Abstract: Upon perception of BRs, signals of BRI1/BAK1 receptor complex are transmitted through a phosphorylation cascade that includes both changes in gene expression and rapid growth induction responses that involve the V-ATPase.These pathways act separately to affect cell expansion processes.This review focuses on recent progresses in the studies of the gene expression regulation by BRs, BRs signaling and cell expansion in plant, and discusses the unsolved issues.

Key words: Brassinosteroids, signaling, cell expansion, gene expression

摘要： BRI1/BAK1复合体感知油菜素类固醇(BR)后,通过基因表达变化和涉及V-ATPase的快速生长诱导反应的磷酸化级联放大作用传递信号,并影响细胞增殖增长过程。本文就植物中BR调节基因表达及其信号转导与细胞增殖作一综合介绍,并对存在的问题进行探讨。

关键词: 油菜素类固醇, 信号转导, 细胞增殖, 基因表达