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环境化学  2015 

铜及其EDTA配合物对彭泽鲫鱼肝脏抗氧化系统的影响

Keywords: ,Cu-EDTA,鲫鱼,抗氧化系统

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Abstract:

选择幼龄彭泽鲫鱼为材料,研究Cu2+及其配合物Cu-EDTA低浓度长期暴露(40d)对鲫鱼肝脏抗氧化防御系统的影响.结果表明,两种形态的铜对鲫鱼肝脏过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GPx)均表现出抑制作用;Cu2+在低浓度时对超氧化物歧化酶(SOD)有诱导,而Cu-EDTA的诱导作用在浓度较高时才表现出来.对于谷胱甘肽转硫酶(GST)的影响是在低浓度有诱导,高浓度抑制.

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