35 cycles for psbA ... This is consistent with previous data and the notion that polyadenylated mRNAs represent short-lived degradation intermediates (Kudla et al., 1996; Lisitsky et al., 1996). No significant differences were observed between the RNase E mutant and the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

we quantified cytosolic and chloroplast ribosomes in fractionated polysome gradients. The results clearly show that ribosome coverage of chloroplast mRNAs is much less dense in RNase E mutants, as evidenced by the strong decline in the 16S rRNA : 18S rRNA ratio with increasing sucrose density in the gradient and undetectably low levels of plastid ribosomes in the bottom fractions of the gradient (Figure 6c). As expected, coverage of cytosolic mRNAs with ribosomes is unaffected in the RNase E knockout plants

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the RNase E mutants ... psaI ... a massive overaccumulation of unprocessed polycistronic precursor transcripts occurred

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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Mature ... psbA mRNAs accumulated to very similar levels in the wild type, heterozygous RNase E mutants and homozygous RNase E mutants ... suggesting that RNase E does not contribute significantly to controlling the mRNA levels of these genes, at least not under photoautotrophic growth conditions in soil

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

the gene for the cytochrome f subunit of the cytochrome b6f complex, petA, and the PSI genes psaI and ycf4 are part of the same operon that is transcribed as a large polycistronic precursor transcript of approximately 8 kb. This precursor transcript also includes the upstream rbcL gene (Figure S2), indicating that it originates from the rbcL promoter and spans the rbcL, accD, psaI, ycf4, ycf10 and petA genes, which all have the same transcriptional orientation (Figure S1). The 8 kb precursor RNA massively overaccumulates in homozygous RNase E mutants

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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the mRNA most strongly affected by the knockout of RNase E is rpl22, an essential ribosomal protein of the large subunit of the chloroplast ribosome (Figure 5). In the homozygous mutants, mature rpl22 mRNA is hardly detectable and, instead, very long precursor RNA species (>8 kb) accumulate. This raises the possibility that the mutant phenotype of the rne/rne plants (Figure 2) is largely due to plastid ribosome deficiency

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

Two independently generated RNAi lines that both show a reduction of RPL24 expression levels to between 15 and 20% of wild-type levels were analyzed ... Processing of polycistronic transcripts was not defective, and ... the mature psbB mRNA ... accumulated to similar levels to those in the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

When the levels of polyadenylated transcripts of ... rps14 were determined by quantitative (q)RT-PCR (see Experimental Procedures), they were found to be generally very low (Cp values of 34–35 cycles for ... rps14 ... This is consistent with previous data and the notion that polyadenylated mRNAs represent short-lived degradation intermediates (Kudla et al., 1996; Lisitsky et al., 1996). No significant differences were observed between the RNase E mutant and the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

low accumulation levels of the psbE operon transcript in the RNase E mutant plants ... The psbE operon comprises the four small PSII genes psbE, psbF, psbL and psbJ and is transcribed as a tetracistronic mRNA that remains tetracistronic and does not undergo cleavage into monocistronic units (Willey and Gray, 1989). Disturbed plastid gene expression has been shown to result in reduced psbE operon transcription and RNA accumulation

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the RNase E mutants ... rpl20 ... massive overaccumulation of unprocessed polycistronic precursor transcripts occurred

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the rne/rne mutants ... trnR-ACG ... even showed a stronger accumulation of the mature RNA than in the wild type

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the RNase E mutants ... rpl23 ... a massive overaccumulation of unprocessed polycistronic precursor transcripts occurred

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the RNase E mutants ... psbB ... a massive overaccumulation of unprocessed polycistronic precursor transcripts occurred

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

The rpoA transcript, encoding the a-subunit of the plastid-encoded RNA polymerase appears to be an exceptional case. Like most of the other genes analyzed, it displays overaccumulation of unprocessed precursors, but, in addition, it also shows strong accumulation of a shorter than normal RNA species (Figure 5). This RNA is much shorter than the reading frame of rpoA (approximately 1 kb) and therefore cannot represent a functional mRNA. It could either result from aberrant transcript processing and/or represent a degradation intermediate that is short lived in the wild type, but accumulates stably in the RNase E mutant

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the RNase E mutants ... 5' exon of the trans-spliced rps12 ... a massive overaccumulation of unprocessed polycistronic precursor transcripts occurred

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in RNase E mutant plants ... Immunoblot analyses using antibodies against diagnostic subunits of the multiprotein complexes in the thylakoid membrane directly confirmed the reduced accumulation of both photosystems

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the rne/rne mutants ... rpl20 ... while showing a strong overaccumulation of precursors, did not display a reduction in the mature mRNA species

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

in the rne/rne mutants ... abnormal accumulation of precursor transcripts was seen for a tRNA gene, trnI-GAU, albeit accompanied with a less drastic reduction in the mature RNA

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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To confirm active transcription of the putative RNase E gene, RNA was extracted from whole plants, an Arabidopsis cell culture, young seedlings and leaf samples. Transcript accumulation was detectable in leaves but was undetectably low in all other samples (Figure 1c). When poly(A)+ RNA was analyzed instead of total cellular RNA strong hybridization signals were obtained, confirming that the RNase E gene is actively expressed, at least at the mRNA level

Walter M, Piepenburg K, Schöttler MA, Petersen K, Kahlau S, Tiller N, Drechsel O, Weingartner M, Kudla J, Bock R - Knockout of the plastid RNase E leads to defective RNA processing and chloroplast ribosome deficiency

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  • Gene expression

SHR belongs to a small clade of GRAS genes that includes SCARECROW-LIKE29 (SCL29) and SCL32 (Bolle, 2004; Lee et al., 2008). Therefore, we asked whether SCL29 and SCL32 were expressed in the leaf in a pattern similar to that of SHR. To address this question, we visualized expression of transcriptional and translational fusions of SCL29 or SCL32 to YFP in 4-DAG first leaves ... activity of SCL32 fusions was detected at nearly all subepidermal positions

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

Expression of SHR in second loops of 4-DAG leaves (Fig. 2H; compare with Fig. 1D and Fig. 2E), suggests that, like ATHB8 (Kang and Dengler, 2004; Scarpella et al., 2004), SHR is expressed in ground cells that have shifted to preprocambial state

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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At 2 DAG ... ATHB8::HTA6:EYFP signals were confined to a single cell file along the midline of the leaf primordium (Fig. 3A,E). At 3 DAG ... ATHB8 transcriptional fusions were expressed in narrow domains at sites of midvein and first loop formation ... At 4 DAG, slender zones of ... ATHB8::HTA6:EYFP activity marked appearance of midvein, first and second loops, and higher-order veins

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

Finally, at 5 DAG, SHR ... promoters directed expression in ... higher-order veins

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

Finally, at 5 DAG, SHR ... promoters directed expression in ... first, second, and third loops ... veins

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

Finally, at 5 DAG ... ATHB8 promoters directed expression in developing midvein

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

Finally, at 5 DAG, SHR ... promoters directed expression in developing midvein

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

Finally, at 5 DAG ... ATHB8 promoters directed expression in ... first, second, and third loops ... veins

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

Finally, at 5 DAG ... ATHB8 promoters directed expression in ... higher-order veins

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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  • Gene expression

SHR belongs to a small clade of GRAS genes that includes SCARECROW-LIKE29 (SCL29) and SCL32 (Bolle, 2004; Lee et al., 2008). Therefore, we asked whether SCL29 and SCL32 were expressed in the leaf in a pattern similar to that of SHR. To address this question, we visualized expression of transcriptional and translational fusions of SCL29 or SCL32 to YFP in 4-DAG first leaves ... While expression of SCL29 fusions was confined to epidermal cells

Gardiner J, Donner TJ, Scarpella E - Simultaneous activation of SHR and ATHB8 expression defines switch to preprocambial cell state in Arabidopsis leaf development

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syp21amisyp22-1 ... accumulated much higher levels of TGG1 than did single mutants or syp21 syp23

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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The intensity of GUS staining was slightly higher in proSYP21:GUS plants than in proSYP23:GUS plants

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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syp22 syp23 ... accumulated much higher levels of TGG1 than did single mutants or syp21 syp23

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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The broad expression patterns of SYP21 and SYP23 were similar to that of SYP22

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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  • Gene expression

the triple mutant syp21amisyp22-1 syp23 accumulated much higher levels of TGG1 than did single mutants or syp21 syp23

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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  • Gene expression

The intensity of GUS staining was slightly higher in proSYP21:GUS plants than in proSYP23:GUS plants

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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  • Gene expression

The broad expression patterns of SYP21 and SYP23 were similar to that of SYP22

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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  • Gene expression

we constructed a translational fusion of GFP to the 5′-end of the genomic SYP23Col-0 sequence (SYP23g; Figure 6a) and introduced it into syp22-3 syp23. GFP-SYP23Col-0 complemented the defect in syp23 (Figure S4), indicating that GFP–SYP23Col-0 is functional. Subcellular fractionation followed by immunoblot analysis showed that GFP–SYP23Col-0 was present in the supernatant fraction (S100) after ultracentrifugation at 100 000 g (Figure 6b), suggesting that most GFP–SYP23Col-0 is not associated with the membrane. Consistent with this result, GFP fluorescence of GFP–SYP23Col-0 was observed in the cytosol of leaf cells (Figure 6c,d) and root cells (Figure 6e,f). In addition, we observed the same subcellular localization of SYP23 by using both the SYP23Col-0 cDNA fused to the 5′-end of GFP (SYP23Col-0-GFP ) (Figure 6g) and the genomic sequence fused to the 3′-end of mRFP (mRFP-SYP23Col-0) (Figure S5). mRFP–SYP23Col-0 complemented the defect in syp23 (Figure S6), indicating that mRFP–SYP23Col-0 is functional. These results suggest that SYP23 is localized in the cytosol

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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  • Gene expression

syp21amisyp22-3 ... accumulated much higher levels of TGG1 than did single mutants or syp21 syp23

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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  • Gene expression

The broad expression patterns of SYP21 and SYP23 were similar to that of SYP22

Shirakawa M, Ueda H, Shimada T, Koumoto Y, Shimada TL, Kondo M, Takahashi T, Okuyama Y, Nishimura M, Hara-Nishimura I - Arabidopsis Qa-SNARE SYP2 proteins localized to different subcellular regions function redundantly in vacuolar protein sorting and plant development

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  • Gene expression

we examined the transcriptional expression pattern of APUM23 in wild-type Col-0 plants by quantitative RT-PCR. APUM23 was expressed in all organs tested, including leaves, flowers, stems, siliques and roots

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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We therefore examined APUM23 expression in wild-type Col-0 seedlings treated with 3% glucose and 5% sucrose ... expression of APUM23 was increased within 30 min, and the elevated expression level was maintained for up to 6 h. This suggests that APUM23 expression is dependent on the nutrient supply in metabolically active tissues. This result was also confirmed by supplementation of PAPUM23:GUS transgenic plants with either glucose

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

Compared to wild-type, apum23-1 showed accumulation of the unprocessed form of 18S rRNA (Figure 6b, upper panel). The bands were cloned and sequenced, and were found to include the following: the 5'ETS (563 nt from the P site to the 5' end of mature 18S rRNA), part of 18S rRNA depending on the primer position (204 nt from the 5' end of 18S rRNA to the position of primer 18S cRT-PCR F and 56 nt from primer 18S cRT-PCR R to the 3' end of the 18S rRNA), part of ITS1 containing 192 nt ending at the conserved site AAGGAAC, and 15–33 nt long poly(A) tails (Figure 6b, lower panel)

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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No difference was detected between wild-type and apum23-1 for band pattern or intensity in the 5S rRNA blot (Figure 6c), suggesting that 5S rRNA processing is not affected in the apum23-1 mutant

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

in the apum23-1 mutant ... Hybridization of total RNA using probes specific for 5'ETS + 18S, 18S, ITS1, 5.8S, ITS2 and 25S rRNAs, respectively, resulted in detection of a higher level of 35S pre-rRNA

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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In apum23-1, we found a 281 nt polyadenylated pre-rRNA that contained 5.8S rRNA (164 nt) and ITS2 (117 nt, ending at the sequence CGGTGG), in addition to a poly(A)12–18 tail (Figure 6c). However, we did not detect a mis-processed 5' end of the 281 nt pre-rRNA using circular RT-PCR

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

This result was verified by a GUS histochemical assay using PAPUM23:GUS transgenic plants. GUS staining of homozygous T3 transgenic plants indicated that APUM23 is ... expressed ... in rapidly expanding tissues such as cotyledons of germinating seedlings

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

identified in the microarray data ... AtNuc-L2 was greatly up-regulated in apum23-1 plants

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

when hybridization was performed using poly(A) RNA, a band at approximately 2.6 kb was detected in blots for 5'ETS + 18S, 18S and ITS1 fragment-specific probes (Figure 5b,c; indicated by a white asterisk), but not for 5.8S, ITS2, 25S and 3'ETS probes, suggesting that the apum23-1 mutant is impaired in degradation of polyadenylated maturation by-products

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

we assessed the localization of a C-terminal APUM23–GFP translational fusion protein in the root cells of transgenic Arabidopsis ... Confocal microscopy showed that the GFP signal was localized to the nucleolus; it was distinct from the AtCoilin localization and surrounded by DAPI fluorescence ... indicating that APUM23–GFP is localized to the nucleolus. To confirm that the GFP fluorescence emanated from the nucleolus, we examined tobacco leaf cells transiently expressing APUM23–GFP and mRFP–AtFibrillarin2 (mRFP–AtFib2) fusion proteins simultaneously (Figure 4g–i). Confocal imaging showed co-localization of GFP and RFP signals in the nucleolus, but not in the Cajal body. As fibrillarin localizes to both the nucleolus and the Cajal body while, Coilin resides only in the Cajal body, it is clear that APUM23–GFP localized to the nucleolus

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

This result was verified by a GUS histochemical assay using PAPUM23:GUS transgenic plants. GUS staining of homozygous T3 transgenic plants indicated that APUM23 is ... expressed ... in the early developing leaf

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

no expression of APUM23 was seen in fully expanded cotyledons

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

no expression of APUM23 was seen in fully expanded ... leaves

Abbasi N, Kim HB, Park NI, Kim HS, Kim YK, Park YI, Choi SB - APUM23, a nucleolar Puf domain protein, is involved in pre-ribosomal RNA processing and normal growth patterning in Arabidopsis

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  • Gene expression

we undertook to amplify segments of HAM orthologs AtHAM1, AtHAM2, and AtHAM3 by reverse transcription (RT)-PCR from cDNA derived from entire vegetative shoots ... using primer sets that discriminate full-length transcripts from MIR170/171 cleavage products ... AtHAM3 are consistently amplified from all tissues surveyed

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

AtHAM1 expression is maintained in differentiating stem provasculature

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

we performed in situ hybridization experiments to determine the localization of AtHAM1 expression in shoot apices of 12-d-old wild-type seedlings. In situ hybridization reveals the expression of AtHAM1 in ... differentiating leaf primordia, with the level of expression elevated in interior regions of leaf primordia

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

we undertook to amplify segments of HAM orthologs AtHAM1, AtHAM2, and AtHAM3 by reverse transcription (RT)-PCR from cDNA derived from entire vegetative shoots ... using primer sets that discriminate full-length transcripts from MIR170/171 cleavage products ... AtHAM2 ... consistently amplified from all tissues surveyed

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

We identified insertional mutant alleles, predicted to confer complete loss of function ... AtHAM2 ... Consistent with the insertions generating null loss-of-function (knockout) alleles, wild-type transcripts are not detectable by RT-PCR in homozygous insertion allele backgrounds

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

we undertook to amplify segments of HAM orthologs AtHAM1, AtHAM2, and AtHAM3 by reverse transcription (RT)-PCR from cDNA derived from entire vegetative shoots ... using primer sets that discriminate full-length transcripts from MIR170/171 cleavage products. AtHAM1 ... consistently amplified from all tissues surveyed

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

Within the shoot meristem, AtHAM1 expression exhibits a gradient of expression ... increasing expression progressing downward into L3 meristem cells

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

we undertook to amplify segments of HAM orthologs AtHAM1, AtHAM2, and AtHAM3 by reverse transcription (RT)-PCR from cDNA derived from ... mature rosette leaves ... using primer sets that discriminate full-length transcripts from MIR170/171 cleavage products ... AtHAM2 ... consistently amplified from all tissues surveyed

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

basal of the shoot meristem boundary, there is a sharp decrease or cessation in AtHAM1 expression

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

We identified insertional mutant alleles, predicted to confer complete loss of function ... AtHAM3 ... Consistent with the insertions generating null loss-of-function (knockout) alleles, wild-type transcripts are not detectable by RT-PCR in homozygous insertion allele backgrounds

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

we performed in situ hybridization experiments to determine the localization of AtHAM1 expression in shoot apices of 12-d-old wild-type seedlings. In situ hybridization reveals the expression of AtHAM1 in young leaves

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

we undertook to amplify segments of HAM orthologs AtHAM1, AtHAM2, and AtHAM3 by reverse transcription (RT)-PCR from cDNA derived from ... mature rosette leaves ... using primer sets that discriminate full-length transcripts from MIR170/171 cleavage products ... AtHAM1 ... consistently amplified from all tissues surveyed

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

We identified insertional mutant alleles, predicted to confer complete loss of function, for AtHAM1 ... Consistent with the insertions generating null loss-of-function (knockout) alleles, wild-type transcripts are not detectable by RT-PCR in homozygous insertion allele backgrounds

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

we undertook to amplify segments of HAM orthologs AtHAM1, AtHAM2, and AtHAM3 by reverse transcription (RT)-PCR from cDNA derived from ... mature rosette leaves ... using primer sets that discriminate full-length transcripts from MIR170/171 cleavage products ... AtHAM3 are consistently amplified from all tissues surveyed

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

Within the shoot meristem, AtHAM1 expression exhibits a gradient of expression, with the lowest level of expression in the meristem L1 layer

Engstrom EM, Andersen CM, Gumulak-Smith J, Hu J, Orlova E, Sozzani R, Bowman JL - Arabidopsis homologs of the petunia hairy meristem gene are required for maintenance of shoot and root indeterminacy

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  • Gene expression

the expression ... was down-regulated ... Overexpression of PAR1-G or truncated AHC-G and HC-G also had very similar effects on the auxin-induced levels of transcripts encoding SAUR15

Galstyan A, Cifuentes-Esquivel N, Bou-Torrent J, Martinez-Garcia JF - The shade avoidance syndrome in Arabidopsis: a fundamental role for atypical basic helix-loop-helix proteins as transcriptional cofactors

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  • Gene expression

we investigated whether PAR1 could be converted into a transcriptional activator by fusing it to the transactivating domain of the herpes viral protein VP16 (VP16-AD). Despite the non-plant origin of this protein, fusions of VP16-AD to plant DNA-binding transcription factors have been successfully used to convert transcriptional repressors into activators (Steindler et al., 1999; Parcy et al., 2002; Sawa et al., 2002). In the absence of direct or indirect access to DNA regulatory sequences, overexpression of PAR1 fused to VP16-AD (P35S:PAR1-V lines, Figure 3a) was expected to result in a phenotype virtually identical to that observed by overexpressing a wild-type version of PAR1. In agreement, P35S:PAR1-V lines ... simulated shade-induced SAUR15 ... expression

Galstyan A, Cifuentes-Esquivel N, Bou-Torrent J, Martinez-Garcia JF - The shade avoidance syndrome in Arabidopsis: a fundamental role for atypical basic helix-loop-helix proteins as transcriptional cofactors

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  • Gene expression

All variants containing the N-terminal region of PAR1 (N-G, NA-G and NAH-G) were mainly localized in the nuclei

Galstyan A, Cifuentes-Esquivel N, Bou-Torrent J, Martinez-Garcia JF - The shade avoidance syndrome in Arabidopsis: a fundamental role for atypical basic helix-loop-helix proteins as transcriptional cofactors

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  • Gene expression

we selected At5g57780 as a molecular marker of PAR1 or PAR2 overexpression (At5g57780 expression was reduced in plants with increased PAR1 activity). As shown in Figure 2(a,b), the expression of this gene was down-regulated only in P35S:AHC-G and P35S:HC-G seedlings, as well as in the P35S:PAR1-G control line

Galstyan A, Cifuentes-Esquivel N, Bou-Torrent J, Martinez-Garcia JF - The shade avoidance syndrome in Arabidopsis: a fundamental role for atypical basic helix-loop-helix proteins as transcriptional cofactors

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  • Gene expression

we investigated whether PAR1 could be converted into a transcriptional activator by fusing it to the transactivating domain of the herpes viral protein VP16 (VP16-AD). Despite the non-plant origin of this protein, fusions of VP16-AD to plant DNA-binding transcription factors have been successfully used to convert transcriptional repressors into activators (Steindler et al., 1999; Parcy et al., 2002; Sawa et al., 2002). In the absence of direct or indirect access to DNA regulatory sequences, overexpression of PAR1 fused to VP16-AD (P35S:PAR1-V lines, Figure 3a) was expected to result in a phenotype virtually identical to that observed by overexpressing a wild-type version of PAR1. In agreement, P35S:PAR1-V lines ... simulated shade-induced ... SAUR68 gene expression

Galstyan A, Cifuentes-Esquivel N, Bou-Torrent J, Martinez-Garcia JF - The shade avoidance syndrome in Arabidopsis: a fundamental role for atypical basic helix-loop-helix proteins as transcriptional cofactors

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  • Gene expression

the expression ... was down-regulated ... Overexpression of PAR1-G or truncated AHC-G and HC-G also had very similar effects on the auxin-induced levels of transcripts encoding ... SAUR68

Galstyan A, Cifuentes-Esquivel N, Bou-Torrent J, Martinez-Garcia JF - The shade avoidance syndrome in Arabidopsis: a fundamental role for atypical basic helix-loop-helix proteins as transcriptional cofactors

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  • Gene expression

AtTZF1 was rapidly repressed by as little as 0.1% glucose (Figure 1a,b). As hexokinase (HXK) is important for sugar signaling (Jang et al., 1997; Moore et al., 2003), we used a variety of sugars (Xiao et al., 2000) to determine the role of HXK in sugar repression of AtTZF1. The results showed that the preferred substrates of HXK, including glucose and mannose, triggered strong repression, whereas poor substrates of HXK, such as mannitol and 3-O-methyl glucose (3-OMG) and non-permeable l-glucose, did not

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... ABA marker genes ... COR15A were up-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... GA-Stimulated Arabidopsis 6 (GASA6, At1g74670

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... brassinosteroid-insensitive mutant suppressor 1 (BRS1, At4g30610

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... At4g35770

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

The results showed that ABA alone did not affect AtTZF1 expression, and glucose repression remained unchanged in the presence of ABA

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... ASN1/DIN6 (At3g47340

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

genes involved in cold (KIN1 ... were up-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... EXPA ... 8

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

glucose repression was unaffected in ... the ABA biosynthetic mutant aba2-1, suggesting that ABA is not directly involved in glucose repression of AtTZF1

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

GA marker genes ... GAI ... down-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... EXPA ... 11

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... pectate lyase ... At5g48900

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... up-regulated genes ... KIN1

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

glucose repression of AtTZF1 was reduced in HXK loss-of-function plants, including ... antisense HXK2

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

glucose repression of AtTZF1 was reduced in HXK loss-of-function plants, including antisense HXK1

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... At2g17880

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... pectate lyase ... At3g07010

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... BRS1 ... down-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

The results of our RNA gel-blot analyses showed that both GASA6 ... repressed by ABA at 10 µm concentration

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... enhanced expression of the ABA/cold tolerance marker genes ... KIN1 ... under non-acclimatized conditions

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... expression of the major flowering repressor FLC ... was higher in OE1 plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

The expression level of GASA6 decreased with age in WT plants, but it expressed at consistently low levels ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... ABA marker genes RD29A ... up-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... up-regulated genes ... COR15a

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... At5g57760

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... enhanced expression of the ABA/cold tolerance marker genes COR15A ... under non-acclimatized conditions

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... expression of the central flowering promoter SOC1 was also reduced in OE1 plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... cutin biosynthetic acyltransferase (At4g00400

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... lipase ... At5g45950

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... At1g66760

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... GA marker genes AtEXP1 ... down-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... enhanced expression of the ABA/cold tolerance marker genes ... RD29A ... under non-acclimatized conditions

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

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Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... SEN1 ... down-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... GASA6 ... down-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... EXPA3

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... genes involved in ... drought (ERD11) responses were up-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... ASN1 ... down-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

The results of our RNA gel-blot analyses showed that both GASA6 ... induced by GA

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RNA gel-blot and quantitative RT-PCR analyses were used to confirm the results of the microarray analyses ... AtEXP8 ... down-regulated ... in AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... Consistent with the role of FT as a florigen ... its level was reduced in OE1 plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

The results of our RNA gel-blot analyses showed that ... GASA4 ... repressed by ABA at 10 µm concentration

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

The results of our RNA gel-blot analyses showed that ... GASA4 ... induced by GA

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

35S:AtTZF1 ... down-regulated genes ... lipase ... At4g18970

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

the expression of GASA4 declined in 6-week-old WT plants. However, GASA4 expression declined to a lesser extent in 6-week-old ... AtTZF1 OE plants

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

glucose repression of AtTZF1 was reduced in HXK loss-of-function plants, including ... HXK1 knockout mutant gin2

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

glucose repression was unaffected in the ABA signaling mutant abi4-1 ... suggesting that ABA is not directly involved in glucose repression of AtTZF1

Lin PC, Pomeranz MC, Jikumaru Y, Kang SG, Hah C, Fujioka S, Kamiya Y, Jang JC - The Arabidopsis tandem zinc finger protein AtTZF1 affects ABA- and GA-mediated growth, stress and gene expression responses

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  • Gene expression

RPL27aC transcripts were detected uniformly throughout early globular ... stage embryos ... stage

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

STM:STM-VENUS was absent or expressed at low levels in enlarged rpl27ac-1d globular-stage embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

CUC2:CUC2-VENUS was detected in the outer cell layers of rpl27ac-1d embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

RPL27aC ... Transcripts ... were detected at similar levels in all shoot tissues examined

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

CUC2:CUC2-VENUS was expressed in the shoot meristem region of transition- and heart-stage wild-type embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

In rpl27ac-1d mutants, FIL:dsRED ... was weakly expressed in enlarged globular embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

In rpl27ac-1d ... PHB ... expressed in the apical and central regions of enlarged globular embryos, in a pattern similar to wild-type

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

In rpl27ac-1d mutants, FIL:dsRED was not detected ... in enlarged globular embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

In wild-type, STM:STM-VENUS expression was detected in the shoot meristem of transition- and heart-stage embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

RPL27aB ... Transcripts ... were detected at similar levels in all shoot tissues examined

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

PHB ... expressed in the apical and central regions of wild-type embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

STM:STM-VENUS was ... clearly detected in the shoot meristem of later-stage rpl27ac-1d embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

PDF1 transcripts were detected specifically in the outer L1 cell layer of wild-type embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

REV:REV-VENUS ... expressed in the apical and central regions of wild-type embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

The level of RPL27aC transcripts was also reduced in rpl27ac-3 compared to wild-type

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

In rpl27ac-1d, CUC2:CUC2-VENUS was detected in the apical region of enlarged globular-stage embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

PDF1 expression was also confined to the outer cell layer in rpl27ac-1d embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

ectopic expression of STM:STM-VENUS was also detected in outer cell layers of rpl27ac-1d embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

In rpl27ac-1d, REV:REV-VENUS ... expressed in the apical and central regions of enlarged globular embryos, in a pattern similar to wild-type

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

RPL27aC transcripts were detected uniformly throughout ... heart-stage embryos

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

RPL27aC transcripts were detected in rpl27ac-2, but their abundance was significantly reduced relative to wild-type

Szakonyi D, Byrne ME - Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana

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  • Gene expression

SPA2–HA ... accumulated to lower levels under FRc than in darkness ... the effect of light on SPA–HA protein levels is not reflected in the respective SPA–HA transcript levels

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

we generated transgenic lines expressing transcriptional fusions of the ... SPA2 5' regulatory sequences with GUS ... SPA2 promoters conferred ubiquitous expression in all tissues examined

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA2 5' regulatory sequences with GUS ... Cross-sections through leaves show that both promoters conferred high expression in mesophyll cells

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

we generated specific antibodies against SPA1 and SPA2. SPA1 protein levels were slightly reduced by FRc exposure (Figure 8a,b), despite the observed FRc-induced increase in SPA1 transcript levels

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

we generated transgenic lines expressing transcriptional fusions of the SPA1 ... 5' regulatory sequences with GUS ... In seedlings grown in darkness and under continuous far-red light (FRc), expression was detected in cotyledons, the hypocotyl and the root

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA1 ... 5' regulatory sequences with GUS ... In differentiated leaves, GUS activity predominated in vascular bundles

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA1 ... 5' regulatory sequences with GUS ... Cross-sections through leaves show ... lower, but detectable, expression in the epidermis

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA2 5' regulatory sequences with GUS ... Cross-sections through leaves show ... lower, but detectable, expression in the epidermis

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA1 ... 5' regulatory sequences with GUS ... Cross-sections through leaves show that both promoters conferred high expression in mesophyll cells

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA2–HA protein accumulated to lower levels than SPA1–HA when expressed from the same promoter ... When expressed from the SPA1 promoter, SPA2–HA levels in FRc were approximately 3–10-fold lower than those of SPA1–HA. Similarly, when expressed from the SPA2 promoter, SPA2–HA levels in FRc were approximately 4–15-fold lower than those of SPA1–HA

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

we generated transgenic lines expressing transcriptional fusions of the SPA1 ... Young leaves also accumulated GUS activity ubiquitously

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

we generated transgenic lines expressing transcriptional fusions of the ... SPA2 5' regulatory sequences with GUS ... Young leaves also accumulated GUS activity ubiquitously

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA2 protein levels were strongly reduced by light, but SPA2 transcript levels were not reduced

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

we generated transgenic lines expressing transcriptional fusions of the SPA1 ... 5' regulatory sequences with GUS ... SPA1 ... promoters conferred ubiquitous expression in all tissues examined

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA2 5' regulatory sequences with GUS ... In differentiated leaves, GUS activity predominated in vascular bundles

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA1–HA ... accumulated to lower levels under FRc than in darkness ... the effect of light on SPA–HA protein levels is not reflected in the respective SPA–HA transcript levels

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

we generated transgenic lines expressing transcriptional fusions of the ... SPA2 5' regulatory sequences with GUS ... In seedlings grown in darkness and under continuous far-red light (FRc), expression was detected in cotyledons, the hypocotyl and the root

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA2–HA protein levels were strongly reduced within 1 h of FRc irradiation (Figure 7a,b), indicating that light causes a rapid decrease in SPA–HA protein levels ... SPA–HA transcript levels were not altered by light exposure (Figure 7d), suggesting that light down-regulates SPA–HA protein levels post-transcriptionally by causing SPA protein degradation

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

SPA1–HA ... protein levels were strongly reduced within 1 h of FRc irradiation (Figure 7a,b), indicating that light causes a rapid decrease in SPA–HA protein levels ... SPA–HA transcript levels were not altered by light exposure (Figure 7d), suggesting that light down-regulates SPA–HA protein levels post-transcriptionally by causing SPA protein degradation

Balcerowicz M, Fittinghoff K, Wirthmueller L, Maier A, Fackendahl P, Fiene G, Koncz C, Hoecker U - Light exposure of Arabidopsis seedlings causes rapid de-stabilization as well as selective post-translational inactivation of the repressor of photomorphogenesis SPA2

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  • Gene expression

the reciprocal hybrids from crossing the strongest overexpressors, i.e. AtPDX1.1 OE line 2 and AtPDX2 OE line 4 were chosen for detailed analysis. For clarity, the hybrid resulting from AtPDX1.1 OE L2 as male parent and AtPDX2 OE L4 as female parent is designated line 1 and that from AtPDX1.1 OE L2 as female parent and AtPDX2 OE L4 as male parent is designated line 2 (Figure 2c). The free vitamin B6 content of shoot material from the double overexpressors was increased up to four-fold over wild-type ... it appears that the ... SOS4 transcript levels are ... downregulated

Raschke M, Boycheva S, Crèvecoeur M, Nunes-Nesi A, Witt S, Fernie AR, Amrhein N, Fitzpatrick TB - Enhanced levels of vitamin B(6) increase aerial organ size and positively affect stress tolerance in Arabidopsis

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  • Gene expression

the reciprocal hybrids from crossing the strongest overexpressors, i.e. AtPDX1.1 OE line 2 and AtPDX2 OE line 4 were chosen for detailed analysis. For clarity, the hybrid resulting from AtPDX1.1 OE L2 as male parent and AtPDX2 OE L4 as female parent is designated line 1 and that from AtPDX1.1 OE L2 as female parent and AtPDX2 OE L4 as male parent is designated line 2 (Figure 2c). The free vitamin B6 content of shoot material from the double overexpressors was increased up to four-fold over wild-type ... it appears that the PDX3 ... transcript levels are upregulated

Raschke M, Boycheva S, Crèvecoeur M, Nunes-Nesi A, Witt S, Fernie AR, Amrhein N, Fitzpatrick TB - Enhanced levels of vitamin B(6) increase aerial organ size and positively affect stress tolerance in Arabidopsis

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  • Gene expression

We found a slight increase in transcript levels of ... YAB5 ... in the leaves of the as2-1 mutant

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

using semi-quantitative RT-PCR ... RPL4D mRNA was undetectable in the T-DNA insertional mutant rpl4d-4

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

mRNA ... levels of its homologue, RPL4A, were similar in ... rpl4d-4 and the wild-type

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

mRNA ... levels of its homologue, RPL4A, were similar in rpl4d-3 ... and the wild-type

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

We found a slight increase in transcript levels of ... ARF3 ... in the leaves of the as2-1 mutant

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

agreement with the synergistic polarity defects observed in rpl4d-3 as2-1 ... expression ... REV were expressed at similar levels in the ... parents

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

using semi-quantitative RT-PCR ... RPL4D mRNA ... was reduced in rpl4d-3

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

RPS6A transcripts were ... similar in rps6a-1 and the wild-type

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

we performed a quantitative real-time PCR analysis. We found a significant reduction in RPL7B expression levels in den5 compared to the wild-type

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

RPS6A transcripts were not detected in the rps6a-2 mutant, which carries a reorganization in RPS6A 3′ UTR

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

In agreement with the synergistic polarity defects observed in rpl4d-3 as2-1, we found a strong increase in ... KAN2 ... expression

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

In agreement with the synergistic polarity defects observed in rpl4d-3 as2-1 ... expression ... PHV ... were expressed at similar levels in ... its parents

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

We found a slight increase in transcript levels ... of ... KAN2 ... in the leaves of the as2-1 mutant

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

transcripts ... levels of its paralogue, RPL6B, were comparable in ... the three rps6a mutants and their wild-type

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

In agreement with the synergistic polarity defects observed in rpl4d-3 as2-1, we found a strong increase in ARF3 ... expression

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

In agreement with the synergistic polarity defects observed in rpl4d-3 as2-1, we found a strong increase in ... YAB5 expression

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

rps6a-3 ... a significant reduction in RPS6A mRNA

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

In agreement with the synergistic polarity defects observed in rpl4d-3 as2 ... - ... 1 ... expression ... PHB ... were expressed at similar levels ... in ... its parents

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

RPS6A transcripts were ... reduced in rps6a-3, which carries a mutation outside the RPS6A transcription unit

Horiguchi G, Mollá-Morales A, Pérez-Pérez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H - Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development

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  • Gene expression

in Atasf1ab ... MCM7 ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We examined by confocal fluorescence microscopy the subcellular localization of EYFP-fused AtASF1A and AtASF1B proteins in the transgenic tobacco BY2 cells. All the fusion proteins were observed in ... the cytoplasm ... EYFP-AtASF1B

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

PARP1 ... also up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... MCM5 ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... MCM3 ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We examined by confocal fluorescence microscopy the subcellular localization of EYFP-fused AtASF1A and AtASF1B proteins in the transgenic tobacco BY2 cells. All the fusion proteins were ... absent from the nucleolus ... EYFP-AtASF1A

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

RAD51C ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

AtASF1B ... ubiquitously expressed in most of the Arabidopsis plant tissues

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

SMC6A ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... Ku70 ... barely affected

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We examined by confocal fluorescence microscopy the subcellular localization of EYFP-fused AtASF1A and AtASF1B proteins in the transgenic tobacco BY2 cells. All the fusion proteins were observed in ... the nucleus ... EYFP-AtASF1A

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... XRCC4 ... barely affected

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

RAD51 ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We examined by confocal fluorescence microscopy the subcellular localization of EYFP-fused AtASF1A and AtASF1B proteins in the transgenic tobacco BY2 cells. All the fusion proteins were observed in ... the cytoplasm ... EYFP-AtASF1A

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

Our quantitative RT-PCR analysis revealed that expression of H3.1 ... is increased by above 1.5-fold in Atasf1ab compared to WT

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... CDC6B ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... CDT1B ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

Our quantitative RT-PCR analysis revealed that expression of H3.1 and CYCB1;1, but not ... CYCA2;1, is increased ... in Atasf1ab compared to WT

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We examined by confocal fluorescence microscopy the subcellular localization of EYFP-fused AtASF1A and AtASF1B proteins in the transgenic tobacco BY2 cells. All the fusion proteins were observed in ... the nucleus ... EYFP-AtASF1B

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We found that ... ATM ... up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

RAD54 ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

SMC6B ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

BRCA2a ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

In Atasf1ab, only ... RAD54 ... induced by HU, and the other examined genes (excepting those of the NHEJ pathway) remained at relatively similar high levels in HU-treated and HU-untreated plants

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

Our quantitative RT-PCR analysis revealed that expression of H3.1 and CYCB1;1, but not CYCD3;3 ... is increased ... in Atasf1ab compared to WT

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

AtASF1A ... ubiquitously expressed in most of the Arabidopsis plant tissues

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... CDT1A ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

In Atasf1ab, only RAD51 ... induced by HU, and the other examined genes (excepting those of the NHEJ pathway) remained at relatively similar high levels in HU-treated and HU-untreated plants

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

PARP2 ... also up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... MCM4 ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... CDC6A ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

RAD17 ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We examined by confocal fluorescence microscopy the subcellular localization of EYFP-fused AtASF1A and AtASF1B proteins in the transgenic tobacco BY2 cells. All the fusion proteins were ... absent from the nucleolus ... EYFP-AtASF1B

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

XRCC3 ... significantly up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... PCNA1 ... up-regulated

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

Our quantitative RT-PCR analysis revealed that expression of ... CYCB1;1 ... is increased by above 1.5-fold in Atasf1ab compared to WT

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

We found that ... ATR ... up-regulated in Atasf1ab

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

in Atasf1ab ... Ku80 ... barely affected

Zhu Y, Weng M, Yang Y, Zhang C, Li Z, Shen WH, Dong A - Arabidopsis homologues of the histone chaperone ASF1 are crucial for chromatin replication and cell proliferation in plant development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... KNAT1 ... promoter activity was observed in foci within the blade that could correspond to the developing ectopic meristems and in the sinus region between outgrowing leaflets

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

RT-PCR indicated that ... CUC2 mRNAs ... were detected in developing leaves

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... MIR164A ... exhibited stronger ... expression

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

no CUC1 mRNA could be detected in developing leaves

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

ProCUC3:GUS ... GUS activity is absent from the sinus of older teeth

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... KNAT2 ... promoter activity was observed in foci within the blade that could correspond to the developing ectopic meristems and in the sinus region between outgrowing leaflets

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

RT-PCR indicated that CUC3 mRNAs ... were detected in developing leaves

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

ProCUC3:GUS ... Later, GUS activity marks the sinus of the developing serrations

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... MIR164A ... exhibited ... ectopic expression in regions where ectopic KNOX expression occurred

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... CUC3 ... exhibited stronger ... expression

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

cuc2-1 mutant lines expressing CUC3 under the control of the CUC2 promoter ... MIR164A ... expression remained faint

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

in the cuc2-1 background ... Expression of the CUC1 protein under the control of the CUC2 promoter ... activated CUC2 ... promoter expression in the leaf blade margin

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line, CUC2 ... exhibited stronger ... expression

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

ProCUC2:GUS ... is absent from the blade of the cuc2-1 mutant and limited to the blade–petiole junction and leaf base

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... CUC3 ... exhibited ... ectopic expression in regions where ectopic KNOX expression occurred

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

Expression of the control construct ProCUC2:CUC2 in the cuc2-1 background restored ... proper activities of ... MIR164A ... at the blade margin

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

ProCUC3:GUS ... is absent from the blade of the cuc2-1 mutant ... and limited ... to the leaf base

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... KNOX reporter activity was limited to the base of the petiole of both the wild type and mir164a-4 mutants

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

cuc2-1 mutant lines expressing CUC3 under the control of the CUC2 promoter ... CUC3 expression remained faint

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

in the cuc2-1 background ... Expression of the CUC1 protein under the control of the CUC2 promoter ... activated ... CUC3 ... promoter expression in the leaf blade margin

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line, CUC2 ... exhibited ... ectopic expression in regions where ectopic KNOX expression occurred

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

in the cuc2-1 background ... Expression of the CUC1 protein under the control of the CUC2 promoter ... activated ... MIR164A promoter expression in the leaf blade margin

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

ProCUC3:GUS ... was detected at the base of the detached leaves

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

In the mir164a-4 ProCUC2:CUC1 line ... STM promoter activity was observed in foci within the blade that could correspond to the developing ectopic meristems and in the sinus region between outgrowing leaflets

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

ProMIR164A:GUS ... is absent from the blade of the cuc2-1 mutant and limited to ... the leaf tip

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

Expression of the control construct ProCUC2:CUC2 in the cuc2-1 background restored ... proper activities of ... CUC2 ... at the blade margin

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

Expression of the control construct ProCUC2:CUC2 in the cuc2-1 background restored ... proper activities of ... CUC3 ... at the blade margin

Hasson A, Plessis A, Blein T, Adroher B, Grigg S, Tsiantis M, Boudaoud A, Damerval C, Laufs P - Evolution and diverse roles of the CUP-SHAPED COTYLEDON genes in Arabidopsis leaf development

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  • Gene expression

Very few lines expressing GFP–AtNUFIP could be obtained. Moreover, in these lines, the GFP fluorescence was weak and restricted to root cells. GFP–AtNUFIP was localized in the nucleus with a diffused fluorescence in the nucleoplasm and a high concentration in the perinucleolar region (Figure 4b). In meristematic cells from root tips, the fluorescence was concentrated in the external layer of the nucleolus. In elongating root cells, the fluorescence concentrated in perinucleolar foci (Figure 4b). GFP–AtNUFIP was observed neither in the central region of the nucleolus nor in Cajal bodies (Figure 4b). The yellow signal in merged images shows that GFP–AtNUFIP partially co-localized with At15.5K-RFP in the external nucleolar layer and the perinucleolar foci

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

We also analysed expression of the monocistronic C/D snoRNAs U3 and U13. Accumulation of both snoRNAs increased slightly in atnuf-1 and atnuf-2

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

We then analysed the accumulation of intronic C/D snoRNAs nested in protein coding genes. The snoR24 (Figure 6) and snoR40 (Figure S4) encoded by two different intronic cluster showed both a 90% reduction in atnuf mutants compared with wild type seedlings

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

in atnuf-1 and atnuf-2 mutants ... The 15.5K protein is also a core component of U4 snRNP and it was proposed that NUFIP could be implicated in its assembly (Boulon et al., 2008). We tested the accumulation of U4 in the mutants but no effect was observed

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

C/D scaR102 is predicted to target methylation of U5 (Marker et al., 2002) and was confirmed to be located in plant Cajal bodies (Kim et al., 2010). It was originally described as a monocistronic scaRNA. Nevertheless analysis of flanking genomic sequences reveals a potential C/D scaRX just upstream of scaR102 and a cDNA (AY045928) of 385 nucleotides encompassing both sequences is reported in databanks (Figure 8b). A Northern blot with a scaR102 probe revealed an approximately 160 nucleotide RNA and a longer transcript of approximately 370 nucleotides (Figure 8b). Hybridisation with a probe specific to the scaRX sequence detected only the longer RNA (Figure 8b) revealing that the potential scaRX is not produced in vivo. These data indicate that the 370 nucleotides RNA is a stable transcript that accumulates in vivo and is also a precursor for scaR102 but not for potential scaRX. This finding is reminiscent of some scaRNAs described in animals produced from longer transcripts that also accumulate in vivo (Tycowski et al., 2004). Notably, accumulation of both the scaR102 and the longer transcript was affected in both atnuf-1 and atnuf-2 (Figure 8b). This situation confirms the implication of AtNUFIP in C/D scaR102 assembly and in the stabilisation of the longer transcript

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

To determine the subcellular localization of AtNUFIP and At15.5K in vivo, we produced transgenic plants co-expressing GFP–AtNUFIP and At15.5K-RFP under the control of the constitutive 35S CaMV promoter. Several transgenic lines were produced expressing At15.5K-RFP in all tissues. The fluorescence was concentrated in the nucleolus, with major labeling in the center of this compartment, and in small foci associated to the nucleolus

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

These results show that atnuf mutants present a strong reduction of C/D snoRNAs derived from polycistronic precursors which represent the majority of C/D snoRNAs in plants. The C/D snoRNAs derived from monocistronic, single intronic or tRNA-snoRNA precursors as well as the H/ACA snoRNAs show increased accumulation in the mutants

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

in atnuf-1 and atnuf-2 ... This finding indicates that the reduction in C/D snoRNA was not due to reduced accumulation or a maturation defect of the polycistronic precursor in the mutants. This fact was confirmed by semi-quantitative RT-PCR that showed no difference in the snoRNA polycistronic precursor level in the mutants compared with wild type plants

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

To determine the subcellular localization of AtNUFIP and At15.5K in vivo, we produced transgenic plants co-expressing GFP–AtNUFIP and At15.5K-RFP under the control of the constitutive 35S CaMV promoter. Several transgenic lines were produced expressing At15.5K-RFP in all tissues ... These foci correspond to Cajal bodies revealed by co-localization with U2B''-GFP (Figure 4a), a specific marker of this compartment in plants

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

We checked the expression of the AtNUFIP gene in different plant tissues by semi-quantitative RT-PCR. Primers were designed on the ORF extremities to amplify the two types of AtNUFIP mRNAs. These primers encompass several introns to distinguish PCR amplification from genomic DNA (Figure 2a). As a control we assessed expression of eEF1-a constitutive gene. AtNUFIP mRNA was specifically detected on all tissues (Figure 2c). Thus AtNUFIP is expressed constitutively but at a low level because a high number of PCR cycles was required to detect it as compared with eEF1-a mRNA

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

in atnuf mutants ... different situation was observed for the single intronic snoR60 (Barneche et al., 2000) which was not affected

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

in atnuf-1 and atnuf-2 ... Remarkably, accumulation of snoR80, an H/ACA snoRNA derived from the same cluster encoding C/D snoR37, snoR22 and snoR23 showed a 1.7–2.2-fold increase

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

We first tested the accumulation of U14 and other C/D snoRNAs derived from independent polycistronic clusters. The U14 probe should detect the four U14 isoforms of the cluster which are nearly identical. A reduction of 70–80% was observed for U14 in atnuf-1 and atnuf-2 compared with wild type plants

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

in atnuf-1 and atnuf-2 ... Accumulation of snoR22, snoR37 and snoR23 encoded by two duplicated clusters (Barneche et al., 2001) were also drastically reduced in atnuf-1 and atnuf-2 (Figure 6). A similar reduction in both mutants was observed for dicistronic C/D snoRNAs R16 and U43 (Figure 6) and C/D snoRNAs U34a, R19, U36.3, R68 and R40 from six other polycistronic clusters

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

C/D scaR101, predicted to target methylation of U2 (Marker et al., 2002), is encoded by the opposite strand of At1g20690, a predicted gene with no protein-coding capacity. Clearly scaR101 is expressed in wild type plants and is strongly reduced in atnuf-1 and atnuf-2 mutants

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

Finally, we tested the accumulation of C/D snoR43.1, which is processed from a tRNAGly–snoR43 precursor (Kruszka et al., 2003). Northern blots showed a three- to four-fold enhancement of snoR43.1 in both atnuf mutants

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

Reduction of C/D scaRNAs should lead to down-methylation of their target snRNAs. We could not test this hypothesis because the assay requires a large amount of RNA, which could not be obtained from atnuf mutants. Nevertheless Northern blot shows that the accumulation of snRNAs is not affected in atnuf mutants (Figure 8c). This finding suggests that the predicted reduction of snRNA methylation in atnuf mutants does not affect snRNA stability

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

Few H/ACA snoRNA polycistronic clusters have been identified in Arabidopsis thaliana. One of these clusters corresponds to the dicistronic cluster encoding H/ACA snoR141 and snoR77 (Chen and Wu, 2009). Northern blot analysis showed that these snoRNAs presented an approximately two-fold increase in atnuf mutants

Rodor J, Jobet E, Bizarro J, Vignols F, Carles C, Suzuki T, Nakamura K, Echeverría M - AtNUFIP, an essential protein for plant development, reveals the impact of snoRNA gene organisation on the assembly of snoRNPs and rRNA methylation in Arabidopsis thaliana

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  • Gene expression

Quantitative RT-PCR analysis at 12 and 27°C confirmed our microarray results, showing that HFR1 mRNA levels were significantly elevated in 27 versus 12°C in wild-type seedlings

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

Consistent with our previous work, B light promotes the accumulation of slower-migrating phosphorylated forms of HFR1 and this occurs at both 15 and 25°C. Interestingly, warm temperatures lead to a stronger accumulation of both forms of HFR1 compared with cooler conditions

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

As we observed the presence of additional slower-migrating PIF4-HA isoforms at 25°C when compared with 15°C, we wanted to test whether temperature change could alter PIF4 phosphorylation. Loading of the 15°C samples was increased relative to 25°C to facilitate detection at this temperature (Figure 3d). Phosphatase treatment led to a depletion of the slower-migrating forms at 25°C, but had no impact at 15°C, suggesting that warm temperatures promote the accumulation of phosphorylated forms of PIF4-HA (Figure 3d). We detected this temperature-induced accumulation of slower-migrating forms during the dark and light phases of a diurnal cycle and in etiolated seedlings, indicating that their appearance did not depend on photoreceptor activity (Figures 3d and S4b). These data indicate that temperature, as well as light, may regulate PIF4 phosphorylation

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

In 25°C-grown seedlings, HFR1 accumulates more rapidly and to higher levels after transfer to light. Following a peak, detected 1 h post-dawn in our assay, HFR1 levels gradually fall during the course of the photoperiod

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

in 35S::PIF4-HA seedlings, we consistently observed higher levels of PIF4 protein at 25 versus 15°C under B and R photoperiods (Figure 3b,c). When grown in B photoperiods the increase that we observed at 25°C correlated with the presence of additional slower-migrating bands. Here, PIF4 accumulated post-dawn, peaking at 1 h, and then fell gradually during the light period (Figure 3b). This B-light-mediated PIF4 depletion was not observed in R light, although we detected a mild transient dip in PIF4 post-dawn at 25°C (Figure 3c). However, in R light PIF4 was consistently higher at 25°C compared with 15°C, where PIF4 was barely detectable.

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

we performed Arabidopsis Affymetrix microarray analysis ... HFR1, a bHLH transcription factor ... exhibited temperature-dependent regulation that is influenced by phyB loss

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

When seedlings were grown at 15°C, reducing Pfr at the start of the night led to a moderate rise in PIF4–HA levels during the night and a subsequent fall in PIF4–HA levels 2 h post-dawn (Figure S4c). However, at 25°C, PIF4–HA levels were constitutively elevated and EOD FR treatment had no detectable impact on PIF4–HA levels, although we did detect a modest fall in PIF4–HA levels 2 h post-dawn

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

An immunoblot using extracts from seedlings grown in diurnal B light conditions illustrates that at 15°C, HFR1-HA levels rise gradually during the light phase, with a modest peak 8 h post-dawn

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

In B light, HFR1 is particularly effective in restraining hypocotyl growth in the warm. We therefore wanted to establish whether levels of HFR1 protein were subject to temperature regulation under B light. Immunoblot analysis of etiolated seedlings expressing 35S::HFR1-HA illustrates that HFR1 abundance is indeed temperature regulated

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

We have also shown that in wild-type seedlings subjected to diurnal cycles, HFR1 mRNA levels are again highly temperature regulated (Figure S5). Here HFR1 transcript exhibits a diurnal pattern with a peak that coincides with dawn

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

Quantitative RT-PCR analysis at 12 and 27°C confirmed our microarray results, showing that HFR1 mRNA levels were significantly elevated in 27 versus 12°C in wild-type seedlings. Depletion of phyB led to a rise in HFR1 mRNA levels at both temperatures, but a reduced temperature response (wild type, 28.2-fold; phyB, 4.5-fold

Foreman J, Johansson H, Hornitschek P, Josse EM, Fankhauser C, Halliday KJ - Light receptor action is critical for maintaining plant biomass at warm ambient temperatures

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 ... nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Another class of transcripts showing significantly altered expression in nhx5 nhx6 included genes known to have roles in vesicular trafficking (Figure 8B). These included members of the RAB and ARF GTPase family (Rab5 members RABF2 and RAB3Ge), SNARE proteins (VTI12 and NPSN12), as well as vacuolar sorting receptors (VPS35, VPS20, and VSR1), among others (Figure 8B

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

Another class of transcripts showing significantly altered expression in nhx5 nhx6 included genes known to have roles in vesicular trafficking (Figure 8B). These included members of the RAB and ARF GTPase family (Rab5 members RABF2 and RAB3Ge), SNARE proteins (VTI12 and NPSN12), as well as vacuolar sorting receptors (VPS35, VPS20, and VSR1), among others (Figure 8B

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods ... Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Another class of transcripts showing significantly altered expression in nhx5 nhx6 included genes known to have roles in vesicular trafficking (Figure 8B). These included members of the RAB and ARF GTPase family (Rab5 members RABF2 and RAB3Ge), SNARE proteins (VTI12 and NPSN12), as well as vacuolar sorting receptors (VPS35, VPS20, and VSR1), among others (Figure 8B

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

nhx5 nhx6 ... Genes belonging to the GO terms “structural constituent of the ribosome,” “translation,” and “ribosome biogenesis” were also downregulated

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Both NHX5 and NHX6 were expressed in flowers, flower buds, stems, rosette leaves, and roots

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Another class of transcripts showing significantly altered expression in nhx5 nhx6 included genes known to have roles in vesicular trafficking (Figure 8B). These included members of the RAB and ARF GTPase family (Rab5 members RABF2 and RAB3Ge), SNARE proteins (VTI12 and NPSN12), as well as vacuolar sorting receptors (VPS35, VPS20, and VSR1), among others (Figure 8B

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Both NHX5 and NHX6 were expressed in flowers, flower buds, stems, rosette leaves, and roots

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Interestingly, many cell wall–related transcripts were also significantly downregulated, especially those associated with structural proteins (arabinogalactans and facsilins), cell wall–modifying enzymes (expansins, xyloglucan endotransglycosylase, and hydrolases), as well as cell wall–degrading enzymes (polygalacturonase

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Another class of transcripts showing significantly altered expression in nhx5 nhx6 included genes known to have roles in vesicular trafficking (Figure 8B). These included members of the RAB and ARF GTPase family (Rab5 members RABF2 and RAB3Ge), SNARE proteins (VTI12 and NPSN12), as well as vacuolar sorting receptors (VPS35, VPS20, and VSR1), among others (Figure 8B

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Another class of transcripts showing significantly altered expression in nhx5 nhx6 included genes known to have roles in vesicular trafficking (Figure 8B). These included members of the RAB and ARF GTPase family (Rab5 members RABF2 and RAB3Ge), SNARE proteins (VTI12 and NPSN12), as well as vacuolar sorting receptors (VPS35, VPS20, and VSR1), among others (Figure 8B

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 (see Supplemental Figure 3 online). Expression of NHX5 and NHX6 in all knockouts was confirmed with quantitative real-time PCR

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Another class of transcripts showing significantly altered expression in nhx5 nhx6 included genes known to have roles in vesicular trafficking (Figure 8B). These included members of the RAB and ARF GTPase family (Rab5 members RABF2 and RAB3Ge), SNARE proteins (VTI12 and NPSN12), as well as vacuolar sorting receptors (VPS35, VPS20, and VSR1), among others (Figure 8B

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

Transcripts associated with ABA responses were particularly enriched in nhx5 nhx6, including the upregulation of ABA receptors (RCAR 8, 10, and 12) and a downregulation of other ABA signaling components, such as ABI1, ABI2, HAB1, GPA1, and PLDa, among others (Figure 8C

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

Visit the PubMed Article

  • Gene expression

To investigate the function of NHX5 and NHX6, we generated knockout mutants using available T-DNA insertion lines. For each gene, two separate T-DNA lines were selected for single knockouts and designated as nhx5-1, nhx5-2, nhx6-1, and nhx6-2 (see Methods). Single knockouts were genotyped and backcrossed two times before their subsequent use in crosses to generate the two independent double knockout lines nhx5-1 nhx6-1 and nhx5-2 nhx6-2 ... Furthermore, the expression of NHX1, NHX2, NHX3, and NHX4, as quantified by qPCR, did not change significantly in either single or double nhx5 nhx6 knockouts

Bassil E, Ohto MA, Esumi T, Tajima H, Zhu Z, Cagnac O, Belmonte M, Peleg Z, Yamaguchi T, Blumwald E - The Arabidopsis intracellular Na+/H+ antiporters NHX5 and NHX6 are endosome associated and necessary for plant growth and development

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  • Gene expression

In contrast, in the presence of DEX, the expression levels of ... IRX8/GALACTURONOSYLTRANSFERASE12 (GAUT12 ... were unchanged in the VND7-VP16-GR plants

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Most of the 300 downstream genes of VND7 are transiently induced during in vitro TE transdifferentiation of Arabidopsis suspension cells ... Downstream genes, including putative direct targets of VND7, are apparently enriched in sets 3 and 8, which showed upregulated expression just when the xylem vessel elements were actively forming, and included VND7 itself

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In order to validate our microarray screen for direct targets of VND7, we performed quantitative RT-PCR (qRT-PCR) for several candidate genes (Figure 2). The mRNA levels of ... XCP1 ... significantly rose in the VND7-VP16-GR plants in response to DEX treatment in the presence of CHX ... 7.65 ... fold

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In order to validate our microarray screen for direct targets of VND7, we performed quantitative RT-PCR (qRT-PCR) for several candidate genes (Figure 2). The mRNA levels of MYB46 ... significantly rose in the VND7-VP16-GR plants in response to DEX treatment in the presence of CHX (11.33 ... fold

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants ... we checked the expression pattern of XCP1 after the induction of VND7. qRT-PCR revealed that XCP1 expression was elevated, starting 1 hour after treatment with DEX, and continued to increase during culture

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

We subjected 10-day-old seedlings of VND7-VP16-GR plants to pre-treatment with cycloheximide (CHX), a protein synthesis inhibitor to prevent the production of secondary transcription factors that could then influence gene transcription, followed by treatment with or without DEX ... only three genes were selected as downregulated in the VND7-VP16-GR plants in response to DEX treatment ... At5g47340

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

We subjected 10-day-old seedlings of VND7-VP16-GR plants to pre-treatment with cycloheximide (CHX), a protein synthesis inhibitor to prevent the production of secondary transcription factors that could then influence gene transcription, followed by treatment with or without DEX ... only three genes were selected as downregulated in the VND7-VP16-GR plants in response to DEX treatment ... At5g02650

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In the VND7-VP16-GR plants ... IRX1 ... significantly upregulated by DEX treatment ... qRT-PCR analysis showed that the levels of IRX1/CesA8 ... in VND7-VP16-GR plants rose more than threefold in response to DEX treatment, even in the presence of CHX

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as ... cellulose synthase subunits ... CesA8/IRX1

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

contrast, in the presence of DEX, the expression levels of ... IRX10 were unchanged in the VND7-VP16-GR plants

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as ... cellulose synthase subunits ... CesA4/IRX5

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as ... xylem cysteine proteases ... XCP1

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

The upregulation of ... LBD15/ASL11 ... was also detected in the VND7-VP16-GR plants after DEX treatment

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In the VND7-VP16-GR plants ... IRX ... 5 ... significantly upregulated by DEX treatment ... qRT-PCR analysis showed that the levels of ... IRX5/CesA4 mRNAs in VND7-VP16-GR plants rose more than threefold in response to DEX treatment, even in the presence of CHX

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In contrast, in the presence of DEX, the expression levels of IRX3/CesA7 ... were unchanged in the VND7-VP16-GR plants

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In the VND7-VP16-GR plants ... IRX ... 12 ... significantly upregulated by DEX treatment

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as ... xylem cysteine proteases ... XCP2

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In order to validate our microarray screen for direct targets of VND7, we performed quantitative RT-PCR (qRT-PCR) for several candidate genes (Figure 2). The mRNA levels of ... LBD30/ASL19/JLO ... significantly rose in the VND7-VP16-GR plants in response to DEX treatment in the presence of CHX ... 7.26-fold

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as transcriptional factors ... MYB46

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

We subjected 10-day-old seedlings of VND7-VP16-GR plants to pre-treatment with cycloheximide (CHX), a protein synthesis inhibitor to prevent the production of secondary transcription factors that could then influence gene transcription, followed by treatment with or without DEX ... only three genes were selected as downregulated in the VND7-VP16-GR plants in response to DEX treatment (At2g14520

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

The expression levels of MYB46 ... were increased in the VND7-VP16-GR seedling after DEX treatment

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

The expression levels of ... MYB103 were increased in the VND7-VP16-GR seedling after DEX treatment

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

Chimeric reporter genes encoding YFP fused to the SV40 nuclear localization signal (NLS), or ß-glucuronidase (GUS), under the control of the XCP1 promoter (Figure 3b) showed strong expression in differentiating xylem vessel cells in both roots and leaves

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as ... laccase ... LAC4/IRX12

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

In the VND7-VP16-GR plants ... IRX ... 13 ... significantly upregulated by DEX treatment

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as transcriptional factors ... LBD30/ASL19/JLO

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

in the VND7-VP16-GR plants in response to DEX treatment ... Downstream genes, including putative direct targets of VND7 ... encode well-known factors of xylem vessel differentiation, such as ... a serine protease AtSBT1.1 catalyzing the maturation of a phytosulfokine peptide hormone

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

The upregulation of ... LBD30/ASL19/JLO ... was also detected in the VND7-VP16-GR plants after DEX treatment

Yamaguchi M, Mitsuda N, Ohtani M, Ohme-Takagi M, Kato K, Demura T - VASCULAR-RELATED NAC-DOMAIN7 directly regulates the expression of a broad range of genes for xylem vessel formation

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  • Gene expression

OsPHO1;2 gene under the control of the Arabidopsis PHO1 promoter ... Quantitative RT-PCR analysis revealed that the expression of ... several mir399 primary transcripts, were underexpressed in the shoots of P5 relative to the WT

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The reduction or absence of induction of genes typically associated with Pi deficiency in the shoots of B1 and B3 lines has also been confirmed by quantitative RT-PCR for ... the Pi transporter ... AtPht1;9 ... These results indicated that despite being Pi deficient, the shoots of the B1 and B3 lines show a very limited response at the gene expression level to this deficiency, compared with Pi-deficient WT plants

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

OsPHO1;2 gene under the control of the Arabidopsis PHO1 promoter ... Quantitative RT-PCR analysis revealed that the expression of At4 ... underexpressed in the shoots of P5 relative to the WT

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The lack of extensive changes in the gene expression profile in Pi-deficient shoots of B1 and B3 plants grown in external media with high (1000 µm) Pi was re-examined in plants grown in media with low (5 µm) external Pi. Clustal analysis revealed that the majority of genes induced in Pi-deficient WT shoot and roots were also induced in pho1-2, B1 and B3 lines grown in low external Pi medium, although the level of the induction in shoots of both B1 and B3 were often reduced compared with Pi-deficient WT and pho1-2 (Figure 5d,e; Tables S3 and S4). For example, whereas At4 (At5g03545 ... induced approximately 20-fold in shoots of WT-Pi plants, the same genes were only induced between three- and sixfold in shoots of B1 and B3 plants grown on low Pi

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

OsPHO1;2 gene under the control of the Arabidopsis PHO1 promoter ... Quantitative RT-PCR analysis revealed that the expression of ... AtIPS1 ... underexpressed in the shoots of P5 relative to the WT

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The lack of extensive changes in the gene expression profile in Pi-deficient shoots of B1 and B3 plants grown in external media with high (1000 µm) Pi was re-examined in plants grown in media with low (5 µm) external Pi. Clustal analysis revealed that the majority of genes induced in Pi-deficient WT shoot and roots were also induced in pho1-2, B1 and B3 lines grown in low external Pi medium, although the level of the induction in shoots of both B1 and B3 were often reduced compared with Pi-deficient WT and pho1-2 (Figure 5d,e; Tables S3 and S4). For example, whereas ... SPX1 (At5g20150) were induced approximately 20-fold in shoots of WT-Pi plants, the same genes were only induced between three- and sixfold in shoots of B1 and B3 plants grown on low Pi

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

OsPHO1;2 gene under the control of the Arabidopsis PHO1 promoter ... Quantitative RT-PCR analysis revealed that the expression of ... AtPht1;9 ... underexpressed in the shoots of P5 relative to the WT

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The reduction or absence of induction of genes typically associated with Pi deficiency in the shoots of B1 and B3 lines has also been confirmed by quantitative RT-PCR for ... and primary transcripts encoding mir399 microRNA ... These results indicated that despite being Pi deficient, the shoots of the B1 and B3 lines show a very limited response at the gene expression level to this deficiency, compared with Pi-deficient WT plants

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The reduction or absence of induction of genes typically associated with Pi deficiency in the shoots of B1 and B3 lines has also been confirmed by quantitative RT-PCR for ... IPS1 ... These results indicated that despite being Pi deficient, the shoots of the B1 and B3 lines show a very limited response at the gene expression level to this deficiency, compared with Pi-deficient WT plants

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The reduction or absence of induction of genes typically associated with Pi deficiency in the shoots of B1 and B3 lines has also been confirmed by quantitative RT-PCR for ... the Pi transporter AtPht1;8 ... These results indicated that despite being Pi deficient, the shoots of the B1 and B3 lines show a very limited response at the gene expression level to this deficiency, compared with Pi-deficient WT plants

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The reduction or absence of induction of genes typically associated with Pi deficiency in the shoots of B1 and B3 lines has also been confirmed by quantitative RT-PCR for At4 ... These results indicated that despite being Pi deficient, the shoots of the B1 and B3 lines show a very limited response at the gene expression level to this deficiency, compared with Pi-deficient WT plants

Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, Poirier Y. - Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis

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  • Gene expression

The expression pattern of atTIC20-IV was different, and somewhat complementary to that of the other Group 1 gene, with low levels in rosette leaves and relatively high levels in non-photosynthetic tissues

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

The two Group 2 genes (atTIC20-II and atTIC20-V) were expressed at relatively high levels throughout development, and shared similar patterns of expression (Figure 3); the numbers of ESTs detected were 92 and 95, respectively

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To corroborate the aforementioned conclusions, publicly available microarray data were analysed using the Genevestigator tool (Zimmermann et al., 2004). This revealed that three of the four Arabidopsis Tic20 genes are expressed throughout the plant’s life-cycle

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To further characterize the chloroplast developmental defect in the tic20-I mutants, levels of several chloroplast proteins were assessed by immunoblotting ... Tic40 ... somewhat depleted in tic20-I mutant plants, the effect is not strong, and so it is possible that compensatory mechanisms (e.g. reduced turnover) are activated that help to maintain their levels and so compensate for the loss of atTic20-I, or that one of the other Tic20 isoforms (e.g. atTic20-IV) plays a more prominent role

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To corroborate the aforementioned conclusions, publicly available microarray data were analysed using the Genevestigator tool (Zimmermann et al., 2004). This revealed that three of the four Arabidopsis Tic20 genes are expressed throughout the plant’s life-cycle

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-II (At2g47840 ... the subcellular localization of the Arabidopsis Tic20 homologues was assessed by analysing yellow fluorescent protein (YFP) fusion proteins ... the yellow-green fluorescence of YFP was observed in a ring-like pattern around the periphery of each chloroplast. This pattern was strongly reminiscent of the distributions seen for atTic110:YFP and atTic40:YFP fusion proteins in a previous study (Bédard et al., 2007), indicating that the Arabidopsis Tic20 homologues are all targeted to the chloroplast envelope

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-V (At5g55710 ... the subcellular localization of the Arabidopsis Tic20 homologues was assessed by analysing yellow fluorescent protein (YFP) fusion proteins ... the yellow-green fluorescence of YFP was observed in a ring-like pattern around the periphery of each chloroplast. This pattern was strongly reminiscent of the distributions seen for atTic110:YFP and atTic40:YFP fusion proteins in a previous study (Bédard et al., 2007), indicating that the Arabidopsis Tic20 homologues are all targeted to the chloroplast envelope

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-V (At5g55710 ... Considering that most outer envelope proteins do not possess a transit peptide (as the four Arabidopsis Tic20 homologues do) (Hofmann and Theg, 2005), and the aforementioned topological and phylogenetic similarities between the Arabidopsis proteins and psTic20, these results strongly support the hypothesis that Arabidopsis Tic20 homologues are localized in the chloroplast inner envelope membrane

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-V (At5g55710 ... Considering that most outer envelope proteins do not possess a transit peptide (as the four Arabidopsis Tic20 homologues do) (Hofmann and Theg, 2005), and the aforementioned topological and phylogenetic similarities between the Arabidopsis proteins and psTic20, these results strongly support the hypothesis that Arabidopsis Tic20 homologues are localized in the chloroplast inner envelope membrane

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To further characterize the chloroplast developmental defect in the tic20-I mutants, levels of several chloroplast proteins were assessed by immunoblotting ... Dramatic effects were observed in relation to components of the photosynthetic apparatus ... FNR ... with amounts reduced to less than 10% of that seen in the wild type

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-IV (At4g03320 ... the subcellular localization of the Arabidopsis Tic20 homologues was assessed by analysing yellow fluorescent protein (YFP) fusion proteins ... the yellow-green fluorescence of YFP was observed in a ring-like pattern around the periphery of each chloroplast. This pattern was strongly reminiscent of the distributions seen for atTic110:YFP and atTic40:YFP fusion proteins in a previous study (Bédard et al., 2007), indicating that the Arabidopsis Tic20 homologues are all targeted to the chloroplast envelope

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-I (At1g04940 ... Considering that most outer envelope proteins do not possess a transit peptide (as the four Arabidopsis Tic20 homologues do) (Hofmann and Theg, 2005), and the aforementioned topological and phylogenetic similarities between the Arabidopsis proteins and psTic20, these results strongly support the hypothesis that Arabidopsis Tic20 homologues are localized in the chloroplast inner envelope membrane

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To further characterize the chloroplast developmental defect in the tic20-I mutants, levels of several chloroplast proteins were assessed by immunoblotting ... Surprisingly, levels of most of the translocon components investigated were not dramatically affected by the tic20 mutations

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-IV (At4g03320 ... Considering that most outer envelope proteins do not possess a transit peptide (as the four Arabidopsis Tic20 homologues do) (Hofmann and Theg, 2005), and the aforementioned topological and phylogenetic similarities between the Arabidopsis proteins and psTic20, these results strongly support the hypothesis that Arabidopsis Tic20 homologues are localized in the chloroplast inner envelope membrane

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-II (At2g47840 ... Considering that most outer envelope proteins do not possess a transit peptide (as the four Arabidopsis Tic20 homologues do) (Hofmann and Theg, 2005), and the aforementioned topological and phylogenetic similarities between the Arabidopsis proteins and psTic20, these results strongly support the hypothesis that Arabidopsis Tic20 homologues are localized in the chloroplast inner envelope membrane

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To further characterize the chloroplast developmental defect in the tic20-I mutants, levels of several chloroplast proteins were assessed by immunoblotting ... Dramatic effects were observed in relation to components of the photosynthetic apparatus ... OE33 ... with amounts reduced to less than 10% of that seen in the wild type

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To further characterize the chloroplast developmental defect in the tic20-I mutants, levels of several chloroplast proteins were assessed by immunoblotting ... Tic110 ... somewhat depleted in tic20-I mutant plants, the effect is not strong, and so it is possible that compensatory mechanisms (e.g. reduced turnover) are activated that help to maintain their levels and so compensate for the loss of atTic20-I, or that one of the other Tic20 isoforms (e.g. atTic20-IV) plays a more prominent role

