谷胱甘肽转移酶在植物抵抗非生物胁迫方面的角色  

Roles of Glutathione S-transferase in Plant Tolerance to Abiotic Stresses

作　　者：张雪[1] 陶磊[1] 乔晟[1] 杜秉昊 郭长虹[1] 

机构地区：[1]哈尔滨师范大学生命科学与技术学院黑龙江省分子细胞遗传与遗传育种重点实验室,哈尔滨150025

出　　处：《中国生物工程杂志》2017年第3期92-98,共7页China Biotechnology

基　　金：国家"863"计划(2013AA102607);国家自然科学基金(31470571);黑龙江省科技攻关项目(GA15B105-1);国家转基因生物新品种培育科技重大专项(2016ZX08004-002)资助项目

摘　　要：非生物胁迫因子如高盐、干旱、低温、重金属污染等严重影响植物的生长和繁殖。植物进化出一系列包括各种酶类物质的系统抵抗逆境所带来的氧化伤害。谷胱甘肽转移酶(glutathione S-transferase,GST,EC 2.5.1.18)是由多种功能的蛋白质组成的超家族,在植物遭受高盐、干旱、低温胁迫时,GSTs可清除活性氧,保护植物细胞膜结构和蛋白质活性。对谷胱甘肽转移酶在植物抵御非生物胁迫中的作用进行综述,为今后利用基因工程育种提供理论依据。stresses,such as high salt,drought,low temperature and heavy metal pollution,have seriously affected the growth and reproduction of plants. Meanwhile,plants have evolved a series of various enzymes system against oxidative damage caused by abiotic and biotic stresses. Glutathione S-transferase,which comprise a large superfamily of multifunctional protein,can scavenge reactive oxygen species and protect plant cell membrane structure and protein activity when plants were subjected to high salt,drought and low temperature stresses. The role of GST in plant response to abiotic stress is reviewed,and this will provide valuable information for the plant genetic engineering in the future.

关 键 词：非生物胁迫 谷胱甘肽转移酶 植物 氧化伤害 

分 类 号：Q81[生物学—生物工程]