热激处理对棉花耐逆性的影响  

Effects of Heat Shock Treatment on the Stress Tolerance in Cotton

作　　者：方丽平[1] 汪瑞清[1] 杨国正[1] 

机构地区：[1]华中农业大学植物科学技术学院,武汉430070

出　　处：《棉花学报》2009年第1期46-50,共5页Cotton Science

基　　金：国家自然科学基金(30170543);国家农业行业计划(nyhyzx07-005)

摘　　要：从不同生育期热激处理对棉花抗氧化酶活性和细胞膜伤害的影响及萌动期热激处理对棉花自然高温期的抗氧化酶活性和细胞膜伤害的影响这两个方面研究热激处理与棉花耐逆性的关系。结果表明:热激处理后棉花体内的SOD、POD、CAT的酶活性都增高,在自然高温期MDA的含量下降,蕾铃脱落率下降,热激处理能在一定程度上诱导棉花耐逆性的获得。Effects of heat shock at different growth phases and germinating on stress tolerance in cotton were studied.Results indicated that heat shock treatment increased the activity of antioxidant enzyme,especially the activity of SOD,POD,CAT,and decreased cellular injury caused by reactive oxygen species,and decreased the content of MDA in cotton,thus protected cotton from injury in high temperature.So heat shock treatment can increase cotton′s stress tolerance and the boll retention in high temperature.

关 键 词：棉花 热激处理 抗氧化酶(SOD、POD、CAT) 耐逆性 

分 类 号：S562[农业科学—作物学]