模拟厌氧胁迫对薏苡和玉米抗氧化酶活性及膜脂过氧化物的作用  

Effect of Simulative Anoxia on the Activity of Antioxidant Enzyme and Lipid Peroxidation of Coix and Maize

作　　者：李亚男[1] 付碧石[1] 陈大清[1,2] 

机构地区：[1]长江大学生命科学学院,湖北荆州434025 [2]武汉大学生命科学学院,湖北武汉430072

出　　处：《长江大学学报（自科版）（中旬）》2006年第3期166-168,173,共4页Journal of Yangtze University(Nature Science Edition)

基　　金：湖北省教育厅科研基金重点资助项目(2002A0013)

摘　　要：研究了模拟厌氧胁迫下薏苡(Coix lacrymajobi L.)和玉米(zea may L.)的丙醛(MDA)和过氧化脂质(LPO)含量及超氧物歧化酶(SOD)和过氧化物酶(POD)活性的变化。结果表明:厌氧胁迫处理增加薏苡、玉米根系和叶片的MDA的含量,同时导致膜脂过氧化物的生成;但在根系中,薏苡膜脂过氧化物含量低于玉米,MDA含量与处理前比较处于较低水平,此外,薏苡根系中SOD维持较高的活性,而玉米则在叶片中有较高的POD和SOD活性。The change of the content of malonaldehyde(MDA) and lipid peroxidation(LPO),and that of the activity of superoxidedismutase(SOD) and peroxidase(POD) of coix(Coix lacrymajobi L.)and maize(zea may L.) under simjulative anoxia stress were studied.The results showed that the treatment of anoxia increased the content of MDA of coix and maize, also resulted in the production of LPO.On the other hand, the content of LPO in coix was lower than maize, and compared with the anoxia treatment before the MDA maintained ...

关 键 词：厌氧胁迫 薏苡(Coix lacrymajobi L.) 玉米(zea MAY L.) 膜脂过氧化物 抗氧化酶 

分 类 号：Q945.78[生物学—植物学]