GSTs 在植物非生物逆境胁迫中的作用

王光勇1, 刘迪秋1,*, 葛锋1, 方松刚1, 田荣欢1, 丁元明2
1 昆明理工大学生命科学与技术学院, 昆明650224; 2 云南出入境检验检疫局, 昆明650228

通信作者:刘迪秋;E-mail: diqiuliu@gmail.com;Tel: 0871-3801956

摘 要:

植物在生长过程中会面临各种各样的胁迫, 为了自我保护, 植物进化出了多种抵御胁迫的策略。植物谷胱甘肽-S-转 移酶(glutathione-S-transferases, GSTs, EC 2.5.1.18)可以催化亲核性的谷胱甘肽(glutathione, GSH)与各种亲电子外源化学物 的结合反应, 降低细胞体内活性氧(reactive oxygen species, ROS)水平, 从而减轻非生物胁迫对植物的损伤。本文主要概述了 GSTs 在植物抗非生物胁迫的作用。

关键词:谷胱甘肽-S-转移酶; 非生物胁迫; 转基因植物

收稿:2010-06-11   修定:2010-07-05

资助:云南省应用基础研究面上项目(2008ZC036M)和云南省教育厅科学研究基金(08Y0088)。

The Role of GSTs in Abiotic Stress Resistance in Plants

WANG Guang-Yong1, LIU Di-Qiu1,*, GE Feng1, FANG Song-Gang1, TIAN Rong-Huan1, DING Yuan-Ming2
1Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, China; 2Yunnan EntryExit Inspection and Quarantine, Kunming 650228, China

Corresponding author: LIU Di-Qiu; E-mail: diqiuliu@gmail.com; Tel: 0871-3801956

Abstract:

Plant growth and development is affected by various stress factors. For self-protection, they have evolved a number of strategies to resist stresses. Glutathione-S-transferases (GSTs, EC 2.5.1.18) can catalyze the conjugation of various electrophiles with GSH and decreased cell reactive oxygen species (ROS) level, which protect plant against the abiotic stress. This paper summarized the role of GSTs in abiotic stress resistance in plants.

Key words: glutathione-S-transferases; abiotic stress; transgenic plant

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