小分子热激蛋白在植物应对高温胁迫中的作用  

Role of small molecule heat shock proteins in plants’ response to high temperature stress

作　　者：徐彤 王英琪 李渊 安本泽 蒋敏[2] 杨文飞[3] 吴云飞 XU Tong;WANG Yingqi;LI Yuan;ANSAH Ebenezerottopah;JIANG Min;YANG Wenfei;WU Yunfei(College of Bioscience and Biotechnology,Yangzhou University,Yangzhou 225009,China;Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Agricultural College of Yangzhou University,Yangzhou 225009,China;Huaiyin Institute of Agricultural Sciences in Xuhuai Region of Jiangsu,Huai’an 223001,China)

机构地区：[1]扬州大学生物科学与技术学院,江苏扬州225009 [2]江苏省作物基因组学和分子育种重点实验室/扬州大学农学院,江苏扬州225009 [3]江苏徐淮地区淮阴农业科学研究所,江苏淮安223001

出　　处：《江苏农业学报》2024年第7期1343-1350,共8页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省作物基因组学与分子遗传学重点实验室开放基金项目(PL202302);江苏省大学生创新创业训练计划项目(202311117053Z)。

摘　　要：小分子热激蛋白(sHSPs)是一类不依赖于腺嘌呤核苷三磷酸并具有分子伴侣功能的功能保守型蛋白质。sHSPs在植物受到高温胁迫时产生的热激反应中尤为重要,通过防止错误蛋白质的热集聚、与其他热激蛋白互作,促使错误蛋白质被降解或重新折叠,进而帮助植株响应高温。同时,sHSP的表达受到热休克元件、热休克转录因子、长链非编码RNA(lncRNA)、小分子RNA(miRNA)及一些植物激素的调控。本文总结了植物sHSPs结构功能、调控机制及相关研究进展,着重阐述了植物sHSPs在高温胁迫下的响应机制,为研究植物响应高温的机制提供参考。Small molecule heat shock proteins(sHSPs)are a type of functionally conserved proteins that do not depend on ATP and have molecular chaperone function.sHSPs are particularly important in the heat shock response of plants under high temperature stress.By preventing the thermal aggregation of error proteins and interacting with other heat shock proteins,sHSPs promoted the degradation or refolding of error proteins,thereby helped plants to respond to high temperatures.Besides,the expression of sHSP was regulated by heat shock elements,heat shock transcription factors,long non-coding RNA(lncRNA),micro RNA(miRNA)and some plant hormones.This article reviewed the gene structure,function,regulatory mechanism and related research progress of plant sHSPs,focused on the response mechanism of plant sHSPs under high temperature stress,so as to provide a reference for studying the mechanism of plants’response to high temperature.

关 键 词：小分子热激蛋白 高温胁迫 激素 植物 

分 类 号：Q946.1[生物学—植物学]