2024年12月10日 星期二
独脚金内酯调控植物侧枝发育的分子机制及其与生长素交互作用的研究进展
Research progress on molecular mechanism of strigolactones in regulating of plant lateral shoot development and its interaction with auxin
2013年 第22卷 第4期 页码[98-104]    下载全文[1MB]  
摘要

对独脚金内酯(strigolactones,SLs)调控植物侧枝发育的分子机制及其与生长素相互作用的相关研究结果进行了总结和归纳,在此基础上提出今后的重点研究方向。相关的研究结果显示:在拟南芥[Arabidopsis thaliana(Linn.) Heynh.]、豌豆(Pisum sativum Linn.)和水稻(Oryza sativa Linn.) 等植物多枝突变体中SLs 作为可转导信号参与侧枝发育的分子调控,从这些植物中已克隆获得参与SLs 生物合成及信号应答途径的一些基因。作为一种植物激素,SLs 在侧枝发育调控网络中与生长素相互作用;腋芽发育与其中生长素的输出密切相关, SLs 通过调控芽中生长素的输出间接抑制腋芽发育和侧枝生长,而生长素则在SLs 生物合成中起调节作用。

Abstract

The related research results about molecular mechanism of strigolactones (SLs) in regulating of plant lateral shoot development and interactions between SLs and auxin were summarized and induced, and on these bases, key research directions in future were put forward. The related research results show that taking as a transduced signal, SLs are involved in molecular regulation of lateral shoot development of high branching mutants of Arabidopsis thaliana (Linn.) Heynh., Pisum sativum Linn. and Oryza sativa Linn., etc, and some genes involved in biological synthesis and signal response ways of SLs are also cloned from these species. Taking as a phytohormone, SLs interacts with auxin in regulatory network of lateral shoot development. The axillary bud development closely relates to its auxin output, while SLs indirectly inhibits axillary bud development and lateral shoot growth through controlling auxin output in bud, and auxin plays a regulatory effect in strigolactones biosynthesis.

关键词独脚金内酯; 腋芽发育; 侧枝生长; 分子调控; 生长素输出; 相互作用
Key wordsStrigolactones (SLs); axillary bud development; lateral shoot growth; molecular regulation; auxin output; interaction
作者高雨1, 李颖1, 谢寅峰1,刘颖坤2
所在单位1. 南京林业大学森林资源与环境学院, 江苏南京210037; 2. 浙江农林大学林业与生物技术学院, 浙江临安311300
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基金项目江苏省科技支撑计划项目(BE2012442); 江苏高校优势学科建设工程资助项目(PAPD); 浙江省重中之重林学一级学科开放基金资助项目(KF201305)