植物脱水素响应逆境胁迫调控机制研究进展  

Research Progress on Regulation Mechanism of Plant Dehydrin in Response to Stresses

作　　者：乔美玲 冀照君[1] 袁晓霞[1] 石千卉 杨冰洁 高梦哲 QIAO Mei-ling;JI Zhao-jun;YUAN Xiao-xia(College of Life Sciences and Food Engineering,Inner Mongolia Minzu University,Tongliao,Inner Mongolia 028000)

机构地区：[1]内蒙古民族大学生命科学与食品学院,内蒙古通辽028000

出　　处：《安徽农业科学》2024年第13期1-3,10,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(32170020);内蒙古自治区科技计划项目(2021GG0005);内蒙古自治区自然科学基金项目(2022QN03030);内蒙古自治区蓖麻育种重点实验室开放基金项目(MDK2016034);内蒙古自治区高等学校青年科技英才支持计划资助项目(NJYT-19-A10)。

摘　　要：脱水素(dehydrin,简称DHN)是一类广泛存在于植物体内响应逆境胁迫的亲水性蛋白,对逆境中农作物健康生长和果实积累至关重要。内蒙古地区瘠薄土壤中营养相对匮乏,盐碱化较为严重,植物经长期自然进化获得了分泌脱水素的功能,能够通过调控体内水分的蒸腾流失来稳定细胞质膜的结构,进而适应土壤干旱、高盐、高温等胁迫环境。因此,提高脱水素分泌量农作物品种的选育是实现可持续农业的重要途径。综述了脱水素蛋白的分子结构及其在不同逆境中的调控机制,以期为后续高产抗逆新品种农作物培育研究提供借鉴。Dehydrin(DHN),a kind of hydrophilic proteins involved in the responses to various stresses,is essential for healthy growth and fruit accumulation of the crops.The barren soil in Inner Mongolia is nutritional deficiency relatively,and the salinization is more serious.Plants have acquired the function of secreting dehydrin for the long-term evolution and development,that could stabilize the structure of plasma membrane by regulating the water transpiration rate,to adapt to the soil stress environment such as drought,high salt and high temperature.Therefore,the breeding of crop varieties secreted more dehydrin was an important way to achieve sustainable agriculture.The molecular structure of dehydrin protein and the regulation mechanism in different stresses reviewed here would provide some references for the further researches on the cultivation of new crops with high yields and stress resistances.

关 键 词：脱水素 亲水性蛋白 胁迫 调控机制 

分 类 号：Q945.78[生物学—植物学]