植物学报 ›› 2015, Vol. 50 ›› Issue (5): 539-548.DOI: 10.11983/CBB15076

• 特邀综述 • 上一篇    下一篇

独脚金内酯调控水稻分蘖的研究进展

黎舒佳, 高谨, 李家洋, 王永红*()   

  1. 中国科学院遗传与发育生物学研究所植物基因组学国家重点实验室, 北京 100101
  • 收稿日期:2015-05-18 接受日期:2015-07-02 出版日期:2015-09-01 发布日期:2015-10-09
  • 通讯作者: 王永红
  • 作者简介:

    ? 共同第一作者

  • 基金资助:
    国家自然科学基金(No.31161130535)

Advances in Regulating Rice Tillers by Strigolactones

Shujia Li, Jin Gao, Jiayang Li, Yonghong Wang*   

  1. State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2015-05-18 Accepted:2015-07-02 Online:2015-09-01 Published:2015-10-09
  • Contact: Wang Yonghong
  • About author:

    ? These authors contributed equally to this paper

摘要: 水稻(Oryza sativa)作为世界上最主要的粮食作物之一, 对其主要农艺性状调控机理的研究具有重要意义。分蘖是水稻生长发育过程中一种特殊的分枝, 它不仅是与水稻产量密切相关的重要农艺性状, 也是揭示高等植物侧枝生长发育机制的理想模型。独脚金内酯(strigolactone, SL)是一类新型植物激素, 能够抑制植物分枝的生长发育。近年来, 关于SL合成与信号在调控水稻分蘖方面的研究取得了重要进展, 但对其信号转导的下游组分的研究还相对匮乏。该文综述了SL合成途径、信号途径及下游靶基因调控水稻分蘖的研究进展, 并与在拟南芥(Arabidopsis thaliana)、豌豆(Pisum sativum)和矮牵牛(Petunia hybrida)中的研究进行了比较, 同时还对如何挖掘SL途径的新组分进行了讨论。

Abstract: Rice (Oryza sativa) is the staple food for more than half of the world’s population. Elucidating the molecular mechanisms underlying rice agronomic traits plays a critical role in improving rice grain yield. Tillers, specialized branches of rice, are key agronomic traits that determine grain production and are an ideal model system for understanding the regulatory mechanisms that regulate shoot branching of higher plants. Strigolactones (SLs) are newly discovered plant hormones that inhibit shoot branching. Although remarkable progress has been made in SL biosynthesis and signaling, the signaling targets remain largely unknown. Here, we summarize the recent progress in SL biosynthetic and signaling pathways, most based on rice tillering. We discuss strategies for identifying new components in the SL pathway.