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To gain insight into the functional relationships between the Arabidopsis Tic20 homologues, their developmental and tissue-specific gene expression patterns were studied by quantitative real-time RT-PCR (Figure 3). The results indicated that atTIC20-I expression is highest in mature photosynthetic tissues (e.g. 14 dL and Rosettes in Figure 3), and relatively weak in non-photosynthetic tissues

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To further characterize the chloroplast developmental defect in the tic20-I mutants, levels of several chloroplast proteins were assessed by immunoblotting ... Dramatic effects were observed in relation to components of the photosynthetic apparatus (LHCP ... with amounts reduced to less than 10% of that seen in the wild type

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To further characterize the chloroplast developmental defect in the tic20-I mutants, levels of several chloroplast proteins were assessed by immunoblotting ... In addition, the tetrapyrrole biosynthetic enzyme, CPO, was also strongly depleted in the tic20 mutants

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

To corroborate the aforementioned conclusions, publicly available microarray data were analysed using the Genevestigator tool (Zimmermann et al., 2004). This revealed that three of the four Arabidopsis Tic20 genes are expressed throughout the plant’s life-cycle

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

The two Group 2 genes (atTIC20-II and atTIC20-V) were expressed at relatively high levels throughout development, and shared similar patterns of expression (Figure 3); the numbers of ESTs detected were 92 and 95, respectively

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

atTic20-I (At1g04940 ... the subcellular localization of the Arabidopsis Tic20 homologues was assessed by analysing yellow fluorescent protein (YFP) fusion proteins ... the yellow-green fluorescence of YFP was observed in a ring-like pattern around the periphery of each chloroplast. This pattern was strongly reminiscent of the distributions seen for atTic110:YFP and atTic40:YFP fusion proteins in a previous study (Bédard et al., 2007), indicating that the Arabidopsis Tic20 homologues are all targeted to the chloroplast envelope

Kasmati AR, Töpel M, Patel R, Murtaza G, Jarvis P - Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts

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  • Gene expression

Spatial patterns of RID2 expression were examined by using RID2p::GUS as a reporter gene. In seedlings, a high level of GUS expression was observed ... in developing trichomes

Ohbayashi I, Konishi M, Ebine K, Sugiyama M - Genetic identification of Arabidopsis RID2 as an essential factor involved in pre-rRNA processing

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  • Gene expression

using plants carrying RID2p::RID2:GFP ... Observation of fluorescence signals from RID2:GFP revealed that the RID2 protein is localized in nuclei, and that it accumulates mainly in nucleoli (Figure 10); this is consistent with the presence of an NLS

Ohbayashi I, Konishi M, Ebine K, Sugiyama M - Genetic identification of Arabidopsis RID2 as an essential factor involved in pre-rRNA processing

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  • Gene expression

Spatial patterns of RID2 expression were examined by using RID2p::GUS as a reporter gene. In seedlings, a high level of GUS expression was observed ... in stipules

Ohbayashi I, Konishi M, Ebine K, Sugiyama M - Genetic identification of Arabidopsis RID2 as an essential factor involved in pre-rRNA processing

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... amiRNA-AtHsp70-14/15 line 4 ... WRKY40 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... amiRNA-AtHsp70-14/15 line 4 ... WRKY38 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... hsp70-15 knockout plants ... genes involved in lipid binding ... LTP2 ... were also found to be up-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... hsp70-15 knockout plants ... genes involved in lipid binding ... LTP3 ... were also found to be up-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... amiRNA-AtHsp70-14/15 line 4 ... one DnaJ protein transcript were found to be significantly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... hsp70-15 knockout plants ... WRKY38 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-2 (At5g02490) ... localize to the ... nucleus

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

To analyse the subcellular localization of ... AtHsp70-15, GFP was fused to the C-terminal end of the full-length coding regions ... cloned under the control of the constitutive CaMV 35S promoter, and transiently expressed in Nicotiana benthamiana. As shown in Figure 2 ... genes target GFP to the cytosol and nucleus

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... hsp70-15 knockout plants ... WRKY40 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

To analyse the subcellular localization of AtHsp70-14 ... GFP was fused to the C-terminal end of the full-length coding regions ... cloned under the control of the constitutive CaMV 35S promoter, and transiently expressed in Nicotiana benthamiana. As shown in Figure 2 ... genes target GFP to the cytosol and nucleus

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-1 (At5g02500 ... localize to the ... nucleus

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... hsp70-15 knockout plants ... one DnaJ protein transcript were found to be significantly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... hsp70-15 knockout plants ... WRKY58 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-15 ... target GFP to the ... nucleus

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... amiRNA-AtHsp70-14/15 line 4 ... WRKY22 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-14 ... target GFP to the ... nucleus

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-14 (At1g79930) and AtHsp70-15 (At1g79920 ... Due to their high sequence similarities, they are represented by only one oligonucleotide (array identifier 262054_s_at) on the Affymetrix ATH1 microarray chip. In silico expression analysis using publicly available microarray data revealed that either or both of the genes are expressed ubiquitously in nearly all organs and at all developmental stages, with highest expression levels in callus and cell suspension cultures. In addition, the transcript signal is up-regulated after heat shock

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-2 (At5g02490 ... To analyse the subcellular localization ... GFP was fused to their full-length coding sequences. The construct was placed under the control of the constitutive CaMV 35S promoter as described in Experimental Procedures, and was stably transformed into Nicotiana tabacum plants using Agrobacterium-mediated gene transfer. Of the transformants ... 12 individuals with detectable GFP fluorescence (presumably in the cytosol and the nucleus) were obtained, and three of them were analysed by confocal laser scanning microscopy. As evident from the confocal laser scanning microscopy images shown in Figure 1(a,b), both isoforms localize to the cytosol and the nucleus. To exclude the possibility of proteolytic breakdown of the fusion proteins, immunoblot analysis using anti-GFP-specific antibodies was performed. As shown in Figure 1(c), GFP-specific antibodies recognize a single protein band of approximately 110 kDa in protein extracts from plants expressing ... GFP–AtHsp70-2, corresponding to the size of the fusion protein

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-14 (At1g79930) and AtHsp70-15 (At1g79920) ... Due to their high sequence similarities, they are represented by only one oligonucleotide (array identifier 262054_s_at) on the Affymetrix ATH1 microarray chip. In silico expression analysis using publicly available microarray data revealed that either or both of the genes are expressed ubiquitously in nearly all organs and at all developmental stages, with highest expression levels in callus and cell suspension cultures. In addition, the transcript signal is up-regulated after heat shock

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

AtHsp70-1 (At5g02500) ... To analyse the subcellular localization ... GFP was fused to their full-length coding sequences. The construct was placed under the control of the constitutive CaMV 35S promoter as described in Experimental Procedures, and was stably transformed into Nicotiana tabacum plants using Agrobacterium-mediated gene transfer. Of the transformants, 20 ... individuals with detectable GFP fluorescence (presumably in the cytosol and the nucleus) were obtained, and three of them were analysed by confocal laser scanning microscopy. As evident from the confocal laser scanning microscopy images shown in Figure 1(a,b), both isoforms localize to the cytosol and the nucleus. To exclude the possibility of proteolytic breakdown of the fusion proteins, immunoblot analysis using anti-GFP-specific antibodies was performed. As shown in Figure 1(c), GFP-specific antibodies recognize a single protein band of approximately 110 kDa in protein extracts from plants expressing GFP–AtHsp70-1 ... corresponding to the size of the fusion protein

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... hsp70-15 knockout plants ... WRKY22 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... amiRNA-AtHsp70-14/15 line 4 ... genes involved in lipid binding ... LTP2 ... were also found to be up-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... amiRNA-AtHsp70-14/15 line 4 ... WRKY58 ... strongly down-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Microarray analysis was performed using the Agilent Arabidopsis IV microarray chip ... amiRNA-AtHsp70-14/15 line 4 ... genes involved in lipid binding ... LTP3 ... were also found to be up-regulated

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U - AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV

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  • Gene expression

Wild-type (Col-0) Arabidopsis leaves develop an ovate form with a limited number of serrations towards the proximal base of the leaf (Figure 2a). At a very early stage of leaf development, the region of future perimeter deformation is defined by CUC2 expression (as visualized by CUC2>>GUS reporter gene activity (Figure S1a; Nikovics et al., 2006). CUC2 expression then gradually becomes restricted to regions on the leaf perimeter adjacent to the emerging lobe

Malinowski R, Kasprzewska A, Fleming AJ - Targeted manipulation of leaf form via local growth repression

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  • Gene expression

promoter-driven GUS activity patterns ... BPC6 promoter ... active in the center of young rosettes and in young rosette leaves

Monfared MM, Simon MK, Meister RJ, Roig-Villanova I, Kooiker M, Colombo L, Fletcher JC, Gasser CS - Overlapping and antagonistic activities of BASIC PENTACYSTEINE genes affect a range of developmental processes in Arabidopsis

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  • Gene expression

promoter-driven GUS activity patterns ... BPC4 ... promoter ... active in the center of young rosettes and in young rosette leaves

Monfared MM, Simon MK, Meister RJ, Roig-Villanova I, Kooiker M, Colombo L, Fletcher JC, Gasser CS - Overlapping and antagonistic activities of BASIC PENTACYSTEINE genes affect a range of developmental processes in Arabidopsis

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  • Gene expression

promoter-driven GUS activity patterns ... BPC2 ... promoter ... active in the center of young rosettes and in young rosette leaves

Monfared MM, Simon MK, Meister RJ, Roig-Villanova I, Kooiker M, Colombo L, Fletcher JC, Gasser CS - Overlapping and antagonistic activities of BASIC PENTACYSTEINE genes affect a range of developmental processes in Arabidopsis

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  • Gene expression

BPC7 promoter activity was limited to the leaf vasculature

Monfared MM, Simon MK, Meister RJ, Roig-Villanova I, Kooiker M, Colombo L, Fletcher JC, Gasser CS - Overlapping and antagonistic activities of BASIC PENTACYSTEINE genes affect a range of developmental processes in Arabidopsis

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  • Gene expression

promoter-driven GUS activity patterns ... BPC1 ... promoter activity was limited to the leaf vasculature

Monfared MM, Simon MK, Meister RJ, Roig-Villanova I, Kooiker M, Colombo L, Fletcher JC, Gasser CS - Overlapping and antagonistic activities of BASIC PENTACYSTEINE genes affect a range of developmental processes in Arabidopsis

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  • Gene expression

promoter-driven GUS activity patterns ... BPC3 ... promoter ... active in the center of young rosettes and in young rosette leaves

Monfared MM, Simon MK, Meister RJ, Roig-Villanova I, Kooiker M, Colombo L, Fletcher JC, Gasser CS - Overlapping and antagonistic activities of BASIC PENTACYSTEINE genes affect a range of developmental processes in Arabidopsis

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  • Gene expression

A LSH3–GFP fusion protein localized to the nucleus when it was expressed under the control of the 35S promoter

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

LSH4 transcripts were not detected in cup-shaped embryos segregating from cuc1 cuc2/+ parents (Figure 1e), but were detected in siblings with normal appearance, as in wild-type

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

In heart-stage embryos, the LSH3 promoter was active in the cotyledon boundary region of the shoot apex

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

Four days after germination, LSH4 was weakly expressed in the basal cells of the leaf primordia (Figure 1f). Essentially the same expression pattern was observed in a histochemical analysis of transgenic plants expressing the β-glucuronidase reporter gene (GUS) under the control of the 1.5 kb LSH4 promoter (inset to Figure 1f), suggesting that this region contains cis-regulatory elements for the LSH4 expression

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

At3g23290 ... is expressed in the shoot apex of embryos

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

we screened for genes that were up-regulated in plants expressing CUC1 under the control of the CaMV 35S promoter (35S:CUC1; Takada et al., 2001) by transcriptome analysis. We found that the expression levels of 15 genes were increased more than eight-fold in 35S:CUC1 compared with wild-type (Table S1). Of these, we focused on At3g23290 ... Up-regulation of this gene in 35S:CUC1 was confirmed by RT-PCR analysis

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

we generated transgenic plants carrying a translational fusion of the LSH4 genomic fragment and green fluorescent protein (LSH4g:GFP). The fusion protein accumulated in cells between two cotyledon primordia in the embryos, and no GFP signal was found in the cells in the central region

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

In 4-day-old seedlings, expression of LSH3 was detected in cells between the SAM and the cotyledons

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

After germination, the LSH4–GFP fusion protein accumulated in boundary cells between the two cotyledons (Figure 1m) and in cells between the shoot meristem and the leaf primordia (Figure 1n), but not in the SAM

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

RPS5Ap:5mCUC1-GR ... To investigate whether CUC1 can directly activate the transcription of LSH4, we analyzed its expression in homozygous plants treated with the protein synthesis inhibitor cycloheximide (CHX) together with DEX. Application of CHX efficiently blocks protein synthesis from transcripts of CUC1 primary response genes, thereby inhibiting induction of genes that are indirectly activated by primary response gene products (Sablowski and Meyerowitz, 1998). The effect of CHX was confirmed by expression of IAA5, a CHX-induced gene (data not shown; Abel et al., 1995). In the presence of CHX, expression of LSH4 was effectively induced after 3 h of DEX treatment ... These data show that CUC1 activates transcription of LSH4 ... under conditions in which protein synthesis is inhibited, which in turn indicates that LSH4 ... direct transcriptional targets of CUC1

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

In cuc1 cuc2 double mutants, the GUS activity at the cotyledon boundary was dramatically reduced, but that in the root tip was not affected (Figure 2c). In situ hybridization showed that LSH3 was weakly expressed in the boundary cells between the SAM and the cotyledons in bending-cotyledon stage embryos

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

LSH4 was initially expressed at the shoot apex in the early-heart embryonic stage (Figure 1a). Within the apex of the late-heart stage embryo, the signal was detected in the peripheral region but not in the central region (Figure 1b,c), indicating that LSH4 expression partially overlaps with expression of CUC1 at this stage (Aida et al., 1999; Takada et al., 2001). At the bent-cotyledon stage, LSH4 is expressed in boundary cells located between the SAM and the cotyledon primordia

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

the LSH4–GFP ... fusion protein weakly accumulated in early leaf primordia, but not in those at later stages (Video Clip S2). It also accumulated in cells at the boundary of the meristem and stem

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

the LSH4–GFP ... fusion protein always localized to the nucleus

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

RPS5Ap:5mCUC1-GR ... To investigate whether CUC1 can directly activate the transcription of LSH4, we analyzed its expression in homozygous plants treated with the protein synthesis inhibitor cycloheximide (CHX) together with DEX. Application of CHX efficiently blocks protein synthesis from transcripts of CUC1 primary response genes, thereby inhibiting induction of genes that are indirectly activated by primary response gene products (Sablowski and Meyerowitz, 1998). The effect of CHX was confirmed by expression of IAA5, a CHX-induced gene (data not shown; Abel et al., 1995). In the presence of CHX ... LSH3 expression was induced ... These data show that CUC1 activates transcription of ... LSH3 under conditions in which protein synthesis is inhibited, which in turn indicates that ... LSH3 ... direct transcriptional targets of CUC1

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

First, we examined the LSH4 expression in RPS5Ap:5mCUC1-GR homozygous plants grown on agar medium for 3 days and then transplanted to medium containing 1 μm DEX. The level of LSH4 expression increased two- to three-fold after 24 h (Figure S2). When the plants were grown on medium without DEX, the LSH4 transcript levels did not increase. Control plants expressing yeast GAL4 under the control of the RPS5A promoter (Weijers et al., 2001; Aida et al., 2004) showed no induction of LSH4 expression after DEX treatment (Figure S2

Takeda S, Hanano K, Kariya A, Shimizu S, Zhao L, Matsui M, Tasaka M, Aida M - CUP-SHAPED COTYLEDON1 transcription factor activates the expression of LSH4 and LSH3, two members of the ALOG gene family, in shoot organ boundary cells

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  • Gene expression

transgenic plants expressing a GUS-SPA1 fusion protein under the control of the native SPA1 promoter (SPA1::GUS-SPA1 ... mutant backgrounds ... spa1 spa2 spa3 triple mutant ... In seedlings, GUS activity ... in cotyledons ... cotyledons

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 mutants ... background ... expression of GUS-SPA1 in the epidermis was detected in ... CER6::GUS-SPA1 ... lines

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

transgenic plants expressing a GUS-SPA1 fusion protein under the control of the native SPA1 promoter (SPA1::GUS-SPA1 ... mutant backgrounds ... spa1 spa2 spa3 triple mutant ... In seedlings ... GUS-SPA1 accumulated in the epidermis

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 mutants ... background ... ML1::GUS-SPA1 ... expression levels ... in leaf primordia

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

transgenic plants expressing a GUS-SPA1 fusion protein under the control of the native SPA1 promoter (SPA1::GUS-SPA1 ... mutant backgrounds ... spa1 spa3 spa4 mutant ... in adult plants ... GUS-SPA1 was ... expressed in the phloem

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... CAB3 promoter in dark-grown seedlings ... caused lower levels of GUS-SPA1 accumulation than did the SPA1 promoter

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 mutants ... background ... ML1::GUS-SPA1 ... expression levels ... in young developing leaves

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... KNAT1::GUS-SPA1 ... transgenic lines showed shoot meristem ... specific expression of GUS-SPA1

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 mutants ... background ... Exclusive expression of GUS-SPA1 in the epidermis was detected in ML1::GUS-SPA1

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... The RolC promoter conferred vascular-specific expression of GUS-SPA1 in ... dark ... grown seedlings

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

In developing leaves, SPA1 mRNA ... in inner tissues

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

transgenic plants expressing a GUS-SPA1 fusion protein under the control of the native SPA1 promoter (SPA1::GUS-SPA1 ... mutant backgrounds ... spa1 spa3 spa4 mutant ... in adult plants, GUS-SPA1 ... expression in the epidermis

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

In developing leaves, SPA1 mRNA ... in epidermal tissue

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 mutants ... background ... ML1::GUS-SPA1 ... expression levels ... in developed leaves

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

SPA1 transcript levels were particularly high in vascular tissue of dark-grown seedlings

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... ML1 promoters conferred GUS-SPA1 expression specifically in the ... epidermis

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

The spatial SPA1 transcript accumulation was very similar in the spa mutant backgrounds

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

transgenic plants expressing a GUS-SPA1 fusion protein under the control of the native SPA1 promoter (SPA1::GUS-SPA1 ... mutant backgrounds ... spa1 spa2 spa3 triple mutant ... In seedlings ... GUS-SPA1 accumulated ... in vascular bundles

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

transgenic plants expressing a GUS-SPA1 fusion protein under the control of the native SPA1 promoter (SPA1::GUS-SPA1 ... mutant backgrounds ... spa1 spa2 spa3 triple mutant ... In seedlings ... GUS-SPA1 accumulated in the ... mesophyll

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

transgenic plants expressing a GUS-SPA1 fusion protein under the control of the native SPA1 promoter (SPA1::GUS-SPA1 ... mutant backgrounds ... spa1 spa3 spa4 mutant ... in adult plants, GUS-SPA1 ... expression in vascular bundles

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... CAB3 ... promoters conferred GUS-SPA1 expression specifically in the mesophyll

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 mutants ... background ... ML1::GUS-SPA1 ... expression levels ... at the shoot apex

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... RolC promoter in ... light-grown seedlings ... caused lower levels of GUS-SPA1 accumulation than did the SPA1 promoter

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... RolC promoter in dark ... grown seedlings ... caused lower levels of GUS-SPA1 accumulation than did the SPA1 promoter

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 ... background ... In CAB3::GUS-SPA1 transgenic lines, GUS-SPA1 expression was restricted to mesophyll cells

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... Transgenic SUC2::GUS-SPA1 lines also accumulated GUS specifically in the vasculature of light-grown seedlings

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa2 spa3 mutant background ... The RolC promoter conferred vascular-specific expression of GUS-SPA1 in ... light-grown seedlings

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

spa1 spa3 spa4 mutants ... background ... KNAT1::GUS-SPA1 ... shoot meristem ... expression of GUS-SPA1

Ranjan A, Fiene G, Fackendahl P, Hoecker U - The Arabidopsis repressor of light signaling SPA1 acts in the phloem to regulate seedling de-etiolation, leaf expansion and flowering time

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... HCF ... 173 ... downregulated ... at 27 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Genes induced at 21 DAS ... include ... dehydration-responsive genes such as ... ERD14

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... A surprising group of genes identified by this analysis is downregulated for most of the time course followed by a significant increase in expression at 35 or 37 DAS (clusters U8_1 and U9). This group is highly enriched for genes involved in the cytoskeleton (see Supplemental Figure 3B online), with members of the α-tubulin family (TUA2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS (Figure 1C). However, leaf weight increased significantly between time points up to 25 DAS ... A surprising group of genes identified by this analysis is downregulated for most of the time course followed by a significant increase in expression at 35 or 37 DAS ... AURORA2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... genes upregulated at 27 DAS due to increased expression ... autophagy gene ATG7

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis thaliana plant at each time point (Figure 1A), and samples were not pooled for any of the analyses. Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Key genes involved in chlorophyll degradation ... SGR2 ... show enhanced expression during senescence ... increase in expression during early time points, leveling out between 25 and 29 DAS, followed by a sudden increase in expression after 29 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... genes upregulated at 27 DAS due to increased expression ... MC6

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Genes induced at 21 DAS ... include ... dehydration-responsive genes such as ... ABF2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... At 27 DAS, there is an interesting overrepresentation of genes involved in carotene metabolism ... CCD7

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... ABI1 ... upregulated at 25 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... By the later time points in this experiment, after 31 DAS, the senescing leaf becomes more and more heterogeneous, with some cells within the leaf being at a more advanced stage of senescence than others and more variability between biological replicates. This means that there is less clarity in the functions of different groupings of genes that are differentially expressed at each time point after 31 DAS. GO term enrichment analysis of the 31, 33, and 35 DAS groups combined ... ACC OXIDASE2 (ACO2) being upregulated late in senescence

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... HCF ... 152 ... downregulated ... at 27 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... at 23 DAS ... LUT ... 5 ... show a correlated drop in expression

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Genes induced at 21 DAS ... include ... MPK7

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... gene clusters that show expression that declines at ... 31 ... includes the gene-encoding ... GLK1

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Key genes involved in chlorophyll degradation, SGR1 ... show enhanced expression during senescence ... increase in expression during early time points, leveling out between 25 and 29 DAS, followed by a sudden increase in expression after 29 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... The ORE9/MAX2 gene also shows senescence-enhanced expression and is upregulated at 21 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Many genes encoding TFs are first upregulated at 23 DAS, including ... ATAF2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... at 23 DAS ... ARR4 ... drops

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... At ... 29 DAS ... upregulated genes, LACS6, encoding a long-chain acyl-CoA synthetase

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Many genes encoding TFs are first upregulated at 23 DAS, including ... ATAF1

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Genes induced at 21 DAS ... include ... dehydration-responsive genes such as ERD1

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Genes induced at 21 DAS ... include ... LSD1, a zinc finger that monitors superoxide levels and regulates cell death

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... gene clusters that show expression that declines at ... 31 ... includes the gene-encoding TF GOLDEN2-LIKE (GLK2)

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... expression increases at 23 DAS ... MYC2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... at 23 DAS ... LUT1 ... show a correlated drop in expression

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... AFP1 ... upregulated at 25 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... At the next time point (29 DAS ... upregulated genes ... including the well-characterized senescence-enhanced Cys protease SAG12

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... By the later time points in this experiment, after 31 DAS, the senescing leaf becomes more and more heterogeneous, with some cells within the leaf being at a more advanced stage of senescence than others and more variability between biological replicates. This means that there is less clarity in the functions of different groupings of genes that are differentially expressed at each time point after 31 DAS. GO term enrichment analysis of the 31, 33, and 35 DAS groups combined ... ethylene ETR1 ... being upregulated late in senescence

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... at 23 DAS ... LUT ... 2 ... show a correlated drop in expression

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... A surprising group of genes identified by this analysis is downregulated for most of the time course followed by a significant increase in expression at 35 or 37 DAS (clusters U8_1 and U9). This group is highly enriched for genes involved in the cytoskeleton ... with members of the ... actin genes ... ACT3

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... gene clusters that show expression that declines at ... 31 ... includes ... PSII chlorophyll binding proteins LHCB ... 4.2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... senescence-enhanced gene SAG12 ... SAG12 expression first becomes significantly enhanced around 31 DAS. This method can also be used to show when the gene expression gradient is maximal, i.e., the time of most rapid change. For example, the maximum change of the expression for SAG12 occurs between 33 and 35

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... at 23 DAS ... ARR ... 6 ... drops

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Key genes involved in chlorophyll degradation ... PaO ... show enhanced expression during senescence ... increase in expression during early time points, leveling out between 25 and 29 DAS, followed by a sudden increase in expression after 29 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Genes induced at 21 DAS ... include ... DREB2A

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... A surprising group of genes identified by this analysis is downregulated for most of the time course followed by a significant increase in expression at 35 or 37 DAS (clusters U8_1 and U9). This group is highly enriched for genes involved in the cytoskeleton (see Supplemental Figure 3B online), with members of the α-tubulin family (TUA ... 5

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... expression increases at 23 DAS ... JAZ8

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... ATG8B ... show ... rapidly increased expression between 29 and 31 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... ATG8H ... show ... rapidly increased expression between 29 and 31 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Genes induced at 21 DAS ... include ... dehydration-responsive genes such as ... RAB18

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Key genes involved in chlorophyll degradation ... NYC1 ... show enhanced expression during senescence ... increase in expression during early time points, leveling out between 25 and 29 DAS, followed by a sudden increase in expression after 29 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... some JA biosynthesis and signaling genes are only expressed at the early time point (e.g., OPR3)

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... ATG7, being upregulated at 29 DAS ... show ... rapidly increased expression between 29 and 31 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Many genes encoding TFs are first upregulated at 23 DAS, including ... Nuclear Factor Y subunit NF-YA4

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS (Figure 1C). However, leaf weight increased significantly between time points up to 25 DAS ... A surprising group of genes identified by this analysis is downregulated for most of the time course followed by a significant increase in expression at 35 or 37 DAS (clusters U8_1 and U9). This group is highly enriched for genes involved in the cytoskeleton ... with members of ... actin genes ... ACT11

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... at 23 DAS ... ARR ... 7 ... drops

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... expression increases at 23 DAS ... AOC4

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... HCF ... 208 ... downregulated ... at 27 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... HCF101 ... downregulated ... at 27 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... gene clusters that show expression that declines at ... 31 ... includes ... PSII chlorophyll binding proteins LHCB ... 6

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Genes induced at 21 DAS ... include ... HSP70

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... At 27 DAS, there is an interesting overrepresentation of genes involved in carotene metabolism ... CCD8

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... expression increases at 23 DAS ... JAZ1

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... expression increases at 23 DAS ... JAZ6

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... A surprising group of genes identified by this analysis is downregulated for most of the time course followed by a significant increase in expression at 35 or 37 DAS ... AURORA1

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... upregulated genes ... ACX1 (acyl-CoA oxidase), encoding the enzyme that catalyzes the first step in fatty acid β-oxidation in the peroxisome

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Genes induced at 21 DAS ... include ... Arabidopsis HISTIDINE KINASE3 (AHK3)

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... gene clusters that show expression that declines at ... 31 ... includes ... PSII chlorophyll binding proteins LHCB 2.2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... ATG8A ... show ... rapidly increased expression between 29 and 31 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... Many genes encoding TFs are first upregulated at 23 DAS, including ... CUC2

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... HCF ... 109 ... downregulated ... at 27 DAS

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... expression increases at 23 DAS ... AOC1

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... A surprising group of genes identified by this analysis is downregulated for most of the time course followed by a significant increase in expression at 35 or 37 DAS (clusters U8_1 and U9). This group is highly enriched for genes involved in the cytoskeleton (see Supplemental Figure 3B online), with members of the α-tubulin family (TUA ... 4

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

Arabidopsis Col-0 plants were grown in controlled conditions until leaf 7 was ~50% of its final size (19 d after sowing [DAS]). This leaf was harvested at defined time points until 39 DAS when it was visibly senescent (~50% of leaf area being yellow, Figure 1B). Samples were taken in the morning (7 h into the light period) and afternoon (14 h into the light period) every other day, resulting in 22 time points in total. Sampling was carried out at these two time points each day to allow us to distinguish genes that are altered in a diurnal rhythm, as well as being differentially expressed over time; the times were selected based on likely maximum changes in expression. Plants started flowering from around 21 DAS. Leaf 7 started to show yellowing at the tip at around 31 DAS and was 25 to 50% yellow by 37 DAS. By the final sample time (39 DAS), the plants were fully flowering, and siliques were filling. Physiological parameters were measured in the morning samples only (i.e., 11 time points). Sampled leaves reached full expansion by 23 DAS ... genes upregulated at 27 DAS due to increased expression ... MC9

Breeze E, Harrison E, McHattie S, Hughes L, Hickman R, Hill C, Kiddle S, Kim YS, Penfold CA, Jenkins D, Zhang C, Morris K, Jenner C, Jackson S, Thomas B, Tabrett A, Legaie R, Moore JD, Wild DL, Ott S, Rand D, Beynon J, Denby K, Mead A, Buchanan-Wollaston V - High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation

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  • Gene expression

we selected three genes that were at least two-fold upregulated after 15 min of cytokinin treatment (GATA22, bHLH64 and HAT22 induced 2.0-, 2.9- and 2.4-fold, respectively) and one more gene that was strongly induced after 120 min of cytokinin treatment (HAT4, 13.1-fold) for further analysis ... The transcript level of all chosen genes was enhanced about two- to four-fold after 15 min or 120 min of cytokinin treatment (Fig. 1), confirming the results of the microarray analysis

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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  • Gene expression

we selected three genes that were at least two-fold upregulated after 15 min of cytokinin treatment (GATA22, bHLH64 and HAT22 induced 2.0-, 2.9- and 2.4-fold, respectively) and one more gene that was strongly induced after 120 min of cytokinin treatment (HAT4, 13.1-fold) for further analysis ... The transcript level of all chosen genes was enhanced about two- to four-fold after 15 min or 120 min of cytokinin treatment (Fig. 1), confirming the results of the microarray analysis

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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  • Gene expression

We screened different collections for T-DNA insertional mutants of these four genes. One insertional mutant was identified for the GATA22 and one for the HAT4 gene. These were named gata22-1 and hat4-1, respectively, and homozygous lines were constructed for both of them. No transcripts for the respective genes were detected in either of the mutant lines

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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  • Gene expression

we selected three genes that were at least two-fold upregulated after 15 min of cytokinin treatment (GATA22, bHLH64 and HAT22 induced 2.0-, 2.9- and 2.4-fold, respectively) and one more gene that was strongly induced after 120 min of cytokinin treatment (HAT4, 13.1-fold) for further analysis ... The transcript level of all chosen genes was enhanced about two- to four-fold after 15 min or 120 min of cytokinin treatment (Fig. 1), confirming the results of the microarray analysis

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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  • Gene expression

Consistent with this idea of hormonal antagonism converging on GATA22 expression, it was found that GATA22 expression is induced by cytokinin but downregulated by gibberellin

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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  • Gene expression

we selected three genes that were at least two-fold upregulated after 15 min of cytokinin treatment (GATA22, bHLH64 and HAT22 induced 2.0-, 2.9- and 2.4-fold, respectively) and one more gene that was strongly induced after 120 min of cytokinin treatment (HAT4, 13.1-fold) for further analysis ... The transcript level of all chosen genes was enhanced about two- to four-fold after 15 min or 120 min of cytokinin treatment (Fig. 1), confirming the results of the microarray analysis

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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  • Gene expression

Consistent with this idea of hormonal antagonism converging on GATA22 expression, it was found that GATA22 expression is induced by cytokinin but downregulated by gibberellin

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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  • Gene expression

We screened different collections for T-DNA insertional mutants of these four genes. One insertional mutant was identified for the GATA22 and one for the HAT4 gene. These were named gata22-1 and hat4-1, respectively, and homozygous lines were constructed for both of them. No transcripts for the respective genes were detected in either of the mutant lines

Köllmer I, Werner T, Schmülling T - Ectopic expression of different cytokinin-regulated transcription factor genes of Arabidopsis thaliana alters plant growth and development

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ARL ... found to be ER-localized

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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we could not detect an obvious alteration of ... ARL mRNA levels in the osr1-1 mutant

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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overexpression of OSR1 resulted in suppression of ... ARL transcription

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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OSR1 appeared to contain a motif that is conserved in ARGOS and ARL (Fig. 1b). To further determine the tissue-specific expression of OSR1, we generated transgenic Arabidopsis plants carrying an OSR1 promoter::β-glucuronidase (proOSR1-GUS) fusion gene and examined GUS activities in transgenic plants. In 7-d-old seedlings ... low GUS expression was detected in cotyledons

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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As the CycB1;1-GUS reporter marks the cells at the G2-M phase (Criqui et al., 2001), the enhanced GUS activities observed in young leaves and the root meristem region of 35S-OSR1 seedlings indicated the presence of more proliferating cells in the transgenic plants than in the control plants

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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overexpression of OSR1 resulted in suppression of ARGOS

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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OSR1 promoter::β-glucuronidase (proOSR1-GUS) fusion ... In expanding leaves, GUS staining was still detectable ... at the dispersed meristematic regions and the leaf margin

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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OSR1 is ... repressed by ... epi-brassinolide

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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OSR1 is ... repressed by ABA

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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OSR1 promoter::β-glucuronidase (proOSR1-GUS) fusion ... In expanding leaves, GUS staining was still detectable in the blade

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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To further determine the tissue-specific expression of OSR1, we generated transgenic Arabidopsis plants carrying an OSR1 promoter::β-glucuronidase (proOSR1-GUS) fusion gene and examined GUS activities in transgenic plants. In 7-d-old seedlings, abundant GUS staining was detected in leaf primordia

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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We then investigated whether the OSR1-GFP fusion protein co-localized with the ER marker protein Bip-RFP in protoplasts. As shown in Fig. 6(b), the green fluorescence signals of OSR1-GFP fusion proteins closely overlapped the red fluorescence signals of Bip-RFP, indicating that OSR1 is localized to the ER

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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the expression levels of ... CycD3;1 in expanding leaves were comparable between the two genotypes. However, persistent expression of ... CycD3;1 was detected even in leaves of 40-d-old 35S-OSR1 plants

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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OSR1 is induced by ethylene

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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OSR1 promoter::β-glucuronidase (proOSR1-GUS) fusion ... In expanding leaves, GUS staining was still detectable in ... the petiole

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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ARGOS ... found to be ER-localized

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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  • Gene expression

the expression levels of ANT ... in expanding leaves were comparable between the two genotypes. However, persistent expression of ANT ... was detected even in leaves of 40-d-old 35S-OSR1 plants

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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overexpression of ARGOS also inhibited ARL expression

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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we could not detect an obvious alteration of ARGOS ... mRNA levels in the osr1-1 mutant

Feng G, Qin Z, Yan J, Zhang X, Hu Y - Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and final organ size in orchestration with ARGOS and ARL

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Furthermore, promKNAT7:GUS fusion expression is closely associated with the vascular system and interfascicular fibers in Arabidopsis seedlings, roots, and inflorescence stems

Li E, Wang S, Liu Y, Chen JG, Douglas CJ - OVATE FAMILY PROTEIN4 (OFP4) interaction with KNAT7 regulates secondary cell wall formation in Arabidopsis thaliana

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nuclear localization of OFP1

Li E, Wang S, Liu Y, Chen JG, Douglas CJ - OVATE FAMILY PROTEIN4 (OFP4) interaction with KNAT7 regulates secondary cell wall formation in Arabidopsis thaliana

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In 7-day-old seedlings (Figure 5d), promOFP4:GUS was expressed mainly in the root, at the root–hypocotyl junction, and in cotyledons ... in cotyledons, expression was observed in both veins and other tissues

Li E, Wang S, Liu Y, Chen JG, Douglas CJ - OVATE FAMILY PROTEIN4 (OFP4) interaction with KNAT7 regulates secondary cell wall formation in Arabidopsis thaliana

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Reverse-transcription PCR (RT-PCR) analysis of ELA1 or ELA2 transcripts confirmed that ELA1 and ELA2 exhibit partially overlapping expression patterns

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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ELA1–GUS expression was observed in the shoot apical meristem

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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ELA1–GUS expression was observed in the ... petioles of young leaves and emerging leaves

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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ELA2–GUS was expressed in the SAM

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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we transiently expressed ELA–green fluorescent protein fusions ... ELA2–GFP ... in onion epidermal cells ... microscopic analysis of the transformed onion cells revealed a similar fluorescence pattern between the two ELA–GFP ... and the m-gfp5-ER reporter known to be localized in the ER

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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Reverse-transcription PCR (RT-PCR) analysis of ELA1 or ELA2 transcripts confirmed that ELA1 and ELA2 exhibit partially overlapping expression patterns

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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GID1a ... also slightly upregulated in ELA1-OE

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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We also observed that GA2ox2 was upregulated in ELA2-OE plants

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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we transiently expressed ELA–green fluorescent protein fusions ... ELA1–GFP ... in onion epidermal cells ... microscopic analysis of the transformed onion cells revealed a similar fluorescence pattern between the two ELA–GFP ... and the m-gfp5-ER reporter known to be localized in the ER

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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GA3ox1 was strongly upregulated in ELA1-OE

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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  • Gene expression

ELA2 was expressed in the leaf margin

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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GA3ox1 was strongly upregulated in ... ELA2-OE

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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  • Gene expression

ELA2 was expressed in the ... petiole vein of cotyledons

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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GIDc ... also slightly upregulated in ELA1-OE

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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ELA2–GUS was expressed in the ... petioles of young leaves

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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We also generated a fusion protein between ELA2 and the red fluorescent protein of Discosoma sp. reef coral (DsRED), co-transformed ELA2–DsRED or DsRED with the m-gfp5-ER protein into the onion epidermal cells, and examined their localization patterns. As shown in Figures (2d–i), while there was little overlap between DsRED and gfp5-ER, ELA2–DsRED was found to be co-localized with the m-gfp5-ER

Zhang Y, Zhang B, Yan D, Dong W, Yang W, Li Q, Zeng L, Wang J, Wang L, Hicks LM, He Z - Two Arabidopsis cytochrome P450 monooxygenases, CYP714A1 and CYP714A2, function redundantly in plant development through gibberellin deactivation

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pnp1 ... We were particularly intrigued by the hybridization patterns for the petB and petD introns (Figure 3b), in which bands shorter than the complete excised introns (bands 2 and 4) were detected, these being band 3 for the petB intron and bands 5 and 6 for the petD intron

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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An intermediate phenotype was observed for P184L, in which a conserved residue located in the phosphorolytically inactive first core domain is altered. In this case, a mixture of mature and 3′-extended 23S rRNA was observed. Thus, with respect to 23S rRNA maturation, P184L is a weak pnp mutant allele; the other mutants appeared as the WT

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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total RNA was first examined by gel electrophoresis and ethidium bromide staining, revealing a reduced mobility for one of the fragments comprising chloroplast 23S rRNA for the three null mutants, as well as G596R and D625N (Figure S1). This is due to defective exonucleolytic trimming of approximately 100 nucleotides (nt) of the intergenic region between 23S and 4.5S rRNA

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... The introns discussed here belong to Group II, whose splicing mechanism entails lariat formation (reviewed in Stern et al., 2010). The amount of the lariat junction can be measured by qRT-PCR using two primers pointing towards the junction, and Figure 4(b) shows results for the amount of lariat junction-containing petD intron fragments in the WT and null mutants. While there was some variability, each mutant accumulates four to eightfold more lariat junctions than the WT. This suggests that the pnp-specific intron-containing bands 5 and 6 in Figure 3(b) include the lariat junction, and because they are shorter than the full-length excised intron (band 4), represent intron degradation intermediates. We subsequently decided to focus on band 5, the most abundant novel intron-containing band in the null mutants. To map its ends we used cRT-PCR. As shown in the Figure 5 inset, samples not treated with T4 RNA ligase gave rise to amplification of the intact intron (open arrowhead), as expected. However, ligated samples generated additional bands (full arrowheads), with a major pnp1-1 product absent from the WT sample, suggesting that it might represent the gel band of interest from Figure 3(b). A faint and smaller band was amplified in the WT. Both products were cloned and sequenced, and although their ends were variable (see below), the WT and pnp1-1 products lacked approximately 240 and 200 nt, respectively, in comparison with the 709-nt full-length intron

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... We also confirmed (Figure S2a) previously published 3′ extensions for the monocistronic rbcL and psbA transcripts (Marchive et al., 2009), which in the case of rbcL was verified by gel blot (Figure S2b). Again, a mixture of the WT and null mutant pattern was observed for P184L. In addition, we examined the dicistronic atpB-atpE gene cluster (Figure S2c), whose slightly more complex transcript pattern derives from the presence of two promoters as well as processing to yield atpE-specific species (Schweer et al., 2006). Again, the pattern was interpretable as 3′-end extensions although in this case, P184L appeared as the WT. This finding suggests that atpBE 3′-end maturation is less sensitive to the amount of cpPNPase activity

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... Also of note were four novel bands observed for atpH (marked 2–5). Bands 2 and 5 were present only in the null mutants, band 3 was prominent in the null mutants and P184L, and present weakly in another mutant of the first core domain, S202N. Band 4 was present in all mutants, but most strongly in the weak allele P184L. One possible interpretation could be that bands 2–5 represent the products of a succession of endonucleolytic cleavages between atpH and atpF that are subsequently trimmed by PNPase. This situation would be consistent with a recently proposed model for chloroplast polycistronic RNA processing (Pfalz et al., 2009). Their reduced intensities in the weak alleles probably reflect the presence of residual cpPNPase activity in those mutants. In the case of band 4, however, the residual activity increases its abundance perhaps, for example, by trimming band 2 or 3. The precise 3′-ends of atpH transcripts were compared between the WT and pnp1-1 using circular RT-PCR (cRT-PCR; Figure 2c). WT transcripts had two main 3′-ends. The end nearest the coding region was well represented in pnp1-1, suggesting it might be generated by transcription termination. The pnp1-1 mutant also accumulated a series of extended 3′-ends, as suggested by the gel blot, and in keeping with the possibility that they are endonucleolytic cleavage products

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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To extend this analysis, we investigated the composition of poly(A) tails in the WT and pnp1-1 using oligo(dT)-primed RT-PCR. As shown in Table 1, both homo- and heteropolymeric tails were found for the psbA mRNA in the WT, while only homopolymeric A-tails were present in pnp1-1

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... Figure 5 shows a model of the petD intron upon which the 5′- and 3′-ends of cRT-PCR products are displayed. The cloned 5′-ends were similar in the WT and pnp1-1, with most being clustered in a 6-nt stretch in the first stem of Domain I, and most of the remaining ones in the loop of Domain II. These 5′-ends may represent sites of endonucleolytic cleavage, and would be expected to be impervious to PNPase activity, which has strict 3′→5′ polarity. In contrast, the WT and mutant had distinct clusters of 3′-ends, both located in Domain I. These were in the exon binding domain 2 (EBS2) for pnp1-1, and in a Domain I stem for the WT. These two clusters are separated by approximately 40 nt, which is consistent with the size difference of the cloned PCR products. The simplest interpretation is that PNPase normally completes degradation of the linearized intron, while occasionally stalling at the location marked by 3′-ends in the WT. On the other hand, PNPase seems to be required to degrade the intron sequences starting at EBS2

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... In the psbB gene cluster (Figure 3), two genes (petB and petD) contain introns, while psbN is expressed from its own promoter on the opposite strand. As shown in Figure 3(b), the various coding region probes, with the exception of psbN, revealed patterns that while more complex, were reminiscent of other genes described above, with the null mutants showing stronger effects, and P184L and S202N intermediate phenotypes. On the other hand, transcripts appeared to be less diffuse than in the case of the atpI cluster (Figure 2), suggesting that their 3′-ends might be more homogeneous. We checked this by cRT-PCR, using petD as an example (Figure 3c), and found that although it had multiple 3′-ends, they were indeed less dispersed than for atpH

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... In the case of psbN, the null mutants were nearly depleted for the transcript (Figure 3b) which, however, is dispensable for normal PSII function

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... We analyzed two such clusters, namely those encoding atpI/atpH/atpF/atpA and psbB/psbT/psbN/psbH/petB/petD. For the atpI gene cluster (Figure 2), a molecular phenotype common to null mutants for all five probes used is the presence of non-discrete high molecular transcripts that correlate with the diminution of most of the corresponding discrete bands (Figure 2b). These may represent imprecise 3′-end formation rather than transcript instability

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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qRT-PCR analysis of the atpI coding region showed no difference between the WT and pnp1-1 (data not shown), although only the band marked ‘1’ remains discrete and unchanged

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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TILLING mutants, D625N appeared to overaccumulate PNPase, P184L was comparable to the WT, S202N slightly lower than the WT, and for G596R, no signal could be detected in either native or denaturing gels

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... for psbB a band shorter than any WT transcript was observed (band 1), which we speculate is a degradation intermediate

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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pnp1 ... Also of note was the fact that while the psbA 3′-end tails were longer in the WT compared with the mutant, 60% of the tails present in WT were heterogeneous at their 5′-ends, but terminated in 49–150-nt stretches of adenosines, suggesting that they may have been initiated by PNPase activity and elongated by PAP. The three 23S rRNA tails found from the WT were homogeneous poly(A), as were most of the tails from 16S rRNA. This contrasted with the rather heterogeneous tails of the psbA mRNA

Germain A, Herlich S, Larom S, Kim SH, Schuster G, Stern DB - Mutational analysis of Arabidopsis chloroplast polynucleotide phosphorylase reveals roles for both RNase PH core domains in polyadenylation, RNA 3'-end maturation and intron degradation

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CKX3 is normally expressed ... not in leaf primordia

Holst K, Schmülling T, Werner T - Enhanced cytokinin degradation in leaf primordia of transgenic Arabidopsis plants reduces leaf size and shoot organ primordia formation

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CKX3 is normally expressed in the central zone of the meristem ([Gordon et al., 2009] and [Bartrina et al., 2011

Holst K, Schmülling T, Werner T - Enhanced cytokinin degradation in leaf primordia of transgenic Arabidopsis plants reduces leaf size and shoot organ primordia formation

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LOX2 transcript level ... was significantly reduced in tcp4-1 plants

Sarvepalli K, Nath U - Hyper-activation of the TCP4 transcription factor in Arabidopsis thaliana accelerates multiple aspects of plant maturation

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LOX2 transcript level ... was not significantly up-regulated in TCP4:VP16-C plants compared to Col-0

Sarvepalli K, Nath U - Hyper-activation of the TCP4 transcription factor in Arabidopsis thaliana accelerates multiple aspects of plant maturation

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Several AGG3pro:GUS reporter lines were produced but displayed aberrantly high expression in most tissues assayed

Chakravorty D, Trusov Y, Zhang W, Acharya BR, Sheahan MB, McCurdy DW, Assmann SM, Botella JR. - An atypical heterotrimeric G-protein ?-subunit is involved in guard cell K?-channel regulation and morphological development in Arabidopsis thaliana

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Northern blot analysis showed that AGG3 expression was highest in reproductive tissues, with comparatively low expression observed in all other tissues analysed

Chakravorty D, Trusov Y, Zhang W, Acharya BR, Sheahan MB, McCurdy DW, Assmann SM, Botella JR. - An atypical heterotrimeric G-protein ?-subunit is involved in guard cell K?-channel regulation and morphological development in Arabidopsis thaliana

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Both GFP–AGG3 and AGG3–GFP showed fluorescence clearly limited to the periphery of the cell in roots and leaves of stably transformed Arabidopsis lines (Figure 5a–c), although they also showed small motile vesicle-like spots (Figure 5c), much like the Golgi-localization reported for AGG1, but seldom seen for AGG2 ... When cells from GFP fusion transgenic lines were partially plasmolysed the fluorescence shrank away from the cell walls and was confined to the periphery of the protoplast (Figure 5d,e), demonstrating that AGG3 is located on the plasma membrane, not the extracellular space

Chakravorty D, Trusov Y, Zhang W, Acharya BR, Sheahan MB, McCurdy DW, Assmann SM, Botella JR. - An atypical heterotrimeric G-protein ?-subunit is involved in guard cell K?-channel regulation and morphological development in Arabidopsis thaliana

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Membrane localization was also observed when tobacco leaves were infiltrated with the GFP fusion constructs (Figure 5f–h). The intensity of the GFP signal almost doubled when tobacco leaves were co-infiltrated with a 35Spro:AGB1 construct (compare Figure 5g with 5h and quantified in 5i), indicating that the presence of an additional β-subunit helps stabilize AGG3, as observed for other Arabidopsis γ-subunits (Adjobo-Hermans et al., 2006; Zeng et al., 2007). However, unlike AGG1, localization of AGG3 in the motile vesicular-like spots appeared to increase when co-infiltrated with AGB1. Such an increase may indicate retention of, and therefore possibly a function for, AGB1/AGG3 dimers on or within internal vesicles

Chakravorty D, Trusov Y, Zhang W, Acharya BR, Sheahan MB, McCurdy DW, Assmann SM, Botella JR. - An atypical heterotrimeric G-protein ?-subunit is involved in guard cell K?-channel regulation and morphological development in Arabidopsis thaliana

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Performance of RT-PCR on guard cell mRNA confirmed that AGG3 is expressed in these cells

Chakravorty D, Trusov Y, Zhang W, Acharya BR, Sheahan MB, McCurdy DW, Assmann SM, Botella JR. - An atypical heterotrimeric G-protein ?-subunit is involved in guard cell K?-channel regulation and morphological development in Arabidopsis thaliana

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As leaves mature, TCP14 ... 15 ... gene expression in leaves is repressed in a apical to basal (basiplastic) manner

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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TCP14 is expressed ... in ... developing leaf vascular bundles

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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  • Gene expression

TCP14 is also expressed at low levels in the vegetative shoot apical meristem

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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  • Gene expression

TCP14 ... expressed in leaf primordia ... TCP14 is expressed more widely in the leaf blade (Figure 3E,G), including young trichomes (Figure 3D) and developing leaf vascular bundles

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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  • Gene expression

TCP14 is expressed at the base of the cotyledons

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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  • Gene expression

TCP15 ... expressed in leaf primordia ... TCP15 is mostly expressed in primordial leaf margins

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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  • Gene expression

TCP14 is expressed more widely in the leaf blade ... As leaves mature, TCP14/15 gene expression in leaves is repressed in a apical to basal (basiplastic) manner ... As leaves mature, TCP14/15 gene expression in leaves is repressed in a apical to basal (basiplastic) manner

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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  • Gene expression

TCP14 is expressed ... in ... young trichomes

Kieffer M, Master V, Waites R, Davies B - TCP14 and TCP15 affect internode length and leaf shape in Arabidopsis

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  • Gene expression

we detected MTR4 promoter activity in ... apical ... meristems

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

significant MTR4 promoter activity was observed in vascular tissues of ... leaves

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

No signal corresponding to the 5′ part of the ETS was detected in ... mtr4

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

significant MTR4 promoter activity was observed in vascular tissues of cotyledons

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected ... 35S(P) and P–A3 intermediates in ... xrn4 ... small fragment of approximately 200 nt was detected

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Our data show that mtr4 mutants accumulate the 5′ ETS downstream of site P as well as 5.8S and 18S rRNAs precursors, but show no obvious defects in 25S or 5S processing and accumulate wild-type steady-state levels of the four rRNAs

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected 35S* precursors and 5′ ETS–A3 fragments in ... fry1 mutants ... In addition, signals of approximately 1.4–1.7 kb were seen for xrn2 mutants, and were more pronounced in ... fry1

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected 35S* precursors and 5′ ETS–A3 fragments in xrn2 ... In addition, signals of approximately 1.4–1.7 kb were seen for xrn2 mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

No signal corresponding to the 5′ part of the ETS was detected in ... rrp6l2

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

fragments of approximately 0.4–1.7 kb, representing degradation intermediates of the 5′ ETS, accumulated ... to higher levels in xrn2 xrn3

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

No signal corresponding to the 5′ part of the ETS was detected in ... xrn4

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

To test whether RRP6L1 or RRP6L2 contribute to processing of 5.8S rRNA, we analysed total RNA from wild-type, mtr4, rrp6l1, rrp6l2 and rrp6l1 rrp6l2 plants. All plants had similar levels of mature 5.8S rRNA. 5.8S rRNA processing intermediates were detected in rrp6l2 but not rrp6l1 mutants, although rrp6l2 plants accumulated fewer 5.8S rRNA precursors than mtr4 mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

simultaneous down-regulation of both AtMTR4 and RRP6L2 resulted in both strong accumulation of 5.8S precursors and mild reduction of mature 5.8S rRNAs

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Small RNA blots were hybridized to a series of probes whose locations are indicated in Figure 7(a). Hybridization with probe S1 detected small RNAs in xrn2 xrn3 ... while probe S2 detected small RNAs in xrn2 xrn3

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

The S1 probe detected 35S* precursor transcripts comprising the entire 5′ ETS, all three rRNAs and the 3′ ETS in ... fry1 mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

No signal corresponding to the 5′ part of the ETS was detected in ... rrp6l1

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

To test whether RRP6L1 or RRP6L2 contribute to processing of 5.8S rRNA, we analysed total RNA from wild-type, mtr4, rrp6l1, rrp6l2 and rrp6l1 rrp6l2 plants. All plants had similar levels of mature 5.8S rRNA. 5.8S rRNA processing intermediates were detected in rrp6l2 but not rrp6l1 mutants, although rrp6l2 plants accumulated fewer 5.8S rRNA precursors than mtr4 mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected ... 35S(P) and P–A3 intermediates in ... rrp6l2 ... probe S2 revealed a strong signal of 500 nt in mtr4 mutants and to a lesser extent in rrp6l2 plants ... Finally, a small fragment of approximately 200 nt was detected

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

The S1 probe detected 35S* precursor transcripts comprising the entire 5′ ETS, all three rRNAs and the 3′ ETS in ... xrn2 xrn3 ... mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

The size of these small RNAs is 21 nt, as determined by comparison with known 24 nt siRNAs generated from the promoter region (Figure 7c) (Preuss et al., 2008). These small RNAs were also detected by a probe from P1 to P′, but not when we used a probe spanning P to P1 (Figure 7d). A radiolabelled DNA probe spanning 100 nt of mature 5.8S rRNA and 150 nt of the ITS2 detected 21 nt small RNAs in mtr4, but not in any of the other samples (Figure 7b). These result shows that, when default degradation pathways are disrupted, accumulating rRNA processing intermediates and non-functional maturation by-products can become substrates of pathway that generates small RNAs

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

We detected three 5.8S processing intermediates that accumulated strongly in mtr4 samples as compared to wild-type (Figure 3b,c). The relative levels of the precursors varied between samples (Figure S6b), but accumulated in all samples compared to wild-type. None of the three intermediates was detected using a probe situated just 5′ of mature 5.8S rRNA, indicating that all molecules had correctly processed 5′ ends (data not shown). However, steady-state levels of mature 5.8S rRNA were identical in wild-type and mtr4 plants (Figure 3b). To identify the 5.8S rRNA precursors observed in mtr4 plants, we performed circular RT-PCR. After RNA ligation, cDNA synthesis was initiated using a reverse primer situated inside mature 5.8S rRNA. PCR products spanning the ligated 5′ and 3′ ends were amplified using a reverse primer situated inside mature 5.8S rRNA and a forward primer situated immediately 3′ to mature 5.8S rRNA. All clones had correctly processed 5′ ends, but the 3′ ends mapped between positions 4084 and 4089 (wild-type 11/18, mtr4 10/27) or between positions 4191 and 4194 (wild-type 6/18, mtr4 13/27) from the transcription start site. A few clones (wild-type 1/18, mtr4 4/27) map to positions 4118 and 4142, respectively. These results indicate that the smallest pre-5.8S species observed on the Northern blot harbours a short 3′ extension of 10 nt, while the largest 5.8S precursor contains 120 nt of ITS2 (Figure 3). These results show that AtMTR4, unlike its yeast counterpart, is not essential for 3′ maturation of 5.8S rRNA

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

fragments of approximately 0.4–1.7 kb, representing degradation intermediates of the 5′ ETS, accumulated in xrn2 plants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

The levels of large rRNA precursors comprising both 5.8S and 25S rRNAs were almost similar in mtr4 and wild-type plants, but mtr4 mutants accumulated higher amounts of 3′ extended 5.8S molecules in the small molecular weight range

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

we detected MTR4 promoter activity in all organs. Strong activity was detected in embryos

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected ... 35S(P) and P–A3 intermediates in ... xrn3 ... a small fragment of approximately 200 nt was detected

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Small RNA blots were hybridized to a series of probes whose locations are indicated in Figure 7(a). Hybridization with probe S1 detected small RNAs in ... fry1 samples, while probe S2 detected small RNAs in ... fry1

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected 35S* precursors and 5′ ETS–A3 fragments in ... xrn2 xrn3 ... In addition, signals of approximately 1.4–1.7 kb were seen for xrn2 mutants, and were more pronounced in xrn2 xrn3

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Small RNA blots were hybridized to a series of probes whose locations are indicated in Figure 7 ... probe S2 detected small RNAs in ... mtr4 samples

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

We next examined 18S rRNA processing in mtr4 plants. Levels of fully processed 18S rRNA were similar in all plants, indicating that AtMTR4 is not required for 18S rRNA maturation (Figure 5a, probe S6). Probes situated 5′ or 3′ to mature 18S rRNA detected the 35S(P) rRNA precursor in both wild-type and mtr4 plants, and two smaller processing intermediates that accumulated to different levels (Figure 5a, probes S5 and S7). A fragment of 2.6 kb was present in wild-type but almost absent in mtr4 samples. This 18S precursor was also detected using a probe in the 3′ part of the 5′ ETS (Figure 6b), and corresponds to the P–A3 intermediate generated by cleavage of the 35S(P) precursor at position 3835 (Zakrzewska-Placzek et al., 2010). A second signal of 2 kb was stronger in mtr4 than in wild-type (Figure 5a, probes S5 and S7). To map the 3′ and 5′ ends of these processing intermediates, we performed circular RT-PCR. When we used oligonucleotides situated 3′ of the A2 site (o4) (Zakrzewska-Placzek et al., 2010) and 5′ of mature 18S (o1), all 3′ extremities corresponded to site A3, whereas the 5′ extremities matched either the P site or the P′ site (Figure 5c). The P′ site is situated 80 nt upstream of the 18S rRNA (Lange et al., 2008). Therefore, the 2.6 and 2 kb 18S rRNA precursors correspond to P–A3 and P′–A3, respectively. The Northern analysis shows that P–A3 is mostly detected in wild-type while P′–A3 is the major form that accumulates in mtr4 (Figure 5a, probes S5 and S7). Next, we used oligonucleotides situated inside mature 18S (o2) and immediately 3′ of mature 18S rRNA (o3) (Figure 5c, right panel). All sequences obtained from wild-type samples had mature 5′ ends. The 3′ ends mapped either to the A3 site (10/25) or to positions 3662–3667 (15/25), which are close to a second endonucleolytic cleavage site like the S. cerevisiae A2 site (Zakrzewska-Placzek et al., 2010). Both fragments were also amplified from mtr4 samples, albeit with a different ratio: the majority of clones (20/34) matched the 5′ 18S–A3 fragment, and only 8/34 clones matched the shorter 5′ 18S–A2 fragment. Six of the 34 clones obtained from mtr4 samples corresponded to the P′-A3 fragment. Non-encoded tails of 5–20 adenosines were present on 25 of the 28 clones corresponding to the P′-A3 fragment, and 25 of the 30 clones corresponding to the 5′ 18S-A3 fragment obtained from wild-type or mtr4 (Figure 5c). By contrast, only four of the 23 5′ 18S–A2 fragments were polyadenylated. These results show that four pre-18S species – P–A3, P′–A3, 5′ 18S–A3 and 5′ 18S–A2 – are produced in both wild-type and mtr4 plants. Cleavage of the P–A3 precursor at the P′ site produces the P′–A3 intermediate as a common rRNA processing intermediate. Its polyadenylation status and the accumulation of this fragment in mtr4 mutants suggests that the P′–A3 intermediate is a substrate of AtMTR4 and a polyadenylation-assisted 3′→5′ exoribonuclease. Clearly, the absence of AtMTR4 does not affect processing at the 5′ end of 18S rRNA. However, compared to wild-type, mtr4 plants accumulate more 5′ 18S–A3 fragments than 5′ 18S–A2 fragments, suggesting that 3′ processing of pre-18S species may be delayed

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected ... 35S(P) and P–A3 intermediates in ... mtr4 ... probe S2 revealed a strong signal of 500 nt in mtr4 mutants ... The 3′ and 5′ ends of this fragment were identified by circular RT-PCR and mapped exactly to positions 1275 (site P) and 1757 (site P′), respectively. Hence, this fragment is generated by cleavage at P and P′. Accumulation of the P–P′ fragment in mtr4 plants shows that AtMTR4 is required for efficient degradation of this rRNA maturation by-product. Finally, a small fragment of approximately 200 nt was detected

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

To test whether RRP6L1 or RRP6L2 contribute to processing of 5.8S rRNA, we analysed total RNA from wild-type, mtr4, rrp6l1, rrp6l2 and rrp6l1 rrp6l2 plants. All plants had similar levels of mature 5.8S rRNA. 5.8S rRNA processing intermediates were detected in rrp6l2 but not rrp6l1 mutants, although rrp6l2 plants accumulated fewer 5.8S rRNA precursors than mtr4 mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

No signal corresponding to the 5′ part of the ETS was detected in wild-type, xrn3

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

Probe S2, situated in the 3′ part of the 5′ ETS, detected ... 35S(P) and P–A3 intermediates in ... rrp6l1 ... Finally, a small fragment of approximately 200 nt was detected

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

the accumulation of both 5.8S rRNA precursors and P–P′ fragments was similar in mtr4 dcl2 dcl4 and mtr4 plants (Figure 7g), indicating that small RNA pathways probably do not contribute to removal of incompletely processed precursors or maturation by-products

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

We then compared the rate of 5.8S rRNA synthesis between wild-type and mtr4 plants. 5.8S rRNA was chosen as mtr4 mutants accumulate 5.8S rRNA precursors. In addition, the size of the 5.8S rRNA makes it easily to compare with 5S rRNA, both of which are incorporated in equimolar amounts in ribosomes but are transcribed from distinct loci. We followed rRNA production in vivo by incorporation of radiolabelled UTP in de novo synthesized 5S and 5.8S rRNA over periods of 4, 6 and 8 h. Uptake of the radiolabelled nucleotide was similar in wild-type and mtr4 seedlings as estimated by scintillation counting of crude extracts. Analysis of low-molecular-weight RNAs by gel electrophoresis showed that, although steady-state levels of mature rRNAs were similar in wild-type and mtr4 seedlings, incorporation of the radiolabel in both 5.8S rRNA and 5S rRNA was reduced in mtr4 samples (Figure 8). Although the diminished rate of rRNA accumulation cannot be attributed with certainty to delayed 5.8S rRNA maturation, these data indicate that down-regulation of MTR4 impairs the de novo accumulation rate of mature rRNAs

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

We observed a faint fluorescent signal in the nucleoplasm and a strong signal in nucleoli in all cells, suggesting that AtMTR4 is predominantly a nucleolar protein

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

fragments of approximately 0.4–1.7 kb, representing degradation intermediates of the 5′ ETS, accumulated ... to higher levels in ... fry1 plants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

The S1 probe detected 35S* precursor transcripts comprising the entire 5′ ETS, all three rRNAs and the 3′ ETS in xrn2 ... mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

To visualize the expression of MTR4 in plant tissues, we expressed a GUS reporter gene under the control of 2 kb of genomic sequence upstream of the MTR4 gene. In agreement with publicly available microarray data (http://www.Genevestigator.com), we detected MTR4 promoter activity in all organs ... such as young leaves

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

To examine the possibility that accumulation of illegitimate small RNAs accounts for the developmental phenotype of mtr4 mutants, we aimed to abrogate the production of 5′ ETS-derived small RNAs by introducing the mtr4 mutation into a dcl2 dcl4 background (Xie et al., 2005). Analysis of the small RNA fraction confirmed that production of 21 nt small RNAs from the 5′ ETS is suppressed in mtr4 dcl2 dcl4 triple mutants

Lange H, Sement FM, Gagliardi D - MTR4, a putative RNA helicase and exosome co-factor, is required for proper rRNA biogenesis and development in Arabidopsis thaliana

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  • Gene expression

prepared ethanol-inducible transgenic lines harboring ... KNAT2 ... failed to up-regulate CUC1

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

PromLFY:STM plants ... We also determined the levels of the precursor of MIR164a and found that it was also activated, demonstrating its increased transcription is at least partially responsible for the elevated miR164 levels

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

prepared ethanol-inducible transgenic lines harboring KNAT1 ... failed to up-regulate CUC1

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

CUC2 ... lack obvious STM binding sites

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

WUS ... that were prepared as similar inducible versions ... failed to modify the levels of CUC2

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

expression levels determined by RT-PCR in STM-GR transgenics ... We observed an effect on CUC2 only 96 h after DEX treatment (Fig. 3B). The longer activation time, which is prevented by incubation with CYC suggests that ... CUC3 are indirectly regulated by STM

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

PromLFY:STM plants ... We then determined the levels of CUC genes ... by RT-PCR in the proximal and distal region of the organ. The levels of CUC1-3 ... were increased in the proximal part of the organ, as expected from the whole-mount staining

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

We then analyzed the expression of CUC genes at the RNA level ... We observed that 4 h of induction of STM-GR caused the up-regulation of CUC1 ... The longer activation time, which is prevented by incubation with CYC suggests that ... CUC2 ... indirectly regulated by STM

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

LFY that were prepared as similar inducible versions ... failed to modify the levels of ... CUC3

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

WUS ... that were prepared as similar inducible versions ... failed to modify the levels of ... CUC3

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

WUS ... that were prepared as similar inducible versions ... not able to induce CUC1

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

LFY that were prepared as similar inducible versions ... not able to induce CUC1

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

inducible ... STM-VP16 caused a moderate up-regulation of CUC3

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

We then analyzed the expression of CUC1 in the strong stm-1 mutant. As expected, we found that the levels of CUC1 were reduced in this mutant

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

We performed a transcriptome analysis on ATH1 microarrays, 12 h after the induction of STM and STM-VP16 ... IPT7, which participates in cytokinin biosynthesis, was induced nearly three times by STM, although it did not pass the logit-T filter used for the analysis of the arrays

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

We performed a transcriptome analysis on ATH1 microarrays, 12 h after the induction of STM and STM-VP16 ... At1g50960, which encodes a GA 2-oxidase7 involved in the catabolism of gibberellin, was significantly induced by both STM and STM-VP16

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

LFY that were prepared as similar inducible versions ... failed to modify the levels of CUC2

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

we crossed PromLFY:STM plants to a MIR164a reporter. We found that MIR164a was also activated by STM, in a similar way to the CUC reporters

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

Analysis of ... CUC2 reporters in PromLFY:STM plants revealed that they were ... ectopically expressed in young leaves, especially at the base of leaf lobes

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

That the VP16 activated version caused stronger phenotypic defects than STM alone, suggested that the group of genes moderately induced by STM but strongly by STM-VP16 (Fig. 1D, cluster no. 2; Supplemental Table S4) might be particularly related to the KNOXI pathway. CUC1 (At3g15170) was included in this group and stood out as a particularly attractive candidate to study in more detail due to its known roles in the establishment of Arabidopsis meristem ... STM was able to induce CUC1 levels 4-fold, while STM-VP16 further enhanced the response to more than 100-fold in the microarray experiments

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

PromLFY:STM plants ... We then determined the levels of CUC genes ... by RT-PCR in the proximal and distal region of the organ. The levels of CUC1 ... were increased in the proximal part of the organ, as expected from the whole-mount staining

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

expression levels determined by RT-PCR in STM-GR transgenics ... CUC3 was also activated, but after 24 h. Supplemental addition of CYC prevented the induction of CUC3

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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PromLFY:STM plants ... We then determined the levels of CUC genes ... by RT-PCR in the proximal and distal region of the organ. The levels of CUC1-3 ... were increased in the proximal part of the organ, as expected from the whole-mount staining

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

We then prepared an activated version of KNAT1, by fusing to it the VP16 domain. In this case, we observed that the induction of KNAT1-VP16 caused the activation of CUC1

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

Analysis of CUC1 ... reporters in PromLFY:STM plants revealed that they were ... ectopically expressed in young leaves, especially at the base of leaf lobes

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

We then tested the short-term response of miR164 to STM levels. We measured miR164 12 h after the induction of STM (Fig. 7E). However, in this case we did not observe an obvious change in the levels of the miRNA

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

To test whether STM was directly regulating the expression of CUC1, we turned again to the STM-GR system. Direct targets of STM-GR should be induced after DEX treatment, even in the presence of the translational inhibitor, cycloheximide (CYC). First, we crossed STM-GR transgenics to a CUC1 reporter line (PromCUC1:GUS). We used 1.4-kb CUC1 upstream sequences that have already been described to be sufficient to complement a cuc1 cuc2 mutant when fused to its coding sequence (Baker et al., 2005). The CUC1 promoter is normally expressed in the apical region, but DEX treatment during 24 h caused a strong induction in whole seedlings (Fig. 3A). As a control of the experimental approach, we observed that the supplemental addition of CYC largely prevented the burst of GUS protein activity, which is expected from the inhibition of the translational machinery (Fig. 3A). Note that these experiments were carried out under long induction and staining periods to ensure the saturation of the system

Spinelli SV, Martin AP, Viola IL, Gonzalez DH, Palatnik JF - A mechanistic link between STM and CUC1 during Arabidopsis development

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  • Gene expression

To analyze the expression pattern of the FYF gene during Arabidopsis development, total RNA was extracted from different growth stages (7- and 14-day-old plants) and different parts of 45-day-old mature wild-type Arabidopsis for real-time quantitative RT-PCR analysis. As shown in Figure 2d, the expression of the FYF gene was barely detected in 7-day-old seedlings after germination, and the expression level was slightly increased in 14-day-old plants. In 45-day-old mature plants, the FYF gene was expressed in all of the tissues tested (i.e. the root, rosette leaf, stem, cauline leaf, flower and silique) with a relatively higher expression level in the rosette and cauline leaves than in the flowers

Chen MK, Hsu WH, Lee PF, Thiruvengadam M, Chen HI, Yang CH. - The MADS box gene, FOREVER YOUNG FLOWER, acts as a repressor controlling floral organ senescence and abscission in Arabidopsis

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Arabidopsis eFP browser data (Schmid et al., 2005; Winter et al., 2007; http://www.bar.utoronto.ca/efp/cgi-bin/efpWeb.cgi ), which report that FYF is barely detected in the leaves of young plants but is highly expressed in leaves during a late developmental stage

Chen MK, Hsu WH, Lee PF, Thiruvengadam M, Chen HI, Yang CH. - The MADS box gene, FOREVER YOUNG FLOWER, acts as a repressor controlling floral organ senescence and abscission in Arabidopsis

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  • Gene expression

GUS activity was also detected at the base of the petiole of the cotyledons and leaves in FYF:GUS seedlings (Figure 3k,l) and young plants (Figure 3m,n), though GUS activity was barely detected in the rosette leaves during the early developmental stages

Chen MK, Hsu WH, Lee PF, Thiruvengadam M, Chen HI, Yang CH. - The MADS box gene, FOREVER YOUNG FLOWER, acts as a repressor controlling floral organ senescence and abscission in Arabidopsis

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  • Gene expression

As a step toward determining the functional sites of the four VDAC genes in planta, transgenic Arabidopsis plants carrying the respective VDAC promoter–GUS constructs were generated, and the spatiotemporal expression pattern of the reporter gene was evaluated. The VDAC1 promoter was active in shoot meristems and the surrounding regions (Fig. 3A), corresponding to the root meristematic zone, but not in root caps (Fig. 3B), lateral roots (Fig. 3C), the entire leaf area (Fig. 3D), and the stigma and anthers (Fig. 3E

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

VDAC1–GFP and VDAC3–GFP were exclusively detected in mitochondria

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

To examine the relationship between VDAC function and defence activity against the bacterial pathogen Pst, the expression profiles of VDAC genes during pathogen infection were analysed using quantitative RT-PCR. All four VDAC members were up-regulated upon infection with the bacterial pathogen. The relative transcript levels of VDAC1 and VDAC3 were enhanced to a greater degree when plants were infected with the avirulence pathogen, Pst DC3000 (avrRpt2), than with the virulence pathogen, Pst DC3000

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

VDAC1 or VDAC4 expression was totally suppressed in vdac1-6 or vdac4-2 plants, and VDAC2 or VDAC3 expression decreased to 27% or 23% in vdac2-2 or vdac3-3, respectively, compared with that of the WT (Fig. 4D

