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湖泊科学  2005 

外源ASA对菹草(Potamogetoncrispus)抗Cd2+毒害的实验分析

DOI: 10.18307/2005.0114

Keywords: Cd2+,O2padding-top:0px,·&searchField=keyword">">·

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Abstract:

实验以高等水生沉水植物菹草为材料,研究在不同浓度Cd2+毒害条件下外施乙酰水杨酸(ASA)对菹草叶中叶绿素含量、可容性蛋白含量、O2·产生速率、保护酶—超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性的影响.结果表明,施用ASA可以显著提高叶绿素和可溶性蛋白的含量,增强保护酶的活性,降低O2·产生速率,从而减轻了重金属Cd2+胁迫对植物体造成的伤害.

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