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植物超氧化物歧化酶(SOD)的研究进展
引用本文:马旭俊,朱大海.植物超氧化物歧化酶(SOD)的研究进展[J].遗传,2003,25(2):225-231.
作者姓名:马旭俊  朱大海
作者单位:1.哈尔滨工业大学生命科学与工程系分子与细胞发育生物学实验室,哈尔滨 150001; 2.哈尔滨医科大学医学遗传学实验室,哈尔滨 150086 1.Laboratory of Molecular and Cellular Developmental Biology,Department of Life Science and Technology,Harbin Institute of Technology,Harbin 150001,China; 2.Department of Medical Genetics,Harbin Medical University,Harbin 150086,China
基金项目:黑龙江省科技厅攻关项目(GA01B101-1)
摘    要:超氧化物歧化酶(superoxide dismutase,SOD)在需氧原核生物和真核生物中广泛存在,是活性氧清除系统中第一个发挥作用的抗氧化酶。植物正常代谢过程和在各种环境胁迫下均能产生活性氧和自由基,活性氧和自由基的积累引起细胞结构和功能的破坏。SOD岐化超氧物阴离子自由基生成过氧化氢和分子氧,在保护细胞免受氧化损伤过程中具有十分重要的作用。本文综述了SOD的功能、在细胞中的分布、表达调控和与植物抗逆性的关系。 Abstract:Superoxide Dismutases (SODs) are ubiquitously expressed antioxidant enzyme in aerobic organisms and catalyze dismutation of superoxide anion to hydrogen and molecular oxygen,the first step in active oxygen-scavenging systems.SODs play a central role in protecting cells against the toxic effects of reactive oxygen species generated during normal cellular metabolic activity or as a result of various environmental stresses.This paper reviews the expression and regulation of Sod genes and their functional role(s) during development and in response to stresses.

关 键 词:表达调控  植物抗逆性  Key  words  功能  活性氧  超氧化物岐化酶  
文章编号:0253-9772(2003)02-0225-07
修稿时间:2002年4月11日

Functional Roles of the Plant Superoxide Dismutase
Xu-Jun Ma,Da-Hai Zhu.Functional Roles of the Plant Superoxide Dismutase[J].Hereditas,2003,25(2):225-231.
Authors:Xu-Jun Ma  Da-Hai Zhu
Affiliation:Laboratory of Molecular and Cellular Developmental Biology, Department of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, China.
Abstract:Superoxide Dismutases (SODs) are ubiquitously expressed antioxidant enzyme in aerobic organisms and catalyze dismutation of superoxide anion to hydrogen and molecular oxygen, the first step in active oxygen-scavenging systems. SODs play a central role in protecting cells against the toxic effects of reactive oxygen species generated during normal cellular metabolic activity or as a result of various environmental stresses. This paper reviews the expression and regulation of Sod genes and their functional role(s) during development and in response to stresses.
Keywords:superoxide dismutase  reactive oxygen species  function  expression regulation  plant tolerance
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