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

VDAC3 promoter activity was scarcely detected in leaves, except for the leaf tips (Fig. 3K–M), and rather strong activity was detected in the anthers and stigma (Fig. 3N

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

The VDAC4 promoter was constitutively active in whole seedlings (Fig. 3O) and in almost all organs (Fig. 3P–S

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

The activity of the VDAC2 promoter was constitutively elevated in the above-ground parts of the plant (Fig. 3F) and in the root tips (Fig. 3G) and steles (Fig. 3H). The activity was detected in whole leaves of the plants which had developed further (Fig. 3I) and in whole flower organs, including sepals (Fig. 3J

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

VDAC1 or VDAC4 expression was totally suppressed in vdac1-6 or vdac4-2 plants, and VDAC2 or VDAC3 expression decreased to 27% or 23% in vdac2-2 or vdac3-3, respectively, compared with that of the WT (Fig. 4D

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

To examine the relationship between VDAC function and defence activity against the bacterial pathogen Pst, the expression profiles of VDAC genes during pathogen infection were analysed using quantitative RT-PCR. All four VDAC members were up-regulated upon infection with the bacterial pathogen. The relative transcript levels of VDAC1 and VDAC3 were enhanced to a greater degree when plants were infected with the avirulence pathogen, Pst DC3000 (avrRpt2), than with the virulence pathogen, Pst DC3000

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

The activity of the VDAC2 promoter was constitutively elevated in the above-ground parts of the plant (Fig. 3F) and in the root tips (Fig. 3G) and steles (Fig. 3H). The activity was detected in whole leaves of the plants which had developed further (Fig. 3I) and in whole flower organs, including sepals (Fig. 3J

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

In contrast, the green fluorescence signals of VDAC2–GFP and VDCA4–GFP were detected not only in mitochondria, but also in another subcellular area

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

VDAC1 or VDAC4 expression was totally suppressed in vdac1-6 or vdac4-2 plants, and VDAC2 or VDAC3 expression decreased to 27% or 23% in vdac2-2 or vdac3-3, respectively, compared with that of the WT (Fig. 4D

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed ... observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

To examine the relationship between VDAC function and defence activity against the bacterial pathogen Pst, the expression profiles of VDAC genes during pathogen infection were analysed using quantitative RT-PCR. All four VDAC members were up-regulated upon infection with the bacterial pathogen. The relative transcript levels of VDAC1 and VDAC3 were enhanced to a greater degree when plants were infected with the avirulence pathogen, Pst DC3000 (avrRpt2), than with the virulence pathogen, Pst DC3000

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

VDAC1 or VDAC4 expression was totally suppressed in vdac1-6 or vdac4-2 plants, and VDAC2 or VDAC3 expression decreased to 27% or 23% in vdac2-2 or vdac3-3, respectively, compared with that of the WT (Fig. 4D

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

To examine the relationship between VDAC function and defence activity against the bacterial pathogen Pst, the expression profiles of VDAC genes during pathogen infection were analysed using quantitative RT-PCR. All four VDAC members were up-regulated upon infection with the bacterial pathogen. The relative transcript levels of VDAC1 and VDAC3 were enhanced to a greater degree when plants were infected with the avirulence pathogen, Pst DC3000 (avrRpt2), than with the virulence pathogen, Pst DC3000

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

VDAC1–GFP and VDAC3–GFP were exclusively detected in mitochondria

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

The VDAC4 promoter was constitutively active in whole seedlings (Fig. 3O) and in almost all organs (Fig. 3P–S

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

Furthermore, up-regulation of the pathogenesis-related genes PR1, PR2, and PR5 was observed in vdac2-2 and vdac4-2, but not in vdac1-6 and vdac3-3, under normal conditions (Fig. 4G

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

In contrast, the green fluorescence signals of VDAC2–GFP and VDCA4–GFP were detected not only in mitochondria, but also in another subcellular area

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

As a step toward determining the functional sites of the four VDAC genes in planta, transgenic Arabidopsis plants carrying the respective VDAC promoter–GUS constructs were generated, and the spatiotemporal expression pattern of the reporter gene was evaluated. The VDAC1 promoter was active in shoot meristems and the surrounding regions (Fig. 3A), corresponding to the root meristematic zone, but not in root caps (Fig. 3B), lateral roots (Fig. 3C), the entire leaf area (Fig. 3D), and the stigma and anthers (Fig. 3E

Tateda C, Watanabe K, Kusano T, Takahashi Y - Molecular and genetic characterization of the gene family encoding the voltage-dependent anion channel in Arabidopsis

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  • Gene expression

BiP2-promoter GUS construct (Oh et al., 2003) expressed in alg10-1 resulted in a strong GUS signal throughout the whole seedling

Farid A, Pabst M, Schoberer J, Altmann F, Glössl J, Strasser R. - Arabidopsis thaliana alpha1,2-glucosyltransferase (ALG10) is required for efficient N-glycosylation and leaf growth

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  • Gene expression

We amplified the whole open reading frame including additional 5′- and 3′-untranslated regions of the Arabidopsis ALG10 from leaf cDNA

Farid A, Pabst M, Schoberer J, Altmann F, Glössl J, Strasser R. - Arabidopsis thaliana alpha1,2-glucosyltransferase (ALG10) is required for efficient N-glycosylation and leaf growth

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  • Gene expression

To determine its subcellular localization ALG10 was fused to GFP and transiently expressed in N. benthamiana leaf epidermal cells. Analysis of the ALG10–GFP fusion protein by confocal laser scanning microscopy revealed a reticular distribution pattern resembling ER localization (Figure 2). To confirm the localization, we co-expressed ALG10–GFP with the ER-retained GnTI-CaaaTS-mRFP, a mutated fusion protein that mainly localizes to the ER with a minor portion concentrating in the Golgi (Figure 2) (Schoberer et al., 2009). Most of ALG10–GFP displayed co-localization with GnTI-CaaaTS-mRFP, which is in agreement with the proposed function of the enzyme in the assembly of the dolichol-linked oligosaccharide precursor in the ER

Farid A, Pabst M, Schoberer J, Altmann F, Glössl J, Strasser R. - Arabidopsis thaliana alpha1,2-glucosyltransferase (ALG10) is required for efficient N-glycosylation and leaf growth

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  • Gene expression

The gene expression profiles from the Bio-Array Resource for Plant Functional Genomics (BAR; http://bbc.botany.utoronto.ca/efp/cgi-bin/efpWeb.cgi) and Genevestigator (https://www.genevestigator.com/gv/index.jsp) indicate that ALG10 expression is high in roots, stems and leaves and reduced in pollen, embryos and endosperm

Farid A, Pabst M, Schoberer J, Altmann F, Glössl J, Strasser R. - Arabidopsis thaliana alpha1,2-glucosyltransferase (ALG10) is required for efficient N-glycosylation and leaf growth

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  • Gene expression

We hypothesized that underglycosylation of proteins in alg10-1 should lead to activation of the UPR. In accordance with our prediction, the expression of the folding chaperone binding protein (BiP) was increased in the alg10-1 mutant

Farid A, Pabst M, Schoberer J, Altmann F, Glössl J, Strasser R. - Arabidopsis thaliana alpha1,2-glucosyltransferase (ALG10) is required for efficient N-glycosylation and leaf growth

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  • Gene expression

To analyze the expression pattern in plant tissues, a 2.9-kb fragment upstream of the ATG codon of APC10 was fused to the β-glucuronidase (GUS) reporter gene by means of a FAST vector ... reduced expression was observed at the tip of developing true leaves, most probably reflecting reduced expression of APC10 in cells that start to differentiate

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

To analyze the expression pattern in plant tissues, a 2.9-kb fragment upstream of the ATG codon of APC10 was fused to the β-glucuronidase (GUS) reporter gene by means of a FAST vector ... A cross-section through the shoot apical meristem (Figure 2b) showed that APC10 was expressed in all cells

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

in the APC10OE plants ... Prol1_At5g16250 ... up-regulated

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

To determine the subcellular localization of the APC10 protein, it was stably produced as a C-terminal protein fused to the green fluorescent protein (GFP), driven by the cauliflower mosaic virus (CaMV) 35S promoter in Arabidopsis seedlings. The APC10–GFP fusion protein was functional because it was able to complement the fission yeast apc10ts strain at a non-permissive temperature (data not shown). In the root meristem, the APC10–GFP fluorescence was predominantly located in the nucleus, excluded from the nucleolus and, to a minor extent, also present in the cytoplasm. Several small fluorescent dots were observed inside the nucleus as well (Figure 3a, arrows). These punctuations resembled nuclear bodies, probably representing the association of APC10 with the proteasome complex (Tao et al., 2005). In the root elongation zone, the nuclear bodies could also be visualized, although to a lesser extent than in the root tip (Figure 3b,c). In leaf pavement cells and trichomes, the APC10–GFP fluorescence had the same pattern as in root cells, including the presence of nuclear bodies

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

in the APC10OE plants ... Prol2_At3g42660 ... up-regulated

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

Leaves of 20 F1 plants from each cross (APC10OE × pCYCB1;1:D-box–GUS and Col-0 × pCYCB1;1:D-box–GUS) were harvested, stained for GUS activity and cleared with lactic acid. Photographs were taken and the GUS staining intensity quantified with ImageJ software (see Experimental Procedures). First, in plants at 7 DAS, in which leaves 1 and 2 were entirely proliferating (Figure 6), the GUS staining intensity was clearly reduced (Figure 8a,c). In leaf 3 at 12 DAS, in which the transition between cell proliferation and cell expansion is clear, a reduced GUS staining intensity was visible (Figure 8b,d). As this reduced GUS staining was not caused by reduced CYCB1;1 expression (Figure 7c), the data strongly suggest that APC10 overexpression enhances the D-box-dependent proteolysis of CYCB1;1

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

To analyze the expression pattern in plant tissues, a 2.9-kb fragment upstream of the ATG codon of APC10 was fused to the β-glucuronidase (GUS) reporter gene by means of a FAST vector ... When leaf development progressed, the APC10-GUS expression gradually diminished, but remained high in vascular tissues

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

To analyze the expression pattern in plant tissues, a 2.9-kb fragment upstream of the ATG codon of APC10 was fused to the β-glucuronidase (GUS) reporter gene by means of a FAST vector ... Staining for GUS activity revealed a strong and more or less constitutive expression in young leaves, hypocotyls, female organs and roots with the remarkable exception of the root apical region (Figure 2). A similar expression pattern was obtained when the 2.9-kb promoter fragment and the entire coding sequence, including the five introns, was fused at the stop codon to the GUS reporter and analyzed in transgenic plants

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

Leaf 3 was harvested and analyzed by qPCR. Consistent with the stimulation of G2/M, the data showed that the transcript level of ... CDKB2;1 ... had increased in the APC10OE plants

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

The analysis of APC10 expression in a wide range of microarrays suggested that it is constitutively expressed during plant development and throughout the cell cycle

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

Leaf 3 was harvested and analyzed by qPCR. Consistent with the stimulation of G2/M, the data showed that the transcript level of ... BUB3.1 ... had increased in the APC10OE plants

Eloy NB, de Freitas Lima M, Van Damme D, Vanhaeren H, Gonzalez N, De Milde L, Hemerly AS, Beemster GT, Inzé D, Ferreira PC. - The APC/C subunit 10 plays an essential role in cell proliferation during leaf development

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  • Gene expression

ABA treatment increased the expression of ARF2 (relative to the control without ABA, from about 5 folds at 12 hr to 2 folds at 30 hr)

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

we compared the HB33 expression of the wild type with arf1 ... and did not find the expression difference of HB33 between these mutants and the wild type (Figure 4B

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

we compared the HB33 expression of the wild type with ... arf6 ... and did not find the expression difference of HB33 between these mutants and the wild type (Figure 4B

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

the expression of HB33 was inhibited by ABA treatment in the wild type but not in the arf2-101 mutant

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

We also determined that the expression of HB33 was lower in two ARF2-flag overexpressing lines than in the wild type and was not further reduced by ABA treatment (Figure 3A)

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

In searching for genes regulated by ARF2 from microarray data [21], we found that AT1G75240 encoding HOMEOBOX PROTEIN 33 (HB33) was up-regulated in the arf2 mutant (the average signal was 153 in the wild type and 276 in arf2-6 from three independent repeats) [21

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

We confirmed the microarray results by qRT-PCR, which showed that the expression of HB33 was about 1.5 times greater in arf2-101 than in the wild type (Figure 3A)

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

It appears that auxin treatment weakly induced the expression of HB33 in the early times in ... arf2 mutant

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

we compared the HB33 expression of the wild type with ... arf21 mutant, and did not find the expression difference of HB33 between these mutants and the wild type (Figure 4B

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

It appears that auxin treatment weakly induced the expression of HB33 in the early times in ... wild type

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

the expression of HB33 was inhibited by ABA treatment in the wild type

Wang L, Hua D, He J, Duan Y, Chen Z, Hong X, Gong Z - Auxin Response Factor2 (ARF2) and its regulated homeodomain gene HB33 mediate abscisic acid response in Arabidopsis

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  • Gene expression

Plants carrying a CYCB1;1:GUS fusion containing a mitotic destruction box (Colón-Carmona et al., 1999) were subjected to GUS staining. The GUS activity was strongly enhanced by the mdo1-1 mutation in both shoot apices and root tips

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

mdo1-1 ... expression of CYCB1;2:GUS containing a destruction box, the expression of which is induced by the duration of the G2/M transition, but not by DNA damage responses (Culligan et al., 2006), was not drastically enhanced in the mutant shoot apex, and was instead slightly reduced in the mutant root tips

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

MDO1 promoter:GUS fusion ... growing leaves

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

MDO1 promoter:GUS fusion ... The vasculatures were also strongly stained throughout the whole plant

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

To examine the expression of the MDO1 gene, we constructed a MDO1 promoter:GUS fusion (MDO1pro:GUS) as a probe. As shown in Figure 9, the MDO1 gene is expressed nearly ubiquitously throughout the whole plant, but at a low level. In seedlings, strong staining was mainly observed in meristematic tissues, such as in the SAM

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

Although ANT expression was downregulated in the wild-type central region (Figure 2h), it was detected in a wide range of cells in the mdo1-1 shoot apex

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

we first examined the expression of the ... GAMMA RESPONSE 1 (ATGR1 ... Total RNA was prepared from shoot apex tissues and then subjected to quantitative real-time RT-PCR (qRT-PCR) analysis. It was revealed that, in mdo1-1, the transcript levels of these genes were increased 2–2.5-fold compared with those in the wild type

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

we first examined the expression of the RAD51 ... Total RNA was prepared from shoot apex tissues and then subjected to quantitative real-time RT-PCR (qRT-PCR) analysis. It was revealed that, in mdo1-1, the transcript levels of these genes were increased 2–2.5-fold compared with those in the wild type

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

we first examined the expression of the ... BREAST CANCER SUSCEPTIBILITY 1 (ATBRCA1 ... Total RNA was prepared from shoot apex tissues and then subjected to quantitative real-time RT-PCR (qRT-PCR) analysis. It was revealed that, in mdo1-1, the transcript levels of these genes were increased 2–2.5-fold compared with those in the wild type

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

In the mdo1-1 shoot apex, STM expression was reduced in the surface cells (Figure 2f), or, in some samples, multiple STM expression domains could be observed

Hashimura Y, Ueguchi C - The Arabidopsis MERISTEM DISORGANIZATION 1 gene is required for the maintenance of stem cells through the reduction of DNA damage

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  • Gene expression

To experimentally determine the subcellular localization of the RUG2 protein, stably transgenic Arabidopsis plants expressing a construct encoding the first 103 amino acid residues of RUG2 fused to GFP (RUG2-N-terminal:GFP) were obtained, and GFP signals were detected in large, oval-shaped subcellular structures completely overlapping with chlorophyll autofluorescence

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... rpS4

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

qRT-PCR ... confirmed that in rug2-1 the matK ... upregulated ... 12.1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

qRT-PCR ... confirmed that in rug2-1 ... rpoC2 ... upregulated ... 7.5

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

RUG2-N-terminal:GFP stably transgenic plants ... and were stained with MitoTracker Red CMX-ROS, a specific mitochondria fluorescence dye (see Experimental procedures ... green fluorescence signals in the punctate structures co-localized with the MitoTracker Red signals (Figure 3j,l), suggesting that RUG2 accumulates within the mitochondria

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1. In the chloroplastic genome ... psbN ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... psbF

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

qRT-PCR ... confirmed that in rug2-1 ... rpoB ... upregulated ... 9.2

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

We studied the spatial and temporal expression patterns of RUG2 in Col-0 by qRT-PCR, and detected RUG2 transcripts in all organs and stages analyzed (Figure S4 ... detected in vegetative leaves

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... orf149 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... ndhB.2

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

atpB (ATP synthase subunit ... investigated ... by western blot analysis ... accumulated in rug2-1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... matK

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... rpS2

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

Only three mitochondrial genes of unknown function (orf116 ... were upregulated in rug2-1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

FtsH10 protein ... investigated ... by western blot analysis ... much less FtsH10 protein was detected in rug2-1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

orf109b ... upregulated in rug2-1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... AtMg00590 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

We studied the spatial and temporal expression patterns of RUG2 in Col-0 by qRT-PCR, and detected RUG2 transcripts in all organs and stages analyzed ... detected in ... 4-day-old seedlings ... 1.7- and 2.6-fold higher than in 12- and 21-day-old plants, respectively

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2 ... 1 ... rpoB

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

To examine the effect of rug2 mutations on the expression of the RUG2 gene, total RNA was extracted from 3-week-old Col-0, Ler, rug2-1 and rug2-2 plants, reverse transcribed and PCR amplified. Primers flanking the rug2-2 T-DNA insertion (F3 and R3 in Figure 2b) yielded amplification products only from Col-0, but not from rug2-2 cDNA or genomic DNA (Figure 2d

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1. In the chloroplastic genome ... psbA ... were all downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... atpH

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

The levels of the plastid-encoded RbcL (large subunit of RUBISCO ... investigated ... by western blot analysis ... accumulated in ... soldat10

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... rpS3 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... rpL2

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... rpS3

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... C2

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

psbA (PSII core complex D1 ... investigated ... western blot analysis ... accumulated in rug2-1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... orf25 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... ccb206 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... rpS15

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... AtMg00520 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

atpB (ATP synthase subunit ... investigated ... by western blot analysis ... accumulated in ... soldat10

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

psbA (PSII core complex D1 ... investigated ... by western blot analysis ... accumulated in ... soldat10

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... rug2-1 ... rpL20

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... orf294 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

The levels of the plastid-encoded RbcL (large subunit of RUBISCO ... investigated ... by western blot analysis ... accumulated in rug2-1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... orf113 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

qRT-PCR ... confirmed that in rug2-1 ... cox1 (encoding cytochrome oxidase subunit 1 ... downregulated ... 1.2

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... psbL

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... ndhE

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... mitochondrial genes ... AtMg00500 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

We studied the spatial and temporal expression patterns of RUG2 in Col-0 by qRT-PCR, and detected RUG2 transcripts in all organs and stages analyzed (Figure S4 ... detected in ... stems

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

orf121a ... upregulated in rug2-1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... in rug2-1 ... ycf1.2

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... rpL5 ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

rug2-1 mutant ... DNA microarray ... orf101b ... downregulated

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in our microarray ... upregulated ... rug2-1 ... rpL16

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

in rug2-1 ... RpoTp/SCA3 ... was upregulated 1.8-fold compared with Ler (1.8 ± 0.3; P = 0.002 ... was upregulated 1

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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qRT-PCR ... confirmed that in rug2-1 ... psbA ... downregulated ... 1.3-fold

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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  • Gene expression

FtsH10 protein ... investigated ... by western blot analysis ... FtsH10 protein was detected ... in soldat10

Quesada V, Sarmiento-Mañús R, González-Bayón R, Hricová A, Pérez-Marcos R, Graciá-Martínez E, Medina-Ruiz L, Leyva-Díaz E, Ponce MR, Micol JL - Arabidopsis RUGOSA2 encodes an mTERF family member required for mitochondrion, chloroplast and leaf development

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We then examined the response of these punctate organelles to brefeldin A (BFA), a chemical that affects the distribution of plant organelles including the Golgi and trans-Golgi network (TGN) in Arabidopsis cells (Grebe et al., 2003; Dettmer et al., 2006). When ANp::AN-GFP plants were treated with 100 μm BFA for 30 min, compartments bearing AN-GFP were trapped in aggregated BFA bodies (Figure 5d), whereas large bright dots were not affected. These results again suggested that the large dot-like structures do not reflect physiological localization (this idea was confirmed by immuno-EM as described later). Thus, we hereafter focused our attention on the small punctate structures with weak GFP fluorescence

Minamisawa N, Sato M, Cho KH, Ueno H, Takechi K, Kajikawa M, Yamato KT, Ohyama K, Toyooka K, Kim GT, Horiguchi G, Takano H, Ueda T, Tsukaya H - ANGUSTIFOLIA, a plant homolog of CtBP/BARS, functions outside the nucleus

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To confirm that this localization of AN-GFP around the TGN represented authentic localization of the endogenous AN protein, we then performed immuno-electron microscopy using anti-AN antibody with samples prepared by a freeze-fixation and freeze-substitution method and found that AN actually localized on subdomains of TGN under an electron microscope (Figure 7a, Figure S2). No large dot-like structure was detected

Minamisawa N, Sato M, Cho KH, Ueno H, Takechi K, Kajikawa M, Yamato KT, Ohyama K, Toyooka K, Kim GT, Horiguchi G, Takano H, Ueda T, Tsukaya H - ANGUSTIFOLIA, a plant homolog of CtBP/BARS, functions outside the nucleus

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Subcellular localization of AN suggested that AN could function in membrane trafficking around the TGN. We examined the structure and movement of VHA-a1-mRFP-positive compartments in the an-1 mutant for any abnormality. However, we did not detect any difference between an-1 and WT by confocal microscopy (Figure 7d,e). On the other hand, using a transmission electron microscope, we found that vesicles near the TGN in the an-1 mutant were larger compared with those of WT (Figure 7b,c), and the number of snowman-shaped vesicles around the TGN was significantly increased; 8.7% of vesicles exhibited the snowman-shape in an-1 whereas 1.3% of vesicles were snowman-shaped in WT (n = 173 vesicles for an-1 and n = 156 vesicles for WT, P < 0.05, Student’s t-test). These results further provide support for the idea that AN acts in a membrane trafficking event around the TGN

Minamisawa N, Sato M, Cho KH, Ueno H, Takechi K, Kajikawa M, Yamato KT, Ohyama K, Toyooka K, Kim GT, Horiguchi G, Takano H, Ueda T, Tsukaya H - ANGUSTIFOLIA, a plant homolog of CtBP/BARS, functions outside the nucleus

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To investigate the physiological intracellular localization of AN in detail, we then observed the AN-GFP signal using confocal laser scanning microscopy. Observation of ANp::AN-GFP plants under a Nipkow spinning disc microscope revealed that AN-GFP was also localized on many small punctate structures (Figure 5c, arrowheads) with much weaker fluorescence. Weak and diffusive fluorescence was also observed in the cytosol, probably reflecting shuttling of AN, which does not harbor a signal peptide or transmembrane domains in the polypeptide, between the punctate structures and the cytosol

Minamisawa N, Sato M, Cho KH, Ueno H, Takechi K, Kajikawa M, Yamato KT, Ohyama K, Toyooka K, Kim GT, Horiguchi G, Takano H, Ueda T, Tsukaya H - ANGUSTIFOLIA, a plant homolog of CtBP/BARS, functions outside the nucleus

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To understand the precise localization of AN, we crossed ANp::AN-GFP or 35S::AN-GFP with transgenic plants expressing xylosyltransferase (XYLT)-Venus (Pagny et al., 2003), sialyltransferase (ST)-Venus (Boevink et al., 1998), or vacuolar proton ATPase a1 (VHA-a1)-mRFP (Dettmer et al., 2006). These proteins are known as specific markers for the medial-Golgi, trans-Golgi, and TGN, respectively, which are all known to aggregate into BFA bodies upon BFA treatment. 35S::AN-GFP lines were constructed for this experiment because intensity of GFP signal of AN-GFP in ANp::AN-GFP plants was not stable, probably due to multiple copies of the transgene. Fluorescence intensity of the 35S::AN-GFP transgenic lines with a single T-DNA insertion was strong, and confirmed that 35S::AN-GFP shows the same intracellular localization as ANp::AN-GFP and completely rescued the an-1 phenotypes (data not shown). Using these plants, we demonstrated that AN-GFP localized on small punctate structures close to the trans-Golgi cisternae labeled by ST-Venus, but their localization did not overlap (Figure 6a). When co-expressed with XYLT-Venus, AN-GFP similarly localized to punctate structures (Figure 6b), but the distance between medial cisternae labeled by XYLT-Venus and AN-GFP compartments seemed to be larger than that between ST-Venus and AN-GFP (compare Figure 6a and b). Next, we observed plants coexpressing AN-GFP and VHA-a1-mRFP and found that these partially colocalized (Figure 6c

Minamisawa N, Sato M, Cho KH, Ueno H, Takechi K, Kajikawa M, Yamato KT, Ohyama K, Toyooka K, Kim GT, Horiguchi G, Takano H, Ueda T, Tsukaya H - ANGUSTIFOLIA, a plant homolog of CtBP/BARS, functions outside the nucleus

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We first observed the localization pattern of AN-GFP in the ANp::AN-GFP line mentioned above using an epifluorescent microscope, which revealed that AN-GFP was localized to large dot-like structures and the cytosol as observed in transgenic plants expressing AN-GFP under regulation of 35S promoter (Kim et al., 2002). The size of the dot-like structures seemed to be comparable to the size of the nucleus, which was why we concluded nuclear localization of AN-GFP in the previous study. To verify the nuclear localization, we examined whether large dots of AN-GFP was stained with DAPI, to find that the AN-GFP dots do not overlap with fluorescence from DAPI either in trichomes or epidermal cells (Figure 5a,b). In addition to the DAPI staining, we also examined whether several organelle markers were localized to the large dot-like structures, but no organelle marker examined (described below) overlapped with these structures. These results, together with extremely large size and bright fluorescence, suggested that the large dot-like structures could represent non-physiological aggregates

Minamisawa N, Sato M, Cho KH, Ueno H, Takechi K, Kajikawa M, Yamato KT, Ohyama K, Toyooka K, Kim GT, Horiguchi G, Takano H, Ueda T, Tsukaya H - ANGUSTIFOLIA, a plant homolog of CtBP/BARS, functions outside the nucleus

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ERF4 ... found at substantially lower levels in the NEK6-overexpressing lines

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ACS7 ... expression tended to decrease in the NEK6-overexpressing lines compared with that in Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

NEK6 expression ... in 10-day-old Arabidopsis seedlings ... was ... induced to a stably moderate level throughout 200 mm NaCl treatment

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

To investigate the spatial and temporal patterns of CYCB1;1 affected by NEK6, the CYCB1;1:GUS fusion gene was used as a marker to examine cells in G2/M phase ... The transgenic reporter plant that expresses CYCB1;1;GUS ... was crossed with the ... NEK6-overexpressing lines, and the resulting progenies were tested for GUS activity ... The crossed OE2 ... still had higher ... NEK6 expression ... compared with Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... Ethylene signaling-related genes, including the ethylene receptor gene ERS1 ... were also expressed at higher levels in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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NEK6, under the control of CaMV 35S promoter plus a translational enhancer Ω, was transferred into Arabidopsis plants ... overexpressing lines ... had higher gene expressions by northern blot ... compared with Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ACS1 ... clearly up-regulated in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ERF1 ... found at substantially lower levels in the NEK6-overexpressing lines

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ACS2 ... expression tended to decrease in the NEK6-overexpressing lines compared with that in Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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GUS staining, representing the NEK6 expression level, was found ... in ... young leaves

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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we examined if this gene expression could be altered by ethylene precursor ACC ... After immersion in 10 μm ACC, NEK6 expression was clearly induced to a peak level at 6 h after initiation of the treatment in 10-day-old Arabidopsis seedlings

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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To investigate the spatial and temporal patterns of CYCB1;1 affected by NEK6, the CYCB1;1:GUS fusion gene was used as a marker to examine cells in G2/M phase ... The transgenic reporter plant that expresses CYCB1;1;GUS ... was crossed with the ... NEK6-overexpressing lines, and the resulting progenies were tested for GUS activity ... Compared with reporter line Col ... in the NEK6-overexpressing line OE2, GUS activity was substantially higher in ... petioles

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ACS5 ... clearly up-regulated in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ACO2 ... clearly up-regulated in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ERS1 ... found at substantially lower levels in the NEK6-overexpressing lines

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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To investigate the spatial and temporal patterns of CYCB1;1 affected by NEK6, the CYCB1;1:GUS fusion gene was used as a marker to examine cells in G2/M phase ... The transgenic reporter plant that expresses CYCB1;1;GUS ... was crossed with ... NEK6-overexpressing lines, and the resulting progenies were tested for GUS activity ... Compared with reporter line Col ... in the NEK6-overexpressing line OE2, GUS activity was substantially higher in shoot apexes

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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NEK6, under the control of CaMV 35S promoter plus a translational enhancer Ω, was transferred into Arabidopsis plants ... overexpressing lines ... had higher gene expressions by ... quantitative PCR ... compared with Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ACS2 ... clearly up-regulated in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... EIN3-like transcription factor gene EIL1 ... were also expressed at higher levels in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ERF4 ... were also expressed at higher levels in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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NEK6, under the control of CaMV 35S promoter plus a translational enhancer Ω, was transferred into Arabidopsis plants ... overexpressing lines ... had higher protein levels compared with Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

To investigate the spatial and temporal patterns of CYCB1;1 affected by NEK6, the CYCB1;1:GUS fusion gene was used as a marker to examine cells in G2/M phase ... The transgenic reporter plant that expresses CYCB1;1;GUS ... was crossed with the nek6 mutant ... and the resulting progenies were tested for GUS activity. The crossed ... NEK6 still had ... lower NEK6 expression ... compared with Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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A nek6 mutant harboring a T-DNA insertion between exon 7 and exon 8 ... showed no NEK6 gene expression

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ACS1 ... expression tended to decrease in the NEK6-overexpressing lines compared with that in Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ACO4 ... clearly up-regulated in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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In the two NEK6-overexpressing lines, expression of cyclin genes CYCB1;1 ... was enhanced significantly compared with Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ACO2 ... expression tended to decrease in the NEK6-overexpressing lines compared with that in Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

Using quantitative PCR, we further confirmed that NEK6 transcript levels in ... leaves

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

expression of cyclin genes ... CYCA3;1 ... was clearly reduced in nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

To investigate the spatial and temporal patterns of CYCB1;1 affected by NEK6, the CYCB1;1:GUS fusion gene was used as a marker to examine cells in G2/M phase ... The transgenic reporter plant that expresses CYCB1;1;GUS ... was crossed with ... NEK6-overexpressing lines, and the resulting progenies were tested for GUS activity ... Compared with reporter line Col ... in the NEK6-overexpressing line OE2, GUS activity was substantially higher in ... young leaves

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

GUS staining, representing the NEK6 expression level, was found ... In mature rosette leaves of pot-grown plants ... expressed weakly in vascular tissues

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ERF1 ... were also expressed at higher levels in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... EBP ... were also expressed at higher levels in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

expression of cyclin genes CYCB1;1 ... was clearly reduced in nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

To investigate the spatial and temporal patterns of CYCB1;1 affected by NEK6, the CYCB1;1:GUS fusion gene was used as a marker to examine cells in G2/M phase ... The transgenic reporter plant that expresses CYCB1;1;GUS ... was crossed with the nek6 mutant ... and the resulting progenies were tested for GUS activity ... Compared with reporter line Col, nek6 showed less GUS activity in shoot apexes

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the nek6 mutant ... ACS7 ... clearly up-regulated in the nek6 mutant

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

GUS staining, representing the NEK6 expression level, was found ... in ... petioles

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

In the two NEK6-overexpressing lines, expression of cyclin genes ... CYCA3;1 was enhanced significantly compared with Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ACO4 ... expression tended to decrease in the NEK6-overexpressing lines compared with that in Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... ACS5 ... expression tended to decrease in the NEK6-overexpressing lines compared with that in Col

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... EBP ... found at substantially lower levels in the NEK6-overexpressing lines

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We examined if the ethylene biosynthesis-related genes and ethylene signaling-related genes were altered in the ... NEK6-overexpressing plants ... EIL1 ... found at substantially lower levels in the NEK6-overexpressing lines

Zhang B, Chen HW, Mu RL, Zhang WK, Zhao MY, Wei W, Wang F, Yu H, Lei G, Zou HF, Ma B, Chen SY, Zhang JS - NIMA-related kinase NEK6 affects plant growth and stress response in Arabidopsis

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  • Gene expression

We have previously shown that the double mutation myb3r1 myb3r4 results in decreased KN mRNA levels (Haga et al., 2007). To reveal spatial aspects of the activation of KN transcription mediated by the MSA-MYB pathway, we examined the expression of a KN promoter-GUS fusion construct (KN::GUS) in the wild type and the double mutants ... GUS activity was also detected in young leaves, where dividing stomatal lineage cells, such as meristemoids and guard mother cells, were densely stained (Fig. 5B). The GUS activity in these cells was markedly decreased in the myb3r1 myb3r4 double mutant

Haga N, Kobayashi K, Suzuki T, Maeo K, Kubo M, Ohtani M, Mitsuda N, Demura T, Nakamura K, Jürgens G, Ito M - Mutations in MYB3R1 and MYB3R4 cause pleiotropic developmental defects and preferential down-regulation of multiple G2/M-specific genes in Arabidopsis

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  • Gene expression

We also observed that the KN promoter had very weak activity in the meristematic region of the root and dividing stomatal lineage cells when all the MSA motifs were mutated

Haga N, Kobayashi K, Suzuki T, Maeo K, Kubo M, Ohtani M, Mitsuda N, Demura T, Nakamura K, Jürgens G, Ito M - Mutations in MYB3R1 and MYB3R4 cause pleiotropic developmental defects and preferential down-regulation of multiple G2/M-specific genes in Arabidopsis

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To evaluate the effects of the myb3r1 myb3r4 double mutation on the expression of G2/M-specific genes, we first defined 185 genes with G2/M-specific expression by a combination of coexpression analysis using ATTED-II (Obayashi et al., 2009) and gene clustering analysis with the microarray data of synchronized MM2d cells (Menges et al., 2003; see “Materials and Methods”). This newly defined G2/M-specific class contained 79 out of 82 genes that had been previously regarded as mitosis-specific genes (Menges et al., 2005) and 134 out of 352 genes that had been classified as M-associated genes (Menges et al., 2003; Supplemental Table S3). When applied to our microarray data, we noticed a strong tendency for this new class of genes to be frequently and strongly down-regulated in the double mutant. Figure 6 displays a frequency distribution of genes against the fold change in the expression levels between the double mutant and the wild type. It was obvious that the frequency distribution of G2/M-specific genes was strongly biased toward down-regulation in the double mutant when compared with the distribution patterns of all other genes on the microarray. Approximately 11.6% of G2/M-specific genes were down-regulated more than 2-fold in the double mutant, whereas only 0.38% of all 16,034 genes analyzed showed such down-regulation. Table II shows the top 30 genes that are most down-regulated in the double mutant (P < 0.05, paired t test), which included 16 genes (53.3%) of the G2/M-specific class, although this class represents only 0.83% of all genes on the microarray. These results supported the idea that MYB3R1 and MYB3R4 may transcriptionally activate multiple G2/M phase-specific genes in Arabidopsis. However, this analysis also revealed that not all the G2/M-specific genes were affected by the double mutation. In fact, the majority of G2/M-specific genes were unaffected or even up-regulated in the myb3r1 myb3r4 double mutant (Fig. 6). In addition, many genes whose expression is not related to the cell cycle were also significantly down-regulated in the double mutant, although roughly as many genes were up-regulated to a similar extent

Haga N, Kobayashi K, Suzuki T, Maeo K, Kubo M, Ohtani M, Mitsuda N, Demura T, Nakamura K, Jürgens G, Ito M - Mutations in MYB3R1 and MYB3R4 cause pleiotropic developmental defects and preferential down-regulation of multiple G2/M-specific genes in Arabidopsis

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the SND1 promoter was activated more than 18-fold when protoplasts were co-transfected with 35S:SND1, but this trans-activation activity was reduced to around twofold for the T94K mutation

Wang H, Zhao Q, Chen F, Wang M, Dixon RA - NAC domain function and transcriptional control of a secondary cell wall master switch

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Overexpression of MYB32 and the corresponding repression of SND1 expression were observed in stem tissues of two independent transgenic lines, as determined by quantitative reverse transcription (qRT)-PCR

Wang H, Zhao Q, Chen F, Wang M, Dixon RA - NAC domain function and transcriptional control of a secondary cell wall master switch

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The wild-type AtSND1 fusion protein was localized to the nucleus as previously reported (Zhong et al., 2006)

Wang H, Zhao Q, Chen F, Wang M, Dixon RA - NAC domain function and transcriptional control of a secondary cell wall master switch

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AtOFP12 ... showed ubiquitous expression in all tissues/organs examined

Wang S, Chang Y, Guo J, Zeng Q, Ellis BE, Chen JG - Arabidopsis ovate family proteins, a novel transcriptional repressor family, control multiple aspects of plant growth and development

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AtOFP6 ... showed ubiquitous expression in all tissues/organs examined

Wang S, Chang Y, Guo J, Zeng Q, Ellis BE, Chen JG - Arabidopsis ovate family proteins, a novel transcriptional repressor family, control multiple aspects of plant growth and development

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AtOFP16 ... showed ubiquitous expression in all tissues/organs examined

Wang S, Chang Y, Guo J, Zeng Q, Ellis BE, Chen JG - Arabidopsis ovate family proteins, a novel transcriptional repressor family, control multiple aspects of plant growth and development

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To investigate expression of MED25, we performed quantitative RT-PCR analysis. MED25 mRNA was detected in ... seedlings

Xu R, Li Y - Control of final organ size by Mediator complex subunit 25 in Arabidopsis thaliana

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we generated transgenic Arabidopsis plants containing a MED25 promoter::GUS fusion (pMED25::GUS). In seedlings, GUS activity was detected in cotyledons

Xu R, Li Y - Control of final organ size by Mediator complex subunit 25 in Arabidopsis thaliana

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we generated transgenic Arabidopsis plants containing a MED25 promoter::GUS fusion (pMED25::GUS). In seedlings, GUS activity was detected in ... leaves

Xu R, Li Y - Control of final organ size by Mediator complex subunit 25 in Arabidopsis thaliana

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we expressed MED25 under the control of the 35S promoter in the Col-0 wild type ... Transgenic plants had significant increases in MED25 mRNA compared with wild-type plants

Xu R, Li Y - Control of final organ size by Mediator complex subunit 25 in Arabidopsis thaliana

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To investigate expression of MED25, we performed quantitative RT-PCR analysis. MED25 mRNA was detected in ... stems

Xu R, Li Y - Control of final organ size by Mediator complex subunit 25 in Arabidopsis thaliana

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  • Gene expression

To investigate expression of MED25, we performed quantitative RT-PCR analysis. MED25 mRNA was detected in ... leaves

Xu R, Li Y - Control of final organ size by Mediator complex subunit 25 in Arabidopsis thaliana

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  • Gene expression

we analyzed AS1 expression under continuous light (LL) conditions. The AS1 mRNA level oscillated diurnally under LL conditions (Figure 2e), indicating that AS1 expression is regulated by the circadian clock. Together with the spatial expression pattern of AS1, our data indicated that AS1 is largely expressed in the same spatiotemporal domain as CO

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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For this experiment, the as1 mutation was introduced into SUC2:CO–HA plants by genetic cross, and we confirmed that CO expression levels in the transgenic plants with or without the as1 mutation were similar (Figure 5d). In the SUC2:CO–HA plants, the FT expression level was drastically higher than that in wild-type plants in LD and 12L/12D (Figure 5e,f). In the SUC:CO–HA/as1-21 line, the FT expression level was still higher than that in the wild type; however, it was markedly lower than that in the SUC2:CO–HA plants (Figure 5e,f). This result suggests that the elevated CO levels (=sensitized conditions) facilitate the depiction of the AS1 contribution to CO-dependent FT expression

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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To study the spatial expression pattern of AS1, we analyzed the GUS expression pattern derived from the AS1 genomic fragment fused to the GUS gene (AS1:AS1–GUS). The GUS activity was predominantly found in the phloem tissues of ... cotyledons ... The expression patterns were similar within plants grown under various growth conditions (Figure S2)

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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  • Gene expression

To study the spatial expression pattern of AS1, we analyzed the GUS expression pattern derived from the AS1 genomic fragment fused to the GUS gene (AS1:AS1–GUS). The GUS activity was predominantly found in the phloem tissues of leaves ... The expression patterns were similar within plants grown under various growth conditions (Figure S2)

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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  • Gene expression

We then analyzed the temporal expression patterns of AS1 under LD and SD conditions. Under these conditions, AS1 mRNA levels changed throughout the day with an afternoon peak in LD and with a broad night peak in SD (Figure 2c,d). In LD, the AS1 peak coincides with the daytime peak of CO (Suarez-Lopez et al., 2001)

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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In addition, when AS1–GFP and CO–RFP were co-expressed in Arabidopsis protoplasts, both GFP and RFP fluorescence co-localized in the nucleus (Figure 2a), indicating that both CO and AS1 exist in the same domain in the nucleus

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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  • Gene expression

addition, when AS1–GFP and CO–RFP were co-expressed in Arabidopsis protoplasts, both GFP and RFP fluorescence co-localized in the nucleus (Figure 2a), indicating that both CO and AS1 exist in the same domain in the nucleus

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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  • Gene expression

The FT transcript levels in the as1 mutant were slightly lower than those in the wild-type plants in LD and 12L/12D

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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  • Gene expression

the loss of as1 function indirectly reduces AtGA20ox1 expression

Song YH, Lee I, Lee SY, Imaizumi T, Hong JC - CONSTANS and ASYMMETRIC LEAVES 1 complex is involved in the induction of FLOWERING LOCUS T in photoperiodic flowering in Arabidopsis.

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PHT4;2 expression was ... detected in roots but not in leaves

Irigoyen S, Karlsson PM, Kuruvilla J, Spetea C, Versaw WK - The sink-specific plastidic phosphate transporter PHT4;2 influences starch accumulation and leaf size in Arabidopsis

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YUC1 staining was also observed immediately distal to a hydathode

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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Expression of YUC4 was not detected in young leaf primordia

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC1 staining was only detected ... the petiole of 8-DAG leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC2 ... relatively strong GUS staining was observed in the meristem

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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as2-1 rev-1 ... when ... treated with 1 μM NPA ... we did not observe the small GUS-staining spots on leaf surfaces

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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pDR5::GUS ... staining in the ... kan1-11 kan2-5 leaves was also concentrated in the top portion of the protrusions

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC4 was also strongly expressed in vascular tissue connecting the leaf tip and hydathodes

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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as2-1 rev-1 ... expressions of ... YUC4 ... associated with the protrusions on leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC2 was also preferentially expressed in the central-layer cells of a hydathode

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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as2-1 rev-1 ... expressions of YUC1 ... associated with the protrusions on leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC1 was expressed in the entire leaf primordium

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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Weak YUC2 staining was detected throughout the entire leaf primordium

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC4 ... As the leaf developed, GUS staining gradually intensified in hydathodes

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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kan1-11 kan2-5 ... expressions of ... YUC2 ... associated with the protrusions on leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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kan1-11 kan2-5 ... expressions of ... YUC4 ... associated with the protrusions on leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC1 staining was only detected in the proximal margin ... of 8-DAG leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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as2-1 rev-1 ... expressions of ... YUC2 ... associated with the protrusions on leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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kan1-11 kan2-5 ... expressions of YUC1 ... associated with the protrusions on leaves

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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pDR5::GUS ... staining in the as2-1 rev-1 ... leaves was also concentrated in the top portion of the protrusions

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC4 was expressed in the leaf protrusions of the mock-treated as2-1 rev-1

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC1 ... in the ... leaf ... strongest GUS staining was found in the proximal part

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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kan1-11 kan2-5 ... when ... treated with 1 μM NPA ... we did not observe the small GUS-staining spots on leaf surfaces

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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YUC4 was expressed in the leaf protrusions of the mock-treated ... kan1-11 kan2-5

Wang W, Xu B, Wang H, Li J, Huang H, Xu L - YUCCA genes are expressed in response to leaf adaxial-abaxial juxtaposition and are required for leaf margin development

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To further investigate the expression pattern of SAG113, its 2.2-kb promoter region was fused with the GUS reporter gene. The GUS staining pattern of the rosette leaves in transgenic Arabidopsis 40 days after germination (DAG) shows that SAG113 is expressed in senescing leaves

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The RNA gel blot analysis indicated that the expression of the typical senescence marker ... SAG13 was strongly up-regulated in the SAG113-induced transgenic plants

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The RNA gel blot analyses show that SAG113 is induced by treatments with ABA for 1 h and 3 h

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the SAG113 expression increased with the progression of leaf senescence in the wild type ... and abi4-2 ... However, the transcript levels of SAG113 in ... abi4-2 ... were significantly reduced compared with those of the wild type

Zhang K, Xia X, Zhang Y, Gan SS - An ABA-regulated and Golgi-localized protein phosphatase controls water loss during leaf senescence in Arabidopsis

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To determine the subcellular localization of SAG113, the SAG113 full coding region was first fused with GFP and transferred into wild-type plants and the epidermis peels containing guard cells examined using confocal microscopy. The GFP signal was observed in numerous small subcellular vesicles in the guard cells (cf. Figure 6b), indicating that SAG113 may be localized to the Golgi apparatus and/or mitochondria. A known Golgi marker, ERH1-DsRed (Wang et al., 2008), was then transferred into the SAG113-GFP transgenic background and imaged using the DsRED channel setting of the confocal microscope (Figure 6c). The Golgi marker co-localized with the SAG113-GFP (Figures 6b and S1) when the same cells were examined using the GFP channel setting. In our settings, the GFP signal (from a 35S-GFP control plant) could be imaged using the GFP channel only (Figure 6f) but not the DsRED channel (Figure 6g). ERH1-DsRed (red fluorescence) and SAG113-GFP (green fluorescence) were also found to be co-localized in root cells using the same channel settings as above (Figure S2). These data strongly suggest that SAG113 is localized in the Golgi apparatus

Zhang K, Xia X, Zhang Y, Gan SS - An ABA-regulated and Golgi-localized protein phosphatase controls water loss during leaf senescence in Arabidopsis

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the SAG113 expression increased with the progression of leaf senescence in the wild type, aba2-1 ... However, the transcript levels of SAG113 in ... aba2-1 ... were significantly reduced compared with those of the wild type

Zhang K, Xia X, Zhang Y, Gan SS - An ABA-regulated and Golgi-localized protein phosphatase controls water loss during leaf senescence in Arabidopsis

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The expression pattern of SAG113 in response to ABA was also confirmed by GUS staining of young leaves following ABA treatment. The young leaves treated with ABA showed uniform and strong GUS staining (right panel in Figure 2b) while the control treatment did not display any GUS staining (left panel in Figure 2b). When the epidermal peels were further examined by microscopy, the GUS expression was found in guard cells

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The RNA gel blot analysis indicated that the expression of the typical senescence marker ... SAG12 ... was strongly up-regulated in the SAG113-induced transgenic plants

Zhang K, Xia X, Zhang Y, Gan SS - An ABA-regulated and Golgi-localized protein phosphatase controls water loss during leaf senescence in Arabidopsis

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To further investigate the expression pattern of SAG113, its 2.2-kb promoter region was fused with the GUS reporter gene ... When the epidermal peels of the stained senescing leaves were examined under a light microscope in detail, the GUS expression was found in guard cells

Zhang K, Xia X, Zhang Y, Gan SS - An ABA-regulated and Golgi-localized protein phosphatase controls water loss during leaf senescence in Arabidopsis

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The expression of SAG113 was examined in expanding young leaves, fully expanded mature leaves, early senescence stage leaves and late senescence stage leaves using RNA gel blot analysis. The SAG113 transcripts were detected in leaves at both early and late senescence stages but not in young leaves or mature leaves

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Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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We next examined expression of leaf polarity marker genes REVOLUTA (REV) and FILAMENTOUS FLOWER (FIL) in the elo2 as2 background ... the leaf abaxial marker FIL was expressed strongly throughout the needle-like leaves of elo2 as2

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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We then introduced a pCYCB1;1:Dbox-GUS construct (CYCB1;1:GUS) into wild-type and elo3 plants, as GUS staining in the plants could reflect a cell state of G2 to M transition (Colon-Carmona et al., 1999 ... accumulation of the CYCB1;1:GUS signal in elo3 leaf primordia was much stronger than that in the wild type during early development of leaves, in which cells were undergoing vigorous proliferation

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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We next examined expression of leaf polarity marker genes REVOLUTA (REV) and FILAMENTOUS FLOWER (FIL) in the elo2 as2 background. rev-9 is a T-DNA enhancer trap line in which β-glucuronidase (GUS) staining represents the expression of the leaf adaxial marker REV (Emery et al., 2003; Hawker and Bowman, 2004). Compared with that in the rev-9/+ plant (Figure 1q), GUS staining was not detected from needle-like leaves of the elo2 as2 rev-9/+ plant

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

To investigate the cellular basis of the Elongator mutants, we analyzed expression patterns of a cell division marker histone H4 by in situ hybridization ... Compared with those in the wild type, H4 signals in the proximal and abaxial domains of elo2 leaf primordia weakened much earlier ... Figure 2b, blue lines; Figure 2d). In some extreme cases, a property of elo2 single mutant plants produced the needle-like leaves, and these structures exhibited even less H4 signals

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

In some extreme cases, a property of elo2 single mutant plants produced the needle-like leaves, and these structures exhibited even less H4 signals (Figure 2e, arrows). However, FIL hybridization signals were detected throughout primordia of needle-like leaves

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

To investigate the cellular basis of the Elongator mutants, we analyzed expression patterns of a cell division marker histone H4 by in situ hybridization ... Compared with those in the wild type, H4 signals in the proximal and abaxial domains of elo2 leaf primordia weakened much earlier ... Figure 2b, blue lines; Figure 2d). In some extreme cases, a property of elo2 single mutant plants produced the needle-like leaves, and these structures exhibited even less H4 signals

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

We then examined transcript levels of several cell cycle-related marker genes by qRT-PCR, using 8-day-old leaves. Cyclin D3;1 (CYCD3;1) is predominantly expressed in the G1-phase and drives the G1/S transition (Dewitte et al., 2003; Menges et al., 2006), H4b is expressed specifically in the S-phase (Soni et al., 1995), while CDT1a, ORC1b, MCM3 and PCNA2 are involved in S-phase DNA replication (Shultz et al., 2007). In addition, CYCA2;1 and CYCB1;1 are involved in S/G2 and G2/M transitions, respectively (Doerner et al., 1996; Shaul et al., 1996). Expression of these markers represents different phases of the cell cycle, and their expression must be downregulated after the corresponding phase of the cell cycle is past. The transcript levels of these tested marker genes were consistently elevated in elo3 leaves (Figure 3e), which suggested that Elongator is required for normal cell-cycle progression

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

Quantitative real-time polymerase chain reaction (qRT-PCR) analyses of DNA repair and replication checkpoint genes in wild-type, elo3, elp5 and drl1 seedlings ... DNA damage accumulation often results in inductions of DNA repair and DNA replication checkpoint genes; BRAC1, RAD51, PARP2, and WEE1 are such genes in Arabidopsis (Kotogany et al., 2010). We thus examined expression of these genes in the Elongator mutants, and found that transcript levels of all these genes were elevated markedly

Xu D, Huang W, Li Y, Wang H, Huang H, Cui X - Elongator complex is critical for cell cycle progression and leaf patterning in Arabidopsis

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  • Gene expression

we performed real-time PCR analysis ... AtMYB88 ... up-regulated in the atgstu17-1 and atgstu17-2 lines

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

in the atgstu17-1 and atgstu17-2 lines ... microarray data ... the DHAR2 gene ... for dehydroascorbate reductase; AT1G75270), involved in the production of ascorbate, also increased 1.97-fold

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

we performed real-time PCR analysis ... AREB1 ... up-regulated in the atgstu17-1 and atgstu17-2 lines

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

in the atgstu17-1 and atgstu17-2 lines ... microarray data ... the GLUTATHIONE SYNTHETASE2 (GSH2) gene (AT5G27380), catalyzing the ligation of Gly to the Cys residue of γ-glutamyl-Cys to form GSH, was up 1.68-fold

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

we performed real-time PCR analysis ... AnnAt1 ... up-regulated in the atgstu17-1 and atgstu17-2 lines

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

we performed real-time PCR analysis ... XERICO ... up-regulated in the atgstu17-1 and atgstu17-2 lines

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

we performed real-time PCR analysis ... COR15b ... up-regulated in the atgstu17-1 and atgstu17-2 lines

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

we performed real-time PCR analysis ... Bax inhibitor-1 ... up-regulated in the atgstu17-1 and atgstu17-2 lines

Chen JH, Jiang HW, Hsieh EJ, Chen HY, Chien CT, Hsieh HL, Lin TP - Drought and salt stress tolerance of an Arabidopsis glutathione S-transferase U17 knockout mutant are attributed to the combined effect of glutathione and abscisic acid

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  • Gene expression

CDS2 ... mRNA levels did not show any substantial alteration in the bio4-1 mutant

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

bio4-1-dependent up-regulation of PR1 is further enhanced in bio4-1/coi1-1 double mutants, which are defective in JA signaling, consistent with possible negative feedback regulation in JA- and SA-related signaling

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

the levels of protein of the size of mitochondrial-localized AtMCC-A were barely affected in bio4-1

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

expression of GST1 was barely altered in the ... bio4-1/coi1-1 double mutants ... indicating that the up-regulation of GST1 expression in bio4-1 is independent of ... JA signaling

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

We also considered the possibility that reduced levels of hitherto uncharacterized biotin-containing proteins may contribute to the observed phenotype in the bio4-1 mutant. To assess this, we isolated nuclei and concentrated nuclear proteins (Turck et al., 2004). Three bands of sizes 80 kDa (data not shown) and 37 and 35 kDa (Figure 5b) were present in the wild-type, but only the 80 kDa band was visible in the bio4-1 mutant. Most likely, the bands with sizes of 80 and 35 kDa represent contamination with the non-nuclear biotin-containing proteins AtMCC-A and AtBCCP1. Interestingly, a protein of size 37 kDa was present in the wild-type but absent in bio4-1 (Figure 5b). Our data therefore indicate the existence of an additional, so far uncharacterized, biotinylated nuclear-localized protein

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

bio4-1 mutant ... GST1 transcripts encoding a glutathionine S-transferase implicated in stress responses such as pathogen attack and oxidative stress accumulated in the mutant

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

CDS1 ... mRNA levels did not show any substantial alteration in the bio4-1 mutant

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

MSD ... mRNA levels did not show any substantial alteration in the bio4-1 mutant

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

Several biotin-containing proteins have been characterized in Arabidopsis plants, including the chloroplast-localized biotin carboxyl carrier proteins AtBCCP1 (approximately 35 kDa) (Choi et al., 1995) and AtBCCP2 (approximately 25 kDa) (Thelen et al., 2001), as well as a biotinyl subunit (also referred to referred as to AtMCC-A; Che et al., 2003) of mitochondrial-localized methylcrotonoyl CoA carboxylase (MCCase) of approximately 80 kDa. To investigate whether the T-DNA insertion in the bio4-1 locus leads to reduced levels of biotin-containing proteins, we detected biotin-containing proteins with streptavidin peroxidase based on the streptavidin–biotin interaction. Western blot analysis revealed that a polypeptide with an approximate size of 80 kDa was predominant in mutant and wild-type leaf extracts, and an additional 35 kDa polypeptide was only weakly present in the mutant. A 25 kDa polypeptide was only detectable in wild-type plants (Figure 5a). These results are consistent with previous observations in wild-type leaves of Arabidopsis (Che et al., 2003; Thelen et al., 2001). Interestingly, the amounts of proteins of the same size as the chloroplast-localized biotin-containing proteins ... AtBCCP2 ... strongly reduced in the bio4-1 mutant

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

Several biotin-containing proteins have been characterized in Arabidopsis plants, including the chloroplast-localized biotin carboxyl carrier proteins AtBCCP1 (approximately 35 kDa) (Choi et al., 1995) and AtBCCP2 (approximately 25 kDa) (Thelen et al., 2001), as well as a biotinyl subunit (also referred to referred as to AtMCC-A; Che et al., 2003) of mitochondrial-localized methylcrotonoyl CoA carboxylase (MCCase) of approximately 80 kDa. To investigate whether the T-DNA insertion in the bio4-1 locus leads to reduced levels of biotin-containing proteins, we detected biotin-containing proteins with streptavidin peroxidase based on the streptavidin–biotin interaction. Western blot analysis revealed that a polypeptide with an approximate size of 80 kDa was predominant in mutant and wild-type leaf extracts, and an additional 35 kDa polypeptide was only weakly present in the mutant. A 25 kDa polypeptide was only detectable in wild-type plants (Figure 5a). These results are consistent with previous observations in wild-type leaves of Arabidopsis (Che et al., 2003; Thelen et al., 2001). Interestingly, the amounts of proteins of the same size as the chloroplast-localized biotin-containing proteins AtBCCP1 ... strongly reduced in the bio4-1 mutant

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

we characterized expression of these genes in the double mutant bio4-1/npr1-1 by RNA gel-blot analysis ... up-regulation of ... PR2 ... was still evident

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

we characterized expression of these genes in the double mutant bio4-1/npr1-1 by RNA gel-blot analysis ... up-regulation of PR1 ... was still evident

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

expression of GST1 was barely altered in the bio4-1/npr1-1 ... indicating that the up-regulation of GST1 expression in bio4-1 is independent of functional NPR1

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

expression of ... PR5 is clearly enhanced in the leaves of the bio4-1 mutant, confirming the results obtained in the microarray

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

we characterized expression of these genes in the double mutant bio4-1/npr1-1 by RNA gel-blot analysis ... up-regulation of ... PR5 was still evident

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

expression of ... PR2 ... is clearly enhanced in the leaves of the bio4-1 mutant, confirming the results obtained in the microarray

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

FSD1 ... mRNA levels did not show any substantial alteration in the bio4-1 mutant

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

expression of PR1 ... is clearly enhanced in the leaves of the bio4-1 mutant, confirming the results obtained in the microarray

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

the constitutive expression of PR1 in bio4-1 was significantly reduced but not completely abolished in bio4-1/NahG plants that are unable to accumulate SA

Li J, Brader G, Helenius E, Kariola T, Palva ET - Biotin deficiency causes spontaneous cell death and activation of defense signaling

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  • Gene expression

SLG1::GUS ... activity was detected in all areas of leaf tissues, including both vascular tissues and inter-vein areas. Expression of GUS was higher in old leaves than in young leaves

Yuan H, Liu D - Functional disruption of the pentatricopeptide protein SLG1 affects mitochondrial RNA editing, plant development, and responses to abiotic stresses in Arabidopsis

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  • Gene expression

SLG1::GUS was expressed throughout the seedling after germination (Figure 5b) and persisted during seedling development

Yuan H, Liu D - Functional disruption of the pentatricopeptide protein SLG1 affects mitochondrial RNA editing, plant development, and responses to abiotic stresses in Arabidopsis

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  • Gene expression

Quantitative real-time PCR analysis showed that the levels of SLG1 mRNA were similar among roots, leaves, stems, and siliques but relatively high in flowers

Yuan H, Liu D - Functional disruption of the pentatricopeptide protein SLG1 affects mitochondrial RNA editing, plant development, and responses to abiotic stresses in Arabidopsis

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  • Gene expression

The TargetP 1.1 program (http://www.cbs.dtu.dk/services/TargetP/) predicted that SLG1 contains a 14-amino-acid signal peptide at its N-terminus for mitochondrial targeting. To experimentally confirm its subcellular localization, we fused the whole SLG1 sequence with a GFP gene. This fusion gene was transiently co-expressed with an mCherry-tagged mitochondrion-specific marker gene (mt-mCherry) under the control of the 35S promoter in Arabidopsis protoplasts (Nelson et al., 2007). The results showed that the green fluorescent signal of SLG1-GFP was co-localized with the red fluorescent signal from the mt-mCherry marker gene (Figure 5c), which provided direct evidence that SLG1 is a mitochondrion-localized protein

Yuan H, Liu D - Functional disruption of the pentatricopeptide protein SLG1 affects mitochondrial RNA editing, plant development, and responses to abiotic stresses in Arabidopsis

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  • Gene expression

we examined the transcript levels of six ND genes and three AOX genes by quantitative real-time PCR. The expression levels of six of nine genes examined in slg1 increased significantly (2- to 20-fold) relative to the WT

Yuan H, Liu D - Functional disruption of the pentatricopeptide protein SLG1 affects mitochondrial RNA editing, plant development, and responses to abiotic stresses in Arabidopsis

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  • Gene expression

we found increased ... CDKA;1 protein levels in the pE2FA::gE2FA–GFP

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

in the CYCD3;1 overexpression line ... elevated levels of ... CDKB1 ... proteins

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

RBR1 ... protein amount increased proportionally to the level of E2FA–GFP

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

RBR1–GFP were abundant in proliferating cells

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

In young leaves ... E2FA–GFP ... were abundant in proliferating cells

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

more E2FA protein was present in the young proliferating leaves (9 DAG ... and it diminished as leaves develop ... 11–16 DAG

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

E2FB ... downregulated ... E2FA silencing line

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

Although we did not detect a significant increase in ... RBR1 transcripts, their protein amount increased proportionally to the level of E2FA–GFP

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

we found increased ... CDKB1;1 ... protein levels in the pE2FA::gE2FA–GFP

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

young leaves ... E2FA–GFP ... detectable in differentiated pavement cells

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

in the CYCD3;1 overexpression ... elevated levels of E2FB ... proteins

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

NULL

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

E2FB level is slightly upregulated in the E2FA/DPA overexpression line

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

ORC2 ... downregulated ... E2FA silencing line

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

In young leaves ... RBR1–GFP ... detectable in differentiated pavement cells

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

reduced CDKB1;1 protein level in the E2FA-RNAi plants

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

RBR1 ... downregulated ... E2FA silencing line

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

in the CYCD3;1 overexpression line ... elevated levels of ... DPA ... proteins

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

the E2FA/DPA overexpression plants showed a strongly upregulated RBR1 amount

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

MCM3 ... downregulated ... E2FA silencing line

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

NULL

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

DPA ... protein amount increased proportionally to the level of E2FA–GFP

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

Although we did not detect a significant increase in DPA ... transcripts, their protein amount increased proportionally to the level of E2FA–GFP

Magyar Z, Horváth B, Khan S, Mohammed B, Henriques R, De Veylder L, Bakó L, Scheres B, Bögre L - Arabidopsis E2FA stimulates proliferation and endocycle separately through RBR-bound and RBR-free complexes

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  • Gene expression

Expression of the NTL4 gene was induced more than twofold by air-drying

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Expression of the NTL4 gene was induced more than fourfold 8 days following the start of drought

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

drought had no effect on on expression of the NTL4 ... in the ABA-deficient aba3-1 mutant ... suggesting that the NTL4-mediated drought stress signals depend on ABA

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

The transcript levels of other Atrboh genes, such as ... AtrbohF ... were slightly altered in 35S:4ΔC transgenic plants and the ntl4-1 mutant under both normal and drought conditions (Figure S6). However, the degrees of alterations were not significant, and the alteration patterns did not match the predicted role of NTL4 in drought stress responses, suggesting that these Atrboh genes are not directly related to NTL4

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

AtrbohC ... The inductive effects of drought on the Atrboh gene expression were diminished in the ntl4-1 mutant

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

we first examined the expression of genes encoding antioxidant metabolic enzymes, such as those encoded by VITAMIN C DEFECTIVE 1 (VTC1) ... They were not much affected in 35S:4ΔC transgenic plants and the ntl4-1 mutant

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

heat treatments

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Expression of the NTL4 gene was induced rapidly in older plants that exhibit symptoms of senescence

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

To further examine the effects of drought on NTL4 gene expression, the GUS coding sequence was fused in-frame to the NTL4 gene promoter comprising approximately 1 kb upstream sequence, and the promoter–GUS fusion was transformed into Col-0 plants. GUS activity was detected mainly in the roots under normal conditions (Figure 2e). When the transgenic plants were exposed to air drying, GUS activity was significantly elevated in the aerial plant parts, primarily in the distal leaf area where the leaf senescence process initiates under adverse growth conditions

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

AtrbohA ... The inductive effects of drought on the Atrboh gene expression were diminished in the ntl4-1 mutant.

