2002年4月1日 · BZR1 protein accumulates in the nucleus of elongating cells of dark-grown hypocotyls and is stabilized by BR signaling and the bzr1-1D mutation. Our results demonstrate that BZR1 is a positive regulator of the BR signaling pathway that mediates both downstream BR responses and feedback regulation of BR biosynthesis.

A dominant mutation bzr1-1D suppresses BR-deficient and BR-insensitive (bri1) phenotypes and enhances feedback inhibition of BR biosynthesis. BZR1 protein accumulates in the nucleus of elongating cells of dark-grown hypocotyls and is stabilized by …

The brassinosteroid (BR) response transcription factor Brassinazole resistant 1 (BZR1)-mediated BR signalling regulates many specific developmental processes including fruit ripening. Here, we report the effect of 2,4-epibrassinolide (EBR) and BZR1-1D overexpression on carotenoid accumulation and qu …

2018年3月14日 · Consistent with these results, DPI treatment reduced the cell elongation in the BR-activated mutants bzr1-1D and bes1-D mutants grown on the medium containing the BR biosynthesis inhibitor PPZ ...

2012年7月22日 · Constitutive active forms of BZR1, due to either increased dephosphorylation by protein phosphatase 2A (PP2A) (bzr1-1D) or reduced binding by the 14-3-3 proteins (BZR1-S173A), suppress the...

2005年3月11日 · The dominant bzr1-1D mutation increases BZR1 protein accumulation, suppresses the BR-insensitive bri1 and bin2 mutants, and causes insensitivity to the BR biosynthetic inhibitor brassinazole, indicating a positive role for BZR1 in BR signaling.

2012年7月22日 · Genome-wide analysis defined a BZR1-dependent GA-regulated transcriptome, which is enriched with light-regulated genes and genes involved in cell wall synthesis and photosynthesis/chloroplast...

2010年11月16日 · Molecular genetic analyses support a central role of BZR1 in BR regulation of plant development. The dominant bzr1-1D mutation, which stabilizes the BZR1 protein, completely suppresses the de-etiolated phenotype of the null bri1-116 mutant grown in the dark (Wang et al., 2002, Yin et al., 2002) (Figure 1 A).

2013年9月18日 · A dominant Arabidopsis mutant bzr1-1D gene, BZR1-1D, was overexpressed in tomato to evaluate the role of BZR1 in tomato fruit ripening process. The fruits of transformed tomato plants showed dark green shoulder at mature green (MG) stage, increased carotenoid accumulation and enhanced soluble sugar and ascorbic acid contents during ripening.

2021年8月27日 · In the present study, we demonstrated that the interaction of BZR1 and EIN3/EIL1 is a critical link between BR and ET signalling pathways. BR signalling plays critical roles in ET- and EIN3-promoted apical hook development in the dark and cell elongation under light, while ET enhances BR responses.