生物钟调控植物生长发育的研究进展  

The molecular networks of circadian clock-regulated plant growth and development

作　　者：张家硕 魏华 王雷 ZHANG Jiashuo;WEI Hua;WANG Lei(Key Laboratory of Plant Molecular Physiology,CAS Center for Excellence in Molecular Plant Sciences,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院植物研究所,植物分子生理学重点实验室,北京100093 [2]中国科学院大学,北京100049

出　　处：《植物生理学报》2022年第1期3-12,共10页Plant Physiology Journal

基　　金：国家自然科学基金(31770287)。

摘　　要：植物生物钟不仅是细胞内部的计时系统,还是调控植物发育可塑性和环境适应性的重要分子基础,主要由输入途径、核心振荡器、输出信号网络等组成,其中生物钟核心振荡器又可分为中心反馈环、早反馈环以及晚反馈环等。同时,生物钟核心振荡器的核心组分通过转录以及转录后水平等多层级调控的方式,调节植物体内输出信号网络,从而在时间维度上协调植物的生长发育和代谢稳态平衡,以及胁迫的应答等。本文主要概述近年来植物生物钟核心组分在调节下游关键事件如下胚轴生长、开花时间、叶片衰老以及非生物胁迫应答等方面的研究进展,并提出生物钟研究领域亟待解决的科学问题,寄望让生物钟领域的研究成果能为未来智慧育种提供理论上的借鉴。Circadian clock system regulates the adaptability of plant growth and development in the diel environmental dynamics, which mainly consists of input pathway, core oscillator and output pathway. The core oscillator is composed of three parts, namely the core loop, morning loop and evening loop respectively, which also interact with each other to form multiple feedback loops. At the same time, they also regulate other output signaling networks in plants through transcriptional as well as post-transcriptional levels to coordinate plant growth, development and response to various stresses. In this review article, we summarize the recent major research progresses of the circadian clock in regulating hypocotyl growth,flowering time, leaf senescence, abiotic stress tolerance, etc. We also discuss the potential issues that need to be solved in the future, which can provide a theoretical basis for crop breeding and new variety improvement by employing the knowledge of circadian clock.

关 键 词：生物钟 生物节律 分子网络 生长发育 

分 类 号：Q945[生物学—植物学]