生物
拟南芥
基因
表型
拟南芥
信号转导
遗传学
生物合成
等位基因
细胞生物学
突变体
作者
Jiaxing An,Zhongxin Guo,Xiaoping Gou,Jia Li
出处
期刊:Plant Signaling & Behavior
[Informa]
日期:2011-08-01
卷期号:6 (8): 1117-1118
被引量:15
标识
DOI:10.4161/psb.6.8.15889
摘要
Brassinosteroids (BRs) are a group of major phytohormones playing critical roles in plant growth and development. Within the last two decades, key events of BR biosynthesis and signal transduction have been gradually elucidated. The detailed molecular mechanisms controlling bioactive levels of BRs, however, are not fully understood. TCP1 is a member of class II TCP proteins in Arabidopsis thaliana. The role of TCP1 in BR biosynthesis was discovered by an activation tagging analysis aiming to screen for genetic suppressors of an intermediate allele named bri1-5 of the BR receptor gene BRI1. Overexpression of TCP1 partially suppresses the defective phenotypes of bri1-5 via direct up-regulation of DWF4, one of the target genes of TCP1.
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