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

We also examined the patterns of NTL4 processing in drought-treated plants. The intensity of the processed NTL4 form was markedly increased (Figure 9b), similar to what is observed in ABA-treated plants

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

we first examined the expression of genes encoding antioxidant metabolic enzymes, such as those encoded by ... CADMIUM SENSITIVE 2 (CAD2) ... They were not much affected in 35S:4ΔC transgenic plants and the ntl4-1 mutant

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Ten-day-old 35S:MYC-NTL4 transgenic plants were treated with ABA. Immunological assays revealed that NTL4 processing does not occur to a detectable level in transgenic plants treated with ABA for up to 10 h (Figure S8). In contrast, a protein band with an estimated molecular mass close to the calculated molecular mass of the MYC–4ΔC fusion (10.5 + 46.2 kDa) was detected in plants that were ABA-treated for 24 h (Figure 9a), showing that NTL4 processing is a long-term process. When the plants were treated with the potent proteasome inhibitor MG132, both the full-size and processed NTL4 forms increased, suggesting that the ubiquitin-mediated degradation pathway is responsible for the observed rapid turnover of NTL4 proteins

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Quantitative real-time RT-PCR assays showed that the transcript levels of ... AtrbohE ... more than ninefold higher in 35S:4ΔC transgenic plants than in Col-0 plants under normal conditions (Figure 6d). Under drought conditions, expression of the Atrboh genes was further induced at least twofold in both Col-0 plants and 35S:4ΔC transgenic plants, showing that NTL4-mediated drought stress signals up-regulate a subset of the Atrboh genes

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

The transcript levels of other Atrboh genes, such as ... AtrbohG, were slightly altered in 35S:4ΔC transgenic plants and the ntl4-1 mutant under both normal and drought conditions (Figure S6). However, the degrees of alterations were not significant, and the alteration patterns did not match the predicted role of NTL4 in drought stress responses, suggesting that these Atrboh genes are not directly related to NTL4

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

We found that the SAG12 gene is induced at ... later growth stages in the ntl4-1 mutant

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

drought had no effect on on expression of the ... AtrbohC ... in the ABA-deficient aba3-1 mutant

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

The transcript levels of other Atrboh genes, such as AtrbohB ... were slightly altered in 35S:4ΔC transgenic plants and the ntl4-1 mutant under both normal and drought conditions (Figure S6). However, the degrees of alterations were not significant, and the alteration patterns did not match the predicted role of NTL4 in drought stress responses, suggesting that these Atrboh genes are not directly related to NTL4

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Quantitative real-time RT-PCR assays showed that the transcript levels of ... AtrbohC ... more than ninefold higher in 35S:4ΔC transgenic plants than in Col-0 plants under normal conditions (Figure 6d). Under drought conditions, expression of the Atrboh genes was further induced at least twofold in both Col-0 plants and 35S:4ΔC transgenic plants, showing that NTL4-mediated drought stress signals up-regulate a subset of the Atrboh genes

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Quantitative real-time RT-PCR assays showed that the transcript levels of AtrbohA ... more than ninefold higher in 35S:4ΔC transgenic plants than in Col-0 plants under normal conditions (Figure 6d). Under drought conditions, expression of the Atrboh genes was further induced at least twofold in both Col-0 plants and 35S:4ΔC transgenic plants, showing that NTL4-mediated drought stress signals up-regulate a subset of the Atrboh genes

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Cell fractionation assays revealed that the NTL4 protein is mostly associated with microsomal fractions (Figure S7), consistent with localization of the NTL4 protein in the plasma membranes

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

The transcript levels of other Atrboh genes, such as ... AtrbohD ... were slightly altered in 35S:4ΔC transgenic plants and the ntl4-1 mutant under both normal and drought conditions (Figure S6). However, the degrees of alterations were not significant, and the alteration patterns did not match the predicted role of NTL4 in drought stress responses, suggesting that these Atrboh genes are not directly related to NTL4

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

AtrbohE ... The inductive effects of drought on the Atrboh gene expression were diminished in the ntl4-1 mutant

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Expression of the NTL4 gene was induced approximately threefold by ABA

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

We found that the SAG12 gene is induced at earlier growth stages in 35S:4ΔC transgenic plants

Lee S, Seo PJ, Lee HJ, Park CM - Accelerated cell death 2 suppresses mitochondrial oxidative bursts and modulates cell death in Arabidopsis

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  • Gene expression

Therefore, to explore the molecular phenotype of the rrc1 mutants, we examined whether the splicing patterns of the SR protein genes were affected in the ΔRS alleles (rrc1-2 and rrc1-3) and the null allele (rrc1-4) by RT-PCR analysis. Indeed, all of these rrc1 alleles displayed aberrant alternative splicing of several of the SR protein genes, i.e ... RS40

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

Therefore, to explore the molecular phenotype of the rrc1 mutants, we examined whether the splicing patterns of the SR protein genes were affected in the ΔRS alleles (rrc1-2 and rrc1-3) and the null allele (rrc1-4) by RT-PCR analysis. Indeed, all of these rrc1 alleles displayed aberrant alternative splicing of several of the SR protein genes, i.e ... RS31

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

RRC1 ... expressed in all of the organs examined

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

To link the molecular function of RRC1 to phyB signaling, we investigated whether phyB controls the alternative splicing of the SR protein genes that were affected in the rrc1 mutants. For each SR protein gene, we quantified the absolute mass of each splice variant in the RT-PCR analysis, and determined the time course of alterations in the ratio of splice variants to the total mass of the transcripts after transition from dark to cR conditions. We confirmed that the calculated ratio of splice variants in the same sample was constant over the number of PCR cycles used in this assay ... SR34b ... exhibited transient alterations in their splicing patterns in response to cR irradiation, and the response was significantly reduced in ... rrc1-3

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

Therefore, to explore the molecular phenotype of the rrc1 mutants, we examined whether the splicing patterns of the SR protein genes were affected in the ΔRS alleles (rrc1-2 and rrc1-3) and the null allele (rrc1-4) by RT-PCR analysis. Indeed, all of these rrc1 alleles displayed aberrant alternative splicing of several of the SR protein genes, i.e ... SR34b

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

we performed RT-PCR analysis on these PIF genes in the wild-type and rrc1 mutant plants, and found that the ratio of the minor variant mRNA-1 of PIF6 to the total amount of PIF6 transcript was increased in the rrc1 mutants (Figure S8). However, because it has been reported that overexpression of this minor variant of PIF6 enhances responses to cR in transgenic Arabidopsis plants (Penfield et al., 2010), it is unlikely that the splicing defects in PIF6 contribute to the reduced light responses in the rrc1 mutants

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

To link the molecular function of RRC1 to phyB signaling, we investigated whether phyB controls the alternative splicing of the SR protein genes that were affected in the rrc1 mutants. For each SR protein gene, we quantified the absolute mass of each splice variant in the RT-PCR analysis, and determined the time course of alterations in the ratio of splice variants to the total mass of the transcripts after transition from dark to cR conditions. We confirmed that the calculated ratio of splice variants in the same sample was constant over the number of PCR cycles used in this assay ... RS31 ... exhibited transient alterations in their splicing patterns in response to cR irradiation, and the response was significantly reduced in the phyB

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

by using a quantitative RT-PCR analysis, we examined the effects of the rrc1-2 or rrc1-3 mutations on the ability of the phyB molecule to induce the expression of four phyB-dependent, early-response genes ... The quantitative RT-PCR data showed that, in both of the rrc1 alleles ... DREB1A, exhibited a reduction in phyB-dependent, cR-induced expression

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

To link the molecular function of RRC1 to phyB signaling, we investigated whether phyB controls the alternative splicing of the SR protein genes that were affected in the rrc1 mutants. For each SR protein gene, we quantified the absolute mass of each splice variant in the RT-PCR analysis, and determined the time course of alterations in the ratio of splice variants to the total mass of the transcripts after transition from dark to cR conditions. We confirmed that the calculated ratio of splice variants in the same sample was constant over the number of PCR cycles used in this assay ... SR34b ... exhibited transient alterations in their splicing patterns in response to cR irradiation, and the response was significantly reduced in the phyB

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

in order to examine the intracellular localization of phyB, we introduced phyB-GFP into the rrc1-3 phyB-9 double mutant by crossing, and observed the resulting GFP fluorescence by confocal microscopy. As previously reported (Kircher et al., 1999; Yamaguchi et al., 1999), phyB-GFP accumulated in the nucleus and formed NBs under cW, not only in the phyB-9 single mutant but also in the rrc1-3 phyB-9 double mutant background (Figure 8a). These results indicate that the rrc1-3 mutation did not affect the subcellular localization of phyB under cW

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

To link the molecular function of RRC1 to phyB signaling, we investigated whether phyB controls the alternative splicing of the SR protein genes that were affected in the rrc1 mutants. For each SR protein gene, we quantified the absolute mass of each splice variant in the RT-PCR analysis, and determined the time course of alterations in the ratio of splice variants to the total mass of the transcripts after transition from dark to cR conditions. We confirmed that the calculated ratio of splice variants in the same sample was constant over the number of PCR cycles used in this assay ... RS31 ... exhibited transient alterations in their splicing patterns in response to cR irradiation, and the response was significantly reduced in ... rrc1-3

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

We used an anti-FLAG antibody to investigate the intracellular localization of RRC1-FLAG (Figure 2) that was overexpressed in the Arabidopsis wild-type background, and found that RRC1-FLAG localized to the nucleus and formed speckles

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

by using a quantitative RT-PCR analysis, we examined the effects of the rrc1-2 or rrc1-3 mutations on the ability of the phyB molecule to induce the expression of four phyB-dependent, early-response genes ... At5g25120 ... expression ... appeared to be up-regulated

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

Therefore, to explore the molecular phenotype of the rrc1 mutants, we examined whether the splicing patterns of the SR protein genes were affected in the ΔRS alleles (rrc1-2 and rrc1-3) and the null allele (rrc1-4) by RT-PCR analysis. Indeed, all of these rrc1 alleles displayed aberrant alternative splicing of several of the SR protein genes, i.e. SR34

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

We investigated which step of phyB signal transduction was altered in the ΔRS alleles rrc1-2 and rrc1-3. We first sequenced the mRNA of PHYB in rrc1-2 and rrc1-3, and did not find any alterations compared with the wild-type sequence

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

To test the possibility that phyB and RRC1 function in the same subnuclear compartment, we examined their colocalization in transgenic Arabidopsis plants expressing both RRC1-FLAG and the fusion protein of phyB and GFP (phyB-GFP), which has been shown to be biologically functional in vivo (Yamaguchi et al., 1999). Although, under cR, a fraction of each fusion protein localized in the vicinity of the other in the nucleus, RRC1-FLAG speckles and phyB-GFP NBs were not completely overlapping, at least not under the conditions examined here

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

At5g10800 ... expressed in all of the organs examined

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

To test the possibility that phyB and RRC1 function in the same subnuclear compartment, we examined their colocalization in transgenic Arabidopsis plants expressing both RRC1-FLAG and the fusion protein of phyB and GFP (phyB-GFP), which has been shown to be biologically functional in vivo (Yamaguchi et al., 1999). Although, under cR, a fraction of each fusion protein localized in the vicinity of the other in the nucleus, RRC1-FLAG speckles and phyB-GFP NBs were not completely overlapping, at least not under the conditions examined here

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

we also generated a transgenic line in the Arabidopsis wild-type background that expressed RRC1 fused to green fluorescent protein (GFP) (RRC1-GFP) under the control of the constitutive CaMV 35S promoter. Confocal microscopy analysis of GFP fluorescence confirmed that the protein localized to the nucleus and showed the speckled distribution

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

by using a quantitative RT-PCR analysis, we examined the effects of the rrc1-2 or rrc1-3 mutations on the ability of the phyB molecule to induce the expression of four phyB-dependent, early-response genes ... PRR9 ... expression ... appeared to be up-regulated

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

Therefore, to explore the molecular phenotype of the rrc1 mutants, we examined whether the splicing patterns of the SR protein genes were affected in the ΔRS alleles (rrc1-2 and rrc1-3) and the null allele (rrc1-4) by RT-PCR analysis. Indeed, all of these rrc1 alleles displayed aberrant alternative splicing of several of the SR protein genes, i.e ... RS31a

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

by using a quantitative RT-PCR analysis, we examined the effects of the rrc1-2 or rrc1-3 mutations on the ability of the phyB molecule to induce the expression of four phyB-dependent, early-response genes ... PRR5 ... expression ... appeared to be up-regulated

Shikata H, Shibata M, Ushijima T, Nakashima M, Kong SG, Matsuoka K, Lin C, Matsushita - The RS domain of Arabidopsis splicing factor RRC1 is required for phytochrome B signal transduction

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  • Gene expression

evaluating the relative abundance of their mRNAs in wild-type and AACT2i-1 plants by quantitative RT-PCR ... expression of FPS1 (At5g47770 ... was reduced

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

mature organs, fully expanded leaves, mature siliques, flowers and stems of the first internode exhibited less AACT2 promoter-driven GUS activity

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

AACT1 promoter-driven GUS expression is primarily concentrated in the vascular system of various organs ... including ... cotyledons, but not in young initiating leaves

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

Western blot analysis of extracts prepared from various organs demonstrated the accumulation pattern of the two AACT proteins (Figure 3). With the exception of roots, in which both proteins accumulate at similar levels, the expression level of AACT2 is considerably higher than that of AACT1 in leaves, stems, inflorescences and siliques

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

evaluating the relative abundance of their mRNAs in wild-type and AACT2i-1 plants by quantitative RT-PCR ... expression of HMG1 (At1g76490), which is considered a key controlling step this pathway, was not significantly altered

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

Western blot analysis of extracts prepared from various organs demonstrated the accumulation pattern of the two AACT proteins (Figure 3). With the exception of roots, in which both proteins accumulate at similar levels, the expression level of AACT2 is considerably higher than that of AACT1 in leaves, stems, inflorescences and siliques

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

evaluating the relative abundance of their mRNAs in wild-type and AACT2i-1 plants by quantitative RT-PCR ... expression of ... SMT2 (At1g20330 ... was reduced

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

AACT1 promoter-driven ... GUS activity was clearly detected in the vascular system of young leaves, fully expanded leaves

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

AACT2 promoter-driven ... GUS activity was observed in new emerging leaves of seedlings

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

In addition, the AACT2 protein level is decreased by 24% when plants are deprived of illumination for a 2-day period, compared with those maintained under constant illumination (Figure 3a)

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

evaluating the relative abundance of their mRNAs in wild-type and AACT2i-1 plants by quantitative RT-PCR ... expression of ... FPS2 (At4g17190 ... was reduced

Jin H, Song Z, Nikolau BJ - Reverse genetic characterization of two paralogous acetoacetyl CoA thiolase genes in Arabidopsis reveals their importance in plant growth and development

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  • Gene expression

Using gene-specific primers from SAUR19–24 UTR regions and RNA prepared from whole seedlings, our quantitative RT-PCR analysis detected a two- to three-fold up-regulation of all six SAUR19–24 family members following a 30-min auxin treatment (Figure 1). While auxin-inducible expression of the SAUR19–24 family members was relatively modest compared to the strongly auxin-inducible IAA5 gene, tissue-specific increases in expression were observed with SAUR19–24 promoter-GUS reporters in some instances

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Upon examining light-grown GFP–SAUR seedlings by confocal microscopy, we were surprised to find GFP fusions to SAUR ... 24 ... localized primarily to the cell surface, suggesting association with the plasma membrane

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

SAUR19 localizes primarily to the plasma membrane. Confocal images of 35S:GFP–SAUR19 fluorescence in ... leaf epidermal cells

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Using gene-specific primers from SAUR19–24 UTR regions and RNA prepared from whole seedlings, our quantitative RT-PCR analysis detected a two- to three-fold up-regulation of all six SAUR19–24 family members following a 30-min auxin treatment (Figure 1). While auxin-inducible expression of the SAUR19–24 family members was relatively modest compared to the strongly auxin-inducible IAA5 gene, tissue-specific increases in expression were observed with SAUR19–24 promoter-GUS reporters in some instances

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Upon examining light-grown GFP–SAUR seedlings by confocal microscopy, we were surprised to find GFP fusions to SAUR ... 21 ... localized primarily to the cell surface, suggesting association with the plasma membrane

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

To examine auxin-induced gene expression, we crossed the DR5-GUS reporter into plants harboring the GFP–SAUR19 transgene. While the overall pattern of GUS expression was not noticeably altered by the expression of the SAUR transgene, we consistently detected a slight reduction in the intensity of DR5-GUS staining following short inductions with auxin

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Microsomal fractionation studies confirmed that the GFP–SAUR19 protein is membrane associated (Figure 7d). To confirm that the membrane association observed with the GFP–SAUR19 fusion protein was not an artifact of the GFP tag, we examined the fractionation of untagged SAUR19 as well as the StrepII–SAUR19 fusion protein. Consistent with our GFP–SAUR19 findings, the untagged and StrepII-tagged SAUR19 derivatives were also highly enriched in microsomal pellets (Figure 7d). To confirm that membrane association was with plasma membranes as suggested by our microscopy studies, microsomal fractions were subjected to two-phase partitioning assays. The GFP–SAUR19 protein was highly enriched in plasma membrane-enriched fractions, whereas the endoplasmic reticulum-associated SEC12 protein was found predominantly in the ‘other membrane’ fraction (Figure 7e). Consistent with the lack of a predicted transmembrane spanning domain in the SAUR19 sequence, GFP–SAUR19 could be extracted from membrane fractions with high-pH buffer, indicating that SAUR19 is a peripheral rather than an integral membrane protein

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Upon examining light-grown GFP–SAUR seedlings by confocal microscopy, we were surprised to find GFP fusions to SAUR ... 23 ... localized primarily to the cell surface, suggesting association with the plasma membrane

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Using gene-specific primers from SAUR19–24 UTR regions and RNA prepared from whole seedlings, our quantitative RT-PCR analysis detected a two- to three-fold up-regulation of all six SAUR19–24 family members following a 30-min auxin treatment (Figure 1). While auxin-inducible expression of the SAUR19–24 family members was relatively modest compared to the strongly auxin-inducible IAA5 gene, tissue-specific increases in expression were observed with SAUR19–24 promoter-GUS reporters in some instances

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

SAUR19 ... rapidly induced by auxin ... in wild-type seedlings following a 30-min treatment with 0.35 μm indole-3-acetic acid (IAA

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Using gene-specific primers from SAUR19–24 UTR regions and RNA prepared from whole seedlings, our quantitative RT-PCR analysis detected a two- to three-fold up-regulation of all six SAUR19–24 family members following a 30-min auxin treatment (Figure 1). While auxin-inducible expression of the SAUR19–24 family members was relatively modest compared to the strongly auxin-inducible IAA5 gene, tissue-specific increases in expression were observed with SAUR19–24 promoter-GUS reporters in some instances

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Using gene-specific primers from SAUR19–24 UTR regions and RNA prepared from whole seedlings, our quantitative RT-PCR analysis detected a two- to three-fold up-regulation of all six SAUR19–24 family members following a 30-min auxin treatment (Figure 1). While auxin-inducible expression of the SAUR19–24 family members was relatively modest compared to the strongly auxin-inducible IAA5 gene, tissue-specific increases in expression were observed with SAUR19–24 promoter-GUS reporters in some instances

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Using gene-specific primers from SAUR19–24 UTR regions and RNA prepared from whole seedlings, our quantitative RT-PCR analysis detected a two- to three-fold up-regulation of all six SAUR19–24 family members following a 30-min auxin treatment (Figure 1). While auxin-inducible expression of the SAUR19–24 family members was relatively modest compared to the strongly auxin-inducible IAA5 gene, tissue-specific increases in expression were observed with SAUR19–24 promoter-GUS reporters in some instances

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Upon examining light-grown GFP–SAUR seedlings by confocal microscopy, we were surprised to find GFP fusions to SAUR19 ... localized primarily to the cell surface, suggesting association with the plasma membrane

Spartz AK, Lee SH, Wenger JP, Gonzalez N, Itoh H, Inzé D, Peer WA, Murphy AS, Overvoorde PJ, Gray WM - The SAUR19 subfamily of SMALL AUXIN UP RNA genes promote cell expansion

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  • Gene expression

Quantitative RT-PCR analysis revealed down-regulation of ROX mRNA levels in vegetative las-4 shoot apices compared to wild-type

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

monitoring of ROX transcript accumulation in rax1 mutant backgrounds revealed strong down-regulation during the vegetative stage of development. A total of 28 rax1 mutant (rax1-3 or rax1-3 rax2-1 rax3-1) apices were analyzed in nine independent in situ hybridization experiments. Strong ROX hybridization signals were observed in sections from Col wild-type apices, but ROX transcripts were not detectable in most rax1-3 and rax1-3 rax2-1 rax3-1 mutant apices (Figure 6e,g). Only on four sections from three apices of rax1-3 plants and rax1-3 rax2-1 rax3-1 triple mutants were very faint hybridization signals found in the leaf axils

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

In situ hybridization experiments detected ROX transcripts in the expected domains in sections of vegetative apices of the Col wild-type (Figure 6a), but they were barely detectable in vegetative las-4 apices ... This result was verified by hybridizing comparable sections from wild-type and las-4 apices side by side on the same slide. A total of eight independent hybridizations with 16 individual las-4 shoot apices did not reveal a ROX hybridization signal, except in two sections from one apex, which showed a faint signal

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

To investigate the expression pattern of ROX, we performed RNA in situ hybridizations on tissue sections from Col wild-type plants ... Transverse sections (Figure 4f–j) revealed that ROX mRNA accumulated in a circular domain at the center of the boundary region between the shoot apical meristem and young leaf primordia

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

The pattern of LAS transcript accumulation in vegetative rox-1 shoot apices was similar to that in the wild-type

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

the cellular distribution of RAX1 transcripts in vegetative rox-1 shoot apices was comparable to that observed in the Col wild-type

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

To investigate the expression pattern of ROX, we performed RNA in situ hybridizations on tissue sections from Col wild-type plants ... During vegetative development, ROX transcripts accumulated at the adaxial boundary of leaf primordia, including cells in the L3 layer and below, and frequently excluding cells of the L1 layer, or L1 and L2 layers, of the shoot apex

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

To investigate the expression pattern of ROX, we performed RNA in situ hybridizations on tissue sections from Col wild-type plants ... ROX mRNA was transiently detected from P0 to approximately P10/P13, before the first indication of AM formation

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

A comparable reduction of ROX transcript accumulation was observed in vegetative apices of rax1-3 las-4 double mutants

Yang F, Wang Q, Schmitz G, Müller D, Theres K - The bHLH protein ROX acts in concert with RAX1 and LAS to modulate axillary meristem formation in Arabidopsis

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  • Gene expression

In addition, the expression of FIL was restricted to the abaxial region of the as2-1 leaf primordia (Figure 8H) but was detected in the entire region of the prs wox1 as2-1 leaf primordia (Figure 8I), indicating that the filamentous leaves of prs wox1 as2 are severely abaxialized

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To reveal whether FIL/YAB genes upregulate the expression of PRS and WOX1, we examined the expression levels of PRS and WOX1 in fil yab3 and fil yab3 yab5. The expression level of WOX1 in these mutants was approximately half of that in the wild type, whereas the expression level of PRS in the mutants was the same as in the wild type (Figure 6A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

No WOX1 signal was detected in the SAM

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To investigate whether the KAN1 protein directly or indirectly represses PRS and WOX1, we analyzed the effect of dexamethasone (DEX)–inducible expression of a 35Spro:KAN1:glucocorticoid receptor (GR) line, the hormone binding domain of the GR fused to the C terminus of KAN1 under the control of the 35S promoter (Hawker and Bowman, 2004), on the expression of PRS and WOX1. Exposure to DEX for 6 h drastically reduced the amounts of both PRS and WOX1 transcripts

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

In P3 leaf primordia, KAN1 expression was restricted to a narrow region on the abaxial side and was absent from the cells neighboring the leaf edge (Figure 6D ... After the P4 stage, KAN1 signal was detected in two cell layers of the six-cell-layered region on the abaxial side (Figure 6D

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Similar to FILpro:WOX1 transgenic plants, the kan1 kan2 double mutant has been reported to have adventitious outgrowths and ectopic margin-like structures on the abaxial sides of leaves (Eshed et al., 2001, 2004). However, it has been reported that KAN1 expression is not significantly altered in prs wox1 (Vandenbussche et al., 2009), and we found that the expression of KAN1 and KAN2 did not decrease in FILpro:WOX1 (Figure 2H), suggesting that PRS and WOX1 do not repress KAN expression. Therefore, we investigated whether the expression of PRS and/or WOX1 is affected in kan1 kan2. The expression levels of PRS and WOX1 in kan1 kan2 were approximately twofold and fivefold of those of the wild type, respectively (Figure 6A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, to understand better the roles of PRS and WOX1 in margin development, we examined expression patterns in the KLUH (KLU)pro:vYFPer line (vYFPer is an endoplasmic reticulum–localized VENUS–YFP ... The KLUpro:vYFPer signal was absent from the margin of the leaf blade in the prs wox1 background

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

After the P4 stage, strong WOX1 expression was detected in the two middle mesophyll layers of the six-cell-layered blade region and in the margin cells

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To investigate whether the KAN1 protein directly or indirectly represses PRS and WOX1, we analyzed the effect of dexamethasone (DEX)–inducible expression of a 35Spro:KAN1:glucocorticoid receptor (GR) line, the hormone binding domain of the GR fused to the C terminus of KAN1 under the control of the 35S promoter (Hawker and Bowman, 2004), on the expression of PRS and WOX1 ... In contrast with WOX1, following exposure to DEX with CHX, PRS expression levels were only slightly reduced

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

ISH analyses revealed the expanded accumulation of PRS and WOX1 transcripts in the abaxial region of the kan1 kan2 leaf primordia (Figures 6B and 6C

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The expression levels of abaxial-specific genes (FIL, KAN1, and KAN2) in the FILpro:WOX1 lines were comparable to those in the wild-type or FILpro:GUS lines

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The FIL expression in the prs wox1 leaf primordia was indistinguishable from that in the wild type at the P3 stage, but unlike the wild type, it was detected in a broader region of P4-P6 leaf primordia, including the lateral region of the adaxial side (Figure 5A). After the P7 stage, FIL expression was restricted to three cell layers of the blade, resembling the wild-type expression pattern, but it was also detected in the adaxial epidermis neighboring the margin (Figure 5A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The expression levels of abaxial-specific genes (FIL, KAN1, and KAN2) in the FILpro:WOX1 lines were comparable to those in the wild-type or FILpro:GUS lines

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To investigate whether the KAN1 protein directly or indirectly represses PRS and WOX1, we analyzed the effect of dexamethasone (DEX)–inducible expression of a 35Spro:KAN1:glucocorticoid receptor (GR) line, the hormone binding domain of the GR fused to the C terminus of KAN1 under the control of the 35S promoter (Hawker and Bowman, 2004), on the expression of PRS and WOX1 ... Exposure to DEX in the presence of cycloheximide (CHX; an inhibitor of protein biosynthesis) led to a substantial reduction in the expression levels of WOX1, although the repression was stronger in the absence of CHX

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The abaxial-specific gene FIL is expressed in P3-P6 leaf primordia of the wild type in the broad region of the abaxial side, including the margin and four cell layers of the six-cell-layered blade on the abaxial side (Figure 5A). After the P7 stage, FIL expression was restricted to three cell layers of the abaxial side (Figure 5A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, to understand better the roles of PRS and WOX1 in margin development, we examined expression patterns in the KLUH (KLU)pro:vYFPer line (vYFPer is an endoplasmic reticulum–localized VENUS–YFP) (Adamski et al., 2009) as a margin marker. The leaf primordia of KLUpro:vYFPer plants showed YFP fluorescence at the blade margins

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The AS2 expression pattern in prs wox1 was indistinguishable from that of the wild type in P3 leaf primordia, but ectopic expression was detected in the margin cells of P4-P6 leaf primordia and in abaxial epidermal cells of the lateral leaf regions after the P7 stage

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The expression levels of abaxial-specific genes (FIL, KAN1, and KAN2) in the FILpro:WOX1 lines were comparable to those in the wild-type or FILpro:GUS lines

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To reveal whether FIL/YAB genes upregulate the expression of PRS and WOX1, we examined the expression levels of PRS and WOX1 in fil yab3 and fil yab3 yab5. The expression level of WOX1 in these mutants was approximately half of that in the wild type, whereas the expression level of PRS in the mutants was the same as in the wild type (Figure 6A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, we analyzed whether PRS and WOX1 affect the expression of the adaxial- and abaxial-specific genes. AS2 expression in wild-type leaf primordia was detected in adaxial epidermal cells and rarely in adaxial subepidermal cells but was not detected at the margin and on the abaxial side

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To reveal whether FIL/YAB genes upregulate the expression of PRS and WOX1, we examined the expression levels of PRS and WOX1 in fil yab3 and fil yab3 yab5. The expression level of WOX1 in these mutants was approximately half of that in the wild type, whereas the expression level of PRS in the mutants was the same as in the wild type (Figure 6A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To reveal whether FIL/YAB genes upregulate the expression of PRS and WOX1, we examined the expression levels of PRS and WOX1 in fil yab3 and fil yab3 yab5. The expression level of WOX1 in these mutants was approximately half of that in the wild type, whereas the expression level of PRS in the mutants was the same as in the wild type (Figure 6A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Consistent with the distribution of the trichomes, AS2 expression was detected only on the adaxial side in the kan1 kan2 leaf primordia (Figure 7G) but in the entire region of the epidermis in the prs wox1 kan1 kan2 leaf primordia (Figure 7H

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

We also analyzed the phenotypes of the FILpro:PRS plants ... despite the increased ... expression of PRS

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Similar to FILpro:WOX1 transgenic plants, the kan1 kan2 double mutant has been reported to have adventitious outgrowths and ectopic margin-like structures on the abaxial sides of leaves (Eshed et al., 2001, 2004). However, it has been reported that KAN1 expression is not significantly altered in prs wox1 (Vandenbussche et al., 2009), and we found that the expression of KAN1 and KAN2 did not decrease in FILpro:WOX1 (Figure 2H), suggesting that PRS and WOX1 do not repress KAN expression. Therefore, we investigated whether the expression of PRS and/or WOX1 is affected in kan1 kan2. The expression levels of PRS and WOX1 in kan1 kan2 were approximately twofold and fivefold of those of the wild type, respectively (Figure 6A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The HD-ZIPIII family genes are adaxially expressed in leaf primordia (McConnell et al., 2001). The microRNA miR165/166 is reported to repress the expression of the HD-ZIPIII family genes (Mallory et al., 2004). To investigate whether mutations of the WOX genes affect the pattern of HD-ZIPIII expression via the regulation of miR165/166, we analyzed the expression pattern of the 35Spro:miYFP-W line, in which miR165/166 function can be monitored by a reduction of YFP fluorescence (Toyokura et al., 2011). YFP fluorescence of 35Spro:miYFP-W in the wild type was detected only in the two cell layers of the adaxial side of the leaf primordia (Figure 5C). In prs wox1, YFP fluorescence was further limited to the medial region of the adaxial side (Figure 5C

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, to understand better the roles of PRS and WOX1 in margin development, we examined expression patterns in the KLUH (KLU)pro:vYFPer line (vYFPer is an endoplasmic reticulum–localized VENUS–YFP ... In FILpro:WOX1, the YFP signal was observed in the abaxial region of leaf primordia (Figure 3H; see Supplemental Figure 5A online), including the abaxial outgrowths (Supplemental Figures 5A and 5C online), in addition to the leaf base and margin

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, we analyzed whether PRS and WOX1 affect the expression of the adaxial- and abaxial-specific genes. AS2 expression in wild-type leaf primordia was detected in adaxial epidermal cells and rarely in adaxial subepidermal cells but was not detected at the margin and on the abaxial side

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

in situ hybridization ... ISH) targeting HISTONE H4 ... prs wox1 leaf primordia ... were significantly fewer than those in wild-type leaf primordia

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Consistent with the distribution of the trichomes, AS2 expression was detected only on the adaxial side in the kan1 kan2 leaf primordia (Figure 7G) but in the entire region of the epidermis in the prs wox1 kan1 kan2 leaf primordia (Figure 7H

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

No WOX1 signal was detected in ... P1-P2 leaf ... primordia

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, to understand better the roles of PRS and WOX1 in margin development, we examined expression patterns in the KLUH (KLU)pro:vYFPer line (vYFPer is an endoplasmic reticulum–localized VENUS–YFP ... In FILpro:WOX1, the YFP signal was observed in the abaxial region of leaf primordia (Figure 3H; see Supplemental Figure 5A online), including the abaxial outgrowths (Supplemental Figures 5A and 5C online

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

We also found PRS expression in the two middle mesophyll layers of the blade in P4-P6 leaf primordia

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, to understand better the roles of PRS and WOX1 in margin development, we examined expression patterns in the KLUH (KLU)pro:vYFPer line (vYFPer is an endoplasmic reticulum–localized VENUS–YFP ... The KLUpro:vYFPer signal was absent from the margin of the leaf blade in the prs wox1 background (Figure 3H; see Supplemental Figure 5A online) but persisted in the leaf base

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The AS2 expression pattern in prs wox1 was indistinguishable from that of the wild type in P3 leaf primordia, but ectopic expression was detected in the margin cells of P4-P6 leaf primordia and in abaxial epidermal cells of the lateral leaf regions after the P7 stage

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The abaxial-specific gene FIL is expressed in P3-P6 leaf primordia of the wild type in the broad region of the abaxial side, including the margin and four cell layers of the six-cell-layered blade on the abaxial side (Figure 5A). After the P7 stage, FIL expression was restricted to three cell layers of the abaxial side (Figure 5A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

In P3 leaf primordia, WOX1 expression was detected in a few cells located in an area spanning the leaf edge and approximately three cell layers deep

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The FIL expression in the prs wox1 leaf primordia was indistinguishable from that in the wild type at the P3 stage, but unlike the wild type, it was detected in a broader region of P4-P6 leaf primordia, including the lateral region of the adaxial side (Figure 5A). After the P7 stage, FIL expression was restricted to three cell layers of the blade, resembling the wild-type expression pattern, but it was also detected in the adaxial epidermis neighboring the margin (Figure 5A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

In addition, the expression of FIL was restricted to the abaxial region of the as2-1 leaf primordia (Figure 8H) but was detected in the entire region of the prs wox1 as2-1 leaf primordia (Figure 8I), indicating that the filamentous leaves of prs wox1 as2 are severely abaxialized

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, to understand better the roles of PRS and WOX1 in margin development, we examined expression patterns in the KLUH (KLU)pro:vYFPer line (vYFPer is an endoplasmic reticulum–localized VENUS–YFP ... In FILpro:WOX1, the YFP signal was observed in the abaxial region of leaf primordia (Figure 3H; see Supplemental Figure 5A online), including the abaxial outgrowths (Supplemental Figures 5A and 5C online), in addition to the leaf base

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The HD-ZIPIII family genes are adaxially expressed in leaf primordia (McConnell et al., 2001). The microRNA miR165/166 is reported to repress the expression of the HD-ZIPIII family genes (Mallory et al., 2004). To investigate whether mutations of the WOX genes affect the pattern of HD-ZIPIII expression via the regulation of miR165/166, we analyzed the expression pattern of the 35Spro:miYFP-W line, in which miR165/166 function can be monitored by a reduction of YFP fluorescence (Toyokura et al., 2011). YFP fluorescence of 35Spro:miYFP-W in the wild type was detected only in the two cell layers of the adaxial side of the leaf primordia (Figure 5C

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

ISH analyses revealed the expanded accumulation of PRS and WOX1 transcripts in the abaxial region of the kan1 kan2 leaf primordia (Figures 6B and 6C

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The FIL expression in the prs wox1 leaf primordia was indistinguishable from that in the wild type at the P3 stage, but unlike the wild type, it was detected in a broader region of P4-P6 leaf primordia, including the lateral region of the adaxial side (Figure 5A). After the P7 stage, FIL expression was restricted to three cell layers of the blade, resembling the wild-type expression pattern, but it was also detected in the adaxial epidermis neighboring the margin (Figure 5A

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

PRS was expressed in the margin cells of the leaf primordia beginning at the P1 stage

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

in prs wox1 ... the frequency of H4-positive cells in the lateral region decreased to the same level as in the medial region

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

In P3 leaf primordia ... expression was ... detected in a few cells located in an area spanning the leaf edge and approximately three cell layers deep ... similar to PRS ... expression

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

The AS2 expression pattern in prs wox1 was indistinguishable from that of the wild type in P3 leaf primordia, but ectopic expression was detected in the margin cells of P4-P6 leaf primordia and in abaxial epidermal cells of the lateral leaf regions after the P7 stage ...

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To investigate whether the KAN1 protein directly or indirectly represses PRS and WOX1, we analyzed the effect of dexamethasone (DEX)–inducible expression of a 35Spro:KAN1:glucocorticoid receptor (GR) line, the hormone binding domain of the GR fused to the C terminus of KAN1 under the control of the 35S promoter (Hawker and Bowman, 2004), on the expression of PRS and WOX1. Exposure to DEX for 6 h drastically reduced the amounts of both PRS and WOX1 transcripts

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

We found that WOX1 mRNA levels in FILpro:WOX1 plants with aberrant leaves increased to approximately fourfold or fivefold of those of the wild-type or FILpro:GUS control plants

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

Next, to understand better the roles of PRS and WOX1 in margin development, we examined expression patterns in the KLUH (KLU)pro:vYFPer line (vYFPer is an endoplasmic reticulum–localized VENUS–YFP) (Adamski et al., 2009) as a margin marker. The leaf primordia of KLUpro:vYFPer plants showed YFP fluorescence at the blade margins (Figure 3H; see Supplemental Figure 5A online) and leaf bases

Nakata M, Matsumoto N, Tsugeki R, Rikirsch E, Laux T, Okada K - Roles of the middle domain-specific WUSCHEL-RELATED HOMEOBOX genes in early development of leaves in Arabidopsis

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  • Gene expression

To further examine the spatiotemporal expression pattern of BP, we introduced a reporter construct composed of the promoter region of BP and the cDNA encoding the GUS reporter ... The level of GUS expression was analyzed by measurement of GUS histochemical activity ... Consistent with a previous report (Ori et al., 2000), GUS activity was detected in petioles or the proximal part of midveins in as2-1 leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of BP ... were ... elevated in the ... jaw-D single mutant leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of ... KNAT6 were ... further increased in the as2-1 jaw-D double mutant rosette ... leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of ... KNAT2 ... were ... further increased in the as2-1 jaw-D double mutant rosette ... leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of ... KNAT6 were ... elevated in the as2-1 ... single mutant leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of ... KNAT2 ... were ... elevated in the ... jaw-D single mutant leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of ... KNAT2 ... were ... elevated in the as2-1 ... mutant leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

To further examine the spatiotemporal expression pattern of BP, we introduced a reporter construct composed of the promoter region of BP and the cDNA encoding the GUS reporter ... The level of GUS expression was analyzed by measurement of GUS histochemical activity ... in as2-1 jaw-D plants GUS activity was expanded to more distal regions, and the stronger GUS staining was visible in the as2-1 jaw-D double mutant than in the as2-1 single mutant leaves (Figure 4e). In addition, the apex of the leaf protrusions (Figure 4f) and the junction between the leaf and ectopic shoot (Figure 4g) were also stained deeply in the double mutant

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

To further examine the spatiotemporal expression pattern of BP, we introduced a reporter construct composed of the promoter region of BP and the cDNA encoding the GUS reporter ... The level of GUS expression was analyzed by measurement of GUS histochemical activity ... GUS activity was also barely detected in the jaw-D leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of BP ... were ... elevated in the as2-1 ... mutant leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of ... KNAT6 were ... elevated in the ... jaw-D single mutant leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

transcript levels of BP ... were ... further increased in the as2-1 jaw-D double mutant rosette ... leaves

Li Z, Li B, Shen WH, Huang H, Dong A - TCP transcription factors interact with AS2 in the repression of class-I KNOX genes in Arabidopsis thaliana

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  • Gene expression

Consistent with the real-time RT-PCR results, we could not detect CLV3 mRNA in meristems of 7-day-old ant-4 ail6-2 ail7-1 seedlings

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

STM mRNA was also detected in developing leaf primordia in the triple mutant, something not observed in the wild type (Figure 3g,h). The slightly increased levels of STM mRNA detected in ant-4 ail6-2 ail7-1 seedlings by real-time RT-PCR probably reflect this ectopic STM expression in developing leaves

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

STM mRNA was detected throughout the smaller ant-4 ail6-2 ail7-1 shoot apical meristems, unlike wild-type meristems, which show downregulation of STM expression in incipient lateral organ primordia

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

To investigate whether the meristem defects of ant-4 ail6-2 ail7-1 plants are associated with alterations in cell division, we examined the expression of the S phase marker histone H4. Seven-day-old ant-4 ail6-2 ail7-1 meristems had fewer histone H4-expressing cells relative to the wild type (Figure 2i–l). In 10-day-old seedlings, half of the triple mutant meristems examined had no histone H4-expressing cells while the remaining meristems had between one and three such cells

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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Seven-day-old ant-4 ail6-2 ail7-1 ... CDKB2;2 expression was reduced ... compared with the wild type

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

in ant-4 ail6-2 ail7-1 7-day-old seedlings ... STM mRNA levels were slightly increased

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

Seven-day-old ant-4 ail6-2 ail7-1 ... CDKB2;1 ... expression was reduced ... compared with the wild type

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

We also examined expression of ANT, a marker of lateral organ fate (Elliott et al., 1996; Long and Barton, 2000). Interestingly, ANT mRNA was detected not only in leaf primordia but also in ant-4 ail6-2 ail7-1 meristems

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

Using in situ hybridization, we find ... AIL6 mRNA is highest in the peripheral regions of the meristem

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

in ant-4 ail6-2 ail7-1 7-day-old seedlings ... WUS mRNA levels were reduced

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

WUS mRNA was detected in 13 out of 17 ant-4 ail6-2 ail7-1 meristems with varying intensity levels (Figure 3d–f). In many cases, the WUS expression domain was shifted upward into the L1 and L2 layers of the meristem instead of being confined to the L3 layer as in the wild type

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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Using in situ hybridization, we find ... AIL7 mRNA is highest in the center of the meristem

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

Real-time RT-PCR revealed that CLV3 mRNA was undetectable in ant-4 ail6-2 ail7-1 7-day-old seedlings

Mudunkothge JS, Krizek BA - Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function

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  • Gene expression

Expression of EXP1B was ... down-regulated in the lec1-1 mutant

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

35S::LEC1::GR seedlings ... Auxin accumulation was restricted to the collet region of the combined DEX/ABA-treated seedlings (Figure 4l), but was not observed in any of the control treatments

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

RD29B ... expression was well correlated with the severity of the LEC1-induced phenotypes

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

Expression of EXP1B was activated in LEC1-induced structures

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

LHCB5 ... was reduced in ... LEC1-induced structures present in seedlings of phenotypes B and C

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

35S::LEC1::GR ... Repression of DOGT1 ... by LEC1

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

35S::LEC1::GR ... and activation of DWF4 by LEC1

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

LHCA1 was reduced in ... LEC1-induced structures present in seedlings of phenotypes B and C

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

LHCA1 was ... highly expressed in the lec1 mutant

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

LEC1-LIKE (L1L) ... a NF-YB6 subunit-encoding gene, was highly expressed in the LEC1-induced structures in seedlings of phenotypes B and C

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

The LEC1-induced embryonic structures resembled those resulting from ectopic expression of LEC2, which have been associated with enhanced auxin biosynthesis (Stone et al., 2008). Auxin-responsive DR5 activity in phenotype A, B and C seedlings was assessed using a GFP reporter (Ulmasov et al., 1997). Localized high activity of DR5 was detected in the lowermost epidermal cell layers of the hypocotyl (the elongation zone), particularly in the more severely affected phenotype A seedlings (Figure 3a,b). In the less severely affected phenotype B seedlings, a ring of GFP-expressing cells was only visible at the junction between the hypocotyl and the primary root of 7-day-old seedlings (Figure 3c,d), which became the site of callus formation and eventual somatic embryogenesis (Figure 3e–i). After appearance of the callus, the DR5 activity in the collet was no longer visible (Figure 3f). In phenotype C seedlings, GFP expression was detected in the hypocotyl, but was not confined to the elongation zone

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

The seed transcription factor genes ABI3 ... highly expressed after induction of LEC1 compared to the uninduced control plant

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

CAB4 ... was ... highly expressed in the lec1 mutant

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

LHCB5 ... was ... highly expressed in the lec1 mutant

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

The seed transcription factor genes ... FUS3 ... highly expressed after induction of LEC1 compared to the uninduced control plant

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

35S::LEC1::GR seedlings ... Expression of YUC10 was induced by DEX/ABA treatment (Figure 5a). YUC10 was also highly expressed in the LEC1-induced structures, and its level was correlated with the level of embryonic features (relative to phenotype C, the phenotypes A and B do have more embryonic features) of the various phenotypes (high in phenotypes A and B, low in phenotype C; Figure 5b).

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

XTH9, encoding a xyloglucan hydrolase ... was down-regulated in ... LEC1-induced phenotype B and C seedlings

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

The seed transcription factor genes ... LEC2 ... highly expressed after induction of LEC1 compared to the uninduced control plant

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

Expression of IAA19 ... was elevated in the LEC1-induced structures

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

Expression of ... IAA5 was elevated in the LEC1-induced structures

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

CAB4 ... was reduced in ... LEC1-induced structures present in seedlings of phenotypes B and C

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

LEC1-LIKE (L1L ... strongly repressed expression in the lec1 mutant embryo

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

RAB18 expression was well correlated with the severity of the LEC1-induced phenotypes

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TM, Renou JP, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, Altschmied L, Conrad U, Weisshaar B, Bäumlein H - Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

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  • Gene expression

GA treatment promoted STU:GUS activity in shoot apices when compared with mock treatment

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

At 8 days after germination, transcript levels of ... KNOLLE in stu-1 were reduced by approximately ... one-half ... when compared with wild ... type plants

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

In the absence of RGA in ga1-3 rga-t2, STU was significantly upregulated

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU expression was downregulated from 4 hours after RGA induction in dexamethasone-treated seedlings

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

The CYCLIN B1 (CYCB1;1)-GUS reporter ... was evidently reduced in root meristems of stu-1 when compared with wild-type plants under mock treatment

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU:GUS ... At stage 14, GUS staining was mainly detected in ovules

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

ga1-3 background ... RGL1 ... slightly upregulated STU

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU:GUS ... A close examination of longitudinal sections of a stage 10 flower revealed the ... specific staining in the tapetum

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU:GUS ... At stage 14, GUS staining was mainly detected in ... pollen

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

There was no change in STU transcript levels between wild-type and rga-t2 seedlings

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

SIM ... upregulated in stu-1

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

SIM ... downregulated in 35S:STU

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

RGA induction ... seedlings ... under a combined treatment of dexamethasone and cycloheximide ... STU exhibited a similar decreased expression pattern

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU:GUS ... GUS staining remained in main inflorescence apices and was also strongly detected in secondary inflorescence meristems that were subtended by cauline leaves

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

ga1-3 background ... RGL2 slightly upregulated STU

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

GA treatment ... 35S:STU ... inhibiting the expression of ... SIM

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU:GUS ... At 3 days after germination, GUS activity was detected in shoot apices and roots (Fig. 2B). Intense staining patterns were observed in the same regions of 1-week-old and 2-week-old seedlings with gradually increased staining in the leaf vasculature

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

SMR1 ... downregulated in 35S:STU

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU ... transcript levels were significantly upregulated by GA in ga1-3

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

STU:GUS ... GUS staining was strong in the center of the inflorescence apex and the anthers of floral buds at flower stages 9 to 12

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

ga1-3 background ... RGA had the strongest effect on STU ... expression

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

GFP-STU signals were observed throughout the cell

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

SMR1 ... upregulated in stu-1

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

GA treatment ... 35S:STU ... inhibiting the expression of SMR1

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

in shoot apices ... PAC inhibited STU:GUS activity

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

ga1-3 background ... on STU ... GAI had a redundant effect

Lee LY, Hou X, Fang L, Fan S, Kumar PP, Yu H - STUNTED mediates the control of cell proliferation by GA in Arabidopsis

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  • Gene expression

we tested the effect of picloram on gene expression and compared it with the effect of shade ... IAA29 expression was induced by both treatments in pif4pif5 and the wild type ... However, the expression of IAA29 in pif4pif5 never reached wild type levels when seedlings were treated by picloram or shade

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

reduced induction by low R/FR in pif4pif5. This small group contains ... CKX5

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

HFR1 was upregulated by shade but not picloram ... in pif4pif5 and the wild type

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

reduced induction by low R/FR in pif4pif5. This small group contains genes identified previously as dependent on PIF4 and PIF5 for regulation, such as HFR1

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

IAA29 ... showed a slightly reduced expression in pif4pif5 exposed to low R/FR but had strongly reduced expression in high R/FR

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

reduced induction by low R/FR in pif4pif5. This small group contains ... PIL2

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

reduced induction by low R/FR in pif4pif5. This small group contains ... FHL

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

reduced induction by low R/FR in pif4pif5. This small group contains genes identified previously as dependent on PIF4 and PIF5 for regulation, such as ... ATHB2

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

YUC8 ... showed a slightly reduced expression in pif4pif5 exposed to low R/FR but had strongly reduced expression in high R/FR

Hornitschek P, Kohnen MV, Lorrain S, Rougemont J, Ljung K, López-Vidriero I, Franco-Zorrilla JM, Solano R, Trevisan M, Pradervand S, Xenarios I, Fankhauser C - Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

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  • Gene expression

VLN2 is quite suitable to investigate the functional relationship between villins and plant development because it is widely expressed throughout vegetative tissues

Bao C, Wang J, Zhang R, Zhang B, Zhang H, Zhou Y, Huang S - Arabidopsis VILLIN2 and VILLIN3 act redundantly in sclerenchyma development via bundling of actin filaments

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  • Gene expression

Quantitative PCR analysis showed that loss of function of both VLN2 and VLN3 did not affect expression of ... the lignin biosynthetic ... 4CL1 (for hydroxycinnamate CoA ligase)

Bao C, Wang J, Zhang R, Zhang B, Zhang H, Zhou Y, Huang S - Arabidopsis VILLIN2 and VILLIN3 act redundantly in sclerenchyma development via bundling of actin filaments

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  • Gene expression

Quantitative PCR analysis showed that loss of function of both VLN2 and VLN3 did not affect expression of the cellulose synthase ... CesA8

Bao C, Wang J, Zhang R, Zhang B, Zhang H, Zhou Y, Huang S - Arabidopsis VILLIN2 and VILLIN3 act redundantly in sclerenchyma development via bundling of actin filaments

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  • Gene expression

Quantitative PCR analysis showed that loss of function of both VLN2 and VLN3 did not affect expression of ... the lignin biosynthetic ... CCoAOMT (for caffeoyl CoA O-methyltransferase)

Bao C, Wang J, Zhang R, Zhang B, Zhang H, Zhou Y, Huang S - Arabidopsis VILLIN2 and VILLIN3 act redundantly in sclerenchyma development via bundling of actin filaments

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  • Gene expression

Quantitative PCR analysis showed that loss of function of both VLN2 and VLN3 did not affect expression of the cellulose synthase ... CesA7

Bao C, Wang J, Zhang R, Zhang B, Zhang H, Zhou Y, Huang S - Arabidopsis VILLIN2 and VILLIN3 act redundantly in sclerenchyma development via bundling of actin filaments

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  • Gene expression

we found that the VLN2 and VLN3 expression patterns overlapped considerably (Figure S1A); this was confirmed by RT-PCR analysis of several tissues, including stems, pedicels, roots and hypocotyls

Bao C, Wang J, Zhang R, Zhang B, Zhang H, Zhou Y, Huang S - Arabidopsis VILLIN2 and VILLIN3 act redundantly in sclerenchyma development via bundling of actin filaments

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  • Gene expression

we found that the VLN2 and VLN3 expression patterns overlapped considerably (Figure S1A); this was confirmed by RT-PCR analysis of several tissues, including stems, pedicels, roots and hypocotyls

Bao C, Wang J, Zhang R, Zhang B, Zhang H, Zhou Y, Huang S - Arabidopsis VILLIN2 and VILLIN3 act redundantly in sclerenchyma development via bundling of actin filaments

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  • Gene expression

in response to simulated canopy shade ... expression of PHABULOSA ... remain unchanged

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

To determine whether REV is able to induce auxin levels, we have introduced the 35S::GR-REVd transgene into plants that harbor the DR5::GUS reporter by crossing. Col-0 wild-type plants showed DR5-GUS expression in the leaf margins and hydathodes (Figure 6a). Induction of GR-REVd by DEX application results in a strong GUS signal throughout the leaf lamina

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

HAT2 ... expression ... is significantly lower in ... 35S::ZPR3 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

HAT2 ... expression ... is significantly lower in rev-5

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal ... was detected ... in the adaxial domain of developing leaves ... for HAT2

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal ... was detected in the vasculature ... for ... HAT3

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

Our analysis revealed a strong transcriptional upregulation of HAT2 ... in response to DEX induction in 35S::GR-REVd transgenic plants ... To verify that the mode of regulation of these HD-ZIPII genes is of a direct nature, we performed the experiment in the presence of the protein biosynthesis inhibitor cycloheximide (CHX). Also in the presence of CHX, HAT2 ... showed significant expression changes in response to DEX application, which implies that they are direct REV-target genes

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

In the 35S::miR165a transgenic line ... the expression of HAT3 is slightly higher than in the wild-type controls

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

in response to simulated canopy shade ... expression of ... PHAVOLUTA remain unchanged

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

ATHB2/HAT4 ... expression ... is significantly lower in ... 35S::ZPR3 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

YUC5 ... expression ... is significantly lower in rev-5

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

ATHB4 ... expression ... is significantly lower in rev-5

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

In the 35S::miR165a transgenic line, expression of ATHB2/HAT4 ... is lower compared with wild-type

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

TAA1 ... expression levels are slightly lower in ... 35S::ZPR3 plants compared with wild-type

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal ... was detected in the vasculature ... for HAT2

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

YUC5 is markedly induced in wild-type plants in response to shade treatment

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal ... was detected ... in the adaxial domain of developing leaves ... for ... ATHB4

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

REV-β-glucuronidase (GUS) reporter (rev-9 ... expressed in ... the shoot apical meristem region of young seedlings

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

Our analysis revealed a strong transcriptional upregulation of ... ATHB2/HAT4 ... in response to DEX induction in 35S::GR-REVd transgenic plants ... To verify that the mode of regulation of these HD-ZIPII genes is of a direct nature, we performed the experiment in the presence of the protein biosynthesis inhibitor cycloheximide (CHX). Also in the presence of CHX ... ATHB2/HAT4 ... showed significant expression changes in response to DEX application, which implies that they are direct REV-target genes

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

REV-β-glucuronidase (GUS) reporter (rev-9) ... expressed in ... the vasculature

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

in response to DEX induction in 35S::GR-REVd transgenic plants ... the expression of HAT1 ... did not change significantly

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

TAA1 ... expression levels are slightly lower in rev-5

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

HAT3 ... is markedly induced in wild-type plants in response to shade treatment

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

Our analysis revealed a strong transcriptional upregulation of ... HAT3 ... in response to DEX induction in 35S::GR-REVd transgenic plants ... To verify that the mode of regulation of these HD-ZIPII genes is of a direct nature, we performed the experiment in the presence of the protein biosynthesis inhibitor cycloheximide (CHX). Also in the presence of CHX ... HAT3 ... showed significant expression changes in response to DEX application, which implies that they are direct REV-target genes

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

ATHB2/HAT4 ... expression ... is significantly lower in rev-5

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a TAA1 promoter–GUS reporter line ... expressed in ... the vasculature

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

Our analysis revealed a strong transcriptional upregulation of ... ATHB4 ... in response to DEX induction in 35S::GR-REVd transgenic plants ... To verify that the mode of regulation of these HD-ZIPII genes is of a direct nature, we performed the experiment in the presence of the protein biosynthesis inhibitor cycloheximide (CHX). Also in the presence of CHX ... ATHB4 showed significant expression changes in response to DEX application, which implies that they are direct REV-target genes

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

In the 35S::miR165a transgenic line, expression of ... YUC5 is lower compared with wild-type

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

expression of ... TAA1 ... is reduced significantly by DEX induction of 35S::FLAG-GR-KAN1 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal ... was detected ... in the adaxial domain of developing leaves ... for ... TAA1

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal for ... was detected in the vasculature ... for ... ATHB4

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

The expression of TAA1 does not change in response to shade

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

in response to DEX induction in 35S::GR-REVd transgenic plants ... Even though identified as putative targets, the expression of ... HAT22 did not change significantly

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

ATHB2/HAT4 ... is markedly induced in wild-type plants in response to shade treatment

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

As shown for the published 35S::KAN1-GR plants, our 35S::FLAG-GR-KAN1 line was also able to strongly repress expression of the ASYMMETRIC LEAVES2 gene

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

we performed in situ hybridizations on transverse shoot apical meristem sections. As expected, a specific signal for REV was detected in the vasculature

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

expression of ... YUC5 is reduced significantly by DEX induction of 35S::FLAG-GR-KAN1 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

To find out if REV can transcriptionally regulate other genes that encode auxin biosynthetic enzymes, we analyzed systematically expression changes of all YUCCA-type and TAA1-related genes in wild-type Col-0 and transgenic 35S::GR-REVd plants elicited by DEX induction (Figure S1). This study revealed that YUCCA5 expression is also regulated by REV ... To confirm that REV can upregulate ... YUC5 expression, we performed quantitative RT-PCR reaction on wild-type Col-0 and transgenic 35S::GR-REVd seedlings with and without DEX application. These experiments demonstrated that the level of transcription is increased in ... YUC5 in response to DEX application in the transgenic 35S::GR-REVd plants ... The induction also occurs in seedlings pre-treated with cycloheximide (CHX), which supports a direct role for REV in the regulation of these genes

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

ATHB4 ... expression ... is significantly lower in ... 35S::ZPR3 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

ATHB4 ... is markedly induced in wild-type plants in response to shade treatment

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a TAA1 promoter–GUS reporter line ... expressed in ... the shoot apical meristem region of young seedlings

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal ... was detected ... in the adaxial domain of developing leaves ... for ... HAT3

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

in response to DEX induction in 35S::GR-REVd transgenic plants ... Even though identified as putative targets, the expression of ... HAT14 ... did not change significantly

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

a specific signal ... was detected in the vasculature ... for ... TAA1

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

HAT3 ... expression ... is significantly lower in rev-5

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

expression of HAT2 ... is reduced significantly by DEX induction of 35S::FLAG-GR-KAN1 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

In the 35S::miR165a transgenic line, expression of ... ATHB4 ... is lower compared with wild-type

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

To confirm that REV can upregulate ... TAA1 ... expression, we performed quantitative RT-PCR reaction on wild-type Col-0 and transgenic 35S::GR-REVd seedlings with and without DEX application. These experiments demonstrated that the level of transcription is increased in ... TAA1 ... in response to DEX application in the transgenic 35S::GR-REVd plants ... The induction also occurs in seedlings pre-treated with cycloheximide (CHX), which supports a direct role for REV in the regulation of these genes

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

HAT2 ... is markedly induced in wild-type plants in response to shade treatment

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

we performed in situ hybridizations on transverse shoot apical meristem sections. As expected, a specific signal for REV was detected ... in the adaxial domain of developing leaves

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

HAT3 ... expression ... is significantly lower in ... 35S::ZPR3 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

YUC5 ... expression ... is significantly lower in ... 35S::ZPR3 plants

Brandt R, Salla-Martret M, Bou-Torrent J, Musielak T, Stahl M, Lanz C, Ott F, Schmid M, Greb T, Schwarz M, Choi SB, Barton MK, Reinhart BJ, Liu T, Quint M, Palauqui JC, Martínez-García JF, Wenkel S - Genome-wide binding-site analysis of REVOLUTA reveals a link between leaf patterning and light-mediated growth responses

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  • Gene expression

petioles a ... transcript levels of BOP2 ... reduced in ... dcl1-9

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

petioles ... transcript levels of BOP2 ... reduced in ... ago1-52

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

laminae ... transcript levels of BOP2 ... reduced in ... dcl1-9

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

laminae ... transcript levels of BOP2 ... reduced in ... ago1-52

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

quantitative RT-PCR ... increased AGL16 transcript levels in the petioles ... dcl1-9

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

quantitative RT-PCR ... increased AGL16 transcript ... levels in ... laminae of ago1-52

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

quantitative RT-PCR ... increased AGL16 transcript levels in the petioles ... of ago1-52

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

quantitative RT-PCR ... increased AGL16 transcript levels in ... laminae of ... dcl1-9

Jover-Gil S, Candela H, Robles P, Aguilera V, Barrero JM, Micol JL, Ponce MR - The microRNA pathway genes AGO1, HEN1 and HYL1 participate in leaf proximal-distal, venation and stomatal patterning in Arabidopsis

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  • Gene expression

In order to identify host factors essential for viral infection, seeds of Col-16 were EMS-mutagenized and M2 individuals were phenotyped for reduction or loss of MP17:GFP fluorescence ... The its1/MP17:GFP suppressor mutant is characterized by loss of MP17:GFP fluorescence and protein in source leaves (Figure 1a,b). Further analysis showed that MP17:GFP fluorescence is not absent per se. MP17:GFP fluorescence remains in cotyledons (Figure S1), and silencing increases during source leaf development, reminiscent of co-suppression

Thran M, Link K, Sonnewald U - The Arabidopsis DCP2 gene is required for proper mRNA turnover and prevents transgene silencing in Arabidopsis

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  • Gene expression

To exclude MP17:GFP-specific effects, we tested whether independent transgenes are silenced in the its1 background. To this end, enhanced soluble GFP (eGFP) was introgressed and the MP17:GFP transgene was replaced by segregation. We observed a loss of eGFP fluorescence in almost all aerial organs of the its1/eGFP F2 individuals (Figure 2a,b), accompanied by a loss of eGFP mRNA and accumulation of eGFP siRNAs (Figure 2c,d). Further examination showed that eGFP silencing is rapidly initiated and spreads to all aerial parts of the its1/eGFP mutant (Figure 2a). The nexus of silencing varied in time and location, which indicates that a PTGS mechanism caused the silencing in the its1 mutant. To investigate this, we infected the its1/eGFP mutant with turnip mosaic virus (TuMV), which encodes the HcPro silencing suppressor. All TuMV-infected its1/eGFP mutants displayed reversion of silencing accompanied by a resumption of eGFP fluorescence, an increase in eGFP mRNA and a reduction of eGFP siRNA abundance (Figure 2b–d). Taken together, these results suggest that transgenes can become the target of PTGS in the its1 mutant

Thran M, Link K, Sonnewald U - The Arabidopsis DCP2 gene is required for proper mRNA turnover and prevents transgene silencing in Arabidopsis

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  • Gene expression

At later stages, when serrations grew out in wild type, a diffuse expression of DR5::GFP was visible throughout the leaf margin of 35S::DPA4-9 plants

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

DPA4 expression was observed in the leaf sinus

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

In strong DPA4-overexpressing plants, no CUC2:VENUS signal was detected

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

in situ hybridisation revealed that expression of DPA4 was still restricted to discrete clusters of few cells in clf/swn callus tissue, indicating that additional regulation, apart from PcG-mediated repression, is involved in the tight regulation of DPA4

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

Expression analysis in the single ... mutants of MIR164A ... confirmed that ... CUC2 expression was increased

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

To test whether DPA4 affects auxin distribution, we analysed expression of the DR5::GFP auxin reporter in 35S::DPA4 plants (Benková et al., 2003). 35S::DPA4-9 plants showed GFP signal at the tip of initiating leaves, comparable to wild type, but failed to establish discrete auxin maxima at other positions, even at growth stages when wild-type leaves had already initiated serrations

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

In situ hybridisation experiments showed that expression of DPA4 within the shoot apex is tightly restricted to the areas of primordia formation. In vegetative and transition apices, expression was observed at the emerging boundary between the shoot apex and the leaf primordium. DPA4 expression persisted in this area as the leaf developed

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

In the single clf mutant, DPA4 expression was slightly lower than in wild type

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

CUC2 expression was strongly downregulated in 35S::DPA4-1 ... in ... young developing leaves, where no CUC2 transcript was detectable in 35S::DPA4 plants

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

Expression analysis in the single ... mutants of ... DPA4 ... confirmed that ... CUC2 expression was increased

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

CUC2 expression ... an additive increase was observed in mir164a-4/dpa4 double mutants

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

DPA4 expression that might be conferred through chromatin-mediated gene repression by PcG proteins. We probed the expression of DPA4 in plants mutated in components of the PcG pathway. In the severe clf/swn double mutants, PcG-mediated repression is abolished in the developing seedling. DPA4 was ~6-fold upregulated at 22 days in clf/swn, whereas upregulation at 11 days was much weaker

Engelhorn J, Reimer JJ, Leuz I, Göbel U, Huettel B, Farrona S, Turck F - Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana

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  • Gene expression

CHR17 ... Our quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis showed that the genes encoding AtISWI ... were universally expressed in different tissues

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

FT was actually up-regulated in the rlt1-1 rlt2-1double mutant

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

subcellular localization analyses showed that ... RLT2 ... mainly localized in the nucleus

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

RLT1 ... Our quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis showed that the genes encoding ... RLTs were universally expressed in different tissues

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

To further investigate their expression patterns, we analyzed by in situ hybridization the transcript distributions of ... CHR17 ... CHR17 transcripts were detected in vigorously growing tissues ... These include the shoot apical meristem

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

rlt1-1 rlt2-1 ... We further analyzed expression of SOC1 ... by qRT-PCR using 5-day-old seedlings and leaves from the 14-day-old seedlings, and our results showed that ... SOC1 were up-regulated

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

RLT2 ... Our quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis showed that the genes encoding ... RLTs were universally expressed in different tissues

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

SEP3 ... ectopically expressed in leaves of chr11-1 chr17-1

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

rlt1-1 rlt2-1 ... We further analyzed expression of ... FUL ... by qRT-PCR using 5-day-old seedlings and leaves from the 14-day-old seedlings, and our results showed that FUL ... up-regulated

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

chr11-1 chr17-1 ... We further analyzed expression of SOC1 ... by qRT-PCR using 5-day-old seedlings and leaves from the 14-day-old seedlings, and our results showed that ... SOC1 were up-regulated

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

We also analyzed RLT2 expression patterns by GUS staining of the RLT2pro:GUS transgenic plants ... RLT2 was expressed ubiquitously, and the most abundant expression was observed in the vigorously growing tissues

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

CHR17 transcripts were detected in ... young leaves

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

SEP1 ... ectopically expressed in leaves of ... rlt1-1 rlt2-1

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

SEP1 ... ectopically expressed in leaves of chr11-1 chr17-1

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

chr11-1 chr17-1 ... We further analyzed expression of ... FLC by qRT-PCR using 5-day-old seedlings and leaves from the 14-day-old seedlings, and our results showed that ... FLC was down-regulated

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

subcellular localization analyses showed that ... CHR11 ... mainly localized in the nucleus

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

CHR11 ... transcripts were detected in ... young leaves

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

To further investigate their expression patterns, we analyzed by in situ hybridization the transcript distributions of CHR11 ... CHR11 ... transcripts were detected in vigorously growing tissues ... These include the shoot apical meristem

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

The microarray analyses also showed that expression of the FT gene was up-regulated in chr11-1 chr17-1 ... However, our qRT-PCR analysis not only confirmed that this gene was up-regulated in chr11-1 chr17-1

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

chr11-1 chr17-1 ... We further analyzed expression of ... FUL ... by qRT-PCR using 5-day-old seedlings and leaves from the 14-day-old seedlings, and our results showed that FUL ... up-regulated

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

CHR11 ... Our quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis showed that the genes encoding AtISWI ... were universally expressed in different tissues

Li G, Zhang J, Li J, Yang Z, Huang H, Xu L - Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis

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  • Gene expression

TCP20-GFP signal was predominantly present in nuclei

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

expression levels of ... TCP20 ... were determined in four and 14-day-old leaves by real-time PCR ... This analysis shows that the ... TCP ... equally ... expressed in older leaves in comparison to young leaves

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

Plants expressing a genomic version of TCP20 tagged with a GREEN FLUORESCENT PROTEIN (GFP) encoding sequence under control of the endogenous TCP20 promoter (gTCP20-GFP) were analyzed at different time points after germination to obtain detailed information about the developmental expression pattern of TCP20. Fluorescence was detected by confocal laser scanning microscopy (CLSM) as shown in Figure 1. Expression was observed in several organs throughout development, like young and mature leaves

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

tcp20 knockout alone is not able to change TCP9 expression, suggesting that redundant factors activate TCP9 expression in the absence of TCP20

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

In developing leaves, we detected TCP20-GFP signal in the first leaf primordia of seedlings three days after germination

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

LOX2 expression itself changes substantially during leaf development ... shows an increased expression in the first leaf 14 days after sowing

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

expression levels of ... TCP8 ... were determined in four and 14-day-old leaves by real-time PCR ... This analysis shows that the ... TCP ... equally ... expressed in older leaves in comparison to young leaves

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

expression levels of TCP4 ... were determined in four and 14-day-old leaves by real-time PCR ... the class II TCP4 gene is expressed stronger in old leaves, which is in line with an increased LOX2 expression in the 14-day-old leaves

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

TCP9 gets induced upon DEX induction of TCP20-GR in the tcp20 mutant background

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

we could detect significant LOX2 repression already two hours after Dexamethasone/Cycloheximide treatment (t-Test, p = 0.004 ... tcp20/35S:TCP20-GR plants

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

we detected TCP20-GFP signal ... in the first leaf of two ... to four weeks old plants

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

LOX2 expression itself changes substantially during leaf development ... it is lowly expressed during early leaf development

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

In leaves of 14–day-old tcp20 mutant plants LOX2 expression was significantly up-regulated

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

expression levels of ... TCP22 were determined in four and 14-day-old leaves by real-time ... This analysis shows that the ... TCP ... lower ... expressed in older leaves in comparison to young leaves

Danisman S, van der Wal F, Dhondt S, Waites R, de Folter S, Bimbo A, van Dijk AD, Muino JM, Cutri L, Dornelas MC, Angenent GC, Immink RG - Arabidopsis class I and class II TCP transcription factors regulate jasmonic acid metabolism and leaf development antagonistically

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  • Gene expression

Therefore, we hypothesized that PIN proteins might likewise be up-regulated in the shoot meristem in the absence of PIN1. To address this question, we crossed all four GFP constructs into the pin1 background. In segregating populations of stage I seedlings, all analyzed ... PIN7-GFPpin1 ... meristems showed expression patterns comparable to wild-type populations

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

We analyzed a large population of seedlings segregating for the pin1 allele, assuming that any change in DR5-GFP due to the loss of PIN1 should be visible in one-fourth of them. All analyzed seedlings showed similar DR5-GFP expression as wild-type seedlings (Fig. 4B). As in wild-type seedlings, 64% (27 of 42) of the seedlings segregating for the pin1 mutation had DR5-GFP signal in the meristem itself

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN3-GFP in bulging primordia of ... stage III plants ... ectopic expression ... was also observed in phenotypically wild-type plants of those crosses

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN3-GFP was found in the epidermis of leaf primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

Therefore, we hypothesized that PIN proteins might likewise be up-regulated in the shoot meristem in the absence of PIN1. To address this question, we crossed all four GFP constructs into the pin1 background. In segregating populations of stage I seedlings, all analyzed PIN2-GFPpin1 ... meristems showed expression patterns comparable to wild-type populations

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

Stage I wild-type seedlings showed DR5-GFP expression in ... early veins

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN3-GFP was found in the epidermis of ... cotyledons

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN2 ... translational GFP fusions under the control of their native promoters ... None of the other PIN-GFP constructs was detected in the meristem

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN7-GFP was found in a pattern very similar to PIN3-GFP in ... the epidermis of young leaves

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN7-GFP ... was not found in young primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In stage I wild-type seedlings, PIN1-GFP was expressed in the epidermis ... of leaf primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

Approximately 60% (10 of 17) of wild-type seedlings displayed DR5-GFP expression in the shoot apical meristem

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In the case of PIN3-GFP, most lines resulting from the cross of PIN3-GFP into the pin1 background showed expression similar to the wild-type background (Supplemental Fig. S3, B and F). However, some lines expressed PIN3-GFP in bulging primordia of stage I

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

Stage I wild-type seedlings showed DR5-GFP expression in ... stipules

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

unaltered expression of the central zone marker CLAVATA3-GFP in pin1 ... stage III

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In contrast, DR5-GFP expression in pin1 clearly differed from the wild type in stage ... III mutants ... During stage III, DR5-GFP levels were again very high in the tissue subjacent to the meristem

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In stage III ... PIN1-GFP was the only PIN protein found in ... young primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN4-GFP was occasionally expressed very weakly in the epidermis of primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN3 ... translational GFP fusions under the control of their native promoters ... None of the other PIN-GFP constructs was detected in the meristem

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN3-GFP in bulging primordia of stage I ... ectopic expression ... was also observed in phenotypically wild-type plants of those crosses

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In the case of PIN3-GFP, most lines resulting from the cross of PIN3-GFP into the pin1 background showed expression similar to the wild-type background (Supplemental Fig. S3, B and F). However, some lines expressed PIN3-GFP in ... bulging primordia of ... stage III plants

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

Therefore, we hypothesized that PIN proteins might likewise be up-regulated in the shoot meristem in the absence of PIN1. To address this question, we crossed all four GFP constructs into the pin1 background. In segregating populations of stage I seedlings, all analyzed ... PIN4-GFPpin1 ... meristems showed expression patterns comparable to wild-type populations

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In stage I wild-type seedlings, PIN1-GFP was expressed in the ... vasculature of leaf primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In wild-type plants ... during stages II ... DR5-GFP was expressed in regularly spaced peaks in young and incipient primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN2-GFP was expressed in a single row of leaf margin cells with polarization toward leaf tips

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In contrast, DR5-GFP expression in pin1 clearly differed from the wild type in stage II ... Stage II meristems were often surrounded by very strong DR5-GFP signal

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In stage III ... PIN1-GFP was the only PIN protein found in the meristem

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In contrast, DR5-GFP expression in pin1 clearly differed from the wild type in stage II ... Stage II ... but DR5-GFP was usually not detectable in the meristem itself

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

Stage I wild-type seedlings showed DR5-GFP expression in leaf tips

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

wild-type plants ... during stages ... III ... DR5-GFP was expressed in regularly spaced peaks in young and incipient primordia

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN4 ... None of the other PIN-GFP constructs was detected in the meristem

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

In stage I wild-type seedlings, PIN1-GFP was expressed ... in the meristem itself

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN7 ... None of the other PIN-GFP constructs was detected in the meristem

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

However, it was difficult to draw conclusions about leaf development in stage III plants because DR5-GFP was never visible in young primordia of mutant stage III meristems, suggesting that the DR5 promoter might not be responsive in those tissues

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

PIN7-GFP was found in a pattern very similar to PIN3-GFP in hypocotyls

Guenot B, Bayer E, Kierzkowski D, Smith RS, Mandel T, Žádníková P, Benková E, Kuhlemeier C - Pin1-independent leaf initiation in Arabidopsis

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  • Gene expression

we analyzed wounded ... plants to determine whether ... HPL expression levels are modulated in response to abiotic stresses ... These data show ... elevated HPL expression in plants treated with these abiotic stresses as compared to untreated controls

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

the expression levels of allene oxide synthase (AOS), a stress-inducible nuclear gene encoding a key plastidlocalized protein in the JA-biosynthetic pathway ... were comparable between ceh1 and control lines

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

To examine the specificity of MEcPP as an inducer of the HPL expression, we exogenously treated the P lines with water as the control or with MEcPP before and immediately after wounding, followed by qRT-PCR analysis in conjunction with quantitative LUC bioluminescence measurements 90 min after these applications ... These measurements establish that the HPL expression is induced in response to exogenous application of MEcPP before or after wounding. However, the highest levels of HPL induction are displayed by plants treated with MEcPP postwounding, suggesting that ease of penetration through the wound site potentially enhanced accessibility of this metabolite

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

To determine whether ceh1 affects similar mechanisms in plastid development to those affected by the gun mutants, we examined the expression levels of LHCB in wild-type (WT) and ceh1 seedlings grown in the presence of norflurazon (NF), an inhibitor of phytoene desaturase, a critical enzyme in the carotenoid biosynthesis pathway ... These data demonstrate that NF-treated WT and ceh1 seedlings are both photo bleached and have reduced levels of LHCB transcripts

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

As the basis of the screen, transgenic plants were established that contain the HPL promoter region fused to the firefly luciferase (PHPL::LUC ... high and constitutive LUC activity levels detected ... in the ceh1/eds16-1

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

This higher SA level in ceh1 was accompanied by an _4-fold increase in transcript levels of ICS1, a stress-inducible nuclear gene encoding a key plastidial enzyme in the SA-biosynthetic pathway

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

To dissect the upstream signal transduction machinery responsible for stress induction of HPL, we devised a genetic screen to identify mutations that result in constitutive expression of HPL. As the basis of the screen, transgenic plants were established that contain the HPL promoter region fused to the firefly luciferase (PHPL::LUC) ... Ceh1 displayed a _100-fold higher LUC activity than the P control (Figure 1C). Correspondingly, qRT-PCR analysis showed_17-fold higher levels of the endogenous HPL transcript in ceh1 as compared to controls

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

lack of any detectable changes in the expression levels of AOS in response to MEcPP treatment

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

we analyzed ... high-light-treated plants to determine ... HPL expression levels are modulated in response to abiotic stresses ... These data show ... elevated HPL expression in plants treated with these abiotic stresses as compared to untreated controls

Xiao Y, Savchenko T, Baidoo EE, Chehab WE, Hayden DM, Tolstikov V, Corwin JA, Kliebenstein DJ, Keasling JD, Dehesh K - Retrograde signaling by the plastidial metabolite MEcPP regulates expression of nuclear stress-response genes

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS ... This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes ... These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

To characterize the pattern of EXPA gene expression, leaves at different developmental stages were dissected, RNA extracted and the presence/absence of individual expansin transcripts assayed by RT-PCR (Fig. 1D). The earliest stage of leaf development analyzed here (12-14 DAS) was characterized by the expression of at least 7 EXPA genes. These showed a general pattern of maintained expression throughout development, with other EXPA transcripts becoming detectable at later stages of development with a maximum number of up to 10 EXPA genes being expressed over a broad period from 20-28 DAS. This period of maximum number of expressed EXPA genes correlates with the period of maximum absolute rate (Fig. 1B) and the hiatus in relative rate of leaf expansion (Fig. 1C

Goh HH, Sloan J, Dorca-Fornell C, Fleming A - Inducible repression of multiple expansin genes leads to growth suppression during leaf development

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln1-1 ... ndhB mRNAs ... ndhB ... were slightly up-regulated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln2-1 ... Transcripts for ... accD ... were slightly elevated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln1-1 ... Transcripts for ... rpoB ... were slightly elevated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln1-1 ... fln1 ... fln1 ... clpP ... were slightly up-regulated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln2-1 ... Transcripts for ... rpoB ... were slightly ... slightly elevated ... elevated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... psbA ... was strongly reduced in ... fln2-1 seedlings compared to Col-0 and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to ... quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... rrn23S was strongly reduced in ... rrn23S ... fln1-1 ... seedlings compared to Col-0 and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... Expression ... rbcL ... was strongly reduced in both fln1-1 ... seedlings compared to Col-0 ... 0 and ... and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... FLN1 mRNA is not elevated in fln2-1

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to ... quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... rrn23S ... was strongly reduced in ... fln2-1 seedlings compared to Col-0 and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day ... day old ... old ... seedlings ... were subjected ... subjected to ... quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... rbcL ... was strongly reduced in ... fln2-1 seedlings compared to Col-0 and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln1-1 ... Transcripts for ... accD ... were slightly elevated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln1-1 ... for rpl23 ... transcripts ... only 50% of wild type expression

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln2-1 ... ndhB mRNAs were slightly up-regulated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... FLN2 mRNA is two-fold higher in fln1-1 than Col-0,

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to ... quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... psbB ... was strongly reduced in ... fln2-1 seedlings compared to Col-0 and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... Transcripts for ... rpoC1 ... were slightly ... were ... slightly elevated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis (Figure 4 ... in ... fln1-1 ... Transcripts for ... rpoC1 ... were slightly ... slightly elevated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln2-1 ... for rpl23 ... transcripts ... only 50% of wild type expression

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... in ... fln2-1 ... clpP ... mRNAs were slightly up-regulated

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to ... quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... psbA ... was ... strongly reduced in ... fln1-1 ... seedlings compared to Col-0 and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

RNA from 7-day old ... seedlings ... were subjected to quantitative real-time RT-PCR (qRT-PCR) analysis ... Expression of ... psbB ... was strongly reduced in ... fln1-1 ... fln1 ... seedlings compared to Col-0 and to their respective phenotypically wild-type siblings

Gilkerson J, Perez-Ruiz JM, Chory J, Callis J - The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana

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  • Gene expression

using the genes coding for the ER-located ... Bip ... 2 ... exhibit markedly increased expression levels in pht4;6 plants compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

the 3′(2′),5′-bisphosphate nucleotidase SAL2 (At5g64000) ... In leaves of pht4;6 mutants, all four Pi-responsive genes were drastically (4.5–19-fold) up-regulated compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

PR1 (an SA-induced gene of unclear function) ... exhibit increased expression in pht4;6 plants compared to corresponding wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

Some types of sugar moieties required for hemicellulose biosynthesis also serve in covalent modification of proteins in the ER and Golgi compartments. Therefore, we also searched for putative modifications in the protein glycosylation pattern. Using concanavalin A, a lectin that is able to bind high-mannose-type N-glycans attached to polypeptides (Mandal and Brewer, 1993), we demonstrated that at least three proteins of unknown nature show altered abundance in pht4;6 leaves compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

PAL (encoding phenylalanine ammonia- lyase) ... exhibit increased expression in pht4;6 plants compared to corresponding wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

PR2 (ß-1,3--glucanase) ... exhibit increased expression in pht4;6 plants compared to corresponding wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

Similarly, use of α-horseradish peroxidase antibody, which is able to bind complex-type N-glycans (especially fucose and xylose residues, Wilson et al., 1998), revealed that at least five proteins in pht4;6 leaves show altered abundance (either increased or decreased, respectively) when compared to wild-type

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

WRKY75 ... In leaves of pht4;6 mutants, all four Pi-responsive genes were drastically (4.5–19-fold) up-regulated compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

using the genes coding for the ER-located ... Bip1 ... exhibit markedly increased expression levels in pht4;6 plants compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

using the genes coding for the ER-located ... calnexin1 (CNX1 ... exhibit markedly increased expression levels in pht4;6 plants compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

WRKY38 ... In leaves of pht4;6 mutants, all four Pi-responsive genes were drastically (4.5–19-fold) up-regulated compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

GSTF6 (a glutathione transferase) ... exhibit increased expression in pht4;6 plants compared to corresponding wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

using the genes coding for the ER-located ... calreticulin1 ... exhibit markedly increased expression levels in pht4;6 plants compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

the transcription factor BZIP60 ... exhibit markedly increased expression levels in pht4;6 plants compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

using the genes coding for the ER-located ... Bip3 ... exhibit markedly increased expression levels in pht4;6 plants compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

PHT4;6 locates to the Golgi apparatus (Guo et al., 2008b; Cubero et al., 2009), but the exact location within this very complex cellular structure is unknown. Using co-expression of a PHT4;6–GFP construct with either cis-Golgi-located α-mannosidase–RFP (Nebenführ et al., 2002) or trans-Golgi-located sialin transferase–DsRFP (ST–DsRFP) (Saint-Jore et al., 2002), we were able to clarify the subcellular location of PHT4;6 in more detail. A merged image of PHT4;6–GFP with α-mannosidase–RFP at high magnification showed distinctly labeled sub-domains of the Golgi apparatus, whereas a merged image of PHT4;6–GFP with ST–DsRed revealed close overlap, indicating a trans-Golgi location of the PHT4;6 protein

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

using the genes coding for the ER-located ... calreticulin ... 2 ... exhibit markedly increased expression levels in pht4;6 plants compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

the plasma membrane-located phosphate importer PHT1;4 ... In leaves of pht4;6 mutants, all four Pi-responsive genes were drastically (4.5–19-fold) up-regulated compared to wild-type plants

Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE - Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis

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  • Gene expression

Expression of the auxin efflux carrier PIN-FORMED1 (PIN1) precedes expression of ATHB8–GUS in leaf primordia, and thus represents an earlier marker for procambium formation (Scarpella et al., 2006). We used a functional PIN1–GFP reporter (Benkova et al., 2003) to examine PIN1 expression. During formation of continuous veins in wild-type leaf primordia, the PIN1–GFP expression domain was broad at first but was gradually restricted to a narrow site and became connected to the midvein PIN1–GFP expression domain or other pre-existing PIN1–GFP expression domains (Scarpella et al., 2006). In contrast, some PIN1–GFP expression domains were ectopic or even missing, or failed to extend in sub-2 plants (Figure 4f), suggesting that the auxin flow may be interrupted

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

To examine the early vascular development, we introduced ATHB8–GUS, a marker for procambial cells (Baima et al., 1995), into sub-2 plants. Although expression of ATHB8–GUS showed no obvious difference between sub-2 and Col-0 at leaf stage 1 (Figure 4c), the subsequent formation of continuous loops was disturbed in the sub-2 leaves

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

To examine the expression pattern of SUB during leaf development, promoter activity was analyzed using the proSUB:GUS reporter line (Figure 6a–o). The GUS signal was weak in the shoot apical meristem

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

promoter activity was analyzed using the proSUB:GUS reporter line ... The GUS signal ... increased throughout young primordia, with higher activity in provascular tissues and the adaxial–abaxial juxtaposition region

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

To examine the expression pattern of SUB during leaf development, promoter activity was analyzed using the proSUB:GUS reporter line ... During leaf expansion, GUS expression was basipetally reduced and finally restricted to vascular cells that were still dividing and differentiating

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

To further examine the accumulation of SUB protein during leaf development, we generated transgenic plants expressing SUB–YFP under the control of a native SUB promoter (proSUB:SUB-YFP) in the sub-2 background. The SUB–YFP fluorescence signal was very weak in the leaf primordia of most transgenic plants, although the leaf phenotypes of sub-2 were rescued. We thus selected complemented plants with strong YFP signal but reduced leaf size, which resemble the phenotypes of weak SUB-OE plants (see below), for analysis. Consistent with the GUS activity of proSUB:GUS, SUB–YFP accumulation in young primordia was basipetally diminished during leaf development and became restricted to developing vascular cells (Figure 6p–r). In addition, SUB–YFP accumulated in the cell periphery of epidermal tissues (Figure 6s), similar to previous reports in root and sepal epidermal cells (Kwak and Schiefelbein, 2008; Yadav et al., 2008). Interestingly, accumulation of SUB–YFP was predominant at the junctions of two neighboring procambial cells (arrows in Figure 6t), suggesting a potential polar localization of SUB during vascular differentiation

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

The CYCB1;1–GUS activity decreased earlier in sub-2 plants than in Col-0 at both temperatures (Figure 3e,f and S4), consistent with the reduced cell number as shown in Figure 3(d).

