Effect of Exogenous Nitric Oxygen on Lipid Peroxidation and Chlorophyll Fluorescence in Wheat Leaves under High Temperature and Strong Irradiance Stress  

外源NO对高温强光胁迫下小麦叶片膜脂过氧化和叶绿素荧光的影响(英文)

作　　者：杨亚军[1] 李利红[2] 赵会杰[3] 马培芳[2] 张超男[1] 

机构地区：[1]河南农业大学资源与环境学院,河南郑州450002 [2]郑州牧业工程高等专科学校,河南郑州450002 [3]河南农业大学生命科学学院,河南郑州450002

出　　处：《Agricultural Science & Technology》2008年第3期25-30,共6页农业科学与技术（英文版）

基　　金：国家自然科学基金项目(30671214)~~

摘　　要：[Objective] The study aimed to prove effects of NO on oxidative damage and photosynthetic apparatus at filling stage of wheat leaves under high temperature and irradiance stress.[Method] Yunong 949 was taken as experimental material to study the effects of sodium nitropprusside (SNP,an exogenous nitric oxide donor) at 0.1 mmol/L on protective enzyme activities, oxidative damage and fluorescence.[Result] The treatment with SNP (at 0.1 mmol/L) significantly increased the activity of SOD and APX, proline content, decreased the MDA content and relative electrical conductivity, Kept the higher Fv/Fm and lower Fo.[Conclusion] The adaptability of wheat with SNP treatment at 0.1 mmol/L was improved under high temperature and irradiance stress.[Objective] The study aimed to prove effects of NO on oxidative damage and photosynthetic apparatus at filling stage of wheat leaves under high temperature and irradiance stress.[Method] Yunong 949 was taken as experimental material to study the effects of sodium nitropprusside (SNP,an exogenous nitric oxide donor) at 0.1 mmol/L on protective enzyme activities, oxidative damage and fluorescence.[Result] The treatment with SNP (at 0.1 mmol/L) significantly increased the activity of SOD and APX, proline content, decreased the MDA content and relative electrical conductivity, Kept the higher Fv/Fm and lower Fo.[Conclusion] The adaptability of wheat with SNP treatment at 0.1 mmol/L was improved under high temperature and irradiance stress.

关 键 词：Wheat SNP High temperature and IRRADIANCE STRESS ANTIOXIDANT ENZYME Fluorescence 

分 类 号：S512.1[农业科学—作物学]