植物学报 ›› 2010, Vol. 45 ›› Issue (05): 615-631.DOI: 10.3969/j.issn.1674-3466.2010.05.012

• 专题论坛 • 上一篇    下一篇

H2O2-NOX系统: 一种植物体内重要的发育调控与胁迫响应机制

周丛义1, 吴国利1, 段壮芹1, 吴丽丽2, 高永生2, 陈坤明3*   

  1. 1浙江大学农业与生物技术学院作物科学研究所, 杭州 310029;
    2中国计量学院生命科学学院, 杭州 310018
    3西北农林科技大学生命科学学院, 杨凌 712100
  • 收稿日期:2009-10-23 修回日期:2009-12-25 出版日期:2010-09-01 发布日期:2010-09-20
  • 通讯作者: 陈坤明

H2O2-NOX System: an Important Mechanism for Developmental Regulation and Stress Response in Plants

Congyi Zhou1, Guoli Wu1, Zhuangqin Duan1, Lili Wu2, Yongsheng Gao2, Kunming Chen3*   

  1. 1Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China

    2College of Life Sciences, China Jiliang University, Hangzhou 310018, China

    3College of Life Sciences, Northwest A & F University, Yangling 712100, China
  • Received:2009-10-23 Revised:2009-12-25 Online:2010-09-01 Published:2010-09-20
  • Contact: Chen Kun-Ming

摘要: 以H2O2为中心的活性氧(reactive oxygen species, ROS)的产生是动植物发育与响应外界生物与非生物胁迫的普遍 特征, 其在生理和分子2个水平上调控植物的发育和对外界胁迫的响应, 并与一系列信号转导过程相关联。作为关键的ROS产生酶, 质膜NADPH氧化酶(plasma membrane NADPH oxidase, PM-NOX)在植物应对各种生物和非生物胁迫中具有重要作用, 被广泛认为是胁迫条件下植物细胞ROS产生并积累的主要来源。该文简要综述了近年来人们在植物细胞ROS产生、清除、生理功能以及PM-NOX酶的结构特征与功能等方面的研究进展, 并认为H2O2-NOX系统是一种植物体内普遍存在的重要发育调控与胁迫响应机制。

Abstract: An oxidative burst of reactive oxygen species (ROS) expression is a common response of plants to developmental events and to a number of biotic and abiotic stresses. ROS production physiologically and molecularly regulates development and the stress response and has been proposed as an intracellular second messenger mediating the induction of systematic acquired resistance and the control and regulation of a series of biological processes such as growth, cell cycle, programmed cell death and hormone signaling. The molecular and physiological data indicate functional and mechanistic similarities between the animal and plant NADPH oxidase (NOX), and this enzyme has been considered a major source of ROS production in all life kingdoms. The functions of plasma membrane NOX (PM-NOX) are tightly associated with the production and accumulation of ROS in plants. Here, we report on recent findings in the production and scavaging roles of ROS and the structural features and functions of PM-NOX in plants. The H2O2-NOX system may be an important mechanism for developmental regulation and stress response in plants.