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

Expression of DR5–GUS in sub-2 leaves was slightly weaker in both tip and vascular zones but increased in the ectopic hydathodes (Figure S6a,b). Exogenous application of indole-3-acetic acid (IAA) induced DR5–GUS expression in both Col-0 and sub-2 seedlings, showing that auxin perception and response were normal in the sub-2 mutant

Lin L, Zhong SH, Cui XF, Li J, He ZH - Characterization of temperature-sensitive mutants reveals a role for receptor-like kinase SCRAMBLED/STRUBBELIG in coordinating cell proliferation and differentiation during Arabidopsis leaf development

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  • Gene expression

expression of ... AtPIN4 ... were decreased ... 35S::MIR394a

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of ... AtPIN7 were decreased in ... AtPIN7 ... 35S::MIR394a

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394b ... was strongly expressed in the transgenic plants ... 35S::MIR394a/b

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of LCR in 35S::MIR394a/b plants was drastically decreased

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

IAA3 ... basal level ... was slightly higher in 35S::MIR394a plants than in wild type

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

LCR expression in MIM394 ... was considerably higher

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

LCR was expressed in ... whole seedlings

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of AtPIN1 ... were decreased in ... 35S::MIR394a

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394a ... cotyledons ... displayed GUS activities

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of ... AtPIN7 were decreased in ... 35S::m5LCR plants

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of ... AtPIN3 ... were decreased in ... 35S::m5LCR plants

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

pDR5::GUS expression ... in leaves of ... 45 days old ... 35S::m5LCR plants ... mainly occurred along the leaf margin ...

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394a ... leaves ... strong GUS staining was detected and most of GUS activities were found at conductive tissues

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of ... AtPIN4 ... were decreased in ... 35S::m5LCR plants

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394b ... cotyledons ... displayed GUS activities

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

pDR5::GUS expression ... in leaves of ... 45 days old lcr ... was considerably higher than that of WT

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

AXR3 ... basal level of the gene expression ... were significantly lower in 35S::m5LCR plants

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

pDR5::GUS expression ... in leaves of ... 45 days old lcr ... mainly occurred along the leaf margin

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of ... AtPIN3 ... were decreased in ... 35S::MIR394a

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

there was no change in LCR expression in response to IAA exposure

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

IAMT1 ... basal level ... was slightly higher in 35S::MIR394a plants than in wild type

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

In wild type ... leaves ... the pDR5::GUS expression ... was restricted to the ... hydathodes

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

LCR transcript levels ... in lcr mutant was 17% of that in the wild type

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

IAMT1 ... basal level of the gene expression ... were significantly lower in 35S::m5LCR plants

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

miR394b ... accumulates in ... whole seedlings

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

LCR transcript ... in 35S::MIR394a/b plants was drastically decreased

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

LCR was expressed in ... leaves

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

miR394a ... accumulates in ... whole seedlings

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394b ... leaves ... strong GUS staining was detected and most of GUS activities were found at conductive tissues

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

pDR5::GUS expression ... in leaves of ... 45 days old ... 35S::m5LCR plants was considerably higher than that of WT

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

AXR3 ... basal level ... was slightly higher in 35S::MIR394a plants than in wild type

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394b ... at very early stage (four days) of leaf development, no GUS staining was detected

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

in ... pLCR::m5LCR ... LCR expression was 6.4-7.7 folds higher than in the wild type

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

in MIM394 transgenic lines ... the abundance of LCR transcripts ... was considerably higher

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394a ... was strongly expressed in the transgenic plants ... 35S::MIR394a/b

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

MIR394a ... at very early stage (four days) of leaf development, no GUS staining was detected

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

miR394a ... accumulates in ... leaves

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

expression of AtPIN1 ... were decreased in ... 35S::m5LCR plants

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

miR394b ... accumulates in ... leaves

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

that the level of LCR mRNA ... in 35S::LCR plants was increased only by 1.7-2.5 folds compared with ... WT

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

IAA3 ... basal level of the gene expression ... were significantly lower in 35S::m5LCR plants

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

the level of LCR mRNA in 35S::m5LCR plants was 34.4-40.5 folds higher than those of WT

Song JB, Huang SQ, Dalmay T, Yang ZM - Regulation of Leaf Morphology by MicroRNA394 and Its Target LEAF CURLING RESPONSIVENESS

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  • Gene expression

analyzed the expression profile of a set of 28 cell cycle marker and growth-related genes (Table S3). WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37). Most of the G2/M-phase–related genes analyzed, such as CYCB1;1, cyclin-dependent kinase CDKB2;1, and 3xHMG-box2 (38⇓–40), were significantly down-regulated at all three developmental time points in samba mutants, whereas genes encoding cell cycle inhibitors, such as KIP-RELATED PROTEIN 1, SIAMESE RELATED 1 (SMR1), SMR2, and SMR3, were up-regulated, in particular at 8 DAS

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

To study the expression pattern of SAMBA, a 1.8-kb fragment upstream of the ATG codon of the SAMBA gene was fused to a β-glucuronidase (GUS)-GFP tandem reporter cassette and introduced into Arabidopsis plants. SAMBA expression was high during embryogenesis (Fig. 1 B and C) but decreased gradually when seedlings germinated (Fig. 1 D and F). At 3 d after stratification (DAS) (Fig. 1D), GUS staining was still well visible in all tissues;

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

To study the expression pattern of SAMBA, a 1.8-kb fragment upstream of the ATG codon of the SAMBA gene was fused to a β-glucuronidase (GUS)-GFP tandem reporter cassette and introduced into Arabidopsis plants. SAMBA expression was high during embryogenesis (Fig. 1 B and C) but decreased gradually when seedlings germinated (Fig. 1 D and F). At 3 d after stratification (DAS) (Fig. 1D), GUS staining was still well visible in all tissues; at 5 DAS, it diminished and became patchy in root tissues (Fig. 1E); finally, at 8 DAS, it was present only in the hypocotyls

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37). Most of the G2/M-phase–related genes analyzed, such as CYCB1;1, cyclin-dependent kinase CDKB2;1, and 3xHMG-box2 (38⇓–40), were significantly down-regulated at all three developmental time points in samba mutants, whereas genes encoding cell cycle inhibitors, such as KIP-RELATED PROTEIN 1, SIAMESE RELATED 1 (SMR1), SMR2, and SMR3, were up-regulated, in particular at 8 DAS

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

Expression of the pCYCB1;1:CYCB1;1 D-box-GUS/GFP construct allowed us to estimate the rate of CYCB1;1 degradation in proliferating cells (28, 41). The CYCB1;1 degradation rate did not differ in the leaf primordia or in the RAM of WT and samba mutant plants (Fig. S4 D and E), suggesting that SAMBA specifically targets A2-type and not B-type cyclins for degradation

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

analyzed the expression profile of a set of 28 cell cycle marker and growth-related genes (Table S3). WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37 ... A similar expression profile was found for the SHOOT MERISTEMLESS and EXPANSIN11 (EXP11

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

To study the expression pattern of SAMBA, a 1.8-kb fragment upstream of the ATG codon of the SAMBA gene was fused to a β-glucuronidase (GUS)-GFP tandem reporter cassette and introduced into Arabidopsis plants. SAMBA expression was high during embryogenesis (Fig. 1 B and C) but decreased gradually when seedlings germinated (Fig. 1 D and F). At 3 d after stratification (DAS) (Fig. 1D), GUS staining was still well visible in all tissues; at 5 DAS, it diminished and became patchy in root tissues

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

To study the expression pattern of SAMBA, a 1.8-kb fragment upstream of the ATG codon of the SAMBA gene was fused to a β-glucuronidase (GUS)-GFP tandem reporter cassette and introduced into Arabidopsis plants. SAMBA expression was high during embryogenesis (Fig. 1 B and C) but decreased gradually when seedlings germinated (Fig. 1 D and F

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37). Most of the G2/M-phase–related genes analyzed, such as CYCB1;1, cyclin-dependent kinase CDKB2;1, and 3xHMG-box2 (38⇓–40), were significantly down-regulated at all three developmental time points in samba mutants, whereas genes encoding cell cycle inhibitors, such as KIP-RELATED PROTEIN 1, SIAMESE RELATED 1 (SMR1), SMR2, and SMR3, were up-regulated, in particular at 8 DAS

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

To study the expression pattern of SAMBA, a 1.8-kb fragment upstream of the ATG codon of the SAMBA gene was fused to a β-glucuronidase (GUS)-GFP tandem reporter cassette and introduced into Arabidopsis plants. SAMBA expression was high during embryogenesis (Fig. 1 B and C) but decreased gradually when seedlings germinated (Fig. 1 D and F). At 3 d after stratification (DAS) (Fig. 1D), GUS staining was still well visible in all tissues; at 5 DAS, it diminished and became patchy in root tissues (Fig. 1E); finally, at 8 DAS, it was present only in the hypocotyls (Fig. 1F); and, at later stages of development, the expression was only observed in pollen grains

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37). Most of the G2/M-phase–related genes analyzed, such as CYCB1;1, cyclin-dependent kinase CDKB2;1, and 3xHMG-box2 (38⇓–40), were significantly down-regulated at all three developmental time points in samba mutants, whereas genes encoding cell cycle inhibitors, such as KIP-RELATED PROTEIN 1, SIAMESE RELATED 1 (SMR1), SMR2, and SMR3, were up-regulated, in particular at 8 DAS

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

analyzed the expression profile of a set of 28 cell cycle marker and growth-related genes (Table S3). WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37). Most of the G2/M-phase–related genes analyzed, such as CYCB1;1, cyclin-dependent kinase CDKB2;1, and 3xHMG-box2 (38⇓–40), were significantly down-regulated at all three developmental time points in samba mutants, whereas genes encoding cell cycle inhibitors, such as KIP-RELATED PROTEIN 1, SIAMESE RELATED 1 (SMR1), SMR2, and SMR3, were up-regulated, in particular at 8 DAS

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

analyzed the expression profile of a set of 28 cell cycle marker and growth-related genes (Table S3). WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37 ... A similar expression profile was found for the SHOOT MERISTEMLESS and EXPANSIN11 (EXP11

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

analyzed the expression profile of a set of 28 cell cycle marker and growth-related genes (Table S3). WT and samba plants were grown in vitro for 8, 10, and 12 DAS, and RNA levels in dissected leaves 1 and 2 were measured with the nCounter system that allows a direct multiplexed analysis of selected transcripts (37). Most of the G2/M-phase–related genes analyzed, such as CYCB1;1, cyclin-dependent kinase CDKB2;1, and 3xHMG-box2 (38⇓–40), were significantly down-regulated at all three developmental time points in samba mutants, whereas genes encoding cell cycle inhibitors, such as KIP-RELATED PROTEIN 1, SIAMESE RELATED 1 (SMR1), SMR2, and SMR3, were up-regulated, in particular at 8 DAS

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

To study the expression pattern of SAMBA, a 1.8-kb fragment upstream of the ATG codon of the SAMBA gene was fused to a β-glucuronidase (GUS)-GFP tandem reporter cassette and introduced into Arabidopsis plants. SAMBA expression was high during embryogenesis (Fig. 1 B and C) but decreased gradually when seedlings germinated (Fig. 1 D and F

Eloy NB, Gonzalez N, Van Leene J, Maleux K, Vanhaeren H, De Milde L, Dhondt S, Vercruysse L, Witters E, Mercier R, Cromer L, Beemster GT, Remaut H, Van Montagu MC, De Jaeger G, Ferreira PC, Inzé D - SAMBA, a plant-specific anaphase-promoting complex/cyclosome regulator is involved in early development and A-type cyclin stabilization

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  • Gene expression

qRT-PCR results using dissected SAM from 10-day-old seedlings indicated that ... CLV3 maintained slightly higher mRNA expression levels in ccs52a2-3 mutants when compared with WT

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

To determine the expression region of CCS52A2 mRNA, in situ hybridization was carried out ... strong signals in the ... lateral leaf primordia in 8-day-old seedlings

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

Since CCS52A2 acts at G2/M to control mitosis exit and endocycle entry, we checked the expression of the G2/M transition reporter gene CYCB 1;1 in ccs52a2-3 mutants ... qRT PCR was carried out to quantify the expression levels of CYCB1;1 in the shoot. The seedling SAM of ccs52a2-3 showed lower expression level in comparison with that of WT

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

the pCLV3::GUS location in ccs52a2-3 SAM exhibited two nearby domains of CLV3 expression in 6 of 22 8-day–old seedlings examined (Figure 6M), which indicated that two separate WUS-CLV3 supporting systems of meristem organization had been established as early as the 8-day-old stage. It was also discovered that CLV3 showed broad expression in some first layer cells that flank the major expression zone in 7 of 22 SAMs of ccs52a2-3 seedlings (Figure 6N), while the remaining 9 of 22 ccs52a2-3 SAMs exhibited a single CLV3 expression region

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

RT-PCR analysis indicated that CCS52A2 had a broad expression profile including roots, rosette leaves, stem, cauline leaves, inflorescences and siliques

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

The expression of CCS52A2 was also examined in 8-day-old plants by a histochemical GUS assays, using transgenic plants expressing the CCS52A2::GUS fusion protein under the control of the CCS52A2 native promoter. Strong expression was observed in shoot apices

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

The expression of WUS in WT is restricted in a small region composed of a few cells in the center of the SAM (Figure 6A, D) [4]. However, in the SAM of 8-day-old ccs52a2-3 seedlings, WUS expressed in one enlarged domain at higher levels (Figure 6B), or in two distinct nearby domains (Figure 6C), suggesting that enlarged or multiple OC zones are formed, which is consistent with the broadening SAMs and bifurcations of the stem

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

The pWUS::GUS assay presented a similar expression pattern as RNA in situs: enlarged and sometimes dual expression domains in the ccs52a2-3 background

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

To determine the expression region of CCS52A2 mRNA, in situ hybridization was carried out. The results were consistent with that of the GUS assay, presenting strong signals in the entire SAM

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

In WT, CLV3 mRNA accumulates in a small zone of cells in the first three layers at the meristem apex (Figure 6G, I) [6]. Compared with WT, the SAMs of 8-day-old ccs52a2-3 seedlings that were examined exhibited increased CLV3 expression

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

qRT-PCR results using dissected SAM from 10-day-old seedlings indicated that WUS was expressed at a higher level in ccs52a2-3

Liu Y, Ye W, Li B, Zhou X, Cui Y, Running MP, Liu K - CCS52A2/FZR1, a cell cycle regulator, is an essential factor for shoot apical meristem maintenance in Arabidopsis thaliana

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  • Gene expression

Expression of the PEN2 transcripts was observed in roots, young seedlings, and siliques

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

THAS, which belongs to Arabidopsis clade II OSCs, including MRN1, was fused to eGFP and introduced into tobacco protoplasts. The green fluorescent signals from eGFP:THAS were also observed in the ER

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

To investigate the temporal and spatial expression patterns of the MRN1 gene, transgenic Arabidopsis harboring approximately 5.4 kb of the promoter region fused to a GUS reporter gene was generated. Expression of GUS was exclusively detected in the meristematic zones of shoots and roots

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

The expression pattern of the MRN1 gene, which is specifically expressed in roots and seedlings, was similar to that of ... pentacyclic triterpene synthase 3 (PEN3

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

in mrn1, the expression levels of the EXP5 ... not altered when compared with the wild type

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

To investigate the subcellular localization of MRN1, the plasmid 35Spro:eGFP:MRN1 encoding enhanced green fluorescence protein (eGFP) fused to N-terminal region of MRN1 under the control of the CaMV35S promoter was introduced into tobacco leaf protoplasts, and the subcellular localization of eGFP:MRN1 fusion proteins was analyzed by confocal laser scanning microscopy. The green fluorescent signals from the eGFP:MRN1 were merged with the red fluorescent signals from the ER marker, Brassica rapa fatty acid desaturase 2:RFP (BrFAD2:RFP, Jung et al., 2011) (Figure 10a–c), suggesting that MRN1 is localized in the ER

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

The expression pattern of the MRN1 gene, which is specifically expressed in roots and seedlings, was similar to that of THAS/PEN4

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

The expression pattern of the MRN1 gene, which is specifically expressed in roots and seedlings, was similar to that of ... PEN1

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

in mrn1, the expression levels of the ... EXP10 ... not altered when compared with the wild type

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

MRN1 gene, which is specifically expressed in roots and seedlings

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

A RT-PCR analysis of the transcripts of the genes related to flowering time control in the wild type and mrn1 showed that the transcript levels of various flowering time genes were affected (Figure S1). Among them, the transcript levels of the FLC (Flowering Locus C) gene encoding a repressor of flowering were highly elevated, indicating that the late-flowering phenotype of mrn1 might be in part due to overexpression of FLC

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

in mrn1, the expression levels of the ... EXP6 ... not altered when compared with the wild type

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

the expression of genes involved in sterol and brassinosteroid biosynthesis was not altered in the mrn1

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

ubiquitous expression of CAS1

Go YS, Lee SB, Kim HJ, Kim J, Park HY, Kim JK, Shibata K, Yokota T, Ohyama K, Muranaka T, Arseniyadis S, Suh MC - Identification of marneral synthase, which is critical for growth and development in Arabidopsis

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  • Gene expression

semi-quantitative RT-PCR was performed ... AtCSP3 transcript was not detected in atcsp3-1

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

ROT3 ... was not altered relative to the wild type ... in atcsp3 mutants

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

AN ... not altered in atcsp3 mutants

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

the qRT-PCR results indicated that ... AtCSP3 ... elevated expression in meristematic ... tissues

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

AN3 ... not altered in atcsp3 mutants

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

transcript levels of LNG1 were clearly reduced in atcsp3-2 ... at 28 DAG

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

To determine the subcellular localization of the AtCSP3 full-length protein, its complete coding sequence was fused to the N-terminus of sGFP(S65T) which was driven by a CaMV 35S promoter (Fig. 7A). The sGFP(S65T) and 35S:AtCSP3:sGFP plasmids were bombarded into onion epidermal cells with a particle bombardment delivery system and cells that were transiently expressing GFP were visualized with confocal microscopy ... transiently expressed 35S:AtCSP3:sGFP fusion proteins fluoresced in ... the cytosol

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

LNG2 gene expression in ... atcsp3-1 did not show the same pattern of gene expression as LNG1

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

LNG2 gene expression in atcsp3-2 ... did not show the same pattern of gene expression as LNG1

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

To determine the subcellular localization of the AtCSP3 full-length protein, its complete coding sequence was fused to the N-terminus of sGFP(S65T) which was driven by a CaMV 35S promoter (Fig. 7A). The sGFP(S65T) and 35S:AtCSP3:sGFP plasmids were bombarded into onion epidermal cells with a particle bombardment delivery system and cells that were transiently expressing GFP were visualized with confocal microscopy ... transiently expressed 35S:AtCSP3:sGFP fusion proteins fluoresced in ... the ... nucleus

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

semi-quantitative RT-PCR was performed ... AtCSP3 transcript was not detected in ... atcsp3-2

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

transcript levels of LNG1 were clearly reduced in ... atcsp3-1 at 28 DAG

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

CYCD3;1 ... not altered in atcsp3 mutants

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

Quantitative real-time PCR (qRT-PCR) confirmed the expression of AtCSP3 transcripts in all vegetative and reproductive tissues

Yang Y, Karlson D - Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion

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  • Gene expression

CESA4 ... up-regulated more than sixfold by constitutive or inducible over-expression of MYB46 ... The expression patterns of the CESA genes were correlated with MYB46 expression levels

Kim WC, Ko JH, Kim JY, Kim JM, Bae HJ, Han KH - MYB46 directly regulates the gene expression of secondary wall-associated cellulose synthases in Arabidopsis

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  • Gene expression

CESA8 ... co-expressed with MYB46

Kim WC, Ko JH, Kim JY, Kim JM, Bae HJ, Han KH - MYB46 directly regulates the gene expression of secondary wall-associated cellulose synthases in Arabidopsis

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  • Gene expression

CESA4 ... co-expressed with MYB46

Kim WC, Ko JH, Kim JY, Kim JM, Bae HJ, Han KH - MYB46 directly regulates the gene expression of secondary wall-associated cellulose synthases in Arabidopsis

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  • Gene expression

CESA7 ... up-regulated more than sixfold by constitutive or inducible over-expression of MYB46 ... The expression patterns of the CESA genes were correlated with MYB46 expression levels

Kim WC, Ko JH, Kim JY, Kim JM, Bae HJ, Han KH - MYB46 directly regulates the gene expression of secondary wall-associated cellulose synthases in Arabidopsis

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  • Gene expression

CESA8 ... up-regulated more than sixfold by constitutive or inducible over-expression of MYB46 ... The expression patterns of the CESA genes were correlated with MYB46 expression levels

Kim WC, Ko JH, Kim JY, Kim JM, Bae HJ, Han KH - MYB46 directly regulates the gene expression of secondary wall-associated cellulose synthases in Arabidopsis

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  • Gene expression

CESA7 ... co-expressed with MYB46

Kim WC, Ko JH, Kim JY, Kim JM, Bae HJ, Han KH - MYB46 directly regulates the gene expression of secondary wall-associated cellulose synthases in Arabidopsis

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  • Gene expression

in ... prps1-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including the reaction centre of PSI (PsaA ... also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

in ... prps17-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including the reaction centre of PSI ... Psa ... B ... also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbD in prpl24-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbB ... in ... prps1-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

prps17-1 ... increase was also observed for ... transcripts of the psaA–psaB and atpB–atpE operons, monitored by employing psaB- and atpB-specific probes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

in ... prps17-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as ... PsaO

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbD in ... prps17-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

in ... prps1-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including the ... large subunit of Rubisco (RbcL) also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

prps1-1 ... increase was also observed for ... transcripts of the psaA

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

only one transcript variant was detectable for ... PRPL24 (PRPL24.1) in both leaves and siliques

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

in ... prps1-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including ... the β-subunit of ATPase (ATPase β) ... also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits PsbA ... in ... prps17-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbC ... in ... prps17-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbC ... in prpl24-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps1-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as ... PsaO

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps1-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including the reaction centre of PSI ... Psa ... B ... also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps17-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including the ... PsaA ... also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps1-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as ... PsaF

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps17-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as PsaD

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbC ... in ... prps1-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in prpl24-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as PsaD

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Other plastid-encoded subunits of thylakoid multiprotein complexes, including the reaction centre of PSI ... PsaA ... also showed marked declines in level in mutant plants, particularly in prpl24-1 homozygotes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps17-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including ... the β-subunit of ATPase (ATPase β) ... also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits PsbA ... in prpl24-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

prps17-1 ... increase was also observed for rbcL mRNA

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbB ... in ... prps17-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbB ... in prpl24-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Other plastid-encoded subunits of thylakoid multiprotein complexes, including ... cytochrome b6 (PetB ... also showed marked declines in level in mutant plants, particularly in prpl24-1 homozygotes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Other plastid-encoded subunits of thylakoid multiprotein complexes, including the reaction centre of PSI ... Psa ... B ... also showed marked declines in level in mutant plants, particularly in prpl24-1 homozygotes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps17-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including ... the large subunit of Rubisco (RbcL) also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

Real-time PCR analyses indicate that both PRPL1 splicing variants are present in leaves and developing siliques, with PRPL1.1 being more abundant than PRPL1.2

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

prpl24-1 ... increase was also observed for rbcL mRNA

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

prps17-1 ... The steady-state level of the psbA transcript was increased by a factor of almost two in mutant leaves relative to WT plants

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

only one transcript variant was detectable for PRPL4 (PRPL4.1) ... in both leaves and siliques

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

prpl24-1 ... The steady-state level of the psbA transcript was increased by a factor of almost two in mutant leaves relative to WT plants

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Other plastid-encoded subunits of thylakoid multiprotein complexes, including the ... β-subunit of ATPase (ATPase β) ... also showed marked declines in level in mutant plants, particularly in prpl24-1 homozygotes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in prpl24-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as ... PsaF

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

prps1-1 ... The steady-state level of the psbA transcript was increased by a factor of almost two in mutant leaves relative to WT plants ... psaA–psaB and atpB–atpE operons, monitored by employing psaB- and atpB-specific probes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps1-1 ... Other plastid-encoded subunits of thylakoid multiprotein complexes, including the ... cytochrome b6 (PetB ... also showed marked declines in level

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits PsbA ... in ... prps1-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

prps1-1 ... increase was also observed for rbcL mRNA

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Other plastid-encoded subunits of thylakoid multiprotein complexes, including ... the large subunit of Rubisco (RbcL) also showed marked declines in level in mutant plants, particularly in prpl24-1 homozygotes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps17-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as ... PsaF

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in ... prps1-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as PsaD

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

prpl24-1 ... increase was also observed for ... transcripts of the psaA–psaB and atpB–atpE operons, monitored by employing psaB- and atpB-specific probes

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

Quantification of banding patterns on Coomassie-stained 2D BN/SDS polyacrylamide (PA) gels revealed marked reductions in levels of the plastid-encoded PSII core subunits ... PsbD in ... prps1-1

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

Visit the PubMed Article

  • Gene expression

in prpl24-1 ... decrease in amounts of nuclear-encoded PSI subunits, such as ... PsaO

Romani I, Tadini L, Rossi F, Masiero S, Pribil M, Jahns P, Kater M, Leister D, Pesaresi P - Versatile roles of Arabidopsis plastid ribosomal proteins in plant growth and development

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  • Gene expression

To test the localization of FtsHi1, we generated a 35S:FtsHi1-YFP construct and expressed it in ftsHi1-1. The transgene complemented the chloroplast morphology phenotype in several transgenic lines (Figure 2a and Figure S1), indicating the FtsHi1–yellow fluorescent protein (YFP) fusion protein is functional. In complemented lines, the YFP signal localized to the chloroplast periphery (Figure 2b, bottom), whereas in plants expressing a 35S:YFP control (Zhang et al., 2009) the YFP signal was in the cytosol and nucleus (Figure 2b, top). Combined with the presence of predicted transmembrane domains (Figure 1b), these results suggest that FtsHi1–YFP localizes to the chloroplast envelope, consistent with proteomic data at AT_CHLORO (Ferro et al., 2010) indicating that 99.6% of the FtsHi1 protein is in the envelope fraction. Based on the presence of the predicted transit peptide, it is likely that FtsHi1 resides in the inner envelope

Kadirjan-Kalbach DK, Yoder DW, Ruckle ME, Larkin RM, Osteryoung KW - FtsHi1/ARC1 is an essential gene in Arabidopsis that links chloroplast biogenesis and division

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  • Gene expression

in ftsHi1-1 mutants ... First, we examined the filament localization and morphology of FtsZ using immunofluorescence microscopy. We found that FtsZ localized to single mid-plastid rings as in the WT, and FtsZ filament morphology was not altered

Kadirjan-Kalbach DK, Yoder DW, Ruckle ME, Larkin RM, Osteryoung KW - FtsHi1/ARC1 is an essential gene in Arabidopsis that links chloroplast biogenesis and division

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  • Gene expression

because overexpression of the outer envelope protein PLASTID DIVISION 2 (PDV2) (Miyagishima et al., 2006) results in smaller and more numerous chloroplasts than in the WT (Okazaki et al., 2009), reminiscent of ftsHi1-1 (Pyke and Leech, 1992, 1994) (Figure 1a), we compared PDV2 protein levels in ftsHi1-1 and the WT by immunoblotting. No obvious difference in PDV2 level was detected at any stage tested

Kadirjan-Kalbach DK, Yoder DW, Ruckle ME, Larkin RM, Osteryoung KW - FtsHi1/ARC1 is an essential gene in Arabidopsis that links chloroplast biogenesis and division

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  • Gene expression

RpoTp/SCA3 was found significantly up-regulated in ... mda1-2 ... when compared with Col-0

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

RUG2 ... largely down-regulated in response ... to ... salt

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

SOLDAT10 ... largely down-regulated in response to ... salt

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

in mda1-1 ... the expression of ... accD ... up-regulated

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

down-regulation of MDA1 expression in mda1-1 ... compared with Col-0

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

psbA was up-regulated in mda1-1 soldat10 compared with Col-0 ... or Ler

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

in mda1-1 ... the expression of ... rps18 ... up-regulated

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

MDA1 transcripts ... highest in ... vegetative leaves

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

SOLDAT10 ... largely down-regulated in response to ABA

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

In mda1-1 rug2-2 compared with Col-0 ... psbA ... up-regulated

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

RUG2 ... largely down-regulated in response to ABA

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

in mda1-1 ... the expression of ... clpP [1.7-fold down-regulated

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

MDA1 transcripts were detected in all organs analyzed

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

RpoTp/SCA3 was found significantly up-regulated in mda1-1 ... when compared with Col-0

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

in mda1-1 ... the expression of psbA ... up-regulated

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

in mda1-1 ... the transcript levels of matk ... were only slightly affected

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

In mda1-1 rug2-2 compared with Col-0, RpoTp/SCA3 ... up-regulated

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

down-regulation of MDA1 expression in ... mda1-2 compared with Col-0

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

in mda1-1 ... the transcript levels of ... rpoB ... were only slightly affected

Robles P, Micol JL, Quesada V - Arabidopsis MDA1, a nuclear-encoded protein, functions in chloroplast development and abiotic stress responses

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  • Gene expression

In ... lon1 ... mutants ... were increased in abundance according to DIGE and iTRAQ experiments ... monodehydroascorbate reductase (At1g63940 ... in lon1-2

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

Between both DIGE and iTRAQ data, lon1-1 had six different TCA cycle enzyme subunits that were increased in abundance including ... dihydrolipoamide S-acetyltransferase (At3g13930

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants, HSP60 (At2g33210 ... were increased in abundance according to DIGE and iTRAQ experiments

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

Between both DIGE and iTRAQ data, lon1-1 had six different TCA cycle enzyme subunits that were increased in abundance including ... succinyl-CoA ligase (At2f20420

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1-1 ... mutants ... were increased in abundance according to DIGE and iTRAQ experiments ... At3g27280

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

Between both DIGE and iTRAQ data, lon1-1 had six different TCA cycle enzyme subunits that were increased in abundance including ... isocitrate dehydrogenase (At3g09810

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants ... HSP70 ... At5g09590) were increased in abundance according to DIGE and iTRAQ experiments ... At5g09590

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

Between both DIGE and iTRAQ data, lon1-1 had ... had six different ... different TCA cycle enzyme subunits that were increased in abundance including; mitochondrial lipoamide dehydrogenase (At1g48030

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

Between both DIGE and iTRAQ data, lon1-1 had six different TCA cycle enzyme subunits that were increased in abundance including ... malate dehydrogenase (At1g53240

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

The lon1-2 mutant also had enzymes increased in abundance ... including ... 2-oxoglutarate dehydrogenase (At5g65750

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants ... several ... enzymes ... such as ... formate dehydrogenase (At5g14740 ... had lower abundances

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1-1 ... mutants ... were increased in abundance according to DIGE and iTRAQ ... experiments ... At5g40770

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants ... several enzymes ... such as glutamate dehydrogenase (At5g18170 ... had lower abundances

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1-1 ... 1 ... mutants ... were increased in abundance according to DIGE and iTRAQ ... At4g28510

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

The lon1-2 mutant also had enzymes increased in abundance ... including ... isocitrate dehydrogenase ... At5g03290

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1-1 ... mutants ... were increased in abundance according to DIGE and iTRAQ experiments ... At5g06290

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants ... HSP70 (At4g37910 ... were increased in abundance according to DIGE and iTRAQ experiments

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants ... HSP60 ... At3g23990 ... were increased in abundance according to DIGE and iTRAQ experiments

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants ... several enzymes ... such as ... GABA-T (4-aminobutyrate transaminase) (At3g22200 ... had lower abundances

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

In ... lon1 ... mutants ... several enzymes ... such as glutamate ... such ... dehydrogenase ... At5g07440 ... had lower abundances

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

The lon1-2 mutant also had enzymes increased in abundance including ... isocitrate dehydrogenase (At4g36260

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

Between both DIGE and iTRAQ data, lon1-1 had six different TCA cycle enzyme subunits that were increased in abundance including ... 2-oxoglutarate dehydrogenase (At3g55410

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

The lon1-2 mutant also had enzymes increased in abundance including ... 2-oxoglutarate dehydrogenase ... At3g55410

Solheim C, Li L, Hatzopoulos P, Millar AH - Loss of Lon1 in Arabidopsis changes the mitochondrial proteome leading to altered metabolite profiles and growth retardation without an accumulation of oxidative damage

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  • Gene expression

The transcript levels of ... AtARC6 ... were significantly reduced in ga1-3 relative to the wild type ... The application of exogenous GA restored the expression of chloroplast division genes in the ga1-3 mutant to approximately wild-type levels

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

We next performed quantitative RT-PCR to measure the transcript levels of the genes related to chloroplast division, cell division and cell expansion. Our results showed that the majority of transcriptional upregulation for selected chloroplast division genes and cell division genes occurred between hours 24 and 48 (Figure 4c,e), whereas the transcriptional upregulation for expansin genes ... AtEXPA8 occurred between hours 0 and 2 (Figure 4g), suggesting that the cell expansion-related genes tended to be upregulated much earlier and more significantly than genes related to chloroplast division and cell division

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

the transcript levels of ... AtARC5 ... were reduced in gai-1

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

The transcript levels of AtPDV1 ... were significantly reduced in ga1-3 relative to the wild type ... The application of exogenous GA restored the expression of chloroplast division genes in the ga1-3 mutant to approximately wild-type levels

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

the transcript levels of ... AtPDV1 ... were reduced in gai-1

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

The transcript levels of ... AtFtsZ2-1 were significantly reduced in ga1-3 relative to the wild type ... The application of exogenous GA restored the expression of chloroplast division genes in the ga1-3 mutant to approximately wild-type levels

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

quantitative RT-PCR analyses showed that the transcript levels of ARC5 in rga-24 gai-t6 can be partially inhibited by PAC

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

The transcript levels of ... AtPDV2 ... were significantly reduced in ga1-3 relative to the wild type ... The application of exogenous GA restored the expression of chloroplast division genes in the ga1-3 mutant to approximately wild-type levels

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

the transcript levels of all the selected chloroplast division genes in the della mutant are comparable with those of the wild type

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

Quantitative RT-PCR analyses showed that the ARC5 level, but not those of other chloroplast division genes, was significantly increased in rga-24 gai-t6

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

The transcript levels of ... AtARC5 ... were significantly reduced in ga1-3 relative to the wild type ... The application of exogenous GA restored the expression of chloroplast division genes in the ga1-3 mutant to approximately wild-type levels

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

the transcriptional levels of all the selected chloroplast division genes in the della mutant were comparable with those of wild-type plants

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

the transcript levels of ... AtFtsZ2-1 were reduced in gai-1

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

the transcript levels of ... AtPDV2 ... were reduced in gai-1

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

We next performed quantitative RT-PCR to measure the transcript levels of the genes related to chloroplast division, cell division and cell expansion. Our results showed that the majority of transcriptional upregulation for selected chloroplast division genes and cell division genes occurred between hours 24 and 48 (Figure 4c,e), whereas the transcriptional upregulation for expansin genes AtEXPA1 ... occurred between hours 0 and 2 (Figure 4g), suggesting that the cell expansion-related genes tended to be upregulated much earlier and more significantly than genes related to chloroplast division and cell division

Jiang X, Li H, Wang T, Peng C, Wang H, Wu H, Wang X - Gibberellin indirectly promotes chloroplast biogenesis as a means to maintain the chloroplast population of expanded cells

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  • Gene expression

BAT1-GFP ... localized in the nucleus

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

The expression of BAT1 was slightly, but not significantly, up-regulated by epiBL

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

BAT1 expression was significantly induced by auxin

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

expression of BAT1 was substantially decreased in the loss-of-function arf19-1 mutant

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

To understand the dynamics of BR homeostasis by auxin, we examined the kinetics of changes in expression of a set of BR-related genes. Upon auxin treatment, BRX, a positive regulator of BR biosynthesis (Mouchel et al., 2006), reached its highest induction 30–60 min after auxin treatment and then gradually diminished (Figure 6e). BAS1, encoding a BR inactivation enzyme involved in hydroxylation of active BRs, showed a similar activation pattern to BRX upon auxin application. However, at 3 h after auxin treatment, levels of the BAS1 transcript started to increase again

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

To understand the dynamics of BR homeostasis by auxin, we examined the kinetics of changes in expression of a set of BR-related genes. Upon auxin treatment, BRX, a positive regulator of BR biosynthesis (Mouchel et al., 2006), reached its highest induction 30–60 min after auxin treatment and then gradually diminished

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

We further analyzed subcellular fractions containing the ER using anti-GFP antibodies for BAT1-GFP and anti-calreticulin (CRT) antibodies for the ER marker (Figure S1d). Consistent with BAT1-GFP imaging, BAT1 proteins were detected in the ER fraction

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

We then determined the expression pattern of BAT1 using transgenic lines harboring a transcriptional reporter construct (proBAT1:GUS) in which 2.0 kb of the BAT1 promoter was fused to the ß-glucuronidase (GUS) gene. Promoter activity was found to be present in most organs, especially young tissues and vascular bundles (Figure 3b–d). In young seedlings, GUS staining was mainly observed in the vascular cylinder of ... leaves

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

auxin-dependent activation of BAT1 was nearly abolished in tir1-1 (Figure 6d), a loss-of-function mutant of the TIR1 auxin receptor

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

To understand the dynamics of BR homeostasis by auxin, we examined the kinetics of changes in expression of a set of BR-related genes ... induction of the UGT73C5 ... that encode the UDP-glycosyltransferases involved in BR inactivation by glucosylation began to slightly increase 3 h after auxin application and then decreased

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

To understand the dynamics of BR homeostasis by auxin, we examined the kinetics of changes in expression of a set of BR-related genes ... induction of the ... UGT73C6 ... that encode the UDP-glycosyltransferases involved in BR inactivation by glucosylation began to slightly increase 3 h after auxin application and then decreased

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

To understand the dynamics of BR homeostasis by auxin, we examined the kinetics of changes in expression of a set of BR-related genes ... the induction of BAT1 was slightly delayed, reaching its peak at 60–90 min after auxin treatment

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

we first examined its subcellular localization using GFP-tagged BAT1 proteins and confocal laser scanning microscopy. BAT1-GFP co-localized with RFP-tagged BiP, an ER marker protein

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

We then determined the expression pattern of BAT1 using transgenic lines harboring a transcriptional reporter construct (proBAT1:GUS) in which 2.0 kb of the BAT1 promoter was fused to the ß-glucuronidase (GUS) gene. Promoter activity was found to be present in most organs, especially young tissues and vascular bundles (Figure 3b–d). In young seedlings, GUS staining was mainly observed in the vascular cylinder of cotyledons

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

To understand the dynamics of BR homeostasis by auxin, we examined the kinetics of changes in expression of a set of BR-related genes ... The transcript of SHK1, the closest homolog of BAS1, was highly induced at 3 h after auxin application, and this induction was sustained until 24 h after auxin treatment

Choi S, Cho YH, Kim K, Matsui M, Son SH, Kim SK, Fujioka S, Hwang I - BAT1, a putative acyltransferase, modulates brassinosteroid levels in Arabidopsis

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  • Gene expression

Optical sections through pSUC5/tmGFP9 embryos confined pSUC5 activity specifically on the epidermis of the outer surface of the cotyledons

Pommerrenig B, Popko J, Heilmann M, Schulmeister S, Dietel K, Schmitt B, Stadler R, Feussner I, Sauer N - SUCROSE TRANSPORTER 5 supplies Arabidopsis embryos with biotin and affects triacylglycerol accumulation

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  • Gene expression

We generated two pSUC5/reporter lines under the control of a 2030 bp SUC5 promoter ... we observed pSUC5 activity for both constructs during the later stages of embryo development

Pommerrenig B, Popko J, Heilmann M, Schulmeister S, Dietel K, Schmitt B, Stadler R, Feussner I, Sauer N - SUCROSE TRANSPORTER 5 supplies Arabidopsis embryos with biotin and affects triacylglycerol accumulation

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  • Gene expression

In addition, we analysed the subcellular localization of the SUC5 protein by transiently transforming Arabidopsis protoplasts with N- and C-terminal GFP fusion constructs of SUC5. Both fusion proteins localized to the plasma membrane (Figure 1j,k). We verified this localization in particle-bombarded leek (Allium ampeloprasum) epidermis cells (Figure 1l,m)

Pommerrenig B, Popko J, Heilmann M, Schulmeister S, Dietel K, Schmitt B, Stadler R, Feussner I, Sauer N - SUCROSE TRANSPORTER 5 supplies Arabidopsis embryos with biotin and affects triacylglycerol accumulation

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  • Gene expression

we examined ... pCLV3:GUS accumulation in 4- and 5-day-old minu1 minu2 shoot apices. We found no detectable ... pCLV3:GUS signal at day 4 ... no pCLV3:GUS expression visible at day 5

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

Expression of pCLV3:GUS, by contrast, was barely detectable in 6-day-old minu1 minu2 SAMs

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

GFP-MINU2 was nuclear localized

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

we conducted quantitative RT-PCR (qRT-PCR) using RNA extracted from dissected shoot apices of 6-day-old wild-type and minu1 minu2 seedlings (Figure 4c). WUS expression was greatly elevated (about eightfold higher than wild-type levels)

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

we conducted quantitative RT-PCR (qRT-PCR) using RNA extracted from dissected shoot apices of 6-day-old wild-type and minu1 minu2 seedlings ... STM mRNA expression was increased to about twofold of that in the wild type

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

we conducted quantitative RT-PCR (qRT-PCR) using RNA extracted from dissected shoot apices of 6-day-old wild-type and minu1 minu2 seedlings ... expression of a marker of organ initiation, AINTEGUMENTA (ANT; Long and Barton, 2000), was much reduced in minu1 minu2 (to one-fifth of wild-type levels), consistent with the strong delay in initiation of the first true leaves in the double mutant (Figures 3a and 4a

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

we examined pWUS:GUS ... accumulation in 4- and 5-day-old minu1 minu2 shoot apices. We found no detectable pWUS:GUS ... signal at day 4, with weak pWUS:GUS ... expression visible at day 5

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

We observed reduced expression for pARR5:GUS ... in the SAM and in the RAM of minu1 minu2, relative to the wild type, at day 6

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

MINU2 ... expressed in all rapidly dividing cells, including those in the embryo, and in the RAM and SAM

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

MINU1 ... expressed in all rapidly dividing cells, including those in the embryo, and in the RAM and SAM

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

In 6-day-old minu1 minu2 SAMs, pWUS:GUS was expressed in an expanded domain compared with the wild type (Figure 4d). The extent of the ectopic WUS expression varied between individual minu1 minu2 plants

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

we conducted quantitative RT-PCR (qRT-PCR) using RNA extracted from dissected shoot apices of 6-day-old wild-type and minu1 minu2 seedlings ... CLV1 transcript levels were reduced to ... half of wild-type levels

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

In agreement with the pWUS:GUS reporter expression, in situ RNA hybridization using a WUS probe showed multiple ectopic foci of WUS expression on independent sections of a single 10-day-old minu1 minu2 meristem, including one in the axil of the cotyledon (Figure 4f). WUS expression was generally absent from its normal domain of expression. We propose that the individual foci observed by in situ hybridization together form the broad domain of expression observed by whole-mount analysis with pWUS:GUS

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

we conducted quantitative RT-PCR (qRT-PCR) using RNA extracted from dissected shoot apices of 6-day-old wild-type and minu1 minu2 seedlings ... CLV3 ... transcript levels were reduced to one-third ... of wild-type levels

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

Consistent with the public RNA expression data, GFP-tagged MINU2 protein was expressed in embryos, in the RAM and in the SAM

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

We observed reduced expression for ... pARR7:GUS in the SAM and in the RAM of minu1 minu2, relative to the wild type, at day 6

Sang Y, Silva-Ortega CO, Wu S, Yamaguchi N, Wu MF, Pfluger J, Gillmor CS, Gallagher KL, Wagner D - Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

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  • Gene expression

expression levels in voz1voz2-2 ... of CBF3 was slightly suppressed at 4°C

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

During the cold treatment, the expression of the cold-responsive ... RD29B also increased considerably, even though CBF/DREB1s (CBF1-CBF3) gene expression was reduced in voz1voz2-2

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

During the cold treatment, the expression of the cold-responsive ... COR15A ... also increased considerably, even though CBF/DREB1s (CBF1-CBF3) gene expression was reduced in voz1voz2-2

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... the mitogen-activated protein (MAP) kinase family protein At4 g12020 ... significantly down-regulated

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

During the cold treatment, the expression of the cold-responsive ... RD29A ... also increased considerably, even though CBF/DREB1s (CBF1-CBF3) gene expression was reduced in voz1voz2-2

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

CBF2 expression levels in voz1voz2-2 were severely suppressed ... at 4°C

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... up-regulated in both voz1voz2-1 and voz1voz2-2 ... APX2

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

Changes in ... VOZ2 expression levels at a chilling temperature were examined using qRT-PCR. WT Arabidopsis seedlings were grown at 22°C and were then transferred to an environment that was maintained at 4°C, and VOZs expression was measured at different time points. The expression of these genes decreased after 3 h at 4°C, and the transcription of both genes almost disappeared after 24 h of cold treatment (Figure 2a

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... disease-related ... At5 g40919 ... significantly down-regulated

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... disease-related ... At4 g16950 ... significantly down-regulated

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... receptor-like kinase ... At1 g63590 ... significantly down-regulated

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... up-regulated in both voz1voz2-1 and voz1voz2-2 ... HSP21

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

The expression levels ... of ... CBF3/DREB1a ... increased within 3 h in WT plants ... at 4°C

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

Consistent with the VOZ2 transcription level, the VOZ2 protein was gradually degraded at 4°C and had almost disappeared after 24 h at 4°C, however treatment with a 26S proteasome inhibitor, MG132, before the cold treatment strongly inhibited VOZ2 degradation (Figure 2b). The ubiquitinated green fluorescent protein (GFP)-fused VOZ2 was observed not only under cold conditions and but also under normal growth conditions, although GFP–VOZ2 was further ubiquitinated under cold-stress conditions in the presence of MG132 (Figure S5), a finding that suggested that VOZ2 is constantly ubiquitinated and degraded not only under cold conditions but also under normal growth conditions

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

the expression patterns of ... an abscisic acid-mediated abiotic (ABA)-mediated transcription factor CBF4/DREB1d ... up-regulated in voz1voz2-2 ... consistent ‘strong’ CBF4/DREB1d expression was observed not only at 4°C but also under normal growth conditions in voz1voz2-2

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... receptor-like kinase ... At2 g25440 ... significantly down-regulated

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... up-regulated in both voz1voz2-1 and voz1voz2-2 ... RAS1

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

Changes in VOZ1 ... expression levels at a chilling temperature were examined using qRT-PCR. WT Arabidopsis seedlings were grown at 22°C and were then transferred to an environment that was maintained at 4°C, and VOZs expression was measured at different time points. The expression of these genes decreased after 3 h at 4°C, and the transcription of both genes almost disappeared after 24 h of cold treatment

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

we choose several genes that were significantly up-regulated or down-regulated in voz1voz2-2 in the microarray experiment, and compared the results of the expression level changes in these genes in WT, voz1voz2-1, voz1voz2-2 plants, and in a genomic complementation line that expressed VOZ1 (gVOZ1 #3) using quantitative RT-PCR (qRT-PCR ... disease-related ... At5 g22690 ... significantly down-regulated

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

CBF1 ... expression levels in voz1voz2-2 were severely suppressed ... at 4°C

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

the expression patterns of a CBF/DREB1-independent cold-regulatory gene, ZAT12 ... up-regulated in voz1voz2-2. ‘Strong’ ZAT12 expression was rapidly induced within 30 min at 4°C and retained for over 24 h

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

The expression levels ... of ... CBF1/DREB1b ... increased within 3 h in WT plants ... at 4°C

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

The expression levels ... of ... CBF2/DREB1c ... increased within 3 h in WT plants ... at 4°C

Nakai Y, Nakahira Y, Sumida H, Takebayashi K, Nagasawa Y, Yamasaki K, Akiyama M, Ohme-Takagi M, Fujiwara S, Shiina T, Mitsuda N, Fukusaki E, Kubo Y, Sato MH - Vascular plant one-zinc-finger protein 1/2 transcription factors regulate abiotic and biotic stress responses in Arabidopsis

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  • Gene expression

We performed protein gel-blot analyses with specific antibodies ... Levels of ... mLPD ... were not influenced by loss of the BOU protein

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

HIS2A ... strongly repressed in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

Expression of the GDCH1 ... encoding glycine decarboxylase subunit ... is down-regulated in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

Carbon assimilation genes such as ... Rubisco activase (RCA) ... down-regulated in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

BOU gene expression is light-inducible and dependent on photon flux density (Figure 1b–d and Figure S1a,b) (Lawand et al., 2002) and plastid signals

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

We performed protein gel-blot analyses with specific antibodies ... Levels of ... SHM1 were not influenced by loss of the BOU protein

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

We performed protein gel-blot analyses with specific antibodies ... Levels of ... GDT ... were not influenced by loss of the BOU protein

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

BOU promoter activity was observed in cotyledons

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

in bou-2 ... chlorophyllase ATCHL2 (At5 g43860), the first enzyme in chlorophyll degradation (Tsuchiya et al., 1999), was up-regulated

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

Carbon assimilation genes such as ... Rubisco small subunit ... RBSC3B ... down-regulated in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

Carbon assimilation genes such as ... Rubisco small subunit ... RBCS1A ... down-regulated in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

We crossed the CycB1;1::uidA reporter gene, which is specifically expressed in the G2 and mitosis (M) phases of the cell cycle, into the WT and bou-2 backgrounds (Colón-Carmona et al., 1999). WT shoot apices were GUS-stained, revealing that numerous cells are in the G2 and M phases and thus dividing. bou-2 seedlings showed little or no GUS staining in the apical region, so cells were either at other phases of the cell cycle or had exited the cell cycle (Figure 6b). When supplemented with sucrose for 24 h, mutant seedlings displayed GUS staining in shoot apices ... The effect of 1% CO2 on cell division was also investigated. Scattered dense staining of both leaf primordia and root meristems of CycB1;1::uidA/bou-2 plants showed that cell division resumed 1 day after bou-2 was transferred to 1% CO2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

in bou-2 ... an alanine glyoxylate:aminotransferase (AGT3) involved in conversion of alanine and glyoxylate to glycine ... up-regulated

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

We performed protein gel-blot analyses with specific antibodies ... by loss of the BOU protein ... distinct changes were found for GDP. In protein extracts from bou-2 grown at 1% CO2, the amount of GDP was somewhat elevated compared to WT. In bou-2 plants shifted to ambient air, we detected decreased amounts of GDP ... Intriguingly, an additional signal was detected using the GDP-specific antibody. This signal probably originated from a degradation product of GDP. This GDP fragment also occurred in WT (Figure S4), but accumulated to a much greater extent in bou-2 after the shift to ambient air

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

Lipoylation of GDH and the E2 subunits of pyruvate dehydrogenase was not affected in bou-2, but the amount of lipoylated E2 subunit of a-ketoacid dehydrogenase was increased in protein extracts from bou-2 plants after the shift to ambient air

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

BOU promoter activity was observed in ... leaf tissues

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

BOU gene is strongly co-expressed with the genes GDP2 (At2 g26080), GDP1 (At4 g33010), GDT1 (At1 g11860) and GDH3 (At1 g32470), encoding subunits of GDC, and SHM1 (At4 g37930), encoding the mitochondrial serine hydroxymethyl transferase SHM1

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

in bou-2 ... pyruvate and a threonine aldolase (THA1) involved in the synthesis of glycine from threonine ... up-regulated

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

BOU promoter activity ... appeared to be absent from meristematic tissues

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

HIS4 ... strongly repressed in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

a linker histone gene, HIS1-3, was expressed at a higher level in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

Expression of an STM promoter–GUS reporter gene was always detected in the bou-2 mutant (Figure S6), suggesting that meristem cell identity is somehow maintained despite the strong meristem disorganization and low cell-cycle activity

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

We performed protein gel-blot analyses with specific antibodies ... Levels of GDH ... were not influenced by loss of the BOU protein

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

Expression of the ... GDCT ... encoding glycine decarboxylase subunit ... is down-regulated in bou-2

Eisenhut M, Planchais S, Cabassa C, Guivarc'h A, Justin AM, Taconnat L, Renou JP, Linka M, Gagneul D, Timm S, Bauwe H, Carol P, Weber AP - Arabidopsis A BOUT DE SOUFFLE is a putative mitochondrial transporter involved in photorespiratory metabolism and is required for meristem growth at ambient CO2 levels

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  • Gene expression

in rh3–4 ... Expression of ABA1, the first enzyme of the pathway ... was suppressed

Lee KH, Park J, Williams DS, Xiong Y, Hwang I, Kang BH - Defective chloroplast development inhibits maintenance of normal levels of abscisic acid in a mutant of the Arabidopsis RH3 DEAD-box protein during early post-germination growth

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  • Gene expression

transcriptional fusion construct with the RH3 promoter (2.0 kb) and the ß–glucuronidase (GUS) reporter gene ... GUS expression was detected in the apical zone of the first pair of true leaves

Lee KH, Park J, Williams DS, Xiong Y, Hwang I, Kang BH - Defective chloroplast development inhibits maintenance of normal levels of abscisic acid in a mutant of the Arabidopsis RH3 DEAD-box protein during early post-germination growth

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  • Gene expression

in rh3–4 ... Expression of ... NCED4 (9–cis–epoxycarotenoid dehydrogenase 4), a member of the dehydrogenase family that cleaves 9–cis–carotenoids to xanthoxin ... was suppressed

Lee KH, Park J, Williams DS, Xiong Y, Hwang I, Kang BH - Defective chloroplast development inhibits maintenance of normal levels of abscisic acid in a mutant of the Arabidopsis RH3 DEAD-box protein during early post-germination growth

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  • Gene expression

To examine the tissue-specific expression patterns of RH3, we generated transgenic plants expressing a transcriptional fusion construct with the RH3 promoter (2.0 kb) and the ß–glucuronidase (GUS) reporter gene. T2 progeny from three independent transgenic RH3p-GUS lines were used for GUS activity analysis (Figure 1b–f). GUS staining was strongest in the cotyledons and hypocotyls of germinating seedlings (Figure 1b). The GUS activity became weak in the cotyledons and hypocotyls in 1-week-old seedlings, and decreased further in true leaves in older seedlings

Lee KH, Park J, Williams DS, Xiong Y, Hwang I, Kang BH - Defective chloroplast development inhibits maintenance of normal levels of abscisic acid in a mutant of the Arabidopsis RH3 DEAD-box protein during early post-germination growth

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  • Gene expression

To further examine chloroplast ribosome biogenesis in the rh3–4 mutant, we performed RNA blot analysis using probes that recognize chloroplast rRNA molecules (Figure 6a). Consistent with the electron tomography imaging results (Figure 5), which showed a decrease in chloroplast ribosome density, the amounts of chloroplast rRNA were significantly reduced. We did not detect unusual forms of chloroplast rRNA in total RNA samples from the 3-day-old rh3–4 mutant when equal amounts of samples were analyzed

Lee KH, Park J, Williams DS, Xiong Y, Hwang I, Kang BH - Defective chloroplast development inhibits maintenance of normal levels of abscisic acid in a mutant of the Arabidopsis RH3 DEAD-box protein during early post-germination growth

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  • Gene expression

To determine the subcellular localization of RH3, we performed immunoelectron microscopy with transgenic Arabidopsis plants expressing an RH3::FLAG fusion protein under the control of its native promoter. FLAG-specific immunogold particles were observed mostly in the chloroplast stroma of the transgenic cotyledon cells

Lee KH, Park J, Williams DS, Xiong Y, Hwang I, Kang BH - Defective chloroplast development inhibits maintenance of normal levels of abscisic acid in a mutant of the Arabidopsis RH3 DEAD-box protein during early post-germination growth

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  • Gene expression

aerial parts of wild-type and cpk28-1 plants were harvested at various developmental stages (10, 20, 27, 31 and 35 dag) and transcriptional changes of NST genes were monitored by qRT-PCR. Gene expression of ... NST3 ... enhanced in cpk28-1 mutant plants compared with the wild type ... Whereas transcription of NST1 was detectable in all five plant stages analysed, transcription of NST3 could not be detected at every age. In comparison with wild-type plants, where NST3 was only transcribed from 27 dag onwards, transcripts in cpk28-1 could be detected earlier (20 dag

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

CPK28 (pCPK28::GUS) ... promoter activity appeared to be associated with the ... the rosette of older plants

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

aerial parts of wild-type and cpk28-1 plants were harvested at various developmental stages (10, 20, 27, 31 and 35 dag) and transcriptional changes of NST genes were monitored by qRT-PCR. Gene expression of NST1 ... enhanced in cpk28-1 mutant plants compared with the wild type

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

To investigate tissue- and cell type-specific expression of CPK28 during development of A. thaliana, transgenic lines expressing the uidA (ß-glucuronidase – GUS) gene under the control of a 1.8 kb upstream promoter sequence from CPK28 (pCPK28::GUS) were generated. GUS activity was detected throughout various plant stages in different tissues, mainly in the vasculature and in meristematic regions (Figure 4). GUS activity was evident in the vasculature of seedlings, of older plants and of mature rosette leaves

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

at the transition to generative phase-dependent shoot elongation in the wild-type, gene expression of GA3ox1 dropped in cpk28 mutant plants (31 and 35 dag). The same transcriptional down-regulation of GA3ox1 was confirmed for the second allele cpk28-2 at 31 dag

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

in cpk28 mutant lines ... GA treatment, sufficient to trigger a partial reversal of the cpk28 mutant stem elongation phenotype, resulted in even higher NST1 ... transcript quantities

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

Reduced expression of GA marker gene GA3ox1 was observed in cpk28 plants (Figure 6), and exogenous GA resulted in an even greater reduction of transcript amount

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

aerial parts of wild-type and cpk28-1 plants were harvested at various developmental stages (10, 20, 27, 31 and 35 dag) and transcriptional changes of NST genes were monitored by qRT-PCR ... the expression of transcription factor NST2, for which no function in stem secondary growth has been reported (Zhong et al., 2008), remained unaltered

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

in cpk28 mutant lines ... GA treatment, sufficient to trigger a partial reversal of the cpk28 mutant stem elongation phenotype, resulted in even higher ... NST3 transcript quantities

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

2010). Gene expression was analysed at various developmental stages (10, 20, 27, 31 and 35 dag) of wild-type and cpk28-1 by qRT-PCR (Figure 6e,f). No differences in ... GA3ox1 transcript levels were detected during vegetative growth (up to 27 dag

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

2010). Gene expression was analysed at various developmental stages (10, 20, 27, 31 and 35 dag) of wild-type and cpk28-1 by qRT-PCR (Figure 6e,f). No differences in GA20ox1 ... transcript levels were detected during vegetative growth (up to 27 dag)

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

CPK28 (pCPK28::GUS) ... promoter activity appeared to be associated with the meristematic zone of seedlings

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

CPK28 (pCPK28::GUS) ... In sections of the petiole of a fully expanded rosette leaf, GUS activity was seen in the vasculature

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

quantitative reverse transcription polymerase chain reaction ... indicated that a member of the NAC transcription factor family, NST1 (NAC SECONDARY WALL THICKENING PROMOTING FACTOR1), showed higher expression levels in cpk28 mutant plants

Matschi S, Werner S, Schulze WX, Legen J, Hilger HH, Romeis T - Function of calcium-dependent protein kinase CPK28 of Arabidopsis thaliana in plant stem elongation and vascular development

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  • Gene expression

We next investigated whether the expression level of proteasome genes is translated into a change in proteasome activity. After 8 h of RPX induction, the protein level of PBE1 ... was increased as determined by Western blotting

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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We found that RPX expression is mainly restricted to the vascular tissue throughout the plant (Figure S3), in line with previous reports (Morishita et al., 2009). Transformation of tobacco with an Arabidopsis RPX promoter::GUS construct resulted in a similar expression pattern in leaves as observed for Arabidopsis (Figure S3g), indicating conserved upstream regulation of RPX

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

Both full-length and truncated RPX fused to GFP showed prominent nuclear localization

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

RPX expression is induced during transition from the expansion phase to the maturation phase

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

we performed microarray experiments using a ß–estradiol-inducible RPXΔC construct ... RPX induced the expression of six other TFs, including three uncharacterized NAC TFs ... ANAC094

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

We next investigated whether the expression level of proteasome genes is translated into a change in proteasome activity. After 8 h of RPX induction, the protein level of ... PBA1 ... was increased as determined by Western blotting

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

Arabidopsis contains 55 genes encoding subunits of the 26S proteasome and several putative UMP1-like maturation factors (Table S2). Expression of these genes was examined after 60, 90 and 120 min of induction of RPX, as well as in the over-expression and knockout lines, by quantitative real-time PCR (Figure 4 and Table S3). We found that 42 of the 55 genes tested were more than twofold induced after 120 min of ß–estradiol induction. In full-length over-expression plants, 24 genes were more highly expressed than in controls, while 46 genes were up-regulated in oxΔC plants, although the level of transgene expression for full-length and truncated RPX was comparable

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

RPX is induced within 60 min of UV–B exposure and returns to basal levels after 12 h

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

We next investigated whether the expression level of proteasome genes is translated into a change in proteasome activity. After 8 h of RPX induction, the protein level of ... RPN10 was increased as determined by Western blotting

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

we performed microarray experiments using a ß–estradiol-inducible RPXΔC construct ... RPX induced the expression of six other TFs, including three uncharacterized NAC TFs ... ANAC103

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

Both full-length and truncated RPX fused to GFP showed ... weak cytoplasmic localization was also observed in some cases

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

we performed microarray experiments using a ß–estradiol-inducible RPXΔC construct ... RPX induced the expression of six other TFs, including three uncharacterized NAC TFs ... ANAC087

Nguyen HM, Schippers JH, Gõni-Ramos O, Christoph MP, Dortay H, van der Hoorn RA, Mueller-Roeber B - An upstream regulator of the 26S proteasome modulates organ size in Arabidopsis thaliana

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  • Gene expression

The accumulation levels of ... miR162 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The unspliced pri-miR160a (~2.0 kb) accumulated more in se-1 and sta1-1 compared with Col-0 and hyl1-2 (Figure 5A). The se-1 and hyl1-2 mutants displayed a band ~850 bp which corresponds to the predicted size of mature pri-miR160a, while both Col-0 and sta1-1 did not show this band

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR398 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR168 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR160 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

We also quantitatively evaluate the retention of introns in pri-miR172b by comparing the levels of the introns in the WT control and sta1-1 using qRT-PCR. The retention levels of intron 1 and 2 in pri-miR172b were higher in se-1 ... than Col-0

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

unspliced pri-miR166b was accumulated more in se-1 ... than in Col-0

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

unspliced pri-miRNA172a was accumulated more in sta1-1 than in Col-0

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR393 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

Intriguingly, the intron-less pri-miR160b transcripts were accumulated slightly more in sta1-1 than in Col-0, which was similar to those in se-1 and hyl1-2

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

To investigate the involvement of STA1 in the pri-miRNA processing, we determined pri-miRNA transcript levels by qRT-PCR (Figure 4). Transcripts of all tested pri-miRNAs accumulated more in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

High levels of unspliced pri-miRNA166a transcripts accumulated in se-1, hyl1-2 and sta1-1 as compared with Col-0, indicating the similar impairment in pri-miR166a splicing process in these mutants

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The unspliced pri-miR160a (~2.0 kb) accumulated more in se-1 and sta1-1 compared with Col-0 and hyl1-2 (Figure 5A). The se-1 and hyl1-2 mutants displayed a band ~850 bp which corresponds to the predicted size of mature pri-miR160a, while both Col-0 and sta1-1 did not show this band

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

Compared with WT, the accumulation of CUC1 ... transcripts was higher in sta1-1, which is linked to decreased miR164/166 levels and explains the serrated leaf phenotype of sta1-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

Higher accumulation of unspliced pri-miR172b was also observed in sta1-1 compared with Col-0, se-1 and hyl1-2. In addition to the intron retention in sta1-1, we observed unusual accumulation of the predicted mature pri-miR172b (~0.7 kb), which was present in Col-0, se-1 and hyl1-2 at very similar levels (Figure 5E). Normally, mature pri-miRNAs rapidly undergo further processing to pre-miRNAs that are known to be less detectable in WT than the processing defective mutants (59). To clarify the identity of the ~0.7-kb fragment in Col-0, we cloned the fragment for sequence analysis and found that the fragment is a mis-spliced product caused by an exon-skipping at 5'-region during splicing

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The phenotypic resemblances among sta1-1, se-1, hyl1-2 and abh1/cbp80 led us to investigate the levels of miRNAs in sta1-1. Using the Illumina platform, we generated 20.4 and 28.0 million clean reads that perfectly matched the Arabidopsis genome from the small RNA populations in sta1-1 and WT, respectively. We compared the normalized counts of mature miRNAs in sta1-1 and WT and found that the majority of miRNAs had lower expression in sta1-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

APETALA 2 (AP2), a target of miR172 (56), showed a slight increase in se-1, hyl1-2 and sta1-1 that accumulated lower amounts of miR172 than WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR173 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

High levels of unspliced pri-miRNA166a transcripts accumulated in se-1, hyl1-2 and sta1-1 as compared with Col-0, indicating the similar impairment in pri-miR166a splicing process in these mutants

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

an increase of the SPL3 transcript level was observed in sta1-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

several bands ranging from ~0.85 to ~1.4 kb accumulated to high levels in se-1 and hyl1-2, but not in Col-0 and sta1-1 (Figure 5E). Interestingly, the splicing intermediates of pri-miR172b were more variable in hyl1-2 than in se-1. Indeed, the sequence analysis of these fragments showed various intermediates in hyl1-2 and only one kind of intermediate in se-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR171 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

several bands ranging from ~0.85 to ~1.4 kb accumulated to high levels in se-1 and hyl1-2, but not in Col-0 and sta1-1 (Figure 5E). Interestingly, the splicing intermediates of pri-miR172b were more variable in hyl1-2 than in se-1. Indeed, the sequence analysis of these fragments showed various intermediates in hyl1-2 and only one kind of intermediate in se-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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We also quantitatively evaluate the retention of introns in pri-miR172b by comparing the levels of the introns in the WT control and sta1-1 using qRT-PCR. The retention levels of intron 1 and 2 in pri-miR172b were higher in se-1, hyl1-2 and sta1-1 than Col-0, while the retention of intron 3 was high only in sta1-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

