Related Experiment Video
Updated: Jun 14, 2025

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput
Published on: March 30, 2018
BLA1 Affects Leaf Angles by Altering Brassinosteroid Biosynthesis in Rice (Oryza sativa L.)
Yanli Zhang1,2, Guojun Dong3, Ying Zhang1
1College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
A novel epigenetic pathway regulates brassinosteroids (BRs) in rice. The chromatin remodeler BLA1 controls BR biosynthesis genes BRD1 and D2, impacting rice development.
Area of Science:
- Plant Biology
- Epigenetics
- Molecular Biology
Background:
- Brassinosteroids (BRs) are essential plant hormones regulating rice development.
- The precise regulatory mechanisms of BR biosynthesis enzymes are not fully understood.
Purpose of the Study:
- To elucidate the regulatory mechanism of BR biosynthesis in rice.
- To investigate the role of the CHD3 chromatin remodeler BLA1 in BR biosynthesis.
Main Methods:
- Phenotypic analysis of rice mutants (bla1, brd1, d2).
- Measurement of BR levels and gene expression.
- Yeast one-hybrid and chromatin immunoprecipitation assays.
- Analysis of histone modifications (H3K4me3).
Main Results:
- BLA1 epigenetically modulates the expression of BR biosynthesis genes BRD1 and D2.
- bla1 mutants exhibit altered phenotypes (e.g., increased leaf angle) and elevated BR levels.
- BLA1 directly binds to the promoters of BRD1 and D2, associated with H3K4me3 enrichment.
Conclusions:
- A novel epigenetic pathway involving BLA1 regulates BR biosynthesis in rice.
- BLA1 controls BR levels by modulating BRD1 and D2 expression, influencing rice growth.
- This study reveals an epigenetic mechanism governing plant hormone biosynthesis and development.
More Related Videos
11:33Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer
Published on: October 14, 2022
09:27High Resolution Quantification of Crystalline Cellulose Accumulation in Arabidopsis Roots to Monitor Tissue-specific Cell Wall Modifications
Published on: May 10, 2016
Related Concept Videos
Cell Signaling in Plants
Adaptations that Reduce Water Loss
Light Acquisition
Responses to Drought and Flooding