植物响应低温胁迫的分子调控机制  

Molecular Regulation Mechanism of Plant Response to Cold Stress

作　　者：成京晋 李浩 早浩龙 黄珍华 海梅荣[1] 范伟[1] Cheng Jingjin;Li Hao;Zao Haolong;Huang Zhenhua;Hai Meirong;Fan Wei(College of Agronomy and Biotechnology,Yunnan Agricultural University,Kunming,650201;College of Resources and Environment,Yunnan Agricultural University,Kunming,650201)

机构地区：[1]云南农业大学农学与生物技术学院,昆明650201 [2]云南农业大学资源与环境学院,昆明650201

出　　处：《分子植物育种》2021年第9期3104-3115,共12页Molecular Plant Breeding

基　　金：云南省重大科技专项(2017ZF004);云南省“万人计划”青年拔尖人才(YNWR-QNBJ-2018-047)共同资助。

摘　　要：低温是限制植物生长发育和地理分布上的主要的环境因子。植物经过长期适应多变的环境温度已经进化出一系列生理和分子机制来抵御低温造成的伤害。近年来,围绕植物是如何感应、传递和调控低温耐受的分子机制研究已经在水稻和拟南芥等模式植物中取得了较大的突破和进展。以低温应答核心组分CBF-COR为中心,本研究系统介绍了植物通过整合低温、昼夜节律、光周期、开花和激素等外部信号以及转录水平、翻译后水平和表观遗传修饰等内部调控来协同应答对低温胁迫响应的分子机制,并探讨了该领域未来的研究方向和重点。Cold stress is a major environmental factor that limits plant growth and development,and geographical distribution.Plants have evolved a series of physiological and molecular mechanisms to protect against low-temperature damage in the long term adaptation to changing environmental temperatures.In recent years,the molecular mechanisms of how plants sense,transduct and regulatelow temperature tolerance have made great breakthrough and progress in model plants such as rice and Arabidopsis.Centered on CBF-COR,this study reviews the molecular mechanism of plant response to low temperature stress by integrating external signals such as low temperature,circadian rhythm,photoperiod,flowering and hormones,as well as internal controls such as transcription level,post translation level and epigenetic modification.The future research direction and focus in this field are discussed.

关 键 词：低温胁迫 信号调控 应答机制 

分 类 号：Q945.78[生物学—植物学]