Compared with WT, the accumulation of ... REV transcripts was higher in sta1-1, which is linked to decreased miR164/166 levels and explains the serrated leaf phenotype of sta1-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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High levels of unspliced pri-miRNA166a transcripts accumulated in se-1, hyl1-2 and sta1-1 as compared with Col-0, indicating the similar impairment in pri-miR166a splicing process in these mutants

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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The accumulation levels of miR156 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

In contrast to a previous report (57), we could not observe the spliced fragments of pri-miR166 in hyl1-2. We suspect that the splicing efficiency of intron containing pri-miRNAs may be more dependent on growth conditions or developmental stages in hyl1-2 than other mutants

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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The accumulation levels of ... miR447 were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR158 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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the expression of miR164 was ... in the sta1-1 ... slightly decreased in the small RNA blot hybridization

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

transcript level of DCL1 is reduced in sta1-1

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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unspliced pri-miR166b was accumulated more in ... hyl1-2

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

Higher levels of ARF17 transcripts accumulated in sta1-1, consistent with its reduced miR160 levels compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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sta1-1 with decreased miR159 levels showed marginally increased expression levels of MYB33

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

We also quantitatively evaluate the retention of introns in pri-miR172b by comparing the levels of the introns in the WT control and sta1-1 using qRT-PCR. The retention levels of intron 1 and 2 in pri-miR172b were higher in ... hyl1-2 ... than Col-0

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR157 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR172 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

The accumulation levels of ... miR166 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

unspliced pri-miR166b was accumulated more in ... sta1-1 than in Col-0

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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The accumulation levels of ... miR159 ... were reduced in sta1-1 compared with WT

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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The unspliced pri-miR160a (~2.0 kb) accumulated more in se-1 and sta1-1 compared with Col-0 and hyl1-2 (Figure 5A). The se-1 and hyl1-2 mutants displayed a band ~850 bp which corresponds to the predicted size of mature pri-miR160a, while both Col-0 and sta1-1 did not show this band

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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The only difference between the small RNA blot hybridization and Illumina sequencing was the level of miR164; the expression of miR164 was slightly increased in the sta1-1 sequencing results

Ben Chaabane S, Liu R, Chinnusamy V, Kwon Y, Park JH, Kim SY, Zhu JK, Yang SW, Lee BH. - STA1, an Arabidopsis pre-mRNA processing factor 6 homolog, is a new player involved in miRNA biogenesis

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  • Gene expression

Based on qRT-PCR analysis, we found that expression of ... LAC13 ... are significantly repressed in the miR408-OX plants

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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supplementing MS with 5 µm copper (MS + Cu) effectively prevents the seedlings from accumulating miR408

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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T–DNA lines carrying insertions in the MIR408 locus ... FLAG_545E03 and ... FLAG_481E04 ... We found both mutants show increased ... LAC13 levels compared with the wild type

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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We designed an artificial microRNA, amiR408, driven by the 35S promoter to specifically target the pre-miR408 sequence ... As an indicator for reduced miR408 activity ... Plantacyanin transcripts were found at much increased levels in the amiR408 plants

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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  • Gene expression

Based on qRT-PCR analysis, we found that expression of ... Plantacyanin are significantly repressed in the miR408-OX plants

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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T–DNA lines carrying insertions in the MIR408 locus ... FLAG_545E03 and ... FLAG_481E04 ... We found both mutants show increased Plantacyanin ... levels compared with the wild type

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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  • Gene expression

Similar to mature miR408, qRT-PCR analysis showed that pre-miR408 is accumulated to a much higher level under low copper conditions

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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T–DNA lines carrying insertions in the MIR408 locus ... Considering that At2 g47020, which encodes a peptide chain release factor, overlaps with the miR408 locus, we examined whether this gene is impacted when miR408 is silenced. As shown in Figure S3, using the primer pair flanking the T–DNA insertion sites, we found that the transcript level of At2 g47020 is reduced in three of the T–DNA lines, but increased in the other three when compared with the wild type. Using the primer pair downstream of all insertion sites, we found that the At2 g47020 level is increased in all T–DNA lines except FLAG_545E03. Thus, the T–DNA lines disrupting miR408 does affect the At2 g47020 locus; however, three critical pieces of evidence support the conclusion that the growth defects when knocking down miR408 are independent of the At2 g47020 gene

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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we checked four individual amiR408 lines and found comparable expression levels of At2 g47020 with the wild type (Figure S4); thus, the amiR408 lines employed in this study are specific to miR408, and do not downregulate At2 g47020

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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  • Gene expression

we analyzed the pMIR408:GUS transgenic plants in the wild-type background. When grown with copper supplement, GUS staining was visible in cotyledon veins, hypocotyl and the upper part of the root

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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  • Gene expression

Northern blot (Figure 5a) and qRT-PCR (Figure 5b) analyses confirmed that miR408 is present in young seedlings grown in standard MS media (with a copper concentration of 0.1 µm

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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GUS activity indicates that the MIR408 promoter is active in ... cotyledon

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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qRT-PCR analysis revealed that SPL7 is expressed at comparable or higher levels in adult organs

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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we analyzed the pMIR408:GUS transgenic plants in the wild-type background ... strong GUS activity throughout the seedling was observed when the seedlings were grown on MS ... indicating that the MIR408 promoter is induced in low copper conditions. Together, our results demonstrate that transcriptional control is important for proper MIR408 expression in response to varying copper levels

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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we introduced the pMIR408:GUS reporter gene in the spl7 background to generate the pMIR408:GUS/spl7 plants. Compared with wild-type seedlings expressing pMIR408:GUS (pMIR408:GUS/WT), pMIR408:GUS/spl7 seedlings have much reduced GUS staining with and without copper supplementation (Figure 5d), indicating that the activation of the MIR408 promoter under different copper conditions requires SPL7

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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We generated a reporter construct in which the ß–glucuronidase (GUS) gene is fused with the native promoter region, approximately 800 base pairs upstream of the TSS (pMIR408:GUS). We then generated transgenic Arabidopsis plants expressing this reporter construct and the vector control (Figure S1). When the transgenic plants were assayed, GUS activity indicates that the MIR408 promoter is active in both the green tissues (cotyledon, rosette and cauline leaf, sepal and silique coat) and vascular tissues (hypocotyl, root, vein and stem)

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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  • Gene expression

Northern blotting (Figure 5a) and qRT-PCR analyses (Figure 5b,c) showed that maintaining proper transcript levels as well as the induction of both miR408 and pre-miR408 in response to low copper are blocked by the spl7 mutation

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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we first examined the tissue-specific expression profile of miR408 in Arabidopsis. By means of northern blotting and quantitative reverse transcription-coupled PCR (qRT-PCR), we found that mature miR408 is readily detectable in the seven organ types examined, including seedling, root, rosette and cauline leaves, stem, flower and silique

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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  • Gene expression

We designed an artificial microRNA, amiR408, driven by the 35S promoter to specifically target the pre-miR408 sequence ... As an indicator for reduced miR408 activity ... LAC13 ... transcripts were found at much increased levels in the amiR408 plants

Zhang H, Li L - SQUAMOSA promoter binding protein-like7 regulated microRNA408 is required for vegetative development in Arabidopsis

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The abundance of SPCH ... gene transcription was also observed in ... abi2-1

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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a transgenic line harboring the pMUTE::GFP was crossed into aba2-2 mutant (Figure 4d,e). A scattered pattern of green fluorescent protein (GFP) expression was observed, correlated spatially with meristemoids and newly formed GMCs (Figure 4d). GFP fluorescence was detected in the cotyledon of the pMUTE::GFP line on day 3, but its expression could be hardly seen at later time points (Figure 4e). In the aba2-2 pMUTE::GFP line, the GFP signal was detected in meristemoids and GMCs similarly to that in the pMUTE::GFP line, but the aba2-2 pMUTE::GFP line contained more cells with the GFP signal and this signal could be observed later than the parental pMUTE::GFP line (Figure 4e). Collectively, these observations indicate that increased MUTE expression in the aba2-2 mutant is due to an increase in the number of cells that express MUTE

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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Expression of ... MUTE in WT seedlings declined during this period, from day 3 to 9 ... the reduction of MUTE expression occurred gradually and its transcript was still detectable in WT on day 9 ... Transcripts of these genes were found to be more abundant in the aba2-2 mutant

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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  • Gene expression

increased expression of ICK1, which encodes a cyclin-dependent kinase inhibitor protein that functions as a negative regulator of cell division and promoter of endoreduplication (Wang et al., 1998) in cyp707a1a3 compared with WT

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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increased expression of CYCD3;1, a gene which encodes a cyclin D-type protein involved in the switch from cell proliferation to the final stages of mitotic cell cycle(Wang et al., 1998) in aba2-2

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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  • Gene expression

The abundance of ... MUTE gene transcription was also observed in ... abi1-1

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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  • Gene expression

The abundance of ... MUTE gene transcription was also observed in ... abi2-1

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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  • Gene expression

MUTE expression ... reduced in cyp707a1a3 compared with WT

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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  • Gene expression

The abundance of SPCH ... gene transcription was also observed in ... abi1-1

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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  • Gene expression

The expression of SPCH ... reduced in cyp707a1a3 compared with WT

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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Expression of ... SPCH ... in WT seedlings declined during this period, from day 3 to 9 (Figure 4c). The expression of SPCH declined steeply and was low on day 7 ... Transcripts of these genes were found to be more abundant in the aba2-2 mutant

Tanaka Y, Nose T, Jikumaru Y, Kamiya Y - ABA inhibits entry into stomatal-lineage development in Arabidopsis leaves

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YUC9 transcription was ... induced by oxylipins ... with a seven-fold increase in transcript levels after 120 min of OPDA treatment while MeJA and coronatine caused an even stronger induction (11- and 12-fold increase in transcript abundance 240-min post-treatment, respectively

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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YUC8 ... transcript levels were significantly more abundant after short-term MeJA treatments ... yuc9

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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YUC8 expression was highest in very young 3- and 7-day-old seedlings, thereafter declining. In adult 6–8-week-old plants, YUC8 transcript levels were highest in young sink leaves, lower in mature source leaves, roots and flower buds, and hardly detectable in stems

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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YUC9 gene expression was generally one order of magnitude lower than YUC8 expression (Figure 3b). It was also developmentally regulated in young seedlings but with a peak 7 days after germination. In adult plants, YUC9 was predominantly expressed in roots and at a much lower level in sink leaves, while being undetectable in floral tissue

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

YUC9 ... transcript levels were significantly more abundant after short-term MeJA treatments ... yuc8

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

To investigate whether oxylipin-dependent YUCCA expression is also governed by COI1, we treated the coi1 mutant with the various oxylipins and examined changes in ... YUC9 expression ... When compared with responses obtained 2 h after induction of wild-type plants, transcriptional responses to oxylipin treatment appeared almost entirely suppressed in the coi1 background

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

To investigate whether oxylipin-dependent YUCCA expression is also governed by COI1, we treated the coi1 mutant with the various oxylipins and examined changes in YUC8 ... expression ... When compared with responses obtained 2 h after induction of wild-type plants, transcriptional responses to oxylipin treatment appeared almost entirely suppressed in the coi1 background

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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In order to compare the subcellular localization of the encoded proteins, both genes were fused to the green fluorescent protein (GFP) reporter gene. The resulting constructs were then used to transiently transfect Arabidopsis pavement cells by ballistic gene transfer. Confocal laser scanning microscopy revealed an exclusive cytoplasmic localization of ... YUC9

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

We next generated ... pYUC9::GUS reporter lines ... GUS ... activity ... was ... confined to the very margin of sink leaves

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

In order to compare the subcellular localization of the encoded proteins, both genes were fused to the green fluorescent protein (GFP) reporter gene. The resulting constructs were then used to transiently transfect Arabidopsis pavement cells by ballistic gene transfer. Confocal laser scanning microscopy revealed an exclusive cytoplasmic localization of ... YUC8

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

we measured YUC8 ... transcript abundance by qRT-PCR ... following application of MeJA, OPDA or coronatine, a bacteriotoxin that mimics the bioactive jasmonate JA-Ile ... In wild-type seedlings, all treatments resulted in a statistically significant reduction of YUC8 transcript levels within 30 min, followed by a progressive recovery within the next 3 h

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

We next generated pYUC8::GUS ... GUS reporter activity was absent from leaves

Hentrich M, Böttcher C, Düchting P, Cheng Y, Zhao Y, Berkowitz O, Masle J, Medina J, Pollmann S - The jasmonic acid signaling pathway is linked to auxin homeostasis through the modulation of YUCCA8 and YUCCA9 gene expression

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  • Gene expression

Also present are transcripts of several vascular patterning genes, including ... AGO1 ... which contain auxin-response elements (AuxREs) in their promoter regions

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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The activity of the corresponding AtTZF9/AT5G58620 promoter is strong in the young and developing regions of the plant, with high activity in ... veins

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

PV/PC cells ... Also present are transcripts of several vascular patterning genes, including GNOM ... which contain auxin-response elements (AuxREs) in their promoter regions

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

The ability to detect highly localized and transient expression is an advantage of cell-specific transcriptome analyses. To validate the accuracy of cell-specific transcriptome data, we observed the expression patterns of GUS reporter constructs made from representative genes from the PV/PC cell transcriptomes (Table S1). We confirmed that expression began in the PV/PC stage and extended into differentiating veins for ... AT2G21200 (putative auxin-responsive protein)

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression of ARF7 ... in PV/PC cells

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Previously characterized genes that are represented exclusively in the PV/PC cell transcriptome included ... VEP1

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

MP ... prominent in the PV/PC transcriptome

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

ARF4 ... prominent in the PV/PC transcriptome

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression is detected only in the vascular cells from a mature and expanding leaf included APL

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

The activity of the corresponding AtTZF9/AT5G58620 promoter ... Some weak expression was also seen in the epidermal cells

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Previously characterized genes that are represented exclusively in the PV/PC cell transcriptome included ... CVP1

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Also present are transcripts of several vascular patterning genes, including ... SFC ... which contain auxin-response elements (AuxREs) in their promoter regions

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression ... beginning in PV/PC cells and continuing into the differentiating vascular cells included MP

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

To validate the accuracy of cell-specific transcriptome data, we observed the expression patterns of GUS reporter constructs made from representative genes from the PV/PC cell transcriptomes (Table S1). We confirmed that expression began in the PV/PC stage and extended into differentiating veins for ... AT1G76520 (annotated as an auxin efflux protein)

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

To confirm the expression of KEG in PV/PC cells by an alternative method, we generated a KEG promoter:GUS reporter fusion construct and evaluated its expression pattern in transformed wild-type (WT/Col) plants. The KEG promoter ... was gradually limited in activity to the PV/PC cells at stages P3 and P4, and to the veins of later leaf stages

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Also present are transcripts of several vascular patterning genes, including ... PIN1 ... which contain auxin-response elements (AuxREs) in their promoter regions

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression of ... ARF5 ... in PV/PC cells

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression is detected only in the vascular cells from a mature and expanding leaf included ... IRX1

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Previously characterized genes that are represented exclusively in the PV/PC cell transcriptome included ... BRL1

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

The ability to detect highly localized and transient expression is an advantage of cell-specific transcriptome analyses. To validate the accuracy of cell-specific transcriptome data, we observed the expression patterns of GUS reporter constructs made from representative genes from the PV/PC cell transcriptomes (Table S1). We confirmed that expression began in the PV/PC stage and extended into differentiating veins for ... AT1G32940 (ATSBT3.5; similar to subtilase family protein)

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

To validate the accuracy of cell-specific transcriptome data, we observed the expression patterns of GUS reporter constructs made from representative genes from the PV/PC cell transcriptomes (Table S1). We confirmed that expression began in the PV/PC stage and extended into differentiating veins for AT1G15340 (MBD10 methylCpG binding domain containing protein)

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression ... beginning in PV/PC cells and continuing into the differentiating vascular cells included ... PINHEAD/ZWILLE/AGO10

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Previously characterized genes that are represented exclusively in the PV/PC cell transcriptome included ... AGD1

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

To confirm the expression of KEG in PV/PC cells by an alternative method, we generated a KEG promoter:GUS reporter fusion construct and evaluated its expression pattern in transformed wild-type (WT/Col) plants. The KEG promoter was active throughout the emerging primordia (stages P1 and P2 ... leaf stages

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression ... beginning in PV/PC cells and continuing into the differentiating vascular cells included ... PINOID

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression is detected only in the vascular cells from a mature and expanding leaf included ... XYLOGEN

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

To validate the accuracy of cell-specific transcriptome data, we observed the expression patterns of GUS reporter constructs made from representative genes from the PV/PC cell transcriptomes (Table S1). We confirmed that expression began in the PV/PC stage and extended into differentiating veins for ... AT2G26290 (ARSK1; protein kinase)

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression of ... IAA1 ... PV/PC cells

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Previously characterized genes that are represented exclusively in the PV/PC cell transcriptome included ... AGD4

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression ... beginning in PV/PC cells and continuing into the differentiating vascular cells included ... PARL1

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression of ... IAA19 in PV/PC cells

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

expression ... beginning in PV/PC cells and continuing into the differentiating vascular cells included ... IRX5

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

We find that inositol polyphosphate 3-/6-/5- kinase (IPK2ß), which participates in the synthesis of IP6, is PV/PC-specific, in agreement with previous reports of its vascular expression (Zhang et al., 2007; Xia et al., 2003)

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

The activity of the corresponding AtTZF9/AT5G58620 promoter is strong in the young and developing regions of the plant, with high activity in trichomes

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

Previously characterized genes that are represented exclusively in the PV/PC cell transcriptome included ACL5

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

The expression of AT2G26290 (ARSK1) has previously been reported to be specific to the roots (Hwang and Goodman, 1995) (and eFP browser http://bbc.botany.utoronto.ca/efp/cgi-bin/efpWeb.cgi). Since transcriptome data revealed this gene to be expressed in both early-stage and mature vascular cells of leaves, we tested the activity pattern in leaves of a reporter construct that included a longer promoter than previously published (3.035 kb from the 5' upstream region of ARSK1 versus 2.3 kb from the downstream region). With the longer upstream region, we found the previously reported root expression pattern, plus dynamic expression in the leaf and emerging primordia in the cells along the path of developing veins

Gandotra N, Coughlan SJ, Nelson T - The Arabidopsis leaf provascular cell transcriptome is enriched in genes with roles in vein patterning

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  • Gene expression

RD20 ... under salinity stress ... reduced in wrky8 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

As the VQ motif of VQ9 is important for the WRKY8–VQ9 interaction, the VQ9ΔVQ motif construct was also fused to GFP and expressed in leaves of tobacco. Interestingly, the VQ9ΔVQ motif construct displayed fluorescence in both the nucleus and the cytoplasm, sharing the same distribution as the smaller GFP

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

VQ9 was strongly induced by NaCl treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29B ... under salinity stress ... enhanced in vq9 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

SOS1 ... expression levels were reduced in wrky8 mutants ... compared with those in wild-type plants, under salt treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

SOS2 ... expression levels were reduced in wrky8 mutants ... compared with those in wild-type plants, under salt treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

VQ9 ... was not induced by ... cold

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD20 ... not affected in ... vq9

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29A ... under salinity stress ... reduced in wrky8 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

WRKY8 expression was strongly upregulated by high-salinity treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD20 ... under salinity stress ... enhanced in vq9 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29A ... not affected in ... vq9

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

SOS3 ... expression levels were ... increased in vq9 mutants ... compared with those in wild-type plants, under salt treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

SOS1 ... expression levels were ... increased in vq9 mutants, compared with those in wild-type plants, under salt treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

ADH1 ... under salinity stress ... enhanced in vq9 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

we detected high levels of WRKY8 transcripts in roots and low levels in rosette leaves and siliques. WRKY8 transcripts were barely detected in cauline leaves, stems and flowers

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

First, we determined its subcellular localization by fusing the full-length VQ9 to green fluorescent protein (GFP) and transiently expressing the construct in leaves of tobacco. As shown in Figures 5(a) and S1b, the transiently expressed VQ9-GFP fusion protein was exclusively localized in the nucleus, as revealed by DAPI staining

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29B ... not affected in ... vq9

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29B ... not affected in wrky8

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

ADH1 ... not affected in wrky8

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

ADH1 ... not affected in ... vq9

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

VQ9 was ... moderately induced by dehydration

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29B ... under salinity stress ... reduced in wrky8 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29A ... under salinity stress ... enhanced in vq9 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

SOS3 ... expression levels were reduced in wrky8 mutants ... compared with those in wild-type plants, under salt treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD20 ... not affected in wrky8

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

SOS2 ... expression levels were ... increased in vq9 mutants ... compared with those in wild-type plants, under salt treatment

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

VQ9 ... was not induced by heat

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

ADH1 ... under salinity stress ... reduced in wrky8 mutants

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

RD29A ... not affected in wrky8

Hu Y, Chen L, Wang H, Zhang L, Wang F, Yu D - Arabidopsis transcription factor WRKY8 functions antagonistically with its interacting partner VQ9 to modulate salinity stress tolerance

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  • Gene expression

bsk6 ... retained significantly higher DWF4 expression compared to wild-type plants ... upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk3,4,6,8 ... caused significant de-repression of DWF4 expression upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk7 ... retained significantly higher DWF4 expression compared to wild-type plants ... upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

to BL treatment ... the pentuple mutant bsk1,3,4,6,7 displayed a DWF4 expression pattern similar to that of the wild-type

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

SAUR-AC1 expression was only marginally induced by BL treatment in the ... bsk7,8 double mutants

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

Upon treatment of bsk mutants with BL, the ... bsk4 ... single mutants displayed a significantly reduced induction of SAUR-AC1 expression compared to the wild-type

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk2 ... retained significantly higher DWF4 expression compared to wild-type plants ... upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk5 ... retained significantly higher DWF4 expression compared to wild-type plants ... upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

SAUR-AC1 expression was only marginally induced by BL treatment in the bsk3,4 ... double mutants

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

Upon treatment of bsk mutants with BL, the bsk1 ... single mutants displayed a significantly reduced induction of SAUR-AC1 expression compared to the wild-type. The SAUR-AC1 expression level was significantly higher in the bsk1 mutant than in the wild-type in the absence or presence of BL

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

SAUR-AC1 expression ... by BL treatment ... was not induced at all in the ... bsk3,4,6,7,8 pentuple mutant

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

As expected, BL treatment in wild-type Col-0 seedlings reduced the expression of DWF4 to almost 12% relative to untreated plants

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk3,4,6,7,8 ... caused significant de-repression of DWF4 expression upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

Upon treatment of bsk mutants with BL, the ... bsk5 single mutants displayed a significantly reduced induction of SAUR-AC1 expression compared to the wild-type

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk3,4,7,8 ... caused significant de-repression of DWF4 expression upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

DWF4 regulation by BL was similar to wild-type in the bsk7,8 double mutant

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk3,4,7 ... caused significant de-repression of DWF4 expression upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk3 ... retained significantly higher DWF4 expression compared to wild-type plants ... upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

SAUR-AC1 expression was induced approximately threefold in wild-type Col-0 Arabidopsis seedlings in response to BL

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

SAUR-AC1 expression ... by BL treatment ... was not induced at all in the bsk3,4,7,8 quadruple mutant

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

when a mutation in BSK8 was introduced into the bsk3,4 background, which showed impaired DWF4 regulation by BL, repression of DWF4 in the resulting bsk3,4,8 triple mutant was similar to wild-type

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk3,4 ... caused significant de-repression of DWF4 expression upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

bsk3,4,6,7 ... caused significant de-repression of DWF4 expression upon BL treatment

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

to BL treatment ... the bsk3,4,6 triple mutant displayed a DWF4 expression pattern similar to that of the wild-type

Sreeramulu S, Mostizky Y, Sunitha S, Shani E, Nahum H, Salomon D, Hayun LB, Gruetter C, Rauh D, Ori N, Sessa G - BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis

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  • Gene expression

we did not detect clear ectopic expression of a trichome marker in GL2pro::GUS seedlings nor trichome differentiation in internal tissues in HDG2-OX

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

We next examined the cell-type expression patterns of HDG2 in developing cotyledon and leaf epidermis. HDG2 transcriptional reporter (HDG2pro::nls-3xGFP) showed strong GFP signals in meristemoids and SLGCs

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

We next examined the expression of the L1-layer-specific gene FIDDLEHEAD (FDH) (Pruitt et al., 2000) using in situ hybridization (Fig. 3C-F). As expected, strong FDH signals are detected in the epidermis of both wild-type and HDG2-OX seedlings (Fig. 3C,E); however, it was inconclusive whether FDH is ectopically expressed in the internal tissues of HDG2-OX seedlings

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

In situ hybridization analysis of total HDG2 transcripts showed strong expression in small epidermal cells (Fig. 2A), confirming the meristemoid-enriched expression seen in scrm-D mute seedlings, as well as in HDG2 GFP reporters

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

To unravel whether HDG2 can activate earlier steps of stomatal differentiation, we next examined whether HDG2-OX triggers ectopic expression of earlier stomatal cell-lineage markers. As shown in Fig. 2J,K, a subpopulation of HDG2-OX mesophyll cells expresses TMMpro::GUS-GFP, which is normally expressed in early stomatal-lineage cells, such as meristemoids and SLGCs (Nadeau and Sack, 2002). The TMM-negative internal cells are round and have numerous chloroplasts (Fig. 2J,K), indicating that they probably retain mesophyll cell identity

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

We therefore used an endoreduplicating epidermal cell marker (At5g17710pro::nuc-3xVENUS) (Roeder et al., 2012) to address this issue (Fig. 3G-I). The marker was originally identified for sepal epidermal ‘giant’ cells, but it also exhibits expression in large pavement cells in cotyledons and rosette leaves (Fig. 3G; data not shown). The At5g17710pro::nuc-3xVENUS signal was detected in occasional subepidermal nuclei in HDG2-OX seedlings

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

the HDG2 translational reporter (HDG2pro::HDG2-GFP) accumulated in the nuclei of meristemoids and SLGCs

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

whether HDG2 overexpression confers ectopic epidermal fate. Indeed, the L1-layer marker AtML1pro::GUS was occasionally detected in the internal tissues

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

To exclude the possibility that high expression of HDG2 in the meristemoid-enriched population may simply be reflecting the protodermal character of the actively dividing scrm-D mute epidermis, we further surveyed the expression of ... PDF2 in stomatal cell-state mutants. Unlike HDG2 ... PDF2 showed moderately high expression in all genetic backgrounds ... The expression levels of ... PDF2 were only ... 1.4-fold higher in scrm-D mute compared with wild type, which are significantly less than the more than 18-fold increase in HDG2

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

We have previously performed a comparative transcriptomic analysis of seedlings specifically enriched in particular stomatal cell state: spch, in which epidermis is devoid of any stomatal-lineage cells (i.e. pavement cells only); scrm-D mute, which produces an epidermis solely composed of meristemoids and sister cells (known as stomatal lineage ground cells, SLGCs); and scrm-D, which produces a stomata-only epidermis ... we identified HDG2 ... as a meristemoid-enriched gene. HDG2 shows strikingly high expression in the meristemoid-enriched population (2069.7±200.8, mean±s.e.m.) with over 18-fold, 20-fold and 10-fold enrichment over wild type (114.6±4.76), spch (102.2±18.3) and scrm-D (200.5±9.02), respectively ... Quantitative RT-PCR analysis confirmed specific and high HDG2 expression in scrm-D mute, with over 31-fold, 62-fold and 18-fold expression compared with wild type, spch and scrm-D, respectively

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

To unravel whether HDG2 can activate earlier steps of stomatal differentiation, we next examined whether HDG2-OX triggers ectopic expression of earlier stomatal cell-lineage markers ... As shown in Fig. 2J,K, a subpopulation of HDG2-OX mesophyll cells ... We further detected the expression of SPCHpro::GUS, the earliest marker of stomatal cell lineages, in the mesophyll tissue

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

To exclude the possibility that high expression of HDG2 in the meristemoid-enriched population may simply be reflecting the protodermal character of the actively dividing scrm-D mute epidermis, we further surveyed the expression of AtML1 ... in stomatal cell-state mutants. Unlike HDG2, both AtML1 ... showed moderately high expression in all genetic backgrounds (Fig. 1D). The expression levels of AtML1 ... were only 1.5-fold ... higher in scrm-D mute compared with wild type, which are significantly less than the more than 18-fold increase in HDG2

Peterson KM, Shyu C, Burr CA, Horst RJ, Kanaoka MM, Omae M, Sato Y, Torii KU - Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis

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  • Gene expression

ICK2 ... repress cell division ... down-regulated by approximately one-third ... in fk–J3158

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

FEN-treated Col-0 were labeled by ... pCYCB1;1::CYCB1;1-GUS, which ... expressed in early stomatal lineage cells, including meristemoid mother cells, meristemoids and guard mother cells ... We found that ... GUS ... detected in some clustered small cells, but not in those that likely withdrew from stomatal lineage cell division and finally converted to small pavement cell clusters

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

expression of ... CYCD3 in fk–J3158 was significantly increased by approximately ... three times

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

In fk–J3158 and FEN-treated Col-0, pMUTE::GFP signals were observed in some small-cell clusters (Figure 9e,f), suggesting that the asymmetric expression pattern of MUTE in the stomatal lineage is lost in the fk mutants, and that the clustered small cells expressing MUTE will most likely undergo terminal differentiation and form clustered stomata

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

In fk–J3158 ... CYCA2;1 ... down-regulated

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

In fk–J3158 ... CYCA2;2 ... down-regulated

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

expression of the asymmetric cell division marker pBASL::GFP-BASL was strongly polarized in the clustered small cells of FEN-treated Col-0 (Figure 9m–o and Figure S8g–i). Time-lapse imaging revealed that, during the mitotic division of small-cell clusters, pBASL::GFP-BASL exhibited polarized localization in every cell membrane

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

ICK1 ... repress cell division ... down-regulated by approximately one-third ... in fk–J3158

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

FEN-treated Col-0 ... CYCA2;1 ... down-regulated

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

measurement of the division asymmetry using TUB6-labeled preprophase bands of microtubules, cytokinesis and phragmoplasts, in Col-0 and fk–J3158 leaves also showed similar results (n = 200 cells)

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

We quantified two daughter cell sizes from asymmetric division, and observed expression of the asymmetric cell division (ACD) marker (Dong et al., 2009). In Col-0 leaves, 70% of meristemoid mother cell and meristemoid divisions resulted in the smaller cells being <40% of the combined area of the two daughter cells. Similarly, in fk–J3158, 72% of meristemoid mother cell and meristemoid divisions that produced daughter cells undergoing incorrect cell division or cell fate (detected by time-lapse agarose impressions) exhibited the same size asymmetry as in Col-0 (n = 180 cell pairs) (Figure 8 and Figure S7).

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

expression of CYCB1 ... in fk–J3158 was significantly increased by approximately one-half ... times ... compared to wild-type

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

E2FC ... repress cell division ... down-regulated by approximately one-third ... in fk–J3158

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

fk–J3158 ... pCYCB1;1::CYCB1;1-GUS, which ... expressed in early stomatal lineage cells, including meristemoid mother cells, meristemoids and guard mother cells ... We found that ... GUS ... detected in some clustered small cells, but not in those that likely withdrew from stomatal lineage cell division and finally converted to small pavement cell clusters

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

FEN-treated Col-0 were labeled by pTMM::TMM-GFP ... which ... expressed in early stomatal lineage cells, including meristemoid mother cells, meristemoids and guard mother cells ... We found that GFP ... detected in some clustered small cells, but not in those that likely withdrew from stomatal lineage cell division and finally converted to small pavement cell clusters

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

SKP1 ... repress cell division ... down-regulated by approximately one-third ... in fk–J3158

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

FEN-treated Col-0 ... CYCA2;2 ... down-regulated

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

fk–J3158 ... labeled by pTMM::TMM-GFP ... which ... expressed in early stomatal lineage cells, including meristemoid mother cells, meristemoids and guard mother cells ... We found that GFP ... detected in some clustered small cells, but not in those that likely withdrew from stomatal lineage cell division and finally converted to small pavement cell clusters

Qian P, Han B, Forestier E, Hu Z, Gao N, Lu W, Schaller H, Li J, Hou S - Sterols are required for cell-fate commitment and maintenance of the stomatal lineage in Arabidopsis

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  • Gene expression

we examined expression of CYCD3;1 in STMoe plants ... pCYCD3;1:GUS ... was expressed in developing ectopic meristems

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We detected elevated levels of ARR6 ... in ... KNAT1oe ... leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We also found that ... KNAT2 ... down-regulated in inducible STM-RNAi lines following transient induction

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

ARR6 ... transcripts were not up-regulated in STMoe/CKX1oe plants

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

conversely found no increase in STM mRNA in ... KNAT1oe

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We confirmed elevated levels of ... KNAT2 expression in STMoe lines

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We detected elevated levels of ... WOL in ... KNAT1oe ... leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

we examined expression of CYCD3;1 ... the lobes at the leaf margin coincided with foci of GUS activity ... in KNAT1oe ... leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We confirmed WUS expression in ectopic meristems (in STMoe) using a pWUS:GUS reporter

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CKX1 overexpression reduces levels of CK and expression of ARR6 ... compared with WT

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We detected elevated levels of ... WOL in ... KNAT2oe leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We detected elevated levels of ... WOL in STMoe ... leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We detected elevated levels of ARR6 ... in STMoe ... leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

conversely found no increase in STM mRNA in ... KNAT2oe lines

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CYCD3;2 ... transcript levels were reduced in the CKX1oe plants

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We detected elevated levels of ARR6 ... in ... KNAT2oe leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CYCD3;3 ... transcript levels were reduced in the CKX1oe plants

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CK promotes expression of ... CYCD3;2

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

we examined expression of CYCD3;1 ... the lobes at the leaf margin coincided with foci of GUS activity ... in ... KNAT2oe leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CK promotes expression of ... CYCD3;3

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

In WT plants, expression of an Arabidopsis pCYCD3;1:GUS reporter is initially detected throughout the leaf primordium and then becomes confined to hydathodes at the leaf margin as leaves develop towards maturity, coinciding with leaf serrations

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We confirmed elevated levels of KNAT1/BP ... in STMoe lines

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We observed prolonged and extensive ectopic cell division at the leaf margin and throughout developing lobes of STMoe leaves using the pCYCB1;1:CYCB1;1MDB-GUS reporter

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We also found that KNAT1/BP ... down-regulated in inducible STM-RNAi lines following transient induction

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CKX1 overexpression reduces levels of CK and expression of ... WOL compared with WT

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CYCD3;1 ... transcript levels were reduced in the CKX1oe plants

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

in STMoe plants ... in developing ectopic meristems ... pCYCB1;1:CYCB1;1MDB-GUS activity was also detected

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

CK promotes expression of ... CYCD3;1

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

We also detected increased expression of the cyclin-dependent kinase CDKB1;1, which is involved in inhibiting endoreduplication (Boudolf et al., 2004), in STMoe leaves

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

we examined expression of CYCD3;1 in STMoe plants ... In the STMoe background, the lobes at the leaf margin coincided with foci of GUS activity

Scofield S, Dewitte W, Nieuwland J, Murray JA - The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity

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  • Gene expression

To investigate further the links between auxin response and distribution and HAT3 and ATHB4 function, hat3-3 athb4-1 was crossed with PIN1::PIN1:GFP (Benková et al., 2003). Remarkably, PIN1:GFP expression in mature mutant embryos (Fig. 2H,L,P) closely mirrors the vascular defects observed in hat3-3 athb4-1 seedlings (Fig. 2F,J,N; supplementary material Fig. S4A). No significant difference was observed in PIN1:GFP expression in hypocotyls and roots of embryos altered in cotyledon development relative to wt

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

Auxin has a key role in both initiation and development of cotyledons during embryogenesis (Chandler, 2008). To investigate whether HAT3 and ATHB4 interfere with auxin distribution and response, hat3-3 athb4-1 was crossed with DR5rev::GFP (Friml et al., 2003). Mature embryos with two cotyledons differing in their degree of expansion and those with fused/single cotyledon(s) were selected to determine DR5rev::GFP pattern. Among the former, consistent with the phenotypes observed in hat3-3 athb4-1 seedlings, the most frequently seen were those with one cotyledon moderately expanded and one more significantly impaired in expansion (Fig. 2E,F; supplementary material Fig. S4A; data not shown). No significant difference was observed in DR5rev::GFP maximum in the root tip in hat3-3 athb4-1 embryos relative to Col-0. By contrast, GFP signal was significantly reduced or almost undetectable in cotyledons of mutant embryos (Fig. 2C,G). Remarkably, DR5rev::GFP expression strictly correlated with the degree of cotyledon expansion (Fig. 2G; data not shown). A significant number of hat3-3 athb4-1 seedlings displayed fused/single cotyledon(s) (Fig. 2I,J,M,N; supplementary material Fig. S4A). hat3-3 athb4-1 embryos with fused/single expanded cotyledon(s) display either two very close DR5rev::GFP maxima (Fig. 2K) or a single DR5rev::GFP maximum (Fig. 2O).

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

ATHB2 mRNA levels were reduced in ... phv-11 phb-13

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

ATHB4::GUS expression in leaf primordia is restricted to the adaxial domain

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

In wt embryos, ATHB2:GUS is localized in provascular cells from the early globular stage throughout all developmental stages (Fig. 3K-M), as ATHB2 RNA. There are, however, some differences in ATHB2:GUS expression pattern compared with that of ATHB2. Weak expression of ATHB2:GUS was detected in the apical side of heart embryos, but no GUS signal was seen in SAM at late stages of embryo development (Fig. 3L,M). This might be due to the absence of one or more regulatory elements in the chimeric gene or might be the consequence of additional regulation at the translational and/or post-translational level

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

ATHB2 mRNA levels were reduced in rev-5

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

In situ hybridization revealed specific expression pattern of ATHB2 during embryogenesis (Fig. 3A-C; supplementary material Fig. S7). At the globular stage, ATHB2 is expressed in the procambial cells. The vascular expression is maintained throughout all developmental stages. By the late torpedo stage until maturation, ATHB2 is also expressed in RAM. A weak expression of ATHB2 is also detected in SAM of mature embryos

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

ATHB2 mRNA levels were ... increased after 4 hours of β-estradiol-induced ATHB8d expression

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

Interestingly, ATHB2:GUS expression was enhanced in the apical side of early heart hat3-3 athb4-1 embryos with respect to wild-type ones (Fig. 3L,N; P=0.0002). Furthermore, ATHB2:GUS was also detected in SAM of several hat3-3 athb4-1 mature embryos

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

hat3-3 athb4-1 ... no significant difference in the expression of ... CLAVATA3 (CLV3 ... By contrast, hat3-3 athb4-1 seedlings with fused/single cotyledon(s) could be split into two groups, one with active SAM and the other one with inactive SAM, characterized by the absence of any cell dome in the site of presumptive SAM (supplementary material Fig. S11). The former group expresses ... CLV3::GUS whereas the latter one does not

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

hat3-3 athb4-1 ... no significant difference in the expression of WUSCHEL (WUS ... By contrast, hat3-3 athb4-1 seedlings with fused/single cotyledon(s) could be split into two groups, one with active SAM and the other one with inactive SAM, characterized by the absence of any cell dome in the site of presumptive SAM (supplementary material Fig. S11). The former group expresses WUS::GUS ... whereas the latter one does not

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

To this end, we analyzed YAB3 expression in hat3-3 athb4-1 using the yab3-2 gene trap line, which faithfully reproduces YABBY3 (YAB3) expression in leaves (YAB3::GUS) (Kumaran et al., 2002). GUS activity was detected uniformly throughout first leaf primordia in a significant number of hat3-3 athb4-1 YAB3::GUS/+ descendants whereas it was restricted to the abaxial domain of the young lateral organs of YAB3::GUS plants (Fig. 6G,H; P=0.0001). The expressivity of the phenotype in the first leaves of hat3-3 athb4-1 plants is variable, and it seems likely that the observed uniform expression of YAB3::GUS is associated with radialized primordia. Consistent with this, YAB3::GUS was expressed both in the adaxial and abaxial regions of the third and fourth leaf primordia of almost all the hat3-3 athb4-1 YAB3::GUS/+ descendants with detectable β-glucuronidase activity (56/61) whereas it was restricted to the abaxial domain in YAB3::GUS plants (58/58

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

We then assessed whether ATHB2:GUS expression attenuates the leaf phenotype of hat3-3 athb4-1. Leaf development defects in hat3-3 athb4-1 ATHB2::ATHB2:GUS were significantly less severe than those of hat3-3 athb4-1 (Fig. 6I,J; supplementary material Fig. S13C). In ATHB2::ATHB2:GUS leaf primordia, GUS activity was detected exclusively in provascular cells. By contrast, a significant number of hat3-3 athb4-1 plants also express ATHB2:GUS in the adaxial domain of leaf primordia

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

mRNA levels of ATHB2 were reduced after 4 hours of β-estradiol-induced HAT3 expression

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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ATHB4 is mainly expressed in the apical domain of globular and transition stage embryos. By the heart stage, ATHB4 expression resembles that of HAT3

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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HAT3::GUS ... expression in leaf primordia is restricted to the adaxial domain

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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Higher ATHB2 mRNA levels have also been observed in DEX-treated 35S::FLAG-GR-REVd plants

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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At the early globular stage, HAT3 is expressed in the embryo proper and excluded from the hypophysis. By the heart stage, the expression domain of HAT3 is mostly restricted to the apical part of the embryo, marking the incipient cotyledons. At the torpedo stage, HAT3 is mainly expressed in the adaxial side of the cotyledons and in the SAM. In mature embryos, HAT3 marks the SAM and the provascular system

Turchi L, Carabelli M, Ruzza V, Possenti M, Sassi M, Peñalosa A, Sessa G, Salvi S, Forte V, Morelli G, Ruberti I - Arabidopsis HD-Zip II transcription factors control apical embryo development and meristem function

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  • Gene expression

SARD1 ... increased between 1 and 2 weeks after the start of cold treatment

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 camta2 camta3 ... ICS1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of ... CBF2 ... in ... camta1/2 ... double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta3 ... SARD1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 ... ICS1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 camta2 camta3 ... SARD1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta3 ... ICS1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of ... CBF2 ... in ... camta2/3 double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 ... CBP60g ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

camta1/3 double mutation ... had little effect on cold induction of CBF2

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of ... CBF3 ... in ... camta2/3 double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta2 ... SARD1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

the transcript levels for ... CAMTA2 did not change appreciably during exposure of plants to low temperature for 5 weeks

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 camta2 camta3 ... CBP60g ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of CBF1 ... in ... camta1/2 ... double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

the transcript levels for CAMTA1 ... did not change appreciably during exposure of plants to low temperature for 5 weeks

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

camta1/3 double mutation resulted in impaired cold induction of CBF1

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta2 camta3 ... ICS1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta2 ... CBP60g ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of ... CBF3 ... in ... camta1/3 double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of CBF1 ... in ... camta2/3 double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 camta3 ... ICS1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta2 camta3 ... SARD1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 camta3 ... SARD1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta2 camta3 ... CBP60g ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 ... SARD1 ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

CBP60g ... increased between 1 and 2 weeks after the start of cold treatment

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta1 camta3 ... CBP60g ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of ... CBF3 ... in ... camta1/2 ... double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

grown at warm temperature (22°C ... in ... camta3 ... CBP60g ... transcript levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

at warm temperature (22°C ... in ... camta2 ... ICS1 ... transcript levels ... levels ... were greater

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

reduced ... cold induction of ... CBF2 ... in ... camta1/3 double mutant plants

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

during exposure of plants to low temperature for 5 weeks ... transcript levels for CAMTA3 increased

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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ICS1 transcript levels increased dramatically between 1 and 2 weeks after the start of exposure of plants to low temperature

Kim Y, Park S, Gilmour SJ, Thomashow MF - Roles of CAMTA transcription factors and salicylic acid in configuring the low-temperature transcriptome and freezing tolerance of Arabidopsis

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  • Gene expression

We also monitored the expression pattern of the DR5::GFP reporter after incubation of seedlings with auxin or with auxin inhibitors, and obtained similar results in the main mutant background and in WT

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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Strong pMAIN::MAIN-GUS expression was also observed in the SAM

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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Analysis of pMAIN::MAIN-GFP lines revealed that the MAIN–GFP fusion protein accumulated in all cells of the embryo at all developmental stages

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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we fused GFP to the MAIN cDNA under the control of the CaMV 35S promoter (p35S::MAIN-GFP). This construct was used for particle bombardment of tobacco (Nicotiana tabacum) epidermis cells, and the results showed that the fusion protein localized exclusively to the nucleus

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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To investigate whether MAIN is involved in auxin signalling, we monitored the expression of primary auxin response genes such as INDOLE-3–ACETIC ACID INDUCIBLE1 (IAA1 ... in seedlings at 3 DAG that had been incubated for 2 h on medium containing 10 µm auxin. The main-2 mutants behaved like WT seedlings ... induced after auxin treatment

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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A construct in which GFP was fused to the 5' end of MAIN and particle-bombarded into epidermis cells of Arabidopsis, tobacco and onion (Allium cepa) confirmed the localization to the nucleus

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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the expression of MAIN was not changed in WT seedlings upon addition of auxin

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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the complete MAIN genomic region, including the promoter region that was used for the complementation construct, fused to the uidA (GUS) gene of Escherichia coli (pMAIN::MAIN-GUS) or GFP (pMAIN::MAIN-GFP ... In general, MAIN was most strongly expressed in all meristematic tissues, i.e. the SAM

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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In the aerial parts, pMAIN::MAIN-GUS staining was generally weaker ... was mainly detected in the vasculature of leaves at all developmental stages

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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  • Gene expression

To investigate whether MAIN is involved in auxin signalling, we monitored the expression of primary auxin response genes such as ... IAA19 in seedlings at 3 DAG that had been incubated for 2 h on medium containing 10 µm auxin. The main-2 mutants behaved like WT seedlings ... induced after auxin treatment

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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  • Gene expression

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Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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  • Gene expression

The main–1 mutant was identified in a genetic screen for altered GFP distribution in Arabidopsis root tips. T–DNA mutagenesis was performed using an Arabidopsis line (ecotype C24) that expressed GFP from the companion cell-specific Arabidopsis SUCROSE TRANSPORTER2 promoter (pSUC2::GFP), in which GFP moves into sieve elements, is translocated to sinks and is unloaded symplastically from the phloem ends ... were unable to unload GFP from the root vasculature

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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We analysed the unloading phenotype of main–2 by crossing main–2 plants (ecotype Columbia, Col–0) with wild-type (WT) plants (Col–0) that expressed GFP under the control of the SUC2 promoter (Figure 1c) (Schneidereit et al., 2008). In this background, main–2 showed an identical phenotype (Figure 1d) to main–1 (Figure 1b

Wenig U, Meyer S, Stadler R, Fischer S, Werner D, Lauter A, Melzer M, Hoth S, Weingartner M, Sauer N - Identification of MAIN, a factor involved in genome stability in the meristems of Arabidopsis thaliana

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  • Gene expression

AtKRP6 over-expression ... higher mRNA levels for ... AtCycD4.1

Guérinier T, Millan L, Crozet P, Oury C, Rey F, Valot B, Mathieu C, Vidal J, Hodges M, Thomas M, Glab N - Phosphorylation of p27(KIP1) homologs KRP6 and 7 by SNF1-related protein kinase-1 links plant energy homeostasis and cell proliferation

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To investigate the effect of AtKRP6 phosphorylation on its subcellular localization, chimeric AtKRP6–GFP proteins (containing AtKRP6WT, AtKRP6T152A or AtKRP6T152D) were transiently expressed in A. thaliana protoplasts. Both AtKRP6T152A and AtKRP6T152D showed nuclear localization like the WT form. Thus, it appears that, under our conditions, Thr152 phosphorylation alone does not lead to re-localization of AtKRP6–GFP to the cytoplasm

Guérinier T, Millan L, Crozet P, Oury C, Rey F, Valot B, Mathieu C, Vidal J, Hodges M, Thomas M, Glab N - Phosphorylation of p27(KIP1) homologs KRP6 and 7 by SNF1-related protein kinase-1 links plant energy homeostasis and cell proliferation

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  • Gene expression

AtKRP6 over-expression ... higher mRNA levels for ... AtCycD3.1

Guérinier T, Millan L, Crozet P, Oury C, Rey F, Valot B, Mathieu C, Vidal J, Hodges M, Thomas M, Glab N - Phosphorylation of p27(KIP1) homologs KRP6 and 7 by SNF1-related protein kinase-1 links plant energy homeostasis and cell proliferation

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  • Gene expression

ick6 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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ick1/2 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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ick6/7 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/5/6/7 ... RBR1 protein level increased in the ... quintuple mutants compared with the Wt controls ... Accordingly, we further analyzed the level of phosphorylated RBR1 in the quintuple mutant with an antibody that has been used in other studies against plant phospho-Rb proteins (Ábrahám et al., 2011; Polit et al., 2012). The results from independent experiments showed that phospho-RBR1 level also increased

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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ick2 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/5/6/7 quintuple mutant ... For the 30 cyclin genes analyzed, most showed little change, but five mitotic cyclin genes were upregulated with a log2 value of more than 0.25, whereas three D-type cyclin genes showed downregulation, with a log2 value of lower than -0.25

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick7 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/5/6/7 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/5/6/7 quintuple mutant ... There were slight increases in the levels of ICK3 ... transcripts

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/5/6/7 quintuple mutant ... Among the 12 CDK genes, all showed a trend of upregulation, with six of them having a log2 value (log2 of relative expression) more than 0.25 (Figure S7a). This trend is more obvious when the transcript levels of CDKs are viewed as a group. However, the extent of upregulation for each CDK was limited, with the CDKA;1 transcript level in the quintuple mutant being 1.15-fold that in the Wt (Figure S7a). In this regard, the results from western analysis indicate that there was no difference between Wt and quintuple mutant plants in the level of CDAK protein (Figure S3). This slight difference is understandable, as an increase in transcripts does not automatically translate into an exact increase in the protein level

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick5 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/5/6/7 quintuple mutant ... There were slight increases in the levels of ... ICK4 transcripts

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/6/7 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

in the ICK1OE line ... only one gene (At4g20270) was upregulated

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1 ... we analyzed the CDKA;1 protein level in these mutants and controls by western blotting using an antibody against the conserved PSTAIRE domain of Cdc2 kinase. As shown in Figure S3, the CDKA;1 protein level was relatively constant among the mutants and controls

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

ick1/2/6/7 ... RBR1 protein level increased in the quadruple ... compared with the Wt controls ... Accordingly, we further analyzed the level of phosphorylated RBR1 in the quintuple mutant with an antibody that has been used in other studies against plant phospho-Rb proteins (Ábrahám et al., 2011; Polit et al., 2012). The results from independent experiments showed that phospho-RBR1 level also increased

Cheng Y, Cao L, Wang S, Li Y, Shi X, Liu H, Li L, Zhang Z, Fowke LC, Wang H, Zhou Y - Downregulation of multiple CDK inhibitor ICK/KRP genes upregulates the E2F pathway and increases cell proliferation, and organ and seed sizes in Arabidopsis

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  • Gene expression

there is no apparent difference in PDV1 ... expression between the frs4/cpd25 mutant and the wild type

Gao Y, Liu H, An C, Shi Y, Liu X, Yuan W, Zhang B, Yang J, Yu C, Gao H - Arabidopsis FRS4/CPD25 and FHY3/CPD45 work cooperatively to promote the expression of the chloroplast division gene ARC5 and chloroplast division

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  • Gene expression

the expression level of ARC5 in cpd25 is lower than that of the wild type ... the expression of ARC5 in 20-day-old plate-grown frs4/cpd25 plants was 10.8% of that of wild-type plants and the expression of ARC5 in 40-day-old soil-grown frs4/cpd25 plants was 19.7% of that of wild-type plants

Gao Y, Liu H, An C, Shi Y, Liu X, Yuan W, Zhang B, Yang J, Yu C, Gao H - Arabidopsis FRS4/CPD25 and FHY3/CPD45 work cooperatively to promote the expression of the chloroplast division gene ARC5 and chloroplast division

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  • Gene expression

transformation of the fhy3/cpd45 mutant with a 35Spro-CPD25 transgene ... Quantitative RT-PCR data indicated that the level of ARC5 in the transgenic plants was even lower than that in fhy3/cpd45

Gao Y, Liu H, An C, Shi Y, Liu X, Yuan W, Zhang B, Yang J, Yu C, Gao H - Arabidopsis FRS4/CPD25 and FHY3/CPD45 work cooperatively to promote the expression of the chloroplast division gene ARC5 and chloroplast division

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  • Gene expression

there is no apparent difference in ... PDV2 expression between the frs4/cpd25 mutant and the wild type

Gao Y, Liu H, An C, Shi Y, Liu X, Yuan W, Zhang B, Yang J, Yu C, Gao H - Arabidopsis FRS4/CPD25 and FHY3/CPD45 work cooperatively to promote the expression of the chloroplast division gene ARC5 and chloroplast division

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  • Gene expression

frs4/cpd25 mutant was transformed with a 35Spro-CPD45 transgene ... Quantitative RT-PCR analysis indicated that the level of ARC5 in the transgenic plants was recovered to a level even slightly higher than that in the wild type

Gao Y, Liu H, An C, Shi Y, Liu X, Yuan W, Zhang B, Yang J, Yu C, Gao H - Arabidopsis FRS4/CPD25 and FHY3/CPD45 work cooperatively to promote the expression of the chloroplast division gene ARC5 and chloroplast division

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ... DMC1

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

large and statistically significant increases (greater than four-fold) in transcript levels were observed for several genes in ctf7-1 plants, including ... BRCA1 (a ubiquitin ligase

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 plants ... no significant change was observed for ... the M-phase checkpoint genes MAD2

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ... SMC1

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

large and statistically significant increases (greater than four-fold) in transcript levels were observed for several genes in ctf7-1 plants, including ... PARP2 (a polymerase

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 plants ... no significant change was observed for ... CDKA1, which regulates the transition from mitosis to endocycle

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 plants ... Smaller increases (approximately two-fold) were observed for ... SMC6B

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 plants ... no significant change was observed for ATR (a kinase involved in single-strand break repair

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

large and statistically significant increases (greater than four-fold) in transcript levels were observed for several genes in ctf7-1 plants, including: ATM (a kinase)

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

large and statistically significant increases (greater than four-fold) in transcript levels were observed for several genes in ctf7-1 plants, including ... TOPOII-a (a topoisomerase

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 plants ... Smaller increases (approximately two-fold) were observed for SMC5

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 plants ... Smaller increases (approximately two-fold) were observed for ... SRS2

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ... BRCA2B

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 ... No significant increase was observed for the mitotic checkpoint gene BUB1.3

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

in ctf7-1 plants ... no significant change was observed for ... NQK1

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ... CDC45, a gene that codes for an S-phase licensing factor and is required for meiosis

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ATM

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ... ATR

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

subcellular localization of AtCTF7 in Arabidopsis protoplasts indicated that AtCTF7 localizes to the nucleus

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

large and statistically significant increases (greater than four-fold) in transcript levels were observed for several genes in ctf7-1 plants, including ... CYCB1;1 (a G2/M checkpoint gene

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ... RAD51C

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

large and statistically significant increases (greater than four-fold) in transcript levels were observed for several genes in ctf7-1 plants, including ... RAD51 (a gene involved in homology-dependent DNA repair

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

Given the developmental defects observed in ctf7-1 meiocytes the transcript level of highly expressed meiotic genes (Yang et al., 2011b) was measured by QPCR ... significant increases in transcript levels were observed for ... SMC3

Bolaños-Villegas P, Yang X, Wang HJ, Juan CT, Chuang MH, Makaroff CA, Jauh GY - Arabidopsis CHROMOSOME TRANSMISSION FIDELITY 7 (AtCTF7/ECO1) is required for DNA repair, mitosis and meiosis

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  • Gene expression

DLK2 ... unresponsive to Z–CL in max2

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

DLK2 ... induction by 1 and 10 µm Z–CL was observed in max1–1

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

DLK2 ... induction by 1 and 10 µm Z–CL was observed in ... max3–9 mutants

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

STH7 ... in response to 10 µm Z–CL ... showed similar weak responses in wild-type and kai2

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

STH7 ... induction by 1 and 10 µm Z–CL was observed in ... and max3–9 mutants

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

DLK2 in response to 10 µm Z–CL ... showed similar weak responses in wild-type and kai2

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

STH7 ... unresponsive to Z–CL in max2

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

STH7 ... in response to 10 µm Z–CL ... had a greatly reduced response in Atd14

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

STH7 ... unresponsive to Z–CL in ... the Atd14 kai2 double mutant

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

DLK2 in response to 10 µm Z–CL ... had a greatly reduced response in Atd14

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

Treatment of seedlings with 1 µm GR24 increased expression fivefold (STH7) ... whereas 1 µm Z–CL increased expression less than twofold, and even 10 µm Z–CL was only half as active as 1 µm GR24

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

DLK2 ... unresponsive to Z–CL in ... the Atd14 kai2 double mutant

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

STH7 ... induction by 1 and 10 µm Z–CL was observed in max1–1

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

Treatment of seedlings with 1 µm GR24 increased expression ... ninefold (DLK2 ... whereas 1 µm Z–CL increased expression less than twofold, and even 10 µm Z–CL was only half as active as 1 µm GR24

Scaffidi A, Waters MT, Ghisalberti EL, Dixon KW, Flematti GR, Smith SM - Carlactone-independent seedling morphogenesis in Arabidopsis

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  • Gene expression

PRR5 ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

glutathione peroxidases (ATGPX7 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

in tic-2 ... a putative spermidine synthase (At5g19530) was slightly induced

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

CAT3 ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

PSEUDORESPONSE REGULATORS7 (PRR7 ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

LUX ARRHYTHMO/PCL1 (LUX ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

peroxiredoxins including ... PER73 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... SNRK2.2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including EARLY RESPONSIVE TO DEHYDRATIONs (ERD7 ... The elevated expression ... in tic-2 at dawn was additionally confirmed by qRT-PCR

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

CCA1 HIKING EXPEDITION 1 (CHE ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Enhanced starch accumulation in tic-2 seems to be in contradiction with our transcriptome profile, as several key genes involved in starch degradation ... STARCH EXCESS 1 (SEX1 ... induced in tic-2 ... To confirm our microarray data, we determined transcript levels by a qRT-PCR analysis ... SEX1 ... consistently up-regulated in tic-2 relative to Col at dawn

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

in tic-2 ... Induction of ... PHYA

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

CAT1 ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

In our microarray data ... GSH1 (At4g23100 ... not found to be differentially expressed in tic-2, compared with the wild type

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

CAT3 ... arrhythmic in tic-2 under diurnal conditions, whereas they displayed diurnal expression pattern in Col

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Enhanced starch accumulation in tic-2 seems to be in contradiction with our transcriptome profile, as several key genes involved in starch degradation ... AMYLASE 3 (AMY3 ... induced in tic-2 ... To confirm our microarray data, we determined transcript levels by a qRT-PCR analysis. AMY3 ... consistently up-regulated in tic-2 relative to Col at dawn

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... COLD REGULATED 15A (COR15a ... The elevated expression of COR15A ... in tic-2 at dawn was additionally confirmed by qRT-PCR

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

tic transcriptome profile ... arginine carboxylases ... At4g34710 ... which synthesize putrescine, were repressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

tic transcriptome profile ... arginine carboxylases ... At2g16500 ... which synthesize putrescine, were repressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

PRR3 ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

our microarray data showed that ß-AMYLASE 3 (BAM3), which encodes a maltose-producing enzyme, is repressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... RD19a

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... RESPONSE TO DESSICATION 22 (RD22 ... The elevated expression of ... RD22 in tic-2 at dawn was additionally confirmed by qRT-PCR

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... COR47

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... DEHYDRATATION RESPONSIVE ELEMENT BINDING PROTEIN 2A (DREB2A

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

tic-2 accumulated higher amounts of total glutathione (Figure 4a). Pools of both reduced (GSH) and oxidized (GSSG) glutathione were higher in tic-2; therefore, the GSH/GSSG ratio was similar to or slightly lower than in the wild type

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

glutathione S-transferases ... GSTU8 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

peroxiredoxins including PER69 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Enhanced starch accumulation in tic-2 seems to be in contradiction with our transcriptome profile, as several key genes involved in starch degradation ... SEX4 ... induced in tic-2 ... To confirm our microarray data, we determined transcript levels by a qRT-PCR analysis ... SEX4 ... consistently up-regulated in tic-2 relative to Col at dawn

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

In our microarray data ... GSH2 (At5g27380 ... not found to be differentially expressed in tic-2, compared with the wild type

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

glutathione S-transferases (GST1 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

peroxiredoxins including ... PER1 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... abscisic acid responsive element-binding factor (At1g49720 ... The elevated expression of ... At1g49720 ... in tic-2 at dawn was additionally confirmed by qRT-PCR

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including EARLY RESPONSIVE TO DEHYDRATION ... ERD3

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

THYLAKOIDAL PEROXIDASE (tAPX ... overexpressed in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

we observed that starvation-triggering genes ... At1g76410 ... induced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

we observed that starvation-triggering genes ... At3g59940 ... induced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

in tic-2 ... misexpression of ... homeobox transcription factors ... HAT4

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

in tic-2 ... misexpression of ... homeobox transcription factors (HAT2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

CAT1 ... arrhythmic in tic-2 under diurnal conditions, whereas they displayed diurnal expression pattern in Col

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Cu-Zn SUPEROXIDE DISMUTASE (CSD2 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

GST1 ... arrhythmic in tic-2 under diurnal conditions, whereas they displayed diurnal expression pattern in Col

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including EARLY RESPONSIVE TO DEHYDRATION ... ERD4

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

in tic-2 ... Induction of PIF4

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... SNF1-RELATED PROTEIN KINASE 2.3 (SNRK2.3

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Our microarray dataset showed that several ABA- and drought-related genes are up-regulated in tic-2, including ... ABA INSENSITIVE1 (ABI1

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

SENESCENCE-RELATED GENE 1 (SRG1 ... reduced in tic-2

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

Enhanced starch accumulation in tic-2 seems to be in contradiction with our transcriptome profile, as several key genes involved in starch degradation ... PHOSPHOGLUCAN WATER DIKINASE (PWD ... induced in tic-2 ... To confirm our microarray data, we determined transcript levels by a qRT-PCR analysis ... PWD ... consistently up-regulated in tic-2 relative to Col at dawn

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

in tic-2 ... Induction of ... PIF6

Sanchez-Villarreal A, Shin J, Bujdoso N, Obata T, Neumann U, Du SX, Ding Z, Davis AM, Shindo T, Schmelzer E, Sulpice R, Nunes-Nesi A, Stitt M, Fernie AR, Davis SJ - TIME FOR COFFEE is an essential component in the maintenance of metabolic homeostasis in Arabidopsis thaliana

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  • Gene expression

GFP fusion proteins of Arabidopsis ... WDR12 ... mainly localized to the nucleolus

Cho HK, Ahn CS, Lee HS, Kim JK, Pai HS - Pescadillo plays an essential role in plant cell growth and survival by modulating ribosome biogenesis

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  • Gene expression

GFP fusion proteins of Arabidopsis BOP1 ... mainly localized to the nucleolus

Cho HK, Ahn CS, Lee HS, Kim JK, Pai HS - Pescadillo plays an essential role in plant cell growth and survival by modulating ribosome biogenesis

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  • Gene expression

To determine the subcellular localization of AtPES and its mutants, GFP fusion constructs of full-length AtPES and its mutants [carrying deletion of the PES-N domain (∆PES-N), deletion of the BRCT domain (∆BRCT), or a mutation of the potential sumoylation site, LKKE to LAAE (Sumo-m)] were expressed in N. benthamiana leaves via agroinfiltration. Confocal laser scanning microscopy of the leaf epidermal cells revealed that AtPES:GFP was predominantly localized in the nucleolus, although a faint signal was also detected in the nucleoplasm at longer exposure (Figure 2b). ∆PES-N:GFP, however, exhibited no nucleolar signal, but had diffuse nucleoplasmic distribution, suggesting the importance of the PES-N domain for nucleolar localization of PES in plant cells. Interestingly, ∆BRCT:GFP was strongly detected in the nucleolus and at discrete loci in the nucleoplasm

Cho HK, Ahn CS, Lee HS, Kim JK, Pai HS - Pescadillo plays an essential role in plant cell growth and survival by modulating ribosome biogenesis

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  • Gene expression

in AtMBP-1 over-expressing plants ... SnRK2.2 ... ABA responsiveness ... was not affected by AtMBP-1 expression

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

expression of ... ABI4 ... was more responsive to ABA in AtMBP-1 over-expressing plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

expression of ABI3 ... was more responsive to ABA in AtMBP-1 over-expressing plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

Em6 ... was upregulated more strongly in response to ABA treatments in AtMBP-1 over-expressing plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

in AtMBP-1 over-expressing plants ... AFP ... 3 ... ABA responsiveness ... was not affected by AtMBP-1 expression

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

Very little AtMBP-1 was observed to accumulate in 35S::AtMBP-1 transgenic plants, despite the fact that AtMBP-1 transcript levels were generally more abundant than those for LOS2 in 35S::LOS2 plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

the response of ABF3 expression to ABA was not affected in 35S::AtMBP-1 plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

the increase in STZ/ZAT10 expression at 4°C in 35S::AMBP-1 plants was delayed and partially suppressed, relative to WT plants (Figure S7), a finding that indicated that constitutive expression of AtMBP-1 down-regulates the responsiveness of STZ/ZAT10 to low temperature

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

in AtMBP-1 over-expressing plants ... AFP1 ... ABA responsiveness ... was not affected by AtMBP-1 expression

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

RAB18 was upregulated more strongly in response to ABA treatments in AtMBP-1 over-expressing plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

The expression of ... ABI2 ... was not significantly affected in AtMBP-1 expressing plants compared with WT plants under ABA treatment

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

Analysis of fluorescence using confocal microscopy indicated that recombinant YFP-tagged protein in 35S::LOS2 expressing plants was localized in both cytosolic and nuclear cellular compartments

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

The expression of ABI1 ... was not significantly affected in AtMBP-1 expressing plants compared with WT plants under ABA treatment

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

in AtMBP-1 over-expressing plants ... SnRK2.3 ... ABA responsiveness ... was not affected by AtMBP-1 expression

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

Em1 ... was upregulated more strongly in response to ABA treatments in AtMBP-1 over-expressing plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

expression of ... ABI5 ... was more responsive to ABA in AtMBP-1 over-expressing plants

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

Analysis of fluorescence using confocal microscopy indicated that recombinant YFP-tagged protein in 35S::LOS2 expressing plants was localized in both cytosolic and nuclear cellular compartments, while the N-terminal truncated AtMBP-1–YFP fusion protein expressed in 35S::AtMBP-1 expressing plants was predominantly localized to nuclei

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

in AtMBP-1 over-expressing plants ... AFP ... 2 ... ABA responsiveness ... was not affected by AtMBP-1 expression

Kang M, Abdelmageed H, Lee S, Reichert A, Mysore KS, Allen RD - AtMBP-1, an alternative translation product of LOS2, affects abscisic acid responses and is modulated by the E3 ubiquitin ligase AtSAP5

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  • Gene expression

Twenty-four hours after radical protrusion, no significant difference could be detected in the mRNA levels of these six genes between the wildtype and the elo3 samples, confirming that the cells were able to activate the transcription of these core cell cycle regulators ... when the small elo3 seedlings began to display signs of growth arrest ... three CYCs ... showed approximately 50% reduction in their mRNA levels in elo3 mutants

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

Twenty-four hours after radical protrusion, no significant difference could be detected in the mRNA levels of these six genes between the wildtype and the elo3 samples, confirming that the cells were able to activate the transcription of these core cell cycle regulators ... when the small elo3 seedlings began to display signs of growth arrest ... no difference was found in CDKA;1 expression levels between the two samples

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

level of CYCB1;1 ... responded to sucrose stimulation in elo3 with ... increases ... To determine how soon the cell cycle regulators respond to the presence of exogenous sugar, we treated 7-day-old fully arrested small elo3-14 with 1.5% sucrose and compared the expression levels of the six core cell cycle genes before and after the treatment, using qRT-PCR. Compared to the 2 days it takes to have any visible phenotypic rescue in these seedlings, a moderate increase in the expression levels of all six genes could be detected after 4 h of treatment. Twenty-four hours of treatment resulted in four to nine fold of increase in their mRNA levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in situ hybridization using an anti-sense probe of ELO3 detected ELO3 mRNA in the meristematic regions of both the shoot and the root

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in wild type, sucrose had little effect in enhancing the transcription of ... CYCD3;1

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in wild type, sucrose had little effect in enhancing the transcription of CDKA;1

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

no difference could be seen in CLV3 expression between the wildtype ( Fig. 3A) and elo3 ( Fig. 3E) seedlings, as detected by the activity of the CLV3::GUS reporter ( Brand et al., 2002). One week later, as the wildtype shoot meristem grew into a dome-shaped structure, CLV3::GUS activities increased significantly ( Fig. 3C). In comparison, the CLV3::GUS domain was present but much smaller in elo3-14 of the same age ( Fig. 3G, compared to C). Surprisingly, we were able to detect CLV3::GUS activity in the mutant shoot meristem at least 10 days after germination, indicating that the shoot stem cell population in the growth-arrested elo3 mutants remain active

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

the stem cell cluster in the rescued elo3 seedlings remains significantly smaller than in the wildtype samples, as measured by the activities of the CLV3::GUS reporter

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

situ hybridization using an anti-sense probe of ELO3 ... this expression persists and expands into young leaves as the seedlings develop

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in situ hybridization using an anti-sense probe of ELO3 detected ELO3 mRNA ... In the shoot, it is found in the meristem ... immediately after germination

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

Twenty-four hours after radical protrusion, no significant difference could be detected in the mRNA levels of these six genes between the wildtype and the elo3 samples, confirming that the cells were able to activate the transcription of these core cell cycle regulators ... when the small elo3 seedlings began to display signs of growth arrest ... CDKB1's ... showed approximately 50% reduction in their mRNA levels in elo3 mutants

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in wild type, sucrose ... was able to significantly increase the level of CYCB1;1

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

level of ... CDKB1;1 ... responded to sucrose stimulation in elo3 with ... increases ... To determine how soon the cell cycle regulators respond to the presence of exogenous sugar, we treated 7-day-old fully arrested small elo3-14 with 1.5% sucrose and compared the expression levels of the six core cell cycle genes before and after the treatment, using qRT-PCR. Compared to the 2 days it takes to have any visible phenotypic rescue in these seedlings, a moderate increase in the expression levels of all six genes could be detected after 4 h of treatment. Twenty-four hours of treatment resulted in four to nine fold of increase in their mRNA levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

sugar-rescued elo3 seedlings ... clear increase in histone H4 expression ( Fig. 5H, compared to F), although it is still below the wildtype levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

CDKA;1 ... responded to sucrose stimulation in elo3 with ... increases ... To determine how soon the cell cycle regulators respond to the presence of exogenous sugar, we treated 7-day-old fully arrested small elo3-14 with 1.5% sucrose and compared the expression levels of the six core cell cycle genes before and after the treatment, using qRT-PCR. Compared to the 2 days it takes to have any visible phenotypic rescue in these seedlings, a moderate increase in the expression levels of all six genes could be detected after 4 h of treatment. Twenty-four hours of treatment resulted in four to nine fold of increase in their mRNA levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in wild type, sucrose ... was able to significantly increase the level of ... CDKB1;1

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

Twenty-four hours after radical protrusion, no significant difference could be detected in the mRNA levels of these six genes between the wildtype and the elo3 samples, confirming that the cells were able to activate the transcription of these core cell cycle regulators ... when the small elo3 seedlings began to display signs of growth arrest ... three CYCs ... showed approximately 50% reduction in their mRNA levels in elo3 mutants

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

level of ... CDKB1;2 ... responded to sucrose stimulation in elo3 with ... increases ... To determine how soon the cell cycle regulators respond to the presence of exogenous sugar, we treated 7-day-old fully arrested small elo3-14 with 1.5% sucrose and compared the expression levels of the six core cell cycle genes before and after the treatment, using qRT-PCR. Compared to the 2 days it takes to have any visible phenotypic rescue in these seedlings, a moderate increase in the expression levels of all six genes could be detected after 4 h of treatment. Twenty-four hours of treatment resulted in four to nine fold of increase in their mRNA levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in situ hybridization using an anti-sense probe of ELO3 ... In the shoot, it is found in the ... emerging leaves immediately after germination

