植物高温信号转导途径研究进展  

High Temperature Signal Transduction Pathways in Plants

作　　者：任卉敏 白蛟腾 刘玉良[1] 郭琳 刘西岗 郑术芝[1] 孙大业[1] REN Huimin;BAI Jiaoteng;LIU Yuliang;GUO Lin;LIU Xigang;ZHENG Shuzhi;SUN Daye(Molecular and Cellular Biology Key Laboratory,Hebei Provincial Research Center for Cellular Biology,Hebei Provincial Collaborative Innovation Center for Cellular Signaling and Environmental Adaptation,Hebei Provincial Key Laboratory of Molecular and Cellular Biology,College of Life Sciences,Hebei Normal University,Hebei Shijiazhuang050024,China)

机构地区：[1]分子与细胞生物学教育部重点实验室,河北省细胞生物学基础学科研究中心,河北省细胞信号和环境适应协同创新中心,河北省分子与细胞生物学重点实验室,河北师范大学生命科学学院,河北石家庄050024

出　　处：《河北师范大学学报（自然科学版）》2024年第5期433-440,共8页Journal of Hebei Normal University：Natural Science

基　　金：国家自然科学基金(32370290);河北师范大学博士(后)基金项目(L2024B58,L2021B18);河北省高水平人才团队建设专项(225A2902D);河北省博士后择优资助项目(B2023003029)。

摘　　要：温度是控制植物生长、发育和地理分布的关键因素.植物整个生命周期都受到环境温度变化的影响.随着工业化革命进程加快,全球变暖日益严重,近几年极端高温天气频繁出现,对农业生产和粮食安全造成严重影响.本团队从上世纪八十年代开始着力于植物高温胁迫的信号传导机制研究,针对植物耐热机制进行长期深入的探究.系统地解析了植物感知高温胁迫的钙离子-钙调素(Ca^(2+)-CaM)热激信号转导途径,揭示了高温引起的植物细胞钙离子原初反应的机制.近年来团队深入拓展表观遗传修饰调控植物耐热机制的研究,发现了多个调控植物耐热性的关键基因和分子开关.团队的系列工作加深了对植物适应高温胁迫环境的分子机制理解,为培育耐热作物品种奠定了理论基础.Temperature is a key factor affecting plant growth,development,and geographical distribution.Plants are affected by changes in ambient temperature throughout their life cycle.With the increase of human activities,global warming has become more severe.Frequent extreme heat events have posed serious challenges to agricultural production,and even threaten global food security.To address this issue,our group has been dedicated to studying the high temperature signaling transduction since the 1980s.After years of continuous exploration,we have systematically elucidated the high temperature signal transduction pathway centered on calcium ion(Ca^(2+))and calmodulin(CaM),and revealed the mechanism of initial Ca^(2+)response in plant cells caused by high temperatures.In recent years,we have further expanded the research on the mechanism of epigenetic modification in regulating plant thermotolerance,and found a number of key genes and molecular switches regulating plant thermotolerance.In summary,our studies have deepened the understanding of the molecular mechanisms of plant adaptation to high temperature environments and provided a theoretical foundation for breeding thermotolerant crop varieties.

关 键 词：热激 高温信号转导途径 钙离子 钙调素 表观遗传修饰 

分 类 号：Q938.8[生物学—微生物学]