外源GSH对盐胁迫下水稻叶绿体活性氧清除系统的影响

被引:16
作者
华春
王仁雷
刘友良
机构
[1] 淮阴师范学院生物系,淮阴师范学院生物系,南京农业大学农业部作物生长调控重点实验室 江苏淮安,江苏淮安
[2] 南京农业大学农业部作物生长调控重点实验室,南京,南京
关键词
水稻; 盐胁迫; 叶绿体; GSH; 活性氧清除系统;
D O I
暂无
中图分类号
Q945 [植物生理学];
学科分类号
0903 ;
摘要
研究了外源GSH对盐胁迫下耐盐性不同的水稻品种Pokkali(耐盐 )和Peta(盐敏感 )叶绿体中抗氧化酶活性和抗氧化剂含量的影响。结果表明 :盐胁迫下 ,外源GSH可以提高水稻叶绿体中活性氧清除系统中SOD、APX、GR的活性以及AsA、GSH的含量 ,降低叶绿体中H2 O2 和MDA的含量 ,从而降低了叶绿体膜脂过氧化的水平 ,缓解盐胁迫对叶绿体膜的伤害。外源GSH对盐胁迫下盐敏感品种Peta叶绿体中上述指标增加或减少的幅度大于耐盐品种Pokkali。
引用
收藏
页码:415 / 420
页数:6
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