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

Three days after germination, STM is expressed in the wildtype shoot meristem and is cleared from the emerging leaf primordia ( Fig. 3B). At this stage, the STM domain encompassed the whole shoot meristem region in the small elo3-14 seedlings ( Fig. 3F), which is consistent with their failure in leaf initiation. Four days later, while the STM domain expanded in the wildtype shoot meristem ( Fig. 3D), it was no longer detectable in the growth arrested elo3 mutant seedlings

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

CYCA2;1 ... responded to sucrose stimulation in elo3 with ... increases ... To determine how soon the cell cycle regulators respond to the presence of exogenous sugar, we treated 7-day-old fully arrested small elo3-14 with 1.5% sucrose and compared the expression levels of the six core cell cycle genes before and after the treatment, using qRT-PCR. Compared to the 2 days it takes to have any visible phenotypic rescue in these seedlings, a moderate increase in the expression levels of all six genes could be detected after 4 h of treatment. Twenty-four hours of treatment resulted in four to nine fold of increase in their mRNA levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

Twenty-four hours after radical protrusion, no significant difference could be detected in the mRNA levels of these six genes between the wildtype and the elo3 samples, confirming that the cells were able to activate the transcription of these core cell cycle regulators ... when the small elo3 seedlings began to display signs of growth arrest ... CDKB1's ... showed approximately 50% reduction in their mRNA levels in elo3 mutants

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in wild type, sucrose ... was able to significantly increase the level of ... CDKB1;2

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

Twenty-four hours after radical protrusion, no significant difference could be detected in the mRNA levels of these six genes between the wildtype and the elo3 samples, confirming that the cells were able to activate the transcription of these core cell cycle regulators ... when the small elo3 seedlings began to display signs of growth arrest ... three CYCs ... showed approximately 50% reduction in their mRNA levels in elo3 mutants

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

The first step in seedling cell cycle activation is DNA replication (Barroco et al., 2005), and new histone molecules must be synthesized during this process. Therefore, the expression levels of the histone genes are a good indication of DNA synthesis activities. Two days after germination, in situ hybridization using an antisense probe against the histone H4 genes detected abundant signals in the shoot apex of the wildtype seedlings, both in the meristem and the developing leaf primordia ( Fig. 4A). In comparison, the majority of the elo3-14 seedlings showed very little to no histone H4 RNA signal in the shoot apex ( Fig. 4C). The remaining samples, which most likely represent the large class of elo3-14, had slightly more histone H4 expression, but remained significantly below the wildtype levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in wild type, sucrose had little effect in enhancing the transcription of ... CYCA2;1

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

CYCD3;1 ... responded to sucrose stimulation in elo3 with ... increases ... To determine how soon the cell cycle regulators respond to the presence of exogenous sugar, we treated 7-day-old fully arrested small elo3-14 with 1.5% sucrose and compared the expression levels of the six core cell cycle genes before and after the treatment, using qRT-PCR. Compared to the 2 days it takes to have any visible phenotypic rescue in these seedlings, a moderate increase in the expression levels of all six genes could be detected after 4 h of treatment. Twenty-four hours of treatment resulted in four to nine fold of increase in their mRNA levels

Skylar A, Matsuwaka S, Wu X - ELONGATA3 is required for shoot meristem cell cycle progression in Arabidopsis thaliana seedlings

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  • Gene expression

in ... sex1-1 ... GA3ox1 (At1g15550) expression was also largely unaffected

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

pgm ... showed ... negligible expression of KS the following day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

Reductions in the expression of copalyl diphosphate synthase ... were observed in ... sex1-1

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

pgm ... Sugar starvation at night was confirmed by other starvation-induced markers, such as At1g76410

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

in pgm ... GA3ox1 (At1g15550) expression was also largely unaffected

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

The expression of ent-kaurene synthase (KS) during the diurnal cycle had a distinct pattern, which peaked in the afternoon. Strikingly, this peak was absent in ... sex1-1

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

Suc treatment restored the peak of KS expression the following day ... using the adg1-1 mutant

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

adg1-1 ... showed ... negligible expression of KS the following day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

EXP10 ... was upregulated by GAs (see Supplemental Figure 13A online) and displayed a diurnal expression peak at the end of the day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

pgm ... Sugar starvation at night was confirmed by other starvation-induced markers, such as ... trehalose 6-P synthase

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

in ... sex1-1 ... the diurnal expression of GA20ox1 (At4g25420), which is under circadian control (Hisamatsu et al., 2005), was unaffected

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

When grown at twice the normal light intensity ... in pgm ... afternoon peak of KS expression was present

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

sex4-3 ... induction of the sugar starvation marker at night ... DIN6

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

adg1-1 ... Sugar starvation at night was confirmed by other starvation-induced markers, such as ... trehalose 6-P synthase

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

we kept a batch of wild-type plants under normal day/night conditions (Figure 6A), while a second batch of plants was exposed to low light for 1 d, followed by two additional days under normal day/night conditions (Figure 6B ... The expression pattern of GA20ox, on the other hand, was unaffected by the low light over the 3 d

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

sex1-1 ... induction of the sugar starvation marker at night ... DIN6

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

adg1-1 ... Sugar starvation at night was confirmed by other starvation-induced markers, such as At1g76410

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

In lsf1-1, which has the least severe starch-excess phenotype of the mutants studied (Comparot-Moss et al., 2010), KS expression was the closest to the wild-type expression

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

we kept a batch of wild-type plants under normal day/night conditions (Figure 6A), while a second batch of plants was exposed to low light for 1 d, followed by two additional days under normal day/night conditions ... Although EXP10 was not expressed when the KS expression peak was abolished following a night starvation event (Figure 6B), interestingly it was restored the next day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

The increased expression of KS in the afternoon correlates well with higher levels of ent-kaurene in the wild type at the end of the day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

When grown at twice the normal light intensity ... in ... sex1-1 ... afternoon peak of KS expression was present

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

The expression of ent-kaurene synthase (KS) during the diurnal cycle had a distinct pattern, which peaked in the afternoon. Strikingly, this peak was absent in ... pgm

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

sex4-3 ... reduced KS expression the next day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

In order to gain direct evidence linking night starvation to the regulation of KS, we sprayed Suc on the leaves of ... sex1-1 during the night. Interestingly, the Suc treatment restored the peak of KS expression the following day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

Reductions in the expression of copalyl diphosphate synthase ... were observed in pgm

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

in pgm ... the diurnal expression of GA20ox1 (At4g25420), which is under circadian control (Hisamatsu et al., 2005), was unaffected

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

In order to gain direct evidence linking night starvation to the regulation of KS, we sprayed Suc on the leaves of pgm ... during the night. Interestingly, the Suc treatment restored the peak of KS expression the following day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

The starchless mutant ... adg1-1 ... showed expression of the typical marker for sugar starvation (dark inducible6 [DIN6]; Gonzali et al., 2006; Usadel et al., 2008) during the night

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

Reductions in the expression of ... ent-kaurene oxidase were observed in pgm

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

sex1-1 ... reduced KS expression the next day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

we kept a batch of wild-type plants under normal day/night conditions (Figure 6A), while a second batch of plants was exposed to low light for 1 d, followed by two additional days under normal day/night conditions ... EXP1, a GA-induced expansin (see Supplemental Figure 13B online) expressed in stomatal guard cells (Zhang et al., 2011), whose expression rose rapidly each night (Figure 6A). In plants that were exposed to low light for just 1 d, EXP1 expression was severely dampened the night immediately following the period when there had been no KS expression peak

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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So, was the altered KS expression pattern unique to starch mutants, or might it also be observed in wild-type plants experiencing night starvation? To examine this, we kept a batch of wild-type plants under normal day/night conditions (Figure 6A), while a second batch of plants was exposed to low light for 1 d, followed by two additional days under normal day/night conditions (Figure 6B). The low light treatment resulted in low starch content at the end of the first day, together with high expression of the sugar starvation marker (Figure 6B; see Supplemental Figures 12A and 12B online). Over the next 2 d, starch synthesis resumed and the expression of the marker for sugar starvation was consequently low (Figure 6B). In line with what we observed in starch mutants, while KS expression was unaffected during the day under low light, the afternoon peak of KS expression was lost during the second day but resumed the third day

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

The starchless mutants pgm ... showed expression of the typical marker for sugar starvation (dark inducible6 [DIN6]; Gonzali et al., 2006; Usadel et al., 2008) during the night

Paparelli E, Parlanti S, Gonzali S, Novi G, Mariotti L, Ceccarelli N, van Dongen JT, Kölling K, Zeeman SC, Perata P - Nighttime sugar starvation orchestrates gibberellin biosynthesis and plant growth in Arabidopsis

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  • Gene expression

ABCG9pro:GUS ... visualized in the vascular system of the cotyledons

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

In 4-week-old rosette leaves ... ABCG11pro:GUS ... expressed in the vascular system

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

Transcripts for ... ABCG14 were found in all organs analyzed, with an overall higher relative transcript amount in the aerial parts compared with the root

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

In 4-week-old rosette leaves ... ABCG14pro:GUS ... expressed in the vascular system

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

Transcripts for ABCG9 ... were found in all organs analyzed, with an overall higher relative transcript amount in the aerial parts compared with the root

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

expression of ABCG11pro:GUS was identified in the rosette leaf epidermis

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

We first investigated the subcellular localization of ABCG9 ... after transfection of Arabidopsis mesophyll protoplasts prepared from transgenic seedlings expressing the plasma membrane marker low temperature induced protein 6b (GFP–LTi6b) (Cutler et al., 2000) with constructs encoding transcriptional fusions with red fluorescent protein (RFP ... the GFP fluorescent signal (Figure 5a,e) co-localized with the RFP fluorescent signal ... at the plasma membrane of transformed cells ... ABCG9 ... localize to the plasma membrane

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

We first investigated the subcellular localization of ... ABCG14 after transfection of Arabidopsis mesophyll protoplasts prepared from transgenic seedlings expressing the plasma membrane marker low temperature induced protein 6b (GFP–LTi6b) (Cutler et al., 2000) with constructs encoding transcriptional fusions with red fluorescent protein (RFP ... the GFP fluorescent signal (Figure 5a,e) co-localized with the RFP fluorescent signal ... at the plasma membrane of transformed cells ... indicating that ... ABCG14 localize to the plasma membrane

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

Transcripts for ... ABCG11 ... were found in all organs analyzed, with an overall higher relative transcript amount in the aerial parts compared with the root

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

In 4-week-old rosette leaves, ABCG9pro:GUS ... expressed in the vascular system

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

addition, immunolocalization of a HA-tagged version of ... ABCG14 in ... complemented lines confirmed that ... proteins are localized to the plasma membrane in planta

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

The ABCG9pro:GUS signal was restricted to the petiole main vein

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

ABCG11pro:GUS ... visualized in the vascular system of the cotyledons

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

immunolocalization of a HA-tagged version of ABCG9 ... in ... complemented lines confirmed that ... proteins are localized to the plasma membrane in planta

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

ABCG14pro:GUS ... visualized in the vascular system of the cotyledons

Le Hir R, Sorin C, Chakraborti D, Moritz T, Schaller H, Tellier F, Robert S, Morin H, Bako L, Bellini C - ABCG9, ABCG11 and ABCG14 ABC transporters are required for vascular development in Arabidopsis

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  • Gene expression

inducible suppression of RBR ... Analysis of transcripts for the control genes AtSPCH (SPEECHLESS ... indicated an increase in ... mean level in line with previous reports (Borghi et al., 2010), although these differences were not significantly different under our conditions

Dorca-Fornell C, Pajor R, Lehmeier C, Pérez-Bueno M, Bauch M, Sloan J, Osborne C, Rolfe S, Sturrock C, Mooney S, Fleming A - Increased leaf mesophyll porosity following transient retinoblastoma-related protein silencing is revealed by microcomputed tomography imaging and leads to a system-level physiological response to the altered cell division pattern

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  • Gene expression

inducible suppression of RBR was followed by a decrease in the transcript level ... for AtAGP19

Dorca-Fornell C, Pajor R, Lehmeier C, Pérez-Bueno M, Bauch M, Sloan J, Osborne C, Rolfe S, Sturrock C, Mooney S, Fleming A - Increased leaf mesophyll porosity following transient retinoblastoma-related protein silencing is revealed by microcomputed tomography imaging and leads to a system-level physiological response to the altered cell division pattern

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  • Gene expression

inducible suppression of RBR ... Analysis of transcripts for the control genes ... AtTMM (TOO MANY MOUTHS) indicated an increase in ... mean level in line with previous reports (Borghi et al., 2010), although these differences were not significantly different under our conditions

Dorca-Fornell C, Pajor R, Lehmeier C, Pérez-Bueno M, Bauch M, Sloan J, Osborne C, Rolfe S, Sturrock C, Mooney S, Fleming A - Increased leaf mesophyll porosity following transient retinoblastoma-related protein silencing is revealed by microcomputed tomography imaging and leads to a system-level physiological response to the altered cell division pattern

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  • Gene expression

PSBQ–L ... extrinsic sub-units of photosystem II) showed a decrease in the transcript level 24 h after suppression of RBR

Dorca-Fornell C, Pajor R, Lehmeier C, Pérez-Bueno M, Bauch M, Sloan J, Osborne C, Rolfe S, Sturrock C, Mooney S, Fleming A - Increased leaf mesophyll porosity following transient retinoblastoma-related protein silencing is revealed by microcomputed tomography imaging and leads to a system-level physiological response to the altered cell division pattern

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  • Gene expression

inducible suppression of RBR was followed by a decrease in the transcript level for AtAGP18 (as previously reported)

Dorca-Fornell C, Pajor R, Lehmeier C, Pérez-Bueno M, Bauch M, Sloan J, Osborne C, Rolfe S, Sturrock C, Mooney S, Fleming A - Increased leaf mesophyll porosity following transient retinoblastoma-related protein silencing is revealed by microcomputed tomography imaging and leads to a system-level physiological response to the altered cell division pattern

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  • Gene expression

PSBO ... extrinsic sub-units of photosystem II) showed a decrease in the transcript level 24 h after suppression of RBR

Dorca-Fornell C, Pajor R, Lehmeier C, Pérez-Bueno M, Bauch M, Sloan J, Osborne C, Rolfe S, Sturrock C, Mooney S, Fleming A - Increased leaf mesophyll porosity following transient retinoblastoma-related protein silencing is revealed by microcomputed tomography imaging and leads to a system-level physiological response to the altered cell division pattern

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  • Gene expression

Ten genes involved in the flavonoid biosynthetic pathway were up-regulated 3.27- to 24.35-fold in mTCP3 plants (Table 1). These include the regulatory R2R3-MYB gene PAP1

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

in mTCP3 plants ... Genes that negatively affect the auxin response, such as CYP83B1/SUR2, which encodes a negative regulator of auxin production ... were up-regulated 3.27 ... fold

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

A 2.07- to 8.62-fold down-regulation was observed for auxin signaling-related genes in mTCP3 plants. These genes ... encode the indole-3-acetic acid amido synthase (GH3.17

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

A 2.07- to 8.62-fold down-regulation was observed for auxin signaling-related genes in mTCP3 plants. These genes encode ... the auxin-inducible transcription factor ... AUX/IAA29

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Ten genes involved in the flavonoid biosynthetic pathway were up-regulated 3.27- to 24.35-fold in mTCP3 plants (Table 1). These include ... structural genes encoding key flavonoid biosynthetic enzymes, such as ... CHS/TT4

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Enhanced expression was observed for auxin-related genes in TCP3SRDX plants, such as ... PAR1 (3.14-fold), that encodes a transcriptional repressor of the indole-3-acetic acid-responsive genes

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

A 2.07- to 8.62-fold down-regulation was observed for auxin signaling-related genes in mTCP3 plants. These genes encode proteins that participate in polar auxin transport ... AUX1

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

A 2.07- to 8.62-fold down-regulation was observed for auxin signaling-related genes in mTCP3 plants. These genes encode proteins that participate in polar auxin transport ... ATP-binding cassette transporter 1/PGP1

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

A 2.07- to 8.62-fold down-regulation was observed for auxin signaling-related genes in mTCP3 plants. These genes ... encode ... the auxin receptor ... TIR1

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Ten genes involved in the flavonoid biosynthetic pathway were up-regulated 3.27- to 24.35-fold in mTCP3 plants (Table 1). These include ... structural genes encoding key flavonoid biosynthetic enzymes, such as ... DFR/TT3

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Relative to wild-type plants (Figure 3a,d), expression of mTCP3 induced a theeefold reduction in the pDR5::GUS reporter activity

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Enhanced expression was observed for auxin-related genes in TCP3SRDX plants, such as AUX/IAA29 (3.24-fold

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

A 2.07- to 8.62-fold down-regulation was observed for auxin signaling-related genes in mTCP3 plants. These genes encode proteins that participate in polar auxin transport ... ATP-binding cassette transporter 19/PGP19

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

To investigate whether addition of exogenous auxin is able to rescue the reduced auxin response observed in mTCP3 plants, wild-type, mTCP3 and TCP3SRDX plantlets expressing pDR5::GUS were exposed for 15 h prior to GUS staining to 1-naphthaleneacetic acid (NAA), which is more long-lived than indole-3-acetic acid (IAA). Incubation of mTCP3 seedlings in the presence of NAA did not result in increased activity of the pDR5::GUS reporter (Figure 3d,g,h), in contrast with the significantly elevated expression of this reporter in wild-type (Figure 3d,e,f) and TCP3SRDX plants (Figure 3d,i,j). These results suggest that expression of mTCP3 reduces auxin transport capacity and/or sensitivity

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Ten genes involved in the flavonoid biosynthetic pathway were up-regulated 3.27- to 24.35-fold in mTCP3 plants (Table 1). These include ... structural genes encoding key flavonoid biosynthetic enzymes, such as ... LDOX/TT18

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Ten genes involved in the flavonoid biosynthetic pathway were up-regulated 3.27- to 24.35-fold in mTCP3 plants (Table 1). These include ... structural genes encoding key flavonoid biosynthetic enzymes, such as 4CL

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

in mTCP3 plants ... Genes that negatively affect the auxin response, such as ... the auxin-responsive gene SAUR (At2 g46690), which possibly encodes a negative regulator of auxin synthesis and transport ... were up-regulated ... 2.05-fold

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Enhanced expression was observed for auxin-related genes in TCP3SRDX plants, such as ... SAUR68

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

Ten genes involved in the flavonoid biosynthetic pathway were up-regulated 3.27- to 24.35-fold in mTCP3 plants (Table 1). These include ... structural genes encoding key flavonoid biosynthetic enzymes, such as ... F3H/TT6

Li S, Zachgo S - TCP3 interacts with R2R3-MYB proteins, promotes flavonoid biosynthesis and negatively regulates the auxin response in Arabidopsis thaliana

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  • Gene expression

in the clpR4-3 proteome ... upregulated ... related to starch metabolism ... AMY3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated proteins ... CP12-2

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

the clpR4-3 mutation led to a decline in proteins functioning in the Calvin–Benson cycle ... SBPase

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... PRX Q ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... FtsH2 ... was ... reduced

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

the clpR4-3 mutation led to a decline in proteins functioning in ... amino acid biosynthesis ... GS2

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... 47-2 ... PRX Q ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... 47-2 ... FtsH2 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... peptidase (At5G42390 ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... clpR4-3 ... PRX Q ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... upregulated ... oxidative stress ... ENH1

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... RNA-binding ... CP33 ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... clpR4-3 ... CPN21 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... ClpB3 ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated proteins ... CP12-1

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... upregulated proteins are involved in PSI biogenesis ... PsaC

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... FtsH8 ... was ... reduced

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated ... CPN21 ... which may be involved in Rubisco assembly

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... HSP90.5 ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

To investigate the effect of the clpR4 mutation on plastid rRNA processing, we examined levels of rRNAs (23S, 16S, 5S, and 4.5S) using RNA blotting with gene-specific probes. The plastid rrn operon shown in Figure 5(a) is transcribed as a large polycistronic precursor RNA, which is processed subsequently by a series of endo- and exo-ribonucleases to yield mature rRNAs and tRNAs (Harris et al., 1994a). Except for mature 5S and 16S rRNAs, 4.5S and three mature 23S (1.2-, 1.0- and 0.5-kb) rRNAs were clearly reduced in ... 47-2 mutants ... compared with WT

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... 47-2 ... CPN21 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... RPL12C ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

Immunoblotting analysis showed that VAR2 accumulation was apparently increased in 47-2 compared with thf1

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

Fe-SOD ... involved in antioxidative defense ... downregulated in clpR4-3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... downregulated proteins ... carotenoid metabolism ... CCD4

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... AT5G24490 ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

GSTF8 ... involved in antioxidative defense ... downregulated in clpR4-3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... FtsH2 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

The levels of ... FtsH8 ... were dramatically reduced in thf1

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... OE33/PsbO1 ... in the PSII oxygen-evolving complex ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... upregulated ... CP12-1

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

PRX Q ... involved in antioxidative defense ... downregulated in clpR4-3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... clpR4-3 ... FtsH8 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

the clpR4-3 mutation led to a decline in proteins functioning in ... amino acid biosynthesis ... His-HF

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... clpR4-3 ... CP12-1 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... downregulated proteins are associated with oxidative defense ... PRX Q

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated ... related to ... chlorophyll biosynthesis ... HEMB

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... 47-2 ... THF1 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... Cpn60B2 ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... RPL1 ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... PetA in the cytochrome b6f complex ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... 47-2 ... CP12-1 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... RNA-binding ... RBP29 ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... ClpR2, was also down-regulated by about three-fold

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... downregulated ... protein folding in the thylakoid lumen ... FKBP13

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

The levels of ... FtsH5/VAR1 were dramatically reduced in thf1

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated ... related to starch metabolism ... SBE2.2

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... CPN21 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... exoribonuclease (PNPase) that mediates global RNA decay ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... upregulated ... plastid protein translation ... PSRP2

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... upregulated ... CPN21/GroES

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... 47-2 ... FtsH8 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

47-2 ... accumulated higher levels of several rRNA precursors, e.g. 4.5S plus 23S (23S 3.2-kb fragment) and 16S precursors, than WT

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... upregulated ... oxidative stress ... PRXII E

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... RNA-binding ... RBP31 ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

To investigate the effect of the clpR4 mutation on plastid rRNA processing, we examined levels of rRNAs (23S, 16S, 5S, and 4.5S) using RNA blotting with gene-specific probes. The plastid rrn operon shown in Figure 5(a) is transcribed as a large polycistronic precursor RNA, which is processed subsequently by a series of endo- and exo-ribonucleases to yield mature rRNAs and tRNAs (Harris et al., 1994a). Except for mature 5S and 16S rRNAs, 4.5S and three mature 23S (1.2-, 1.0- and 0.5-kb) rRNAs were clearly reduced in clpR4-3 ... compared with WT

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... downregulated ... plastid gene transcription ... PTAC16

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... downregulated proteins are associated with oxidative defense ... DHAR3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

the clpR4-3 mutation led to a decline in proteins functioning in ... nucleotide metabolism ... AMK2

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... FtsH8 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated ... jasmonic acid biosynthesis ... LOX2

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

the clpR4-3 mutation led to a decline in proteins functioning in ... de novo fatty acid biosynthesis ... CAC3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

DHAR3 ... involved in antioxidative defense ... downregulated in clpR4-3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... downregulated ... amino acid biosynthesis ... ASP5

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

thf1 produced the same levels of rRNAs as WT

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... PsbQ in the PSII oxygen-evolving complex ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... VIPP1 required for the assembly of the photosynthetic apparatus in collaboration with Alb3 ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... translation elongation factors ... EF-Ts ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

The GFP signal was overlapped with the chlorophyll autofluorescence, indicating that ClpR4 is localized in chloroplasts

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... clpR4-3 ... THF1 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... CP12-1 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated ... ABA-mediated photoprotection ... PGL35

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... translation elongation factor ... EF-Tu ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

In clpR4-3 ... translation elongation factor ... SCO/EF-G ... upregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

the clpR4-3 mutation led to a decline in proteins functioning in the Calvin–Benson cycle ... RPE

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

the clpR4-3 mutation led to a decline in proteins functioning in the Calvin–Benson cycle ... RBCL

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... upregulated ... methylerythritol phosphate (MEP) pathway (ISPG

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in ... clpR4-3 ... FtsH2 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

The levels of FtsH2/VAR2 ... were dramatically reduced in thf1

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... PsbS ... was ... reduced

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

PRX M1 ... involved in antioxidative defense ... downregulated in clpR4-3

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

clpR4-3 ... accumulated higher levels of several rRNA precursors, e.g. 4.5S plus 23S (23S 3.2-kb fragment) and 16S precursors, than WT

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the clpR4-3 proteome ... THF1 ... was ... reduced

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in thf1 ... THF1 ... were ... downregulated

Wu W, Zhu Y, Ma Z, Sun Y, Quan Q, Li P, Hu P, Shi T, Lo C, Chu IK, Huang J - Proteomic evidence for genetic epistasis: ClpR4 mutations switch leaf variegation to virescence in Arabidopsis

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  • Gene expression

in the progeny of a pdf2-2 mutant additionally heterozygous for atml1-3, a small but significant increase in ACR4 expression levels was consistently observed

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

FLAG–PDF2 fusions were generated under the control of the PDF1 promoter ... Expression of ACR4 in backgrounds over-expressing FLAG–PDF2 was significantly decreased compared to that in wild-type plants, again consistent with negative feedback by PDF2 on the ACR4 promoter

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

FLAG–PDF2 fusions were generated under the control of the PDF1 promoter ... ATML1 ... significantly down-regulated in PDF2 over-expressing plants

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

ale1-4 mutant seedlings ... We found no change in the expression of ... PDF2

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

gso-1 gso2-1 double mutant ... We found no change in the expression of ATML1

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

Levels of ACR4 expression in ... pdf2-2 ... were not significantly different to those in wild-type plants

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

Levels of ACR4 expression in ... atml1-3 ... were not significantly different to those in wild-type plants

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

gso-1 gso2-1 double mutant ... We found no change in the expression of ... ACR4

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

we quantified the expression levels of ATML1 ... in acr4-2 mutant seedlings ... A slight but significant decrease in the expression levels ... was observed in acr4-2 mutants compared to wild-type seedlings

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

we quantified the expression levels of ... PDF2 in acr4-2 mutant seedlings. A slight but significant decrease in the expression levels ... was observed in acr4-2 mutants compared to wild-type seedlings

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

ale1-4 mutant seedlings ... We found no change in the expression of ATML1

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

ale1-4 mutant seedlings ... We found no change in the expression of ... ACR4

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

FLAG–PDF2 fusions were generated under the control of the PDF1 promoter ... PDF2 ... significantly down-regulated in PDF2 over-expressing plants

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

gso-1 gso2-1 double mutant ... We found no change in the expression of ... PDF2

San-Bento R, Farcot E, Galletti R, Creff A, Ingram G - Epidermal identity is maintained by cell-cell communication via a universally active feedback loop in Arabidopsis thaliana

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  • Gene expression

no significant transcript changes were detected for ... CAT2 ... in cls1

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

APX2 transcript levels were markedly increased in cls1

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

In cls1, transcript levels of BAP1 ... were strongly increased, suggesting singlet oxygen but not superoxide/hydrogen peroxide overproduction in cls1 plastids

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

transcript levels of AOX1 ... encoding alternative oxidase ... markedly increased in cls1 seedlings

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

CAT3 ... transcript levels were markedly increased in cls1

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

in cls1 ... the accumulation of complex IV, revealed by the anti-COXII antibody, was unaffected

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

transcript levels of ... NDB2 ... external NAD(P)H dehydrogenase ... markedly increased in cls1 seedlings

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

no significant transcript changes were detected for ... FER1 ... in cls1

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

We compared the accumulation of respiratory CI and CI/CIII in Col-0 and the cls1 mutant by blue native electrophoresis (Figure 6). In dodecyl maltoside–solubilized proteins of Col-0 and cls1 leaf membrane extracts (Figure 6A), both in-gel NADH/nitroblue tetrazolium (NBT) staining, which reveals NADH dehydrogenase activity, and immune detection using an antibody directed against the NAD9 subunit of the CI peripheral arm (Klodmann et al., 2010) showed that CI accumulation was lower in cls1 than in Col-0

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

CAT1 ... transcript levels were markedly increased in cls1

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

no significant transcript changes were detected for ... APX1 ... in cls1

Pineau B, Bourge M, Marion J, Mauve C, Gilard F, Maneta-Peyret L, Moreau P, Satiat-Jeunemaître B, Brown SC, De Paepe R, Danon A - The importance of cardiolipin synthase for mitochondrial ultrastructure, respiratory function, plant development, and stress responses in Arabidopsis

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... BIG

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... down-regulated were 102 genes implicated in transcriptional regulation (Dataset S5), including some previously implicated in regulation of leaf polarity ... YABBY5

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... IAA3

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... IAA2

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... PGP19

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... PGP4

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... down-regulated were 102 genes implicated in transcriptional regulation (Dataset S5), including some previously implicated in regulation of leaf polarity ... PHB

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... HAT2

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... IAA13

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... IAA14

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... IAA16

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... PIN4

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... ARF19

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... PID

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... PIN1

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... ARF4

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... AUX1

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... PIN7

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

35S:KAN1-GR ... most instances down-regulation was observed at both time points, with 43 genes down-regulated only at 160 minutes and 4 genes down-regulated only at 80 minutes. Of the down-regulated genes, 42 are known to have a role in auxin biology ... PIN3

Merelo P, Xie Y, Brand L, Ott F, Weigel D, Bowman JL, Heisler MG, Wenkel S - Genome-wide identification of KANADI1 target genes

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  • Gene expression

We also treated plants with the BIN2 inhibitor bikinin and found that phosphorylated HAT1 protein level decreased significantly compared with the mock control ... It is worth noting that although HAT1 appears to increase at 1 h after bikinin treatment, its relative level actually decreases after normalizing with the mock control in which HAT1 increased more at the same time point

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

We then performed transient gene expression with DWF4 promoter::luciferase (LUC) reporter gene in tobacco leaves. While expression of BES1 ... repressed the expression of DWF4pro:LUC gene expression ... the expression of the reporter gene was further reduced when both BES1 and HAT1 were co-expressed

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

We also treated plants with the BIN2 inhibitor bikinin ... BES1 was dephosphorylated and accumulated with bikinin treatment

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

The HAT1 protein level was reduced in plants grown in medium with BL

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

in bes1-D, in which the BES1 protein level is increased, the expression of HAT1 is reduced to 18% without exogenous BL and even more reduced with BL treatment

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

We then performed transient gene expression with DWF4 promoter::luciferase (LUC) reporter gene in tobacco leaves. While expression of ... HAT1 repressed the expression of DWF4pro:LUC gene expression, the expression of the reporter gene was further reduced when both BES1 and HAT1 were co-expressed

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

we performed quantitative reverse transcription polymerase chain reaction (qRT-PCR) experiments ... expression was decreased ... in wild-type (WT) seedlings after BL treatment ... expression of HAT3

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

we performed quantitative reverse transcription polymerase chain reaction (qRT-PCR) experiments (Figure S1). HAT1 expression was decreased to about 35% in wild-type (WT) seedlings after BL treatment

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

When using anti–GFP antibody to test the expression of HAT1–GFP in transgenic plants (Figure 2d), two HAT1–GFP bands were detected. To investigate whether HAT1 exists as phosphorylated and/or unphosphorylated forms in plants, HAT1–GFP was immunoprecipitated from HAT1–GFPOX transgenic plants and followed by calf intestinal phosphatase (CIP) treatment (Figures 4a, S7 and S8). The top two bands disappeared and a new lower band, probably the unphosphorylated form of HAT1, appeared after CIP treatment. The results indicated that HAT1 exists mostly as phosphorylated forms in plants and the unphosphorylated HAT1 is barely detectable under normal growth conditions

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

we performed quantitative reverse transcription polymerase chain reaction (qRT-PCR) experiments ... in bes1-D, in which the BES1 protein level is increased, the expression ... is reduced ... without exogenous BL and even more reduced with BL treatment ... expression of HAT3

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

We found that HAT1 protein increases in the liquid MS (Murashige and Skoog) medium without BL treatment (Figures 4c top panel and S9). In contrast, HAT1 protein clearly decreased in relation to the mock treatment in the presence of 1 µm BL ... BL induces accumulation of unphosphorylated BES1

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

When we treated plants with BL and MG132 together, the HAT1 protein level significantly increased and the unphosphorylated HAT1 also appeared

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

The HAT1 protein level was ... increased in plants grown in medium with BRZ

Zhang D, Ye H, Guo H, Johnson A, Zhang M, Lin H, Yin Y - Transcription factor HAT1 is phosphorylated by BIN2 kinase and mediates brassinosteroid repressed gene expression in Arabidopsis

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  • Gene expression

no apparent difference in the outer envelope marker Toc75 was seen between WT and abc1k1/pgr6 plants

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

VTE1 was detected in WT PGs but not in those of the abc1k1/pgr6 single mutant, comparable with the mutant lacking the PG kinase ABC1K3

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

To establish whether VTE1 was affected at the level of gene expression or post-transcriptionally, quantitative RT-PCR was performed on total RNA extracted from fresh WT and abc1k1/pgr6 leaves. A significant increase (2.5-fold) of VTE1 transcript was detected in abc1k1/pgr6 when compared with WT plants (Figure 6b), an observation similar to that for the abc1k3 single mutant

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

Equivalent protein quantities of chloroplast membrane subfractions (PG; envelopes, ENV; thylakoids, THY) were separated by SDS-PAGE, transferred to nitrocellulose and colored with Amido black ... ABC1K1 was detectable only in the PG fraction purified from WT plants

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

Equivalent protein quantities of chloroplast membrane subfractions (PG; envelopes, ENV; thylakoids, THY) were separated by SDS-PAGE, transferred to nitrocellulose and colored with Amido black ... VTE1 was detected in WT PGs

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

a reduction of chlorophyll binding protein LHCb2 was observed in abc1k1/pgr6 thylakoids

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

Concerning the other proteins investigated by immunoblotting (Figure 6a), the aFBN1a serum detected two distinct proteins with an apparent molecular mass just above 30 kDa, and likely to be identical with the two fibrillins FBN1a and FBN1b, as previously reported ... the lower band (FBN1b) was significantly reduced in abc1k1/pgr6 PGs when compared with WT plants

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

Concerning the other proteins investigated by immunoblotting (Figure 6a), the aFBN1a serum detected two distinct proteins with an apparent molecular mass just above 30 kDa, and likely to be identical with the two fibrillins FBN1a and FBN1b, as previously reported ... the upper band (FBN1a) was not detectable ... in abc1k1/pgr6 PGs when compared with WT plants

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

the fibrillin FBN2 was much less abundant in abc1k1/pgr6 PGs than in the WT

Martinis J, Glauser G, Valimareanu S, Stettler M, Zeeman SC, Yamamoto H, Shikanai T, Kessler F - ABC1K1/PGR6 kinase: a regulatory link between photosynthetic activity and chloroplast metabolism

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  • Gene expression

Both HA–TWD1 and HA–TWD1-Ct detected by anti-HA also partially overlapped with the ER marker binding Protein although at reduced molecular weight consistent with a previously published ER location

Bailly A, Wang B, Zwiewka M, Pollmann S, Schenck D, Lüthen H, Schulz A, Friml J, Geisler M - Expression of TWISTED DWARF1 lacking its in-plane membrane anchor leads to increased cell elongation and hypermorphic growth

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  • Gene expression

immunodetection of HA–TWD1-Ct that lacked the C-terminal membrane anchor resulted in a stronger but similar plasma membrane pattern to the wild type

Bailly A, Wang B, Zwiewka M, Pollmann S, Schenck D, Lüthen H, Schulz A, Friml J, Geisler M - Expression of TWISTED DWARF1 lacking its in-plane membrane anchor leads to increased cell elongation and hypermorphic growth

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  • Gene expression

the presence of both TWD1-OX at the PM was verified by western blot analysis of sucrose gradient fractions using anti-TWD1 and anti-HA and revealed that HA–TWD1 and HA–TWD1-Ct overlap with the PM markers plasma membrane-intrinsic protein and H+-ATPase

Bailly A, Wang B, Zwiewka M, Pollmann S, Schenck D, Lüthen H, Schulz A, Friml J, Geisler M - Expression of TWISTED DWARF1 lacking its in-plane membrane anchor leads to increased cell elongation and hypermorphic growth

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  • Gene expression

In the absence of treatment ... transcripts were hardly detectable but ... with nitric oxide for 24h, the up-regulation of ... SAG13 was significantly stronger in nes1-2

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

To examine the expression of NES1, transgenic plants carrying a native NES1 promoter–GUS gene fusion were first prepared ... on the seventh day, GUS was more widely expressed throughout the seedling

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

To examine the expression of NES1 further, quantitative real-time RT-PCR was used ... the relative transcript levels were slightly higher in the cotyledons

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

In the ein2 mutant, transcription of ORE1 declined significantly

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

In the absence of treatment ... transcripts were hardly detectable but ... with nitric oxide for 24h, the up-regulation of SAG12 ... was significantly stronger in nes1-2

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

in ore1, nitric oxide treatment changed the levels of ... CAB2 to a lesser extent than in the wild type

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

a translational fusion was made between NES1 and GFP, driven by the NES1 promoter (pNES1::NES1::GFP). As a control, GFP alone driven by the NES1 promoter (pNES1::GFP ... both were strongly up-regulated by treatment with nitroprusside, with no detectable signal in the wild-type control

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

to extend the analysis of expression to the protein level, a translational fusion was made between NES1 and GFP, driven by the NES1 promoter (pNES1::NES1::GFP). As a control, GFP alone driven by the NES1 promoter (pNES1::GFP) was used. Based on probing a western blot with anti-GFP antibody, the constructs were expressed in untreated seedlings

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

To examine the expression of NES1, transgenic plants carrying a native NES1 promoter–GUS gene fusion were first prepared. On the first day after germination, GUS activity was mainly detected in cotyledons

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

To examine the expression of NES1, transgenic plants carrying a native NES1 promoter–GUS gene fusion were first prepared ... on the seventh day ... concentrated in the vasculature

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

ein2 essentially had a limited background level of the ORE1 message in cotyledons. However this was not increased by nitric oxide treatment (Fig. 4G), meaning that the ORE1 induction relied on EIN2

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

When 5-day-old cotyledons were bisected into apical and basal halves, the latter had a slightly higher level of NES1 basic expression. However, after a 24h treatment with 20 μM nitroprusside, the expression was raised to essentially the same level in both regions

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

in ore1, nitric oxide treatment changed the levels of ... SAG13 ... to a lesser extent than in the wild type

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

in cue1, the ORE1 transcript level was increased even in the absence of nitroprusside treatment

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

To examine the expression of NES1 further, quantitative real-time RT-PCR was used, which allowed the detection of the native message. NES1 was expressed in all organs

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

When 5-day-old seedlings were treated with 20 μM nitroprusside, the message level of NES1 in the cotyledons rose linearly within 12h and then remained steady up to at least 72h

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

To examine the expression of NES1, transgenic plants carrying a native NES1 promoter–GUS gene fusion were first prepared ... The GUS expression was strongly increased when 5-day-old seedlings were treated with 20 μM nitroprusside for 2 d

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

The NES1 transcript level was slightly higher in the ein2 mutant than that in the ore1 mutant and the wild type

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

with nitric oxide for 24h ... in nes1-2 ... down-regulation of CAB2 was apparent ... even more

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

with nitric oxide for 24h ... down-regulation of CAB2 was apparent in the wild type

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

NES1 expression indistinguishable in the ore1 mutant and the wild type

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

cue1 ein2, the level of ORE1 was low and not increased by treatment

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

ORE1 expression was indistinguishable in both the nes1-2 mutant and the wild type

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

in ore1, nitric oxide treatment changed the levels of SAG12 ... to a lesser extent than in the wild type

Du J, Li M, Kong D, Wang L, Lv Q, Wang J, Bao F, Gong Q, Xia J, He Y - Nitric oxide induces cotyledon senescence involving co-operation of the NES1/MAD1 and EIN2-associated ORE1 signalling pathways in Arabidopsis

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  • Gene expression

We analyzed public transcriptome data and found that SHYG expression increased 4.3-fold in rosettes of fully submerged Arabidopsis plants within 7 h (Lee et al., 2011), indicating that it might act as a transcriptional regulator in waterlogging- or submergence-controlled processes

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

We also tested SHYG expression by quantitative real-time PCR (qRT-PCR) and, like in the GUS studies, did not detect a major difference between the abaxial and adaxial petiole regions

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Expression of ... ACO5 ... increased upon waterlogging in the proximal petiole segments of Col-0 but remained largely unaffected in Cvi-0, in accordance with its weak growth response

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

EXPA8 ... Upon root flooding ... in abaxial petiole cells ... remained low in shyg-2

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Upon root flooding ... EXPA11 expression in abaxial petiole cells ... remained low in shyg-2

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Upon root flooding ... in shyg-2 ... EXPA11 remained largely unaffected in adaxial cells

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Upon root flooding ... in the 35S:SHYG overexpressor plants ... EXPA11 remained largely unaffected in adaxial cells

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

EXPA11 ... expression was considerably higher in the abaxial than adaxial petiole regions

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Expression of SHYG ... increased upon waterlogging in the proximal petiole segments of Col-0 but remained largely unaffected in Cvi-0, in accordance with its weak growth response

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

ACO5 mRNA was also more abundant in Arabidopsis 35S:SHYG overexpressors than in Col-0 wild-type plants

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Upon root flooding, EXPA11 expression increased in shoot-proximal abaxial petiole segments of wild-type plants, as expected

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

To further test the SHYG-ACO5 regulatory cascade, we next performed transactivation assays using Arabidopsis mesophyll cell protoplasts cotransfected with a 35S:SHYG effector plasmid and a reporter construct (pACO5-fLUC) carrying a fusion between the ACO5 promoter (1.87 kb) and firefly luciferase (fLUC) as a reporter for transcriptional activation. As shown in Figure 1D, SHYG strongly transactivated ACO5 expression 8 and 16 h after transfection

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Upon root flooding ... EXPA11 expression in abaxial petiole cells increased to higher levels in the 35S:SHYG overexpressor plants

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

Expression of ... EXPA8 ... increased upon waterlogging in the proximal petiole segments of Col-0 but remained largely unaffected in Cvi-0, in accordance with its weak growth response

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

First, to identify genes downstream of SHYG, we expressed it from an estradiol-inducible promoter (Zuo et al., 2000) and performed expression profiling 5 h after β-estradiol treatment, using 14-d-old transgenic seedlings (SHYG-IOE). Only few genes robustly increased upon SHYG induction, including ACO5 (4.3-fold), encoding an uncharacterized enzyme involved in ET biosynthesis (see Supplemental Table 1 online). ACO5 transcript abundance and ACO protein level increased upon SHYG induction in a time-dependent manner (Figures 1A and 1B)

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

SHYG fused to green fluorescent protein (GFP) accumulated in nuclei of transformed Arabidopsis plants (see Supplemental Figure 2 online), consistent with its function as a TF

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

EXPA8 expression was considerably higher in the abaxial than adaxial petiole regions

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

EXPA8 ... Upon root flooding ... expression increased in shoot-proximal abaxial petiole segments of wild-type plants

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

We ... did not detect a major difference between the abaxial and adaxial petiole regions ... ACO5

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

ACO5 mRNA ... showed reduced levels in two homozygous T-DNA insertion lines, shyg-1 and shyg-2

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

EXPA8 ... Upon root flooding ... expression in abaxial petiole cells increased to higher levels in the 35S:SHYG overexpressor plants

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

To test whether enhanced SHYG expression is due to promoter activation, we tested waterlogging-dependent GUS activity in SHYG promoter-GUS fusion (ProSHYG:GUS) lines. GUS staining in petioles and the rosette center was weak in nonstressed plants. However, GUS activity was strongly elevated after 8 h of waterlogging (Figures 6A and 6B), when petiole angle was also increased in these lines (Figure 6A; see Supplemental Figure 7 online); this response was further enhanced by simultaneous application of ACC but diminished by AIB (Figures 6A and 6B; see Supplemental Figure 7 online), indicating a positive feedback loop connecting SHYG expression with ET level, most likely via ACO5

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

We also tested SHYG expression in the proximal segment of the leaf petiole using the ProSHYG:GUS lines. As seen in Supplemental Figure 6A online, β-glucuronidase (GUS) staining was low before waterlogging but was strongly enhanced after 8 h of waterlogging. However, no major difference in staining intensity between the abaxial and adaxial petiole regions was observed

Rauf M, Arif M, Fisahn J, Xue GP, Balazadeh S, Mueller-Roeber B - NAC transcription factor speedy hyponastic growth regulates flooding-induced leaf movement in Arabidopsis

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  • Gene expression

PR5 expression ... reduced in pad4 paps1 double mutants compared with paps1 plants

Trost G, Vi SL, Czesnick H, Lange P, Holton N, Giavalisco P, Zipfel C, Kappel C, Lenhard M - Arabidopsis poly(A) polymerase PAPS1 limits founder-cell recruitment to organ primordia and suppresses the salicylic acid-independent immune response downstream of EDS1/PAD4

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  • Gene expression

PR2 ... expression ... reduced in pad4 paps1 double mutants compared with paps1 plants

Trost G, Vi SL, Czesnick H, Lange P, Holton N, Giavalisco P, Zipfel C, Kappel C, Lenhard M - Arabidopsis poly(A) polymerase PAPS1 limits founder-cell recruitment to organ primordia and suppresses the salicylic acid-independent immune response downstream of EDS1/PAD4

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  • Gene expression

in pad4 paps1 double mutants ... for SID2 the suppression ... was not significant

Trost G, Vi SL, Czesnick H, Lange P, Holton N, Giavalisco P, Zipfel C, Kappel C, Lenhard M - Arabidopsis poly(A) polymerase PAPS1 limits founder-cell recruitment to organ primordia and suppresses the salicylic acid-independent immune response downstream of EDS1/PAD4

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  • Gene expression

in paps1-1 mutants expressing either the PAPS4 coding sequence or a fusion of the N-terminal domain of PAPS4 and the C-terminal domain of PAPS1 under the control of the pPAPS1 promoter ... PR1 ... still overexpressed in pPAPS1::PAPS4 expressing paps1-1 mutants compared with wild-type ... but their expression was rescued to wild-type levels in the pPAPS1::PAPS4N-PAPS1C expressing paps1-1 mutants

Trost G, Vi SL, Czesnick H, Lange P, Holton N, Giavalisco P, Zipfel C, Kappel C, Lenhard M - Arabidopsis poly(A) polymerase PAPS1 limits founder-cell recruitment to organ primordia and suppresses the salicylic acid-independent immune response downstream of EDS1/PAD4

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  • Gene expression

PR1 ... expression ... reduced in pad4 paps1 double mutants compared with paps1 plants

Trost G, Vi SL, Czesnick H, Lange P, Holton N, Giavalisco P, Zipfel C, Kappel C, Lenhard M - Arabidopsis poly(A) polymerase PAPS1 limits founder-cell recruitment to organ primordia and suppresses the salicylic acid-independent immune response downstream of EDS1/PAD4

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  • Gene expression

in paps1-1 mutants expressing either the PAPS4 coding sequence or a fusion of the N-terminal domain of PAPS4 and the C-terminal domain of PAPS1 under the control of the pPAPS1 promoter ... PR2 ... still overexpressed in pPAPS1::PAPS4 expressing paps1-1 mutants compared with wild-type, but their expression was rescued to wild-type levels in the pPAPS1::PAPS4N-PAPS1C expressing paps1-1 mutants

Trost G, Vi SL, Czesnick H, Lange P, Holton N, Giavalisco P, Zipfel C, Kappel C, Lenhard M - Arabidopsis poly(A) polymerase PAPS1 limits founder-cell recruitment to organ primordia and suppresses the salicylic acid-independent immune response downstream of EDS1/PAD4

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  • Gene expression

Genevestigator toolbox ... In response to DNA stress (genotoxic stress and UV-B light treatment), two SMR genes responded strongly, namely ... SMR5

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

Genevestigator toolbox ... In response to DNA stress (genotoxic stress and UV-B light treatment), two SMR genes responded strongly, namely, SMR4

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

Genevestigator toolbox ... SMR5 responding to most diverse types of abiotic stresses

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

In addition to HU and bleomycin, we confirmed the transcriptional activation of ... SMR7 by γ-irradiation

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

SMR5 ... induced in the proliferating leaf upon HU and bleomycin treatment

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

To identify novel key signaling components that contribute to cell cycle checkpoint activation, we compared bleomycin-induced genes to those induced by HU treatment (Cools et al., 2010) and γ-radiation (Culligan et al., 2006; Yoshiyama et al., 2009). Twenty-two genes were upregulated in all DNA stress experiments and can be considered as transcriptional hallmarks of the DNA damage response, regardless of the type of DNA stress ... including ... RAS-ASSOCIATED WITH DIABETES PROTEIN51

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

SMR5 transcript levels appeared to be stable ... in the ... apx1 cat2 double mutant

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

To identify novel key signaling components that contribute to cell cycle checkpoint activation, we compared bleomycin-induced genes to those induced by HU treatment (Cools et al., 2010) and γ-radiation (Culligan et al., 2006; Yoshiyama et al., 2009). Twenty-two genes were upregulated in all DNA stress experiments and can be considered as transcriptional hallmarks of the DNA damage response, regardless of the type of DNA stress ... including ... one member of the SIM/SMR gene family, SMR5

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

SMR5 induction under high light was confirmed by RT-PCR

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

introducing the SMR5 ... ß-glucuronidase (GUS) reporter lines into ... sog1-1 mutant ... the transcriptional activation of SMR5 ... by bleomycin depended on ... SOG1 ... the same pattern was observed for HU

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

To identify novel key signaling components that contribute to cell cycle checkpoint activation, we compared bleomycin-induced genes to those induced by HU treatment (Cools et al., 2010) and γ-radiation (Culligan et al., 2006; Yoshiyama et al., 2009). Twenty-two genes were upregulated in all DNA stress experiments and can be considered as transcriptional hallmarks of the DNA damage response, regardless of the type of DNA stress ... including POLY(ADP-RIBOSE) POLYMERASE2 (PARP2)

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

In addition to HU and bleomycin, we confirmed the transcriptional activation of ... SMR5 ... by γ-irradiation

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

In addition to HU and bleomycin, we confirmed the transcriptional activation of SMR4 ... by γ-irradiation

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

As an independent strategy to induce ROS, SMR5 ... GUS reporter lines were transferred from control (70 to 80 µmol m–2 s–1) to high light (300 to 400 µmol m–2 s–1) conditions ... SMR5 promoter activity was strongly stimulated in both the shoot apex and leaf tissue

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

As an independent strategy to induce ROS ... SMR7 GUS reporter lines were transferred from control (70 to 80 µmol m–2 s–1) to high light (300 to 400 µmol m–2 s–1) conditions for 2 d ... PSMR7:GUS plants displayed an increase in GUS activity being mainly restricted to the shoot apex

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

SMR5 transcript levels appeared to be stable ... in the single apx1 ... mutant

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

introducing the ... SMR7 ß-glucuronidase (GUS) reporter lines into the ... sog1-1 mutant ... the transcriptional activation of ... SMR7 by bleomycin depended on ... SOG1 ... the same pattern was observed for HU

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

SMR7 ... induced in the proliferating leaf upon HU and bleomycin treatment

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

introducing the SMR5 ... ß-glucuronidase (GUS) reporter lines into the atr-2, atm-1 ... the transcriptional activation of SMR5 ... by bleomycin depended on ATM ... the same pattern was observed for HU

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

SMR7 expression levels were clearly induced in the single apx1 ... mutant

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

To identify novel key signaling components that contribute to cell cycle checkpoint activation, we compared bleomycin-induced genes to those induced by HU treatment (Cools et al., 2010) and γ-radiation (Culligan et al., 2006; Yoshiyama et al., 2009). Twenty-two genes were upregulated in all DNA stress experiments and can be considered as transcriptional hallmarks of the DNA damage response, regardless of the type of DNA stress ... including ... BREAST CANCER SUSCEPTIBILITY1 (BRCA1)

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

introducing the ... SMR7 ß-glucuronidase (GUS) reporter lines into the atr-2, atm-1 ... the transcriptional activation of ... SMR7 by bleomycin depended on ATM ... the same pattern was observed for HU

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

SMR7 expression levels were clearly induced in the ... apx1 cat2 double mutant

Yi D, Alvim Kamei CL, Cools T, Vanderauwera S, Takahashi N, Okushima Y, Eekhout T, Yoshiyama KO, Larkin J, Van den Daele H, Conklin P, Britt A, Umeda M, De Veylder L - The Arabidopsis SIAMESE-RELATED cyclin-dependent kinase inhibitors SMR5 and SMR7 regulate the DNA damage checkpoint in response to reactive oxygen species

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  • Gene expression

the transcript levels of ... JAZ8 were higher in senescent leaves than in normal leaves

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

Similarly to the wild type, WRKY57 transcript levels in ProWRKY57:Myc-WRKY57 were upregulated after MeJA treatment (Supplemental Figure 5). By contrast, WRKY57 protein levels decreased with the treatment of MeJA

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

the transcript levels of SEN4 ... in the wrky57-1 mutant were not affected by treatment with MeJA+IAA compared with MeJA

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

JAZ4 ... overexpression plants ... SAG12 ... downregulated

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

The degradation of WRKY57 was clearly attenuated by the 26S proteasome inhibitor MG132

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

SAG18 ... After treatment with MeJA ... transcript levels were upregulated significantly in the wrky57 mutants compared with the wild type and the overexpression line

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

the transcript levels of JAZ4 ... were higher in senescent leaves than in normal leaves

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

We first examined the transcript levels of WRKY57 in response to auxin treatment and found that WRKY57 was dramatically induced by auxin treatment

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

IAA29 ... WRKY57 and its partners colocalize ... in plant cell nuclei

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

SAG12 ... After treatment with MeJA ... transcript levels were upregulated significantly in the wrky57 mutants compared with the wild type and the overexpression line

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

SEN4 ... After treatment with MeJA ... transcript levels were upregulated significantly in the wrky57 mutants compared with the wild type and the overexpression line

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

the transcript levels of SEN4 ... were higher in IAA29 overexpression plants than in the wild type

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

JAZ8 overexpression plants ... SAG12 ... downregulated

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

the transcript levels of ... SAG12 were significantly downregulated in leaves treated with MeJA+IAA compared with those treated with MeJA

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

JAZ4 ... WRKY57 and its partners colocalize ... in plant cell nuclei

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

Although WRKY57 transcripts are induced by JA, WRKY57 functions as a negative regulator in JA-induced senescence. However, because mRNA levels sometimes do not reflect protein levels, it was necessary to determine the protein levels of WRKY57. For this purpose, WRKY57 cDNA fused with a Myc tag and driven by a 2.5-kb WRKY57 promoter was transformed into the wrky57-1 mutant. The expression of the Myc tag was used to monitor the protein levels of WRKY57 (by protein gel blot analysis). As shown in Figure 8A, WRKY57 protein levels in ProWRKY57: Myc-WRKY57 were not induced by water (mock) (Figure 8A). We then checked the response of WRKY57 to auxin at both the mRNA and protein levels in ProWRKY57:Myc-WRKY57, revealing that either mRNA or protein levels of WRKY57 were induced by auxin treatment

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

JAZ4 ... overexpression plants ... SEN4 ... downregulated

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

SEN4 ... upregulated in the ... jaz8

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

SAG20 ... After treatment with MeJA ... transcript levels were upregulated significantly in the wrky57 mutants compared with the wild type and the overexpression line

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

transcript levels of IAA29 ... were higher in senescent leaves than in normal leaves

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

the transcript levels of SEN4 ... were significantly downregulated in leaves treated with MeJA+IAA compared with those treated with MeJA

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

the transcript levels of ... SAG12 in the wrky57-1 mutant were not affected by treatment with MeJA+IAA compared with MeJA

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

the transcript levels of ... SAG12 were higher in IAA29 overexpression plants than in the wild type

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

JAZ8 ... WRKY57 and its partners colocalize ... in plant cell nuclei

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

WRKY57 and its partners colocalize ... in plant cell nuclei

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

JAZ8 overexpression plants ... SEN4 ... downregulated

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

SAG12 ... upregulated in the jaz4

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

SEN4 ... upregulated in the jaz4

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

We also determined the protein levels of WRKY57 in coi1 mutants, and the results demonstrated that the protein degradation is partially dependent on COI1

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

To determine whether WRKY57 transcription is associated with phytohormones, we checked the transcript levels of WRKY57 in response to exogenous phytohormone treatments, revealing that JA significantly induces WRKY57

Jiang Y, Liang G, Yang S, Yu D - Arabidopsis WRKY57 functions as a node of convergence for jasmonic acid- and auxin-mediated signaling in jasmonic acid-induced leaf senescence

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... GRF3 ... induced significantly from 2 h onwards

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

developing first leaves of AN3-GR and wild-type plants were subjected to transcript profiling using Affymetrix ATH1 microarrays after transfer at 8 DAS to DEX-containing medium for 8 h ... four members of the GRF family were upregulated ... GRF5

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

Transcription factors with higher expression in ... 35S:GRF5 leaves encoded the basic helix-loop-helix transcriptional regulator HECATE1 (HEC1)

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

COL5 ... downregulated in brm1 shoots

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

ARR4 ... was found to be ... downregulated in 35S:GRF5 plants

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

developing first leaves of AN3-GR and wild-type plants were subjected to transcript profiling using Affymetrix ATH1 microarrays after transfer at 8 DAS to DEX-containing medium for 8 h ... four members of the GRF family were upregulated ... GRF8

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

qRT-PCR expression levels of ... GRF6 were found to be significantly reduced in 8-d-old brm3 shoots grown in long-day conditions compared with wild-type seedlings

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

Transcription factors with higher expression in ... AN3-GR ... leaves encoded the ... HOMEOBOX33 (HB33)

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

GRF3 ... not differentially expressed when brm was mutated

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

CRF2 ... downregulated in brm1 shoots

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

ARR4 ... not differentially expressed when brm was mutated

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... transiently significantly upregulated ... after transfer to DEX, HEC1 after 2, 4, and 6 h

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

Transcription factors with higher expression in ... 35S:GRF5 leaves encoded ... HOMEOBOX33 (HB33)

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

ARR4 is of interest because it was found to be upregulated in the an3 mutant

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... The transcript levels of GRF7 ... in general low and variable in the first leaves and not significantly affected by DEX treatment

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

The CYCB1;1:DB-GUS construct allows for quantitative analysis of mitotic activity in developing plants. AN3-GR/CYCB1;1:DB-GUS plants were grown for 9 DAS and subsequently transferred to medium supplemented with 10 µM DEX for 24 h, after which the first leaves were analyzed for GUS staining. At this stage, mitotic activity is only present in the basal region in CYCB1;1:DB-GUS leaves (Figures 1D and 1E). Induction of AN3 activity extended the region of GUS staining measured along the length of the leaf while total leaf length was unaffected by 24-h DEX treatment (Figures 1D and 1E). In addition, the GUS intensity in the stained region was increased in AN3-GR/CYCB1;1:DB-GUS leaves compared with untreated and CYCB1;1:DB-GUS leaves (Figures 1E and 1F), indicating a function for AN3 in both the duration and the rate of cell proliferation

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... transiently significantly upregulated ... after transfer to DEX ... CONSTANS-LIKE5 (COL5) after 4 and 6 h

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

when brm was mutated ... HB33, in contrast with our expectations, was upregulated

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

in 12-d-old an3 rosettes ... GRF3 expression was unchanged compared with the wild type

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

Transcription of AN3 was also significantly reduced in brm1 rosettes grown for 22 d in short-day conditions

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... The transcript levels of ... GRF8 ... in general low and variable in the first leaves and not significantly affected by DEX treatment

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

Transcription factors with higher expression in ... AN3-GR ... leaves encoded the basic helix-loop-helix transcriptional regulator HECATE1 (HEC1)

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

HEC1 ... not differentially expressed when brm was mutated

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... transiently significantly upregulated ... after transfer to DEX ... HB33 after 6 h

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

qRT-PCR expression levels of AN3 ... were found to be significantly reduced in 8-d-old brm3 shoots grown in long-day conditions compared with wild-type seedlings

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... ARR4 transcript levels were significantly lower in AN3-GR leaves 4 and 6 h after induction compared with the wild type (Figure 2B), confirming its rapid repression by AN3 in developing leaves

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... CYTOKININ RESPONSE FACTOR2 (CRF2) was transiently significantly upregulated 1 h after transfer to DEX

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

developing first leaves of AN3-GR and wild-type plants were subjected to transcript profiling using Affymetrix ATH1 microarrays after transfer at 8 DAS to DEX-containing medium for 8 h ... four members of the GRF family were upregulated: GRF3

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... GRF5 ... induced significantly from 2 h onwards

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

developing first leaves of AN3-GR and wild-type plants were subjected to transcript profiling using Affymetrix ATH1 microarrays after transfer at 8 DAS to DEX-containing medium for 8 h ... four members of the GRF family were upregulated ... GRF6

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

GRF5 ... expression levels were downregulated in 12-d-old an3 rosettes

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

GRF6 expression levels were downregulated in 12-d-old an3 rosettes

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

To analyze this in more detail, a time-course experiment was conducted, in which RNA levels were quantified with quantitative RT-PCR (qRT-PCR) at 1, 2, 4, and 6 h after transfer of AN3-GR and wild-type plants to DEX-containing medium ... GRF6 ... induced significantly from 2 h onwards

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

qRT-PCR expression levels of ... GRF5 ... were found to be significantly reduced in 8-d-old brm3 shoots grown in long-day conditions compared with wild-type seedlings

Vercruyssen L, Verkest A, Gonzalez N, Heyndrickx KS, Eeckhout D, Han SK, Jégu T, Archacki R, Van Leene J, Andriankaja M, De Bodt S, Abeel T, Coppens F, Dhondt S, De Milde L, Vermeersch M, Maleux K, Gevaert K, Jerzmanowski A, Benhamed M, Wagner D, Vandepoele K, De Jaeger G, Inzé D. - ANGUSTIFOLIA3 binds to SWI/SNF chromatin remodeling complexes to regulate transcription during Arabidopsis leaf development

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  • Gene expression

under iron-deficient conditions, the transcriptional level of ... FRO2 was reduced in the ... med25-2 mutant

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

we found that the induction of ... bHLH39 under iron-deficient conditions was unaffected

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

under iron-deficient conditions, the transcriptional level of IRT1 ... was reduced in the ... med25-2 mutant

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

FIT was significantly downregulated in yid1 ... under iron-deficient conditions

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

YID1/MED16 and MED25 were co-localized with the 4',6-diamidino-2-phenylindole (DAPI) signal from the nuclei

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

YID1/MED16 and MED25 were co-localized with the 4',6-diamidino-2-phenylindole (DAPI) signal from the nuclei

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

in yid1/med16-2 ... Under conditions of 50 µm Fe, we found no significant difference in IRT1 expression between mutants and wild-type plants under iron-sufficient conditions

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

under iron-deficient conditions, the transcriptional level of ... FRO2 was reduced in the yid1

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

we found that the induction of bHLH38 ... under iron-deficient conditions was unaffected

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

Under conditions of 50 µm Fe ... FRO2 expression in the yid1 mutant was slightly lower compared with that in the wild type

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

FIT was significantly downregulated in ... med25 ... under iron-deficient conditions

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

under iron-deficient conditions, the transcriptional level of IRT1 ... was reduced in the yid1

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

YID1/MED16 was downregulated in the med25 mutant under iron-sufficient and iron-deficient conditions

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

Quantitative RT-PCR analysis showed that YID1/MED16 was expressed ubiquitously in different tissues

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

in ... med25-2 mutants. Under conditions of 50 µm Fe, we found no significant difference in IRT1 expression between mutants and wild-type plants under iron-sufficient conditions

Yang Y, Ou B, Zhang J, Si W, Gu H, Qin G, Qu LJ - The Arabidopsis Mediator subunit MED16 regulates iron homeostasis by associating with EIN3/EIL1 through subunit MED25

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  • Gene expression

IAA2 was upregulated in kan1 and further upregulated in kan1 kan2 mutant seedlings

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

IAA11 ... showed reproducible downregulation by KAN1-GR

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... PIN4

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... At3g08570

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... At5g47800

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

A third technique, qRT-PCR, on independent samples confirmed statistically significant upregulation of NPY1 by GR-REV in the presence and absence of CHX, indicating that NPY1 is likely a direct target of REV activation

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... IAA18

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... At5g47800

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... IAA11

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

qRT-PCR on an independent set of samples showed upregulation of WAG1 by GR-REV both in the presence and absence of CHX

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

NPY5 transcript levels were decreased by KAN1-GR in both microarray and RNA-seq experiments but were unchanged in the qRT-PCR experiments

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... ARF3

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... LAX3

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... LAX3

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... YUCCA5

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... LAX1

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

IAA18 showed reproducible downregulation by KAN1-GR

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

NPY3 transcripts showed statistically significant downregulation in response to KAN1-GR in all three experiments: microarray, qRT-PCR, and RNA-seq ... but NPY3 levels did not respond to KAN1-GR in the presence of CHX, indicating that KAN1-GR downregulation of NPY3 is likely an indirect effect

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

qRT-PCR on an independent set of samples showed ... downregulation of WAG2 by KAN1-GR but only in the absence of CHX

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

At3g08570 ... upregulated by KAN1-GR

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... At1g50280

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... LAX2

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... NPY5

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... At3g19850

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... TAA1

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... LAX1

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

We also reexamined the expression of the Aux/IAA transcriptional regulator IAA2 by RT-PCR since this gene was identified as a potential KAN target in the original microarray experiment based on a 4-h DEX treatment (Supplemental Data Set 1) and since this gene showed high statistical significance for KAN1-GR downregulation in the RNA-seq experiment. We found that IAA2 was dramatically repressed by DEX in the presence of CHX, suggesting that it is a direct target of KAN-GR

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... NPY3

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... ENP1/NPY1

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

NPY1 showed downregulation by KAN1-GR in the microarray experiment, but this was not repeated in either the RNA-SEQ or qRT-PCR experiments

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by KAN1-GR ... of ... At3g15570

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

IAA2 was upregulated in kan1 ... mutant seedlings

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

ARF3/ETTIN showed reproducible upregulation by GR-REV

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

we found evidence for regulation by ... GR-REV of ... At1g52770

Huang T, Harrar Y, Lin C, Reinhart B, Newell NR, Talavera-Rauh F, Hokin SA, Barton MK, Kerstetter RA - Arabidopsis KANADI1 acts as a transcriptional repressor by interacting with a specific cis-element and regulates auxin biosynthesis, transport, and signaling in opposition to HD-ZIPIII factors

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  • Gene expression

API2pro:GUS ... constructs were ubiquitously expressed, with particularly intense GUS staining in young and actively proliferating tissues, such as those of developing leaves

Casanova-Sáez R, Candela H, Micol JL - Combined haploinsufficiency and purifying selection drive retention of RPL36a paralogs in Arabidopsis

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  • Gene expression

RPL36aApro:GUS ... constructs were ubiquitously expressed, with particularly intense GUS staining in young and actively proliferating tissues, such as those of developing leaves

Casanova-Sáez R, Candela H, Micol JL - Combined haploinsufficiency and purifying selection drive retention of RPL36a paralogs in Arabidopsis

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  • Gene expression

The relative expression of nuclear genes encoding subunits of LHCII trimers ... LHCB3 ... was found to be ~0.5-fold decreased in anu10-1 compared with Ler

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

To determine the expression pattern of ANU10 in wild-type plants, an ANU10 pro :GUS reporter transgene was constructed ... The GUS signal was broad in seedlings collected 3 das (Fig. 4A), being particularly intense in incipient leaves

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

transcript levels of the plastid-encoded ... rbcL ... were not significantly different from those of Ler ... anu10-1

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

To determine the expression pattern of ANU10 in wild-type plants, an ANU10 pro :GUS reporter transgene was constructed ... The spatio-temporal expression analysis suggests that ANU10 is expressed in all plant organs and that its expression is particularly important in developing organs

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

transcript levels of the plastid-encoded ... atpB ... were not significantly different from those of Ler ... anu10-1

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

the expression level of the nucleus-encoded ORESARA1 (ORE1) transcription factor, a senescence marker that has recently been reported to be a key regulator of the senescence response (Kim et al., 2009; Balazadeh et al., 2010), was also monitored. ORE1 was expressed at similar levels in anu10-1 mutants and wild-type rosettes (Fig. 9A), suggesting that premature senescence is not the cause of the observed phenotype

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

The relative expression of nuclear genes encoding subunits of LHCII trimers ... LHCB1 ... was found to be ~0.5-fold decreased in anu10-1 compared with Ler

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

To determine the expression pattern of ANU10 in wild-type plants, an ANU10 pro :GUS reporter transgene was constructed ... In plants collected 13 das, GUS activity was detected in ... cotyledons

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

To determine the expression pattern of ANU10 in wild-type plants, an ANU10 pro :GUS reporter transgene was constructed ... In plants collected 13 das, GUS activity was detected in ... leaves

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

The relative expression of nuclear genes encoding subunits of LHCII trimers ... LHCB2 ... was found to be ~0.5-fold decreased in anu10-1 compared with Ler

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

transcript levels of the plastid-encoded ... rrn23 ... were not significantly different from those of Ler ... anu10-1

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

To determine the suborganellar localization of the ANU10 protein, stromal and thylakoidal fractions were isolated from the chloroplasts of anu10-1 35S pro :ANU10:GFP transgenic plants. The presence of the ANU10:GFP fusion protein in each fraction was tested by western blotting using an anti-GFP antibody. The fusion protein was specifically detected in thylakoids, but not in the soluble stromal fraction (Fig. 5G), indicating that ANU10 is associated with thylakoidal membranes

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

The expression of HEMA1 was significantly although mildly reduced in anu10-1

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

the expression levels of LHCB5 were not significantly different in anu10-1 and Ler

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

transcript levels of the plastid-encoded accD ... were not significantly different from those of Ler ... anu10-1

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

A reduction only of rrn16 expression in anu10-1 mutants was observed

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

transcript levels of the plastid-encoded ... psbA ... were not significantly different from those of Ler ... anu10-1

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

Because LHCII trimers are thought to participate in thylakoid stacking, blue native PAGE was used to study the levels of trimeric LHCII complexes in isolated thylakoids from 16 das plants. LHCII trimers migrated slightly more slowly and their levels were reduced in thylakoids of anu10-1 compared with those of Ler (Fig. 8A, lanes 1 and 2). The anu10-2 and anu10-3 mutants showed a similar reduction in the amount and mobility of LHCII trimers relative to the Col-0 wild type

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

To determine experimentally the subcellular localization of the ANU10 protein, an in-frame translational fusion of GFP to the C-terminal end of ANU10 was made. Transgenic anu10-1 plants expressing 35S pro :ANU10:GFP were used to visualize the GFP signal by confocal laser scanning microscopy. The GFP signal was specifically detected in chloroplasts from four independent lines carrying the 35S pro :ANU10:GFP transgene (Fig. 5A–F). To exclude that the observed localization pattern represents an artefact due to overexpression of the ANU10:GFP fusion protein, the same translational fusion was also placed under the control of the endogenous ANU10 promoter (ANU10 pro :ANU10:GFP). An identical distribution of GFP signal was observed in anu10-1 plants expressing the ANU10 pro :ANU10:GFP transgene (Supplementary Fig. S5 at JXB online), demonstrating that the promoter chosen does not affect the subcellular localization of the fusion protein

Casanova-Sáez R, Mateo-Bonmatí E, Kangasjärvi S, Candela H, Micol JL - Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development

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  • Gene expression

we performed real-time PCR analysis using cDNA samples prepared from ... explants that were cultured on SIM at various temperatures after pre-culture on CIM at 19°C ... rid3 mutation elevated ... CUC1

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

we performed real-time PCR analysis using cDNA samples prepared from ... explants that were cultured on SIM at various temperatures after pre-culture on CIM at 19°C ... rid2 mutation ... elevated ... STM ... with the maximum effect occurring at 25°C

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

we performed real-time PCR analysis using cDNA samples prepared from ... explants that were cultured on SIM at various temperatures after pre-culture on CIM at 19°C ... rgd3 mutation did not elevate but suppress CUC1 ... expressions

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

we performed real-time PCR analysis using cDNA samples prepared from ... explants that were cultured on SIM at various temperatures after pre-culture on CIM at 19°C ... rid3 mutation elevated ... STM

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

In the wild type, rRNA precursor levels were slightly higher at lower temperatures, suggesting that changes in ambient temperature can affect rRNA biosynthesis

