Cd^(2+)污染对草鱼不同组织中过氧化物酶活性的影响  

Effects of Cd^(2+) on POD in Various Organs of Grass Carp(Ctenopharyngodon idellus)

作　　者：迂君[1] 王桂燕[2] 周启星[3] 史济月[2] 

机构地区：[1]沈阳市疾病预防控制中心,辽宁沈阳110031 [2]沈阳药科大学制药工程学院,辽宁沈阳110016 [3]南开大学环境科学与工程学院,天津300071

出　　处：《生态与农村环境学报》2011年第4期100-103,共4页Journal of Ecology and Rural Environment

基　　金：辽宁省教育厅资助项目(2008715);沈阳市科学技术局资助项目(1091181-1-00)

摘　　要：采用细静水生物测试法研究Cd2+对草鱼(Ctenopharyngodon idellus)的肝胰脏、肾脏和鳃组织过氧化物酶(POD)活性的影响。结果表明,在7 d的试验时间内,低浓度Cd2+胁迫时,肝胰脏和肾脏组织POD活性随时间变化均呈先降低后升高再降低的变化趋势,而高浓度Cd2+胁迫时,肝胰脏组织POD活性始终受到显著抑制(P<0.05),肾脏组织POD活性短时间内被诱导,但随着暴露时间的延长,其受到显著抑制(P<0.05);鳃组织在受到Cd2+污染时POD活性随时间变化呈先升高后降低变化趋势。草鱼鳃组织POD活性明显低于肝胰脏和肾脏组织。Effects of Cd2＋ on peroxidase systems（POD） in organs of grass carp,like liver,kidney and gill were studied with the hydrostatic biological test method.Results show that within the 7 days of experiment period,under low Cd2＋ stresss,the activity of POD in the liver and kidney tissues decreased first then increased and decreased once again as time elapsed,while under high Cd2＋ stress,the activity of POD in the liver was significantly inhibited through all the 7 days of experiment period（P0.05）.Under high Cd2＋ stress,POD in kidney was firstly reactivated in a short time,but was soon inhibited significantly（P0.05）.However,under Cd2＋ stress,the activity of POD in the gill first increased and then decreased with time during the 7 days of experiment priod,and was obviously lower than that in liver and kidney.

关 键 词：Cd2+ 草鱼 过氧化物酶(POD) 肝胰脏 肾脏 鳃 

分 类 号：X171.5[环境科学与工程—环境科学]