安徽农业科学2011，Vol.39Issue(9)：5161-5163,3.
一氧化氮对汞胁迫下小麦种子萌发及抗氧化代谢的影响
Effects of Nitric Oxide on Germination and Antioxidant Metabolism of Wheat Seeds under Hg2+ Stress
摘要
Abstract
[ Objective] The aim was to study the effects of Nitric oxide (NO) on wheat seeds germination and its roles in reducing the oxidative stress. [ Method ] Different concentrations of HgCI2 was used to simulate the Hg2+ stress to treat wheat seeds, the hemi-inhibitory concentration of Hg2+ stress was achieved when the germination rate of wheat seeds reached 50％ of the control; under the SNP pretreatment for 12 h and hemi-inhibitory concentration of Hg2+ stress, the germination status of wheat seeds, the change of its protease and amylase activities, as well as the change of its CAT activity, proline and MDA content were studied. [ Result] SNP could obviously the germination of wheat seeds under Hg2 + stress, and the amylase and prolease activities of the SNP pretreated seeds were significantly higher than that of the control; SNP pretreatment could obviously increase the CAT activity of wheat seeds under Hg2+ stress, improve the proline level and reduce MDA content.[ Conclusion ] SNP could promote the germination of wheat seeds and growth of wheat seedlings as well as improve its antioxidant capacity.关键词
一氧化氮/汞胁迫/小麦种子萌发/抗氧化Key words
Nitric oxide/Hg2+ stress/Wheat seed germination/Antioxidation分类
农业科技引用本文复制引用
黄忠勤,杨峰,樊继德,周兴根,王基华,熊伟..一氧化氮对汞胁迫下小麦种子萌发及抗氧化代谢的影响[J].安徽农业科学,2011,39(9):5161-5163,3.基金项目
江苏省科技成果转化专项(BA2008032) （BA2008032）
江苏省农业科技自主创新项目[CX(09)635]. （09）