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

rid2, a temperature-sensitive mutant that is mutated in a putative RNA methyltransferase gene and impaired in pre-rRNA processing (Ohbayashi et al., 2011 ... rRNA precursors of several different sizes such as 27S and 33S/35S accumulated to a very high level compared to the wild-type level in the rid2 ... grown under high temperature conditions

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

rid3 accumulated P(1)-A3 pre-rRNA more abundantly than 20S pre-rRNA

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

we performed real-time PCR analysis using cDNA samples prepared from ... explants that were cultured on SIM at various temperatures after pre-culture on CIM at 19°C ... rid2 mutation ... elevated CUC1 ... with the maximum effect occurring at 25°C

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

we performed real-time PCR analysis using cDNA samples prepared from ... explants that were cultured on SIM at various temperatures after pre-culture on CIM at 19°C ... rgd3 mutation did not elevate but suppress ... STM expressions

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

rid2 accumulated 20S pre-rRNA more abundantly than P(1)-A3 pre-rRNA

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

we measured rRNA precursors in wild-type and rid3 plants grown at various temperatures by RNA gel blot analysis ... rRNA precursors of several different sizes such as 27S and 33S/35S accumulated to a very high level compared to the wild-type level in the ... rid3 plants grown under high temperature conditions ... The accumulation of rRNA precursors in rid3 was strongly influenced by the growth temperature and the unusually high-level accumulation occurred at higher temperatures

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

Explants cultured on SIM at 19°C or 25°C for 5 or 8 days before GUS-signal detection were observed by light microscopy. In wild-type background explants cultured at 19°C for 5 days on SIM, strong GUS signals were detected in a broad area inside the calli and the signals locally extended to some spots of the callus surface. Those spots were mostly overlapped with mounds of relatively small cells. After 5 days culture at 25°C, wild-type background explants were forming SAMs, where GUS signal was strong at boundaries between the SAM and initiating leaf primordia and declined at the center. In rid2 background explants cultured at 19°C, two different patterns of GUS signal were observed: one was signal localized similarly to the pattern found in wild-type background explants, and the other was diffused or expanded signal pattern. When cultured at 25°C for 5 days, rid2 background explants showed ill-localized or diffused/expanded pattern of GUS signal, and after prolonged culture, they formed large mounds of GUS-positive cells. These results suggested that rid2 mutation may alter spatial control of CUC1 expression to lead to irregular development of cell mounds

Shinohara N, Ohbayashi I, Sugiyama M - Involvement of rRNA biosynthesis in the regulation of CUC1 gene expression and pre-meristematic cell mound formation during shoot regeneration

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  • Gene expression

SEN4 ... we observed that in rGRF3 leaves there was no significant induction ... at 4 days after detaching

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

transcript levels of ... CYCLINB1;1 in rGRF3x35S:GIF1 leaves were at least two-fold higher than in wild-type plants

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

The level of these genes was evaluated by quantitative reverse transcription polymerase chain reaction (RT-qPCR) in detached leaves at different days, where senescence was induced by darkness ... SEN1 ... levels increased at 2 days after incubation in wild-type plants, and this increase was higher at 4 days

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

transcript levels of KNOLLE ... in rGRF3x35S:GIF1 leaves were at least two-fold higher than in wild-type plants

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

The level of these genes was evaluated by quantitative reverse transcription polymerase chain reaction (RT-qPCR) in detached leaves at different days, where senescence was induced by darkness ... We observed a greater induction of ... SEN4 in 35S:miR396 plants

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

The level of these genes was evaluated by quantitative reverse transcription polymerase chain reaction (RT-qPCR) in detached leaves at different days, where senescence was induced by darkness ... We observed a greater induction of ... SEN1 ... in 35S:miR396 plants

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

the proliferation markers were also slightly higher in rGRF3 plants (approximately 1.5-fold for KNOLLE)

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

First, we generated a GRF3:GUS reporter and found that the promoter of GRF3 was active constitutively during leaf development

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

The level of these genes was evaluated by quantitative reverse transcription polymerase chain reaction (RT-qPCR) in detached leaves at different days, where senescence was induced by darkness ... SEN4 levels increased at 2 days after incubation in wild-type plants, and this increase was higher at 4 days

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

The level of these genes was evaluated by quantitative reverse transcription polymerase chain reaction (RT-qPCR) in detached leaves at different days, where senescence was induced by darkness ... in wild-type plants ... SAG12 level was strongly increased at the fourth day after incubation

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

SEN1 ... we observed that in rGRF3 leaves there was no significant induction ... at 4 days after detaching

Debernardi JM, Mecchia MA, Vercruyssen L, Smaczniak C, Kaufmann K, Inze D, Rodriguez RE, Palatnik JF - Post-transcriptional control of GRF transcription factors by microRNA miR396 and GIF co-activator affects leaf size and longevity

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  • Gene expression

Expression analyses of the FtsHi4 gene in Arabidopsis using qRT-PCR with gene-specific primers showed that FtsHi4 transcripts were ubiquitously present in organs, including ... rosette leaves

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... No significant changes were found for D2 ... in leaves

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

Expression analyses of the FtsHi4 gene in Arabidopsis using qRT-PCR with gene-specific primers showed that FtsHi4 transcripts were ubiquitously present in organs, including ... young true leaves

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... CP43 ... showed a reduction in leaves, but to a lesser degree than in cotyledons

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... levels of ... Cyt f (the subunit of cytochrome b6f complex ... were significantly reduced in cotyledons of the RNAi plants compared with WT

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

To increase our understanding of how defects in thylakoid membrane biogenesis caused by the loss-of-function of FtsHi4 affected PSII protein accumulation in the ftshi4 mutant, immunoblot analyses were conducted using the thylakoid proteins extracted from green and white ovules isolated from the heterozygous ftshi4-1 mutant plants. Accumulation of the FtsHi4 protein was non-detectable in the white ovules, and the ... PSII ... PsbO ... decreased significantly

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4 transcripts were most abundant in young leaves and present at the lowest levels in roots

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... No significant changes were found for ... PsbO ... in leaves

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... levels of ... PsbO (the subunit of the oxygen-evolving complex ... were significantly reduced in cotyledons of the RNAi plants compared with WT

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

To further investigate sub-organelle localization of the FtsHi4 protein, the thylakoid membrane fractions were isolated from wild-type plants and treated with alkaline and chaotropic salts to release membrane-associated proteins [40]. In this assay, PsbO (a 33-kDa luminal protein of PSII) and CP47 (a core protein of PSII) were used as markers to distinguish peripheral and integral membrane proteins, respectively. We found that FtsHi4 was retained in the membrane fraction, behaving similar to the integral protein CP47 (Fig. 4B). These results indicated that FtsHi4 was localized to the thylakoid as an integral membrane protein, even though it contains no predicted transmembrane domains

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

We also analyzed thylakoid membrane protein accumulation of ... PsbO with specific antibodies, and found that protein levels of the RNAi-FtsHi4 mutant decreased significantly compared with wild type

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... levels of ... D2 ... were significantly reduced in cotyledons of the RNAi plants compared with WT

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... levels of ... CP47 ... were significantly reduced in cotyledons of the RNAi plants compared with WT

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

Chloroplast thylakoid membranes contain a large number of proteins and protein complexes, such as photosystem I (PSI) and PSII, which play various roles in photosynthesis. FtsH proteins were previously shown to be localized near PSII at grana, and are responsible for turnover of the PSII D1 protein [28], [45]. Additionally, FtsHi4 shows a high degree of similarity to FtsH proteins [33]. Thus, we investigated whether FtsHi4 was also localized to PSII-enriched thylakoid membranes. To accomplish this, the thylakoid membrane protein complexes isolated from 4-week-old leaves were separated on blue native (BN)-PAGE gel, and the separated protein complexes corresponding to PSII supercomplexes (band I), monomeric PSI and dimeric PSII (band II), monomeric PSII (band III), dimeric cytochrome b6/f dimer (band IV), trimeric LHCII (band V), and monomeric LHCII (band VI) were fractionated by SDS-PAGE followed by immunoblotting using anti-FtsHi4 and -D2 antibodies. D2 protein is reported to assemble into the PSII complex [46]. Figure 5 showed that the D2 protein was mainly found at band II and III, and the FtsHi4 protein migrated in two protein complexes of ~460 and ~240 kDa, respectively, which also corresponded to the PSII dimer and monomer (Fig. 5A). Although some of the D2 complexes migrated at sizes similar to FtsHi4, the overall pattern differed between complexes. These results suggested that FtsHi4 forms a complex

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... No significant changes were found for ... Cyt f in leaves

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... CP47 showed a reduction in leaves, but to a lesser degree than in cotyledons

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

We also analyzed thylakoid membrane protein accumulation of D2 ... with specific antibodies, and found that protein levels of the RNAi-FtsHi4 mutant decreased significantly compared with wild type

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

To increase our understanding of how defects in thylakoid membrane biogenesis caused by the loss-of-function of FtsHi4 affected PSII protein accumulation in the ftshi4 mutant, immunoblot analyses were conducted using the thylakoid proteins extracted from green and white ovules isolated from the heterozygous ftshi4-1 mutant plants. Accumulation of the FtsHi4 protein was non-detectable in the white ovules, and the ... PSII ... D2 ... completely lost

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... D1 ... showed a reduction in leaves, but to a lesser degree than in cotyledons

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

To confirm localization, the N-terminal polypeptide of FtsHi4 containing the targeting signal peptide was fused to the N-terminus of green fluorescent protein (GFP) under control of the constitutive CaMV 35S promoter. The resulting construct was introduced into Arabidopsis leaf protoplasts. Green fluorescent signals were co-localized with the chlorophyll autofluorescence in the transformed protoplasts, whereas control GFP lacking the FtsHi4 signal peptide was retained in the cytosol (Fig. 4A). These results indicated that FtsHi4 was targeted to chloroplasts

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... levels of ... CP43 ... were significantly reduced in cotyledons of the RNAi plants compared with WT

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

Expression analyses of the FtsHi4 gene in Arabidopsis using qRT-PCR with gene-specific primers showed that FtsHi4 transcripts were ubiquitously present in organs, including ... cotyledons

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

FtsHi4-RNAi mutant ... levels of D1 ... were significantly reduced in cotyledons of the RNAi plants compared with WT

Lu X, Zhang D, Li S, Su Y, Liang Q, Meng H, Shen S, Fan Y, Liu C, Zhang C - FtsHi4 is essential for embryogenesis due to its influence on chloroplast development in Arabidopsis

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  • Gene expression

PSI2 ... coding sequences were fused in frame to YFP and cloned behind the 35S promoter. Transient expression of 35S:PSI-YFP was studied in mesophyll protoplasts isolated from Arabidopsis leaves. Nuclei were visualized by DAPI staining. Fluorescence imaging and overlay pictures revealed that ... PSI proteins were localized to the nucleus

Stührwohldt N, Hartmann J, Dahlke RI, Oecking C, Sauter M - The PSI family of nuclear proteins is required for growth in arabidopsis

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  • Gene expression

PSI3 coding sequences were fused in frame to YFP and cloned behind the 35S promoter. Transient expression of 35S:PSI-YFP was studied in mesophyll protoplasts isolated from Arabidopsis leaves. Nuclei were visualized by DAPI staining. Fluorescence imaging and overlay pictures revealed that ... PSI proteins were localized to the nucleus

Stührwohldt N, Hartmann J, Dahlke RI, Oecking C, Sauter M - The PSI family of nuclear proteins is required for growth in arabidopsis

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  • Gene expression

PSI1 ... coding sequences were fused in frame to YFP and cloned behind the 35S promoter. Transient expression of 35S:PSI-YFP was studied in mesophyll protoplasts isolated from Arabidopsis leaves. Nuclei were visualized by DAPI staining. Fluorescence imaging and overlay pictures revealed that ... PSI proteins were localized to the nucleus

Stührwohldt N, Hartmann J, Dahlke RI, Oecking C, Sauter M - The PSI family of nuclear proteins is required for growth in arabidopsis

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  • Gene expression

The predicted 700-bp-long AtMPK10 promoter region was cloned into a glucuronidase (GUS) reporter binary vector to generate transgenic lines ... 12- to 28-day old plants, GUS staining was found to coincide with ... hydathodes

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

Next we used RT–PCR assays to ask whether AtMKK2 and AtMPK10 have an overlapping expression profile and could function together at the same time. As presented in Figure 2C, expression of MPK10 and MKK2 overlapped in developing leaves, but only in a very narrow time window from 2 to 12 DAG with a strikingly sharp peak at 4 DAG

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

we performed RT–PCR assays on seedlings. As with GUS assays, we detected high AtMPK10 mRNA signals 2 DAG, which decreased 4 DAG and remained very low at later stages

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

The predicted 700-bp-long AtMPK10 promoter region was cloned into a glucuronidase (GUS) reporter binary vector to generate transgenic lines ... In 12- to 28-day old plants, GUS staining was found to coincide with small regions of minor veins, the marginal vasculature, the leaf tips, and the tips of the serrated margin of rosette leaves where veins meet

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

expression analysis using an 801-bp-long promoter region of MKK2 in a binary GUS reporter construct revealed also a partially overlapping expression pattern of MPK10 and MKK2 in leaves, with generally higher levels and a wider local distribution for MKK2

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

The predicted 700-bp-long AtMPK10 promoter region was cloned into a glucuronidase (GUS) reporter binary vector to generate transgenic lines. Eight independent transgenic lines were isolated and analyzed by histochemical GUS enzyme activity assays starting from 1-day-old seedlings to 28-day-old plants ( Figure 1A–1I). No GUS activity could be detected 1 d after germination (DAG) ( Figure 1A). GUS activity was observed in the tips of the cotyledons at 2 DAG and, from 4 to 12 DAG, the signal appeared at the margins of cotyledons and in a patchy manner along their veins

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

The increase of AtMPK10 transcriptional activity in wild-type seedlings exposed to HFCA was confirmed by RT–PCR. A higher but transient AtMPK10 signal was detected at 4 and 8 DAG after exposure to 5 μM and 40 μM HFCA ( Figure 5K) relative to untreated seedlings ( Figure 2B) that disappeared at 12 DAG. AtMPK10 expression showed an increase at all time points tested upon treatment with 100 μM HFCA, congruent with the higher GUS signal in ProAtMPK10::GUS plants

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

First, we tested whether the AtMPK10 promoter activity was controlled by auxin. ProAtMPK10::GUS plants grown on MS medium were treated with increasing concentrations of indole acetic acid (IAA) and AtMPK10 expression was followed by GUS staining ( Figure 5A– 5D). For this purpose, plants were either grown on MS medium containing 1 μM IAA ( Figure 5A) or were infiltrated 7 DAG with 10 μM or 100 μM IAA and tested for GUS activity 1 d later ( Figure 5C). In all instances, no evident changes in AtMPK10 promoter-driven GUS activity were observed ( Figure 5A– 5D), which was confirmed by semi-quantitative RT–PCR on wild-type plants (data not shown). These observations implied that AtMPK10 expression is not regulated by auxin

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

Next, to uncover a link between AtMPK10 expression and PAT, we exposed ProAtMPK10::GUS plants to different concentrations of the PAT inhibitor HFCA. To visualize the effect of PAT inhibition, we used the well-characterized auxin reporter line ProDR5::GFP ( Benkova et al., 2003; Friml et al., 2003) and compared the GFP signal (indicating auxin concentrations) to AtMPK10 promoter-driven GUS expression ( Figure 5E– 5J). In control ProAtMPK10::GUS plants, GUS activity was highest in cotyledons at the distal margin of the midvein ( Figure 5B) and at the hydathodes in fully expanded rosette leaves ( Figure 5D). Presence of low amounts of HFCA (5 μM) resulted in an increased ProAtMPK10::GUS activity at the midvein and the tip ( Figure 5E) that did not coincide with an increased expression of the ProDR5::GFP auxin sensing lines ( Figure 5F). Rather, ProDR5::GFP plants showed an increased GFP signal at the leaf margins and veins ( Figure 5F). Treatment of both transgenic reporter lines with higher amounts of HFCA (40 μM and 100 μM) caused higher GUS and GFP activity in cotyledons and thicker, misshaped veins, a reduction in cotyledon size, and an elongation of rosette leaves ( Figure 5G– 5J). In general, ProAtMPK10::GUS activity coincided with the GFP signal from the auxin reporter line at the leaf tip, the leaf margins, and vasculature ( Figure 5F, 5H, and 5J, and Supplemenal Figure 2), similarly to that described for auxin distribution ( Mattsson et al., 1999; Sieburth, 1999; Mattsson et al., 2003). Thus, inhibition of auxin transport increased the area of auxin maxima sites in the leaf concomitantly with an increase in AtMPK10 expression

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

During embryogenesis, consistently with online available expression data ( Winter et al., 2007), AtMPK10 expression seems to be restricted to the globular stage and was extremely low in RNA in situ assays

Stanko V, Giuliani C, Retzer K, Djamei A, Wahl V, Wurzinger B, Wilson C, Heberle-Bors E, Teige M, Kragler F - Timing is everything: highly specific and transient expression of a MAP kinase determines auxin-induced leaf venation patterns in Arabidopsis

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  • Gene expression

hua2–7 hulk1 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as MAF1

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 hulk1 ... FLC is down-regulated

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

HULK3 ... was expressed broadly in vegetative and reproductive apices in domains that are essentially indistinguishable from those for HUA2

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as ... TEM1

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

HUA2 ... Based on both AtGenExpress (Schmid et al., 2005) and deep RNA-Seq read data from various tissues for 19 divergent accessions (see Experimental procedures and Gan et al., 2011), Arabidopsis HULK genes are expressed in all plant organs, as well as both vegetative and reproductive shoots

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

Based on both AtGenExpress (Schmid et al., 2005) and deep RNA-Seq read data from various tissues for 19 divergent accessions (see Experimental procedures and Gan et al., 2011), Arabidopsis HULK genes are expressed in all plant organs, as well as both vegetative and reproductive shoots (Figure S3). Although relative expression levels varied modestly by tissue ... HULK1 having the lowest expression

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

we performed in situ hybridization of both vegetative and reproductive apices of Arabidopsis ... we observed that HUA2 was expressed throughout ... vegetative and reproductive apices

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

HULK2 (AT2G48160) ... The presence of putative NLS motifs in each of the HULK proteins indicates that they may localize in the nucleus. To assess the subcellular protein localization of HULK gene products, we transiently expressed and visualized GFP/YFP-tagged proteins in tobacco epidermal cells (Nicotiana benthamiana). All four HULK proteins localized to the nucleus

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 hulk1 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as ... TEM1

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

Based on both AtGenExpress (Schmid et al., 2005) and deep RNA-Seq read data from various tissues for 19 divergent accessions (see Experimental procedures and Gan et al., 2011), Arabidopsis HULK genes are expressed in all plant organs, as well as both vegetative and reproductive shoots (Figure S3). Although relative expression levels varied modestly by tissue, HULK2 ... typically expressed more highly

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 hulk1 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as ... TEM2

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as ... TEM2

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 ... FLC is down-regulated

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

HULK3 (AT3G63070) ... The presence of putative NLS motifs in each of the HULK proteins indicates that they may localize in the nucleus. To assess the subcellular protein localization of HULK gene products, we transiently expressed and visualized GFP/YFP-tagged proteins in tobacco epidermal cells (Nicotiana benthamiana). All four HULK proteins localized to the nucleus

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

Based on both AtGenExpress (Schmid et al., 2005) and deep RNA-Seq read data from various tissues for 19 divergent accessions (see Experimental procedures and Gan et al., 2011), Arabidopsis HULK genes are expressed in all plant organs, as well as both vegetative and reproductive shoots (Figure S3). Although relative expression levels varied modestly by tissue ... HULK3 ... typically expressed more highly

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

HULK1 (AT5G08230) ... The presence of putative NLS motifs in each of the HULK proteins indicates that they may localize in the nucleus. To assess the subcellular protein localization of HULK gene products, we transiently expressed and visualized GFP/YFP-tagged proteins in tobacco epidermal cells (Nicotiana benthamiana). All four HULK proteins localized to the nucleus

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

HULK2 ... was expressed broadly in vegetative and reproductive apices in domains that are essentially indistinguishable from those for HUA2

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 hulk1 hulk2 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as ... TEM2

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 hulk1 hulk2 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as ... TEM1

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 hulk1 hulk2 ... several other genes with known roles in flowering time regulation displayed decreased expression levels, such as MAF1

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

we performed in situ hybridization of both vegetative and reproductive apices of Arabidopsis ... we observed that HUA2 was expressed throughout young primordia

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

HUA2 (AT5G23150) ... The presence of putative NLS motifs in each of the HULK proteins indicates that they may localize in the nucleus. To assess the subcellular protein localization of HULK gene products, we transiently expressed and visualized GFP/YFP-tagged proteins in tobacco epidermal cells (Nicotiana benthamiana). All four HULK proteins localized to the nucleus

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

hua2–7 hulk1 hulk2 ... FLC is down-regulated

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

we performed in situ hybridization of both vegetative and reproductive apices of Arabidopsis ... HULK1 ... was expressed broadly in vegetative and reproductive apices in domains that are essentially indistinguishable from those for HUA2

Jali SS, Rosloski SM, Janakirama P, Steffen JG, Zhurov V, Berleth T, Clark RM, Grbic V - A plant-specific HUA2-LIKE (HULK) gene family in Arabidopsis thaliana is essential for development

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  • Gene expression

According to public microarray data, VCC mRNA seems to be more abundant in roots (phloem), hypocotyl, shoot apex, flowers, and embryos during seed development (eFP Browser; http://bar.utoronto.ca; Supplemental Figs. S4 and S5). To corroborate these data, we performed quantitative RT-PCR analysis using RNA from different tissues/developmental stages. Our results confirm that the VCC transcript is most abundant in 2-month-old hypocotyls, although it is detected in other organs/developmental stages

Roschzttardtz H, Paez-Valencia J, Dittakavi T, Jali S, Reyes FC, Baisa G, Anne P, Gissot L, Palauqui JC, Masson PH, Bednarek SY, Otegui MS - The VASCULATURE COMPLEXITY AND CONNECTIVITY gene encodes a plant-specific protein required for embryo provasculature development

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Twenty pVCC:GUS transgenic lines were isolated and analyzed. GUS activity was detected in ... cotyledon veins after germination

Roschzttardtz H, Paez-Valencia J, Dittakavi T, Jali S, Reyes FC, Baisa G, Anne P, Gissot L, Palauqui JC, Masson PH, Bednarek SY, Otegui MS - The VASCULATURE COMPLEXITY AND CONNECTIVITY gene encodes a plant-specific protein required for embryo provasculature development

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  • Gene expression

We also analyzed lines expressing pPIN1:PIN1-GFP and did not detect any changes in either the expression or the polar localization of PIN1-GFP in vcc-2 embryos

Roschzttardtz H, Paez-Valencia J, Dittakavi T, Jali S, Reyes FC, Baisa G, Anne P, Gissot L, Palauqui JC, Masson PH, Bednarek SY, Otegui MS - The VASCULATURE COMPLEXITY AND CONNECTIVITY gene encodes a plant-specific protein required for embryo provasculature development

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  • Gene expression

We did not detect changes in DR5rev promoter activity caused by the vcc-2 mutation

Roschzttardtz H, Paez-Valencia J, Dittakavi T, Jali S, Reyes FC, Baisa G, Anne P, Gissot L, Palauqui JC, Masson PH, Bednarek SY, Otegui MS - The VASCULATURE COMPLEXITY AND CONNECTIVITY gene encodes a plant-specific protein required for embryo provasculature development

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  • Gene expression

To analyze in more detail the expression pattern of VCC, we obtained transgenic plants expressing GUS under the transcriptional control of a 1,900-bp DNA fragment derived from a sequence located immediately upstream of the VCC coding region. Twenty pVCC:GUS transgenic lines were isolated and analyzed. GUS activity was detected in procambial cells at the hypocotyl of mature embryos

Roschzttardtz H, Paez-Valencia J, Dittakavi T, Jali S, Reyes FC, Baisa G, Anne P, Gissot L, Palauqui JC, Masson PH, Bednarek SY, Otegui MS - The VASCULATURE COMPLEXITY AND CONNECTIVITY gene encodes a plant-specific protein required for embryo provasculature development

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  • Gene expression

Since we failed to detect consistent GUS expression in developing embryos, we performed RT-PCR and in situ hybridization of VCC transcripts and confirmed that VCC is expressed in torpedo and bent cotyledon stage embryos (Fig. 5, H and I). The detection of VCC transcripts by in situ hybridization showed that VCC is expressed in all embryo cells, including procambial cells, at the bent cotyledon embryo stage

Roschzttardtz H, Paez-Valencia J, Dittakavi T, Jali S, Reyes FC, Baisa G, Anne P, Gissot L, Palauqui JC, Masson PH, Bednarek SY, Otegui MS - The VASCULATURE COMPLEXITY AND CONNECTIVITY gene encodes a plant-specific protein required for embryo provasculature development

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  • Gene expression

Next, we tested whether the epidermal- specific expression of ABS5/T5L1 is sufficient to alter auxin homeostasis. We transformed DR5::GUS plants with PAtML1::ABS5 construct and assayed GUS activities in independent transgenic lines that exhibited the upward curling leaf phenotype. Figure 8D-F showed that auxin distributions as indicated by the expressions of DR5::GUS were increased in PAtML1::ABS5 lines in a way that is similar to what was found in abs5-1D or the ABS5/T5L1 OE lines

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU3 ... transcripts in ... activation-tagged lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU3 ... transcripts in ... activation-tagged lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU2 ... transcripts in ... activation-tagged lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ICU1 ... transcripts in ... activation-tagged lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

As an initial attempt to understand the function of ABS5/T5L1, we examined its tissue expression profile via semi-quantitative RT-PCR with cDNAs obtained from various wild type Arabidopsis tissues. Figure 3A shows that ABS5 transcripts accumulated in all tissues examined. ABS5/T5L1 expression was relatively lower in aerial part of two-week-old seedlings and older rosette leaves but is highly expressed in roots and stems

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU3 ... transcripts in ... loss-of-function ... lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU2 ... transcripts in ... loss-of-function ... lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU4 transcripts in ... activation-tagged lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU4 transcripts in ... loss-of-function ... lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU2 ... transcripts in ... loss-of-function ... lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

The expression patterns of the synthetic DR5::GUS reporter gene were used to deduce the distributions of auxin maxima [34]. In wild type background, the strongest DR5::GUS signals coincided with the positions of the hydathodes in cotyledons and the first true leaves of two-week-old seedlings (Figure 4A–B). However, in abs5-1D/+ heterozygous background, DR5::GUS activities were less restricted but more evenly distributed along the entire leaf margin compared to that of wild type (Figure 4C–D). As illustrated in Figure 4E–G, stronger and more diffused GUS signals were also found in leaf marginal areas in transgenic lines over-expressing ABS5/T5L1 in DR5::GUS background

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We next analyzed the accumulation of ABS7/MYB101 transcripts in different Arabidopsis tissues. As shown in Figure 6E, ABS7/MYB101 transcripts were only detected in flowers and siliques by semi-quantitative RT-PCR. This is consistent with previous finding that ABS7/MYB101 is highly expressed in seeds and floral tissues

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU4 transcripts in ... activation-tagged lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ICU1 ... transcripts in ... loss-of-function ... lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ICU1 ... transcripts in ... activation-tagged lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU2 ... transcripts in ... activation-tagged lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We next explored the sub-cellular localization of ABS5/T5L1 protein. Vectors expressing eGFP alone or the ABS5-GFP fusion protein under the control of 35S promoter were used to transform wild type leaf protoplasts. Nuclei of protoplasts were labeled via staining with the fluorescent dye Hoechst33342 [33]. Protoplasts expressing the control P35S::GFP showed GFP signals in both the cytosol and the nucleus (Figure 3B). In contrast, protoplasts expressing P35S::ABS5-GFP displayed green fluorescence signals exclusively in the nucleus, as indicated by the Hoechst33342 staining (Figure 3B). These data show that ABS5/T5L1 resides in the nucleus, consistent with its potential function as a transcription factor

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU3 ... transcripts in ... loss-of-function ... lines of ... ABS7/MYB101 using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

Consistent with its identity as a transcription factor, ABS7-GFP localized to the nucleus in protoplast transient expression assays

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ICU1 ... transcripts in ... loss-of-function ... lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

We compared the accumulation of ... ICU4 transcripts in ... loss-of-function ... lines of ABS5/T5L1 ... using semi-quantitative RT-PCR. No significant changes in the expression levels ... were observed

An R, Liu X, Wang R, Wu H, Liang S, Shao J, Qi Y, An L, Yu F - The over-expression of two transcription factors, ABS5/bHLH30 and ABS7/MYB101, leads to upwardly curly leaves

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  • Gene expression

Two existing orthologues of LSG1 in A. thaliana prompted the question whether the two genes show a differential expression. To this end, the expression level of LSG1-1 and LSG1-2 in different tissues and developmental stages was determined by quantitative RT-PCR (qRT-PCR, Figure 5a). The expression was normalized to the amount of RNA used for reverse transcription because the expression of reference genes like UBIQUITIN3 (UBI3) is not equal in all samples (Missbach et al., 2013). Both mRNAs can be detected in all tissues and developmental stages tested, suggesting that both proteins are ubiquitously expressed (Figure 5a). Interestingly, LSG1-2 is highly expressed in reproductive and strongly dividing tissues like young plants, flowers and roots (Figure 5a). For these tissues, a high amount of synthesized ribosomes is required to ensure fast growth. Furthermore, this expression profile parallels that for other ribosome biogenesis co-factors

Weis BL, Missbach S, Marzi J, Bohnsack MT, Schleiff E - The 60S associated ribosome biogenesis factor LSG1-2 is required for 40S maturation in Arabidopsis thaliana

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  • Gene expression

To support a functional relation of atLSG1-1 ... in ribosome biogenesis, we applied A. thaliana cell culture lysate to continuous sucrose density gradient centrifugation. The UV absorption profile clearly shows peaks for 40S, 60S/80S and polysomes, which is confirmed by the mature rRNAs in the corresponding fractions (Figure 3). By western blotting with antibodies against atNOB1 and atENP1 we confirmed that pre-40S migrates in fractions 11 and 12, while pre-60S could be identified in fractions 15 and 16 by the presence of the RBF ateIF6-2 and the 27SB pre-rRNA (Figure 3; Missbach et al., 2013). Western blot analysis using the atLSG1 antibody demonstrates that ... atLSG1-1 is exclusively found at the top part of the gradient where free proteins and RNAs reside

Weis BL, Missbach S, Marzi J, Bohnsack MT, Schleiff E - The 60S associated ribosome biogenesis factor LSG1-2 is required for 40S maturation in Arabidopsis thaliana

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  • Gene expression

Normalized to atLSG1-1, atLSG1-2 is strongly expressed in young plants, flowers and cell culture, but less in rosette, stem and hypsophyll that do not have a high demand for newly synthesized ribosomes

Weis BL, Missbach S, Marzi J, Bohnsack MT, Schleiff E - The 60S associated ribosome biogenesis factor LSG1-2 is required for 40S maturation in Arabidopsis thaliana

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  • Gene expression

we analysed the subcellular localization ... in A. thaliana ... We generated GFP fusions for expression in A. thaliana mesophyll protoplasts co-transformed with a nucleolar marker (atFIB2-mCherry). Consistent with the cytoplasmic function of scLsg1 (Kallstrom et al., 2003; Hedges et al., 2005) we observed clear cytoplasmic fluorescence for ... atLSG1-1

Weis BL, Missbach S, Marzi J, Bohnsack MT, Schleiff E - The 60S associated ribosome biogenesis factor LSG1-2 is required for 40S maturation in Arabidopsis thaliana

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  • Gene expression

we analysed the subcellular localization ... in A. thaliana. We generated GFP fusions for expression in A. thaliana mesophyll protoplasts co-transformed with a nucleolar marker (atFIB2-mCherry). Consistent with the cytoplasmic function of scLsg1 (Kallstrom et al., 2003; Hedges et al., 2005) we observed clear cytoplasmic fluorescence for ... atLSG1-2

Weis BL, Missbach S, Marzi J, Bohnsack MT, Schleiff E - The 60S associated ribosome biogenesis factor LSG1-2 is required for 40S maturation in Arabidopsis thaliana

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  • Gene expression

We generated GFP fusions for expression in A. thaliana mesophyll protoplasts ... the GFP fluorescence was also obtained in the nucleus in case of atLSG1-2–GFP

Weis BL, Missbach S, Marzi J, Bohnsack MT, Schleiff E - The 60S associated ribosome biogenesis factor LSG1-2 is required for 40S maturation in Arabidopsis thaliana

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  • Gene expression

Two existing orthologues of LSG1 in A. thaliana prompted the question whether the two genes show a differential expression. To this end, the expression level of LSG1-1 and LSG1-2 in different tissues and developmental stages was determined by quantitative RT-PCR (qRT-PCR, Figure 5a). The expression was normalized to the amount of RNA used for reverse transcription because the expression of reference genes like UBIQUITIN3 (UBI3) is not equal in all samples (Missbach et al., 2013). Both mRNAs can be detected in all tissues and developmental stages tested, suggesting that both proteins are ubiquitously expressed ... expression of LSG1-1 is more equally distributed but expressed highest in stem and hypsophyll on day 66 (Figure 5a). In here, hypsophyll refers to leaf-like structures out of the axil of which a stalk of a flower arises. A similar observation can be made for the protein level of atLSG1

Weis BL, Missbach S, Marzi J, Bohnsack MT, Schleiff E - The 60S associated ribosome biogenesis factor LSG1-2 is required for 40S maturation in Arabidopsis thaliana

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  • Gene expression

in BAP-treated ... imgi2 leaves ... this induction is not accompanied by enhanced expression of ... cytokinin biosynthetic ... IPT5

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

ARR4–ARR7 ... In addition to an elevated expression in BAP-treated im (Fig. 3C), ARRs are dramatically up-regulated in stage II and III imgi2 leaves

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

imgi2spy4 mutants ... marked increase in the expression of GASA4, a representative GA response gene

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

We next conducted western immunoblot analyses to examine the accumulation of seven representative photosynthetic proteins from im, gi2, imgi2, and Col-0 leaves at developmental stages I to III; the proteins were loaded on the gels on an equal fresh weight basis. Figure 7 shows that, during stage I, each of the seven proteins accumulates to a similar extent in gi2 and the wild type and also to a similar, although reduced, extent in im and imgi2; the decreases in im and imgi2 are expected and caused by the presence of white tissues in the whole-leaf samples (Aluru et al., 2007). During stage II, the pattern of protein accumulation in imgi2 begins to resemble that of gi2 (a notable exception being D1), such that by stage III, all seven proteins have accumulated to high levels and the imgi2 and gi2 profiles are indistinguishable. Stage III wild-type and im leaves, on the other hand, are senescent and, not surprisingly, have much reduced amounts of all seven proteins

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

in BAP-treated ... imgi2 leaves ... this induction is not accompanied by enhanced expression of ... cytokinin biosynthetic ... IPT1

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

imgi2spy4 mutants ... decrease in the expression of the cytokinin response genes ARR4 to ARR7

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

We suggest that a similar cytokinin-dependent mechanism is operative in imgi2, inasmuch as the alterations in chloroplast number and size in imgi2 are accompanied by a sharp up-regulation o ... PDV2 expression ... Importantly, this up-regulation occurs late in development, coincident with the time when gi-mediated effects on cytokinin synthesis/signaling are proposed to be triggered and newly emerging im leaves become all green

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

imgi2spy4 mutants ... decrease in the expression of the cytokinin response genes ARR4 to ARR7

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

ARR4–ARR7 ... In addition to an elevated expression in BAP-treated im (Fig. 3C), ARRs are dramatically up-regulated in stage II and III imgi2 leaves

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

imgi2spy4 mutants ... decrease in the expression of the cytokinin response genes ARR4 to ARR7

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

ARR4–ARR7 ... In addition to an elevated expression in BAP-treated im (Fig. 3C), ARRs are dramatically up-regulated in stage II and III imgi2 leaves

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

We suggest that a similar cytokinin-dependent mechanism is operative in imgi2, inasmuch as the alterations in chloroplast number and size in imgi2 are accompanied by a sharp up-regulation of CRF2 ... expression ... Importantly, this up-regulation occurs late in development, coincident with the time when gi-mediated effects on cytokinin synthesis/signaling are proposed to be triggered and newly emerging im leaves become all green

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

ARR4–ARR7 ... In addition to an elevated expression in BAP-treated im (Fig. 3C), ARRs are dramatically up-regulated in stage II and III imgi2 leaves

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

imgi2spy4 mutants ... decrease in the expression of the cytokinin response genes ARR4 to ARR7

Putarjunan A, Rodermel S - gigantea suppresses immutans variegation by interactions with cytokinin and gibberellin signaling pathways

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  • Gene expression

CRU1 ... expressed at high levels in 6 d gct seedlings, and their expression declined gradually in this mutant over the next 2 weeks

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... had no significant effect on the expression of miR159

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

the mRNA levels of ... SPL3 ... reduced in ... gct

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

highly overexpressed in ... gct ... the flowering repressor FLC

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in gct ... decrease in the expression of miR172 at 7 d, 14 d and 21 d

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in ... cct ... flowering genes that showed significant decreases in expression included ... CONSTANS (CO

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

the mRNA levels of ... SPL3 ... reduced in ... cct

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... reduced expression of ... CO

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

OLEO1 ... expressed at high levels in 6 d gct seedlings, and their expression declined gradually in this mutant over the next 2 weeks ... We also compared the expression of these genes in 7 d gct and cct seedlings with the grow and arrest phenotypes (Fig. 2F). In every case, these genes were expressed at significantly higher levels in seedlings with the arrest phenotype ... OLEO1 was elevated 4-fold in grow gct seedlings

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

ATTI7 ... expressed at high levels in 6 d gct seedlings, and their expression declined gradually in this mutant over the next 2 weeks

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

the mRNA levels of ... SPL9 ... reduced in ... cct ... although in the case of SPL9 this effect was only observed at 21 d

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

CRU1 was unaffected by cct

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct ... elevated expression of the floral repressor FLC ... FLC transcripts were much higher than in wt at 6 d, and had decreased several fold by 21 d ... Although FLC is expressed more highly in juvenile than in adult leaves (supplementary material Fig. S3), a secondary effect of leaf identity is unlikely to explain the large differences in FLC levels between wt, gct and cct because the largest differences in FLC were observed at 6 d, when all three genotypes have only two juvenile leaf primordia

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

Northern blot analysis revealed that miR156 levels were approximately twice as high in gct ... as in wt plants at 7 d, 14 d and 21 d after germination. miR156 levels decreased steadily in all genotypes, so that at 21 d the amount of miR156 was about half that seen at 7 d

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

the mRNA levels of ... SPL9 ... reduced in ... gct ... although in the case of SPL9 this effect was only observed at 21 d

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct had no significant effect on the expression of ... miR161

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct had no significant effect on the expression of ... miR168

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... reduced expression of ... SOC1 ... SOC1 increased slightly from 6 d to 21 d ... These changes in FT and SOC1 gene expression are not attributable to differences in leaf identity between wt, gct and cct, as FT and SOC1 show essentially the same expression in juvenile and adult leaves

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... had no significant effect on the expression of ... miR168

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in ... cct ... flowering genes that showed significant decreases in expression included ... SUPPRESSOR OF CONSTANS 1 (SOC1)

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

highly overexpressed in ... cct ... the flowering repressor FLC

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... had no significant effect on the expression of ... miR161

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... reduced expression of ... FRUITFULL

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... reduced expression of ... SEPALLATA3

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in ... cct ... flowering genes that showed significant decreases in expression included FLOWERING LOCUS T (FT)

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... reduced expression of ... FT ... levels of FT ... increased slightly from 6 d to 21 d ... These changes in FT and SOC1 gene expression are not attributable to differences in leaf identity between wt, gct and cct, as FT and SOC1 show essentially the same expression in juvenile and adult leaves

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

At2S2 ... also misexpressed in 6 d cct seedlings, but were much less elevated than in gct ... also compared the expression of these genes in 7 d gct and cct seedlings with the grow and arrest phenotypes (Fig. 2F). In every case, these genes were expressed at significantly higher levels in seedlings with the arrest phenotype. For example, At2S2 was elevated ... 88-fold in arrest gct seedlings

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

ATTI7 ... also misexpressed in 6 d cct seedlings, but were much less elevated than in gct

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

At2S2 ... expressed at high levels in 6 d gct seedlings, and their expression declined gradually in this mutant over the next 2 weeks ... We also compared the expression of these genes in 7 d gct and cct seedlings with the grow and arrest phenotypes (Fig. 2F). In every case, these genes were expressed at significantly higher levels in seedlings with the arrest phenotype. For example, At2S2 was elevated 3-fold in grow gct seedlings

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in ... gct ... flowering genes that showed significant decreases in expression included FLOWERING LOCUS T (FT)

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

Analysis of ... CCT expression in a public dataset revealed ... broadly expressed at low levels throughout post-embryonic development

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct ... reduced expression of ... SOC1 ... SOC1 increased slightly from 6 d to 21 d ... These changes in FT and SOC1 gene expression are not attributable to differences in leaf identity between wt, gct and cct, as FT and SOC1 show essentially the same expression in juvenile and adult leaves

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

gct ... elevated expression of the floral repressor FLC ... FLC transcripts were much higher than in wt at 6 d, and had decreased several fold by 21 d ... Although FLC is expressed more highly in juvenile than in adult leaves (supplementary material Fig. S3), a secondary effect of leaf identity is unlikely to explain the large differences in FLC levels between wt, gct and cct because the largest differences in FLC were observed at 6 d, when all three genotypes have only two juvenile leaf primordia

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

Northern blot analysis revealed that miR156 levels were approximately twice as high in ... cct mutants as in wt plants at 7 d, 14 d and 21 d after germination. miR156 levels decreased steadily in all genotypes, so that at 21 d the amount of miR156 was about half that seen at 7 d

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

Analysis of GCT ... expression in a public dataset revealed ... broadly expressed at low levels throughout post-embryonic development

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct ... reduced expression of ... FT ... levels of FT ... increased slightly from 6 d to 21 d ... These changes in FT and SOC1 gene expression are not attributable to differences in leaf identity between wt, gct and cct, as FT and SOC1 show essentially the same expression in juvenile and adult leaves

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct had no significant effect on the expression of miR159

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct ... reduced expression of ... SEPALLATA3

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in ... gct ... flowering genes that showed significant decreases in expression included ... SUPPRESSOR OF CONSTANS 1 (SOC1)

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

we examined FLC levels in 35S::miR156A plants and found a ∼30% decrease in the level of FLC compared with wt

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

OLEO1 ... also misexpressed in 6 d cct seedlings, but were much less elevated than in gct ... We also compared the expression of these genes in 7 d gct and cct seedlings with the grow and arrest phenotypes (Fig. 2F). In every case, these genes were expressed at significantly higher levels in seedlings with the arrest phenotype ... OLEO1 was elevated ... 162-fold in arrest gct seedlings

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in ... cct ... decrease in the expression of miR172 at 7 d, 14 d and 21 d

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct ... reduced expression of ... CO

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

cct ... reduced expression of ... FRUITFULL

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in ... gct ... flowering genes that showed significant decreases in expression included ... CONSTANS (CO)

Gillmor CS, Silva-Ortega CO, Willmann MR, Buendía-Monreal M, Poethig RS - The Arabidopsis Mediator CDK8 module genes CCT (MED12) and GCT (MED13) are global regulators of developmental phase transitions

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  • Gene expression

in mterf9 ... class III genes rps18 ... 2.2 ... fold upregulated

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

We found that MDA1 transcript levels were also significantly higher in twr-1 than in Col-0 (1.5 ± 0.1; P = 1.5E-04)

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

in mterf9 ... class III genes ... rpoB ... 4.7-fold upregulated

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

RBCS1A was downregulated (1.6-fold ... in the mterf9 mutant as compared with Col-0

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

the amount of transcripts of class I ... psbA ... was significantly smaller in mterf9 than in the WT

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

RpoTp/SCA3 was upregulated (2.6-fold) in the mterf9 mutant as compared with Col-0

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

We investigated the spatial expression pattern of the MTERF9 gene using qRT-PCR and RNA extracted from different organs. MTERF9 transcripts were detected in all the organs studied. In comparison to roots, MTERF9 was expressed at higher levels in buds, open flowers, stems and rosette leaves [upregulated 4.6-fold (4.6 ± 1.1; P < 0.01), 4.2-fold (4.2 ± 1.2; P < 0.01), 3.3-fold (3.3 ± 1.0; P < 0.01) and 2.9-fold (2.9 ± 0.5; P < 0.01), respectively]. We confirmed these experimental results through the in silico analysis of MTERF9 expression using the BAR (http://bar.utoronto.ca/efp/cgi-bin/efpWeb.cgi). The online data available from the ATH1 microarray and the At-TAX whole genome tilling array show that MTERF9 is predominantly expressed in the aerial part of seedlings, cotyledons and expanding first leaves, and that it reaches its lowest level of expression in roots.

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

The amount of transcripts of the BSM/RUG2 gene were also significantly increased in mterf9

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

To shed light on the function of MTERF9, we used the Co-Expression tool from genevestigator (https://www.genevestigator.com/gv/plant.jsp; Zimmermann et al. 2004) to find genes co-expressed (candidates to be co-regulated) with MTERF9. We extended the analysis to the mTERF genes MDA1 and BSM/RUG2 given the similarity between both the phenotypes of mterf9, mda1 and rug2-2 and the functional relationship between MDA1 and MTERF9 (see later). A list of the top 50 most correlated genes was obtained for each target gene using the dataset of anatomical parts. The Pearson's correlation coefficient (PCC) values obtained ranged from 0.73 to 0.94 (Table S5). MDA1 and MTERF9 were co-expressed (PCC = 0.82; Table S5). We analyzed the genes co-expressed with MDA1 and MTERF9 by using the GO Annotation tool from TAIR (http://www.arabidopsis.org/tools/bulk/go/index.jsp). As regards the GO terms for ‘cellular components’, the main categories for the MTERF9 co-expressed genes were ‘chloroplast’ and ‘plastid’, associated with 37 and 12 genes, respectively, representing in both cases almost a fivefold enrichment compared with the whole A. thaliana genome (Table S6). Regarding the GO terms for ‘biological processes’, the two most represented categories among the MTERF9 co-expressed genes were ‘other cellular processes’ and ‘other metabolic processes’. Similar results were obtained for MDA1 (Table S6). Twenty-one genes (43.7%) were commonly co-expressed with MDA1 and MTERF9 (Table S5), most of them (71.4%) included in the cellular component category of ‘chloroplast’ (Table S6) such as At2g36000, At4g20130, At3g20230 and At2g33430, which encode an mTERF, the PTAC14 protein, the L18p/L5e ribosomal protein and the multiple organellar RNA editing factor 2 (MORF2), respectively, all involved in plastid gene expression (Table S5). Regarding RUG2, 13 (24%) and 9 (18%) of the top 50 co-expressed genes were common to those of MDA1 and MTERF9, respectively (Table S5).

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

the amount of transcripts of class I ... psbD was significantly smaller in mterf9 than in the WT

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

in mterf9 ... the transcript contents of the class II gene clpP (2.5-fold upregulated)

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

in mterf9 ... class III genes ... accD ... 2.6 ... fold upregulated

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

Compared with Col-0, MDA1 was upregulated in mterf9 (1.8-fold, Table 1)

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

MTERF9 was upregulated in mda1-2 (1.4 ± 0.3; P = 0.09)

Robles P, Micol JL, Quesada V - Mutations in the plant-conserved MTERF9 alter chloroplast gene expression, development and tolerance to abiotic stress in Arabidopsis thaliana

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  • Gene expression

In genetic backgrounds with reduced REV mRNA ... 35S::miR165a ... the spatial expression of WRKY53 is more restricted to hydatodes and overall expression levels appear to be much lower in leaf tissue

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT5G47180 ... Expression of the third group of genes is also altered at various time points in ... rev5 wrky53 mutants compared with Col-0, but in all lines the transcriptional increase during senescence is diminished

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

mRNA expression levels of ... SAG13 ... were significantly reduced at the late developmental stages in wrky53

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

quantitative PCR analysis revealed a strong induction of WRKY53 in response to H2O2 application in Col-0 wild-type plants. These changes of WRKY53 mRNA levels were significantly dampened in ... plants with reduced HD-ZIPIII activity (35S::ZPR3)

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

REV ... expressed in young seedlings

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

quantitative PCR analysis revealed a strong induction of WRKY53 in response to H2O2 application in Col-0 wild-type plants. These changes of WRKY53 mRNA levels were significantly dampened in ... 35S::miR165a

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

REV is a positive regulator of WRKY53 expression and is required for high level of WRKY53 induction in response to oxidative stress. This could be either due to an upregulation of REV mRNA in response to oxidative stress or to a response of the REV protein to altered redox conditions. To test whether REV mRNA is upregulated in response to hydrogen peroxide treatment, we treated Col-0 wild-type plants with H2O2 and performed quantitative RT-PCRs. We detected no induction of REV mRNA but a slight decrease in response to high levels of hydrogen peroxide (supplementary material Fig. S4), excluding the idea that REV is transcriptionally upregulated in response to oxidative stress

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT5G47180 ... Expression of the third group of genes is also altered at various time points in ... rev5 ... compared with Col-0, but in all lines the transcriptional increase during senescence is diminished

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT1G74940 ... detected elevated levels in ... rev5 ... at early developmental stages (weeks 4 and 5) and decreased levels at the late stages

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

quantitative PCR analysis revealed a strong induction of WRKY53 in response to H2O2 application in Col-0 wild-type plants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

A genome-wide survey with a high temporal resolution classified thousands of genes as differentially expressed senescence genes (DESGs) (Breeze et al., 2011). Interestingly, REV was also classified as a DESG, showing a dip of expression at the onset of leaf senescence

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

mRNA expression levels of ... SAG13 ... were significantly reduced at the late developmental stages in ... rev5 wrky53 mutants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

ZFP8 ... Expression of the third group of genes is also altered at various time points in ... rev5 wrky53 mutants compared with Col-0, but in all lines the transcriptional increase during senescence is diminished

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

seedlings carrying mutations in REV and plants with globally reduced HD-ZIPIII activity show reduced levels of WRKY53 mRNA

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT5G47180 ... Expression of the third group of genes is also altered at various time points in ... rev5 ... compared with Col-0, but in all lines the transcriptional increase during senescence is diminished

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

In genetic backgrounds with reduced REV mRNA ... rev-5 ... the spatial expression of WRKY53 is more restricted to hydatodes and overall expression levels appear to be much lower in leaf tissue

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

HAT3 ... we found that expression in ... rev5 wrky53 mutants is maintained at a higher level towards the onset of senescence (weeks 5 and 6), whereas expression levels are dropping rapidly in wild-type plants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

genetic backgrounds ... with reduced REV protein activity ... 35S::ZPR3 ... the spatial expression of WRKY53 is more restricted to hydatodes and overall expression levels appear to be much lower in leaf tissue

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT1G49200 ... we found that expression in ... rev5 ... is maintained at a higher level towards the onset of senescence (weeks 5 and 6), whereas expression levels are dropping rapidly in wild-type plants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

mRNA expression levels of ... SAG13 ... were significantly reduced at the late developmental stages in ... rev5

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

mRNA expression levels of SENESCENCE ASSOCIATED GENE 12 (SAG12) ... were significantly reduced at the late developmental stages in ... rev5 wrky53 mutants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

IDD11 ... we detected elevated levels in ... rev5 ... at early developmental stages (weeks 4 and 5) and decreased levels at the late stages

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT1G49200 ... we found that expression in wrky53 ... is maintained at a higher level towards the onset of senescence (weeks 5 and 6), whereas expression levels are dropping rapidly in wild-type plants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

Using publicly available microarray data (http://bar.utoronto.ca), we also analyzed at which stages of development and in response to which treatments REV and WRKY53 are co-expressed (supplementary material Fig. S2). We find evidence for co-expression during early developmental stages but not during the later stages of leaf development. This discrepancy suggests that REV mRNA is not upregulated at late stages of leaf development but residual protein could respond to a cellular signal and induce the expression of REV-regulated senescence targets. However, our GUS expression analyses using REV::GUS plants indicate that REV is still expressed to certain extends in older leaves

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

IDD11 ... we detected elevated levels in wrky53 ... at early developmental stages (weeks 4 and 5) and decreased levels at the late stages

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT1G74940 ... we detected elevated levels in ... rev5 wrky53 mutants at early developmental stages (weeks 4 and 5) and decreased levels at the late stages

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

WRKY53 shows a broader less-specific pattern of expression and is most highly expressed in old leaves

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

WRKY53 ... expressed in young seedlings

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

IDD11 ... we detected elevated levels in ... rev5 wrky53 mutants at early developmental stages (weeks 4 and 5) and decreased levels at the late stages

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

ZFP8 ... Expression of the third group of genes is also altered at various time points in wrky53 ... compared with Col-0, but in all lines the transcriptional increase during senescence is diminished

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

HAT3 ... we found that expression in wrky53 ... is maintained at a higher level towards the onset of senescence (weeks 5 and 6), whereas expression levels are dropping rapidly in wild-type plants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

mRNA expression levels of SENESCENCE ASSOCIATED GENE 12 (SAG12) ... were significantly reduced at the late developmental stages in wrky53

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT1G49200 ... we found that expression in ... rev5 wrky53 mutants is maintained at a higher level towards the onset of senescence (weeks 5 and 6), whereas expression levels are dropping rapidly in wild-type plants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

quantitative PCR analysis revealed a strong induction of WRKY53 in response to H2O2 application in Col-0 wild-type plants. These changes of WRKY53 mRNA levels were significantly dampened in rev mutant plants (rev-5)

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

ZFP8 ... Expression of the third group of genes is also altered at various time points in ... rev5 ... compared with Col-0, but in all lines the transcriptional increase during senescence is diminished

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT1G74940 ... we detected elevated levels in wrky53 ... at early developmental stages (weeks 4 and 5) and decreased levels at the late stages

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

HAT3 ... we found that expression in ... rev5 ... maintained at a higher level towards the onset of senescence (weeks 5 and 6), whereas expression levels are dropping rapidly in wild-type plants

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

mRNA expression levels of SENESCENCE ASSOCIATED GENE 12 (SAG12) ... were significantly reduced at the late developmental stages in ... rev5

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

vascular expression pattern of REV

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

AT5G47180 ... Expression of the third group of genes is also altered at various time points in wrky53 ... compared with Col-0, but in all lines the transcriptional increase during senescence is diminished

Xie Y, Huhn K, Brandt R, Potschin M, Bieker S, Straub D, Doll J, Drechsler T, Zentgraf U, Wenkel S - REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis

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  • Gene expression

in pgm2/3 lines. In contrast PGM1 was somewhat up-regulated

Malinova I, Kunz HH, Alseekh S, Herbst K, Fernie AR, Gierth M, Fettke J - Reduction of the cytosolic phosphoglucomutase in Arabidopsis reveals impact on plant growth, seed and root development, and carbohydrate partitioning

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  • Gene expression

PGM3 ... cytosolic isoforms

Malinova I, Kunz HH, Alseekh S, Herbst K, Fernie AR, Gierth M, Fettke J - Reduction of the cytosolic phosphoglucomutase in Arabidopsis reveals impact on plant growth, seed and root development, and carbohydrate partitioning

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  • Gene expression

In native PAGE the total PGM activity was resolved in three distinct bands of activity, the fastest moving band represented the plastidial PGM (PGM1), whereas the slowest moving band represented PGM3 (At1g23190) and the intermediate band PGM2 (At1g70730).

Malinova I, Kunz HH, Alseekh S, Herbst K, Fernie AR, Gierth M, Fettke J - Reduction of the cytosolic phosphoglucomutase in Arabidopsis reveals impact on plant growth, seed and root development, and carbohydrate partitioning

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  • Gene expression

In native PAGE the total PGM activity was resolved in three distinct bands of activity, the fastest moving band represented the plastidial PGM (PGM1), whereas the slowest moving band represented PGM3 (At1g23190) and the intermediate band PGM2 (At1g70730).

Malinova I, Kunz HH, Alseekh S, Herbst K, Fernie AR, Gierth M, Fettke J - Reduction of the cytosolic phosphoglucomutase in Arabidopsis reveals impact on plant growth, seed and root development, and carbohydrate partitioning

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  • Gene expression

In native PAGE the total PGM activity was resolved in three distinct bands of activity, the fastest moving band represented the plastidial PGM (PGM1), whereas the slowest moving band represented PGM3 (At1g23190) and the intermediate band PGM2 (At1g70730).

Malinova I, Kunz HH, Alseekh S, Herbst K, Fernie AR, Gierth M, Fettke J - Reduction of the cytosolic phosphoglucomutase in Arabidopsis reveals impact on plant growth, seed and root development, and carbohydrate partitioning

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  • Gene expression

PGM2 ... cytosolic isoforms

Malinova I, Kunz HH, Alseekh S, Herbst K, Fernie AR, Gierth M, Fettke J - Reduction of the cytosolic phosphoglucomutase in Arabidopsis reveals impact on plant growth, seed and root development, and carbohydrate partitioning

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  • Gene expression

We then examined the tissue-specific expression of OSR2 using the T3 independent transgenic plants carrying an OSR2 promoter:β-glucuronidase (proOSR2:GUS) construct ... Careful examination of GUS expression in developing first leaves showed that weak GUS signal was detected at the juvenile stage, while abundant GUS staining was observed when a leaf was undergoing expanding growth. Subsequently, the GUS signal was almost disappeared in fully-expanded leaves

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

We then examined the tissue-specific expression of OSR2 using the T3 independent transgenic plants carrying an OSR2 promoter:β-glucuronidase (proOSR2:GUS) construct ... weak or nearly absent GUS signals were observed in juvenile leaves

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

OSR2 ... epi-brassinolide ... induction was disrupted in the BR signaling mutants ... bin2

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

As the three previously-identified OSR genes are known to be differentially responsive to various hormones [17],[23],[31], we also investigated the transcriptional regulation of OSR2 by plant hormones. Interestingly, the qRT-PCR analysis of seedlings treated with various hormones revealed that, similar to ARL, OSR2 was induced by epi-brassinolide

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

We then examined the tissue-specific expression of OSR2 using the T3 independent transgenic plants carrying an OSR2 promoter:β-glucuronidase (proOSR2:GUS) construct. In two-week-old seedlings ... abundant expression was also detected in the cotyledons

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

We then examined the tissue-specific expression of OSR2 using the T3 independent transgenic plants carrying an OSR2 promoter:β-glucuronidase (proOSR2:GUS) construct. In two-week-old seedlings, high GUS expression was observed in the organs or organ regions where active cell expansion and elongation were occurring, such as the upper parts of leaves

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

To explore whether or not OSR2 is functional during organogenesis, we initially monitored OSR2 expression in various organs with qRT-PCR analysis. As shown in Figure 1A, OSR2 was expressed primarily in the expanding organs, including leaf, inflorescence, and flower

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

OSR2 ... epi-brassinolide ... induction was disrupted in the BR signaling mutants bri1-6

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

We then examined the tissue-specific expression of OSR2 using the T3 independent transgenic plants carrying an OSR2 promoter:β-glucuronidase (proOSR2:GUS) construct ... weak or nearly absent GUS signals were observed in ... shoot

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

Since the three previously-identified OSR members were known to be ER-localized [31], we further examined the cellular localization of OSR2 in leaf epidermal cells of proOSR2:OSR2-GFP transgenic plants. Unlike other OSR proteins, the OSR2-GFP fusion protein signal was detected in the plasma membrane (Additional file 1: Figure S1D), indicating that OSR2 is plasma membrane-localized

Qin Z, Zhang X, Zhang X, Feng G, Hu Y - The Arabidopsis ORGAN SIZE RELATED 2 is involved in regulation of cell expansion during organ growth

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  • Gene expression

The KAN1 gene was also expressed at high levels in the drl1-101 mutant relative to the WT

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

The YAB gene family was expressed at high levels in drl1-101 mutant leaves relative to WT leaves

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

ARGOS ... not changed in the drl1-101 mutant relative to the WT

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

KNAT6 ... The expression levels of the class-I KNOX genes in the shoot apex were lower in drl1-101 than in the WT

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

The YAB gene family was expressed at high levels in drl1-101 mutant leaves relative to WT leaves (Fig. 6B). The YAB2 gene exhibited the strongest expression of the YAB gene family members in drl1-101 mutant leaves

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

ANT ... not changed in the drl1-101 mutant relative to the WT

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

CYCD3;1 expression was increased ... in the drl1-101 mutant relative to the WT

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

KNAT2 ... The expression levels of the class-I KNOX genes in the shoot apex were lower in drl1-101 than in the WT

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

KNAT1 ... The expression levels of the class-I KNOX genes in the shoot apex were lower in drl1-101 than in the WT

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

The expression levels of the class-I KNOX genes in the shoot apex were lower in drl1-101 than in the WT (Fig. 6A). In particular, STM expression was undetected in drl1-101

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

The YAB gene family was expressed at high levels in drl1-101 mutant leaves relative to WT leaves

Jun SE, Cho KH, Hwang JY, Abdel-Fattah W, Hammermeister A, Schaffrath R, Bowman JL, Kim GT - Comparative analysis of the conserved functions of Arabidopsis DRL1 and yeast KTI12

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  • Gene expression

the expression of ... nad3 ... was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

the expression of ... nad4 ... was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

We showed that the 35:SLO3-GFP construct was able to complement the slo3 mutant (Fig. 4A), indicating that the SLO3-GFP fusion protein is functional in planta. Confocal microscopy was used to observe the GFP fluorescent signals in the roots of these complemented plants. MitoTracker orange was used to stain the roots as a control for mitochondrial localization. In the root hair of a 35:SLO3-GFP-complemented line, the green fluorescent signals colocalized with the MitoTracker orange fluorescent signals (Fig. 4B). Similar results were observed in root epidermal cells ... These results suggest that the SLO3-GFP fusion protein is localized to the mitochondrion

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

The Arabidopsis nad7 gene contains four introns, and the length of intron 2 is 1,063 bp. RT-PCR analysis with primers that would amplify the 1,185-bp full-length nad7 cDNA in the wild type revealed that the majority of nad7 transcripts in the slo3 mutant were about 2.2 kb (Fig. 6A). Sequencing analysis confirmed that the 2.2-kb products were the unspliced form of the nad7 transcript retaining the entire intron 2 (Fig. 6B). By contrast, fully processed nad7 transcripts were the predominant forms present in wild-type and complemented plants (Fig. 6, A and B). These results further confirmed that the splicing of nad7 intron 2 was severely impaired in the slo3 mutant. Sequencing analysis of these RT-PCR products also allowed us to compare the editing status of fully processed and intron 2-containing nad7 transcripts in the wild type and slo3, respectively. The editing of all sites located in the exons of nad7 was not affected in the slo3 mutant (Fig. 6B; data not shown). It has been shown that RNA editing in trans-introns is involved in the splicing reaction in wheat (Triticum aestivum) mitochondria (Farré et al., 2012). Interestingly, Arabidopsis nad7 intron 2 contains an editing site near the junction of intron 2-exon 3. Although the nad7 intron 2 is not a trans-intron, it is still of interest to know if the status of this particular editing site is affected in the slo3 mutant. We used RT-PCR to amplify the intron 2-containing nad7 transcripts in the wild type with primers located in exon 2 and exon 3 (Supplemental Fig. S5). Bulk sequencing analysis of these unspliced transcripts revealed that the C-to-U editing of the nad7 intron 2 editing site was not affected in the slo3 mutant (Supplemental Fig. S5). Thus, the lack of nad7 intron 2 splicing was not due to the absence of an RNA editing factor rather than a splicing factor in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

the expression of ... nad6 ... was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

For RNA splicing analysis, we used quantitative RT-PCR assays to examine the ratio of spliced to unspliced RNA for each mitochondrial intron in wild-type, slo3, and 35S:SLO3-GFP-complemented plants. Of the 23 introns examined, the splicing efficiency of nad7 intron 2 was dramatically decreased in the slo3 mutant, which was restored in the complemented plants (Fig. 5A). The quantitative RT-PCR results also revealed that the reduced slo3/wild-type ratio for nad7 intron 2 splicing was due to both an increase in unspliced and a decrease in spliced nad7 transcripts in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

the expression of ... nad4L ... was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

the expression of ... nad9 was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

the expression of ... nad2 ... was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

the expression of nad1 ... was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

the expression of ... nad5 ... was not affected in the slo3 mutant

Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH - The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis

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  • Gene expression

ANT ... expression was not detected in mature rosette leaf (Figure 76), young rosette, or cauline leaf tissue (data not shown)

Klucher KM, Chow H, Reiser L, Fischer RL - The AINTEGUMENTA gene of Arabidopsis required for ovule and female gametophyte development is related to the floral homeotic gene APETALA2

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  • Gene expression

Later, at the torpedo stage, ANT is expressed in cells in an internal zone extending the length of each cotyledon (Figure 7N). These may include procambial cells that will ultimately give rise to the vasculature. The embryonic hypocotyl and root show no labeling.

Elliott RC, Betzner AS, Huttner E, Oakes MP, Tucker WQ, Gerentes D, Perez P, Smyth DR - AINTEGUMENTA, an APETALA2-like gene of Arabidopsis with pleiotropic roles in ovule development and floral organ growth

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  • Gene expression

After fertilization, ANT expression shifts to the embryo. There appear to be two regions of expression in globular-stage embryos, presumably in cells that will give rise to the cotyledons

Elliott RC, Betzner AS, Huttner E, Oakes MP, Tucker WQ, Gerentes D, Perez P, Smyth DR - AINTEGUMENTA, an APETALA2-like gene of Arabidopsis with pleiotropic roles in ovule development and floral organ growth

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  • Gene expression

ANT is expressed ... in the primordia of ... cotyledons

Elliott RC, Betzner AS, Huttner E, Oakes MP, Tucker WQ, Gerentes D, Perez P, Smyth DR - AINTEGUMENTA, an APETALA2-like gene of Arabidopsis with pleiotropic roles in ovule development and floral organ growth

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  • Gene expression

When ANT expression was examined ... developing leaves contained two internal zones of expression extending longitudinally down each side (Figure 7P), very similar to that seen in developing sepals (Figure 7D

Elliott RC, Betzner AS, Huttner E, Oakes MP, Tucker WQ, Gerentes D, Perez P, Smyth DR - AINTEGUMENTA, an APETALA2-like gene of Arabidopsis with pleiotropic roles in ovule development and floral organ growth

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  • Gene expression

Root meristems showed no evidence of ANT expression, and neither did mature tissues of roots, stems, and leaves

Elliott RC, Betzner AS, Huttner E, Oakes MP, Tucker WQ, Gerentes D, Perez P, Smyth DR - AINTEGUMENTA, an APETALA2-like gene of Arabidopsis with pleiotropic roles in ovule development and floral organ growth

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  • Gene expression

When ANT expression was examined in young seedlings at the two-leaf stage, the shoot apical meristem contained discrete zones of labeling in its periphery, presumably indicating where leaf primordia would ultimately arise (Figure 70

Elliott RC, Betzner AS, Huttner E, Oakes MP, Tucker WQ, Gerentes D, Perez P, Smyth DR - AINTEGUMENTA, an APETALA2-like gene of Arabidopsis with pleiotropic roles in ovule development and floral organ growth

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  • Gene expression

ANT is expressed ... in the primordia of ... leaves

Elliott RC, Betzner AS, Huttner E, Oakes MP, Tucker WQ, Gerentes D, Perez P, Smyth DR - AINTEGUMENTA, an APETALA2-like gene of Arabidopsis with pleiotropic roles in ovule development and floral organ growth

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  • Gene expression

The strain #1-35-38 ... was specific to ... true (foliage) leaves

Tsukaya H, Uchimiya H - Genetic analyses of the formation of the serrated margin of leaf blades in Arabidopsis: combination of a mutational analysis of leaf morphogenesis with the characterization of a specific marker gene expressed in hydathodes and stipules

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  • Gene expression

The strain #1-35-38, which expresses the marker gene for GUS ... in stipules

Tsukaya H, Uchimiya H - Genetic analyses of the formation of the serrated margin of leaf blades in Arabidopsis: combination of a mutational analysis of leaf morphogenesis with the characterization of a specific marker gene expressed in hydathodes and stipules

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  • Gene expression

The strain #1-35-38 ... was specific to cotyledons

Tsukaya H, Uchimiya H - Genetic analyses of the formation of the serrated margin of leaf blades in Arabidopsis: combination of a mutational analysis of leaf morphogenesis with the characterization of a specific marker gene expressed in hydathodes and stipules

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  • Gene expression

The strain #1-35-38, which expresses the marker gene for GUS ... in ... hydathodes

Tsukaya H, Uchimiya H - Genetic analyses of the formation of the serrated margin of leaf blades in Arabidopsis: combination of a mutational analysis of leaf morphogenesis with the characterization of a specific marker gene expressed in hydathodes and stipules

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  • Gene expression

AGO1 mRNA was detected in all tissues examined

Bohmert K, Camus I, Bellini C, Bouchez D, Caboche M, Benning C - AGO1 defines a novel locus of Arabidopsis controlling leaf development

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  • Gene expression

ROT3 is expressed in all major or- gans, especially in tissues that have high activity of cell division

Kim GT, Tsukaya H, Uchimiya H - The ROTUNDIFOLIA3 gene of Arabidopsis thaliana encodes a new member of the cytochrome P-450 family that is required for the regulated polar elongation of leaf cells

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  • Gene expression

PNH ... Similar to the embryonic pattern, highlevel expression is detected in developing vascular strands

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

PNH ... At torpedo stage, the dark stain in the provascular cells expands up the center of the cotyledons. Light staining appears only adaxial to this stripe of expression in the cotyledons and is still in the SAM and root pole (Fig. 3F). A transverse section through the cotyledon primordia at this stage demonstrates differential expression between their ad- and abaxial sides (Fig. 3G). This pattern is stably maintained through the walking stick stage (Fig. 3H). Transverse sections through a nearly mature embryo reveal dark staining in the procambium of the root-hypocotyl axis, lighter staining in the primary xylem precursor area and a pattern of dark staining in the cotyledons that corresponds to the pattern of vascular strands in the mature cotyledon (Fig. 3I)

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

PNH ... low-level expression is detected in the SAM

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

AGO1 ... A cross-section through the cotyledons of a torpedo stage embryo demonstrates that, unlike PNH mRNA, AGO1 mRNA does not accumulate differentially in the adaxial regions of the cotyledons (Fig. 5E

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

While p0 expresses PNH uniformly (Fig. 4E,F), p1 exhibits some differential expression of PNH along the ad/abaxial dimension (Fig. 4B,D,H) indicating that by the p1 stage the primordium has acquired polarity in the radial dimension. By the p2 stage, outgrowth from the SAM is conspicuous and differential PNH expression is more distinct

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

After germination, PNH expression persists in the vegetative meristem

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

The AGO1 transcript is expressed as early as the globular stage (Fig. 5A). While PNH mRNA accumulation is detectable at two levels, AGO1 message is evenly distributed throughout the embryo proper and is present in the suspensor (Fig. 5B). This pattern continues throughout embryogenesis (Fig. 5B-D)

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

PNH ... low-level expression is detected in the ... adaxial leaf domains

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

in seedlings the AGO1 transcript is evenly distributed throughout the ... leaf primordia

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

PNH ... At the globular stage, the provascular cells stain intensely, while the protoderm and lenticular cell stain lightly and no stain is detected in the lower protoderm

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

PNH ... By early heart stage, the lighter stain spans the cells expected to give rise to the adaxial sides of the cotyledons and the SAM, and is in the derivatives of the lenticular cell in the root pole (Fig. 3E). The boundary between lightly staining and non-staining cells bisects the cotyledon primordia along their ad/abaxial axis (Fig. 3E-G, arrows

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

in seedlings the AGO1 transcript is evenly distributed throughout the SAM

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

PNH mRNA accumulation was examined on a northern blot using the pKL3 probe, which detects a single 3.6 kb transcript in roots, stems, leaves, siliques and inflorescences (data not shown

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

PNH message is evenly distributed throughout the embryo proper until the dermatogen stage, when staining appears lighter in the protoderm (Fig. 3B).

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

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  • Gene expression

In the embryo, PNH mRNA is detected by the four-cell stage when accumulation is found in the embryo proper and there is light staining in the uppermost cell of the suspensor

Lynn K, Fernandez A, Aida M, Sedbrook J, Tasaka M, Masson P, Barton MK - The PINHEAD/ZWILLE gene acts pleiotropically in Arabidopsis development and has overlapping functions with the ARGONAUTE1 gene

Visit the PubMed Article