镉胁迫对两种芒属植物叶片抗氧化酶系统的影响  

Effects of Cadmium Stress on Antioxidant Enzyme System in Leaves of Two Species of Miscanthus

作　　者：黄湘吉 杨友才[1] HUANG Xiang-ji;YANG You-cai(College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, PRC)

机构地区：[1]湖南农业大学生物科学技术学院,湖南长沙410128

出　　处：《湖南农业科学》2017年第4期39-42,共4页Hunan Agricultural Sciences

基　　金：湖南省农业委员会2016年湖南重金属污染耕地修复及农作物种植结构调整试点资金专项(湘财农指[2016]130号)

摘　　要：以芒属植物A0104和C0424两个品种的幼苗为材料,采用水培的方式探讨了Cd胁迫对芒属植物叶片抗氧化酶系统的影响。结果表明:当Cd浓度为1~2 mg/L时,Cd胁迫对C0424的影响较小,当Cd浓度增加至3~4 mg/L时,C0424体内氧化应激加剧;而A0104在1~4 mg/L的Cd胁迫浓度下均发生了强烈的氧化应激反应。这表明C0424在Cd耐性方面优于A0104。Taking seedlings of Miscanthus A0104and C0424as materials,the effects of Cd stress on the antioxidant enzyme system of the leaves of Miscanthus was studied by means of hydroponics.The results showed that1-2mg/L Cd have less effect on the C0424Cdstress,but when the concentration of Cd increased to3-4mg/L,Oxidative stress increased in C0424oxidative stress.And strong oxidative stress reaction happened in A0104under1-4mg/L Cd stress concentrations.It was concluded that the tolerance to Cd in C0424is strongerthan that in A0104.

关 键 词：CD胁迫 抗氧化系统 芒属植物 

分 类 号：Q945.78[生物学—植物学]