EDTA对汞毒害下玉米幼苗细胞膜损伤及体内保护系统变化的缓解作用

The Mitigation of EDTA on Cell Membrane Injure and Endogenous Protective Systems Changes of Maize Seedlings Caused by Mercury.

本文研究表明，用含汞污水灌溉，能引起玉米幼苗细胞膜脂质过氧化水平升高，细胞膜透性增大，ＣＡＴ活性降低，ＳＯＤ、ＰＯＤ活性升高，组织可溶性糖和可溶性蛋白质含量升高。向含汞污水中加入ＥＤＴＡ，能使上述变化得以恢复，汞对幼苗的毒害减轻。

The experimental results showed that irrigation with mercury containing sewage water increased MDA content,permeability of plasma membrane, activities of SOD, the contents of soluble sugars and soluble protein and decrease of activity of CAT of Maize seedlings.The harm of mercury of maize seedlings was subsided by adding EDTA to the sewage water.