文献类型：期刊文献

中文题名：LAS、Cd^(2+)对泽蛙蝌蚪的联合毒性研究

英文题名：Joint toxicity of Cd^(2+),LAS on Rana limnocharis tadpole

作者：金叶飞[1];施维林[2]

机构：[1]绍兴文理学院生命科学学院;[2]苏州科技学院环境科学与工程学院

年份：2011

卷号：46

期号：4

起止页码：47

中文期刊名：甘肃农业大学学报

外文期刊名：Journal of Gansu Agricultural University

收录：北大核心2008、CSCD_E2011_2012、北大核心、CSCD

基金：苏州市科技重点项目(SYN201002);渐江省自然科学基金一般项目(Y3110024)

语种：中文

中文关键词：泽蛙蝌蚪;十二烷基苯磺酸钠;镉离子;超氧化物歧化酶;过氧化氢酶

外文关键词：Rana limnocharis tadpole; linear alkylbenzene sulfonates（LAS）; Cd2＋; superoxide dismutase（SOD）; catalase（CAT）

中文摘要：采用暴露试验法研究阴离子表面活性剂LAS、重金属Cd2+及它们共存时对泽蛙蝌蚪的急性毒性及SOD、CAT活性的影响.结果表明:LAS、Cd2+对蝌蚪的96h的半致死浓度(LC50)分别为14.43、4.21mg/L.在单一毒性试验基础上,应用相加指数法按毒性单位1∶1和浓度单位1∶1分别进行联合毒性试验,结果表明:LAS、Cd2+按毒性单位1∶1复合时,48、96h时的联合毒性作用均表现为协同作用;LAS、Cd2+按浓度单位1∶1复合时,48h时表现为拮抗作用,96h时表现为协同作用.蝌蚪在亚急性浓度的LAS、Cd2+条件下暴露10d后,单一LAS、Cd2+对泽蛙蝌蚪肝脏的CAT、SOD活性具有显著的诱导作用,LAS、Cd2+复合污染对蝌蚪肝脏CAT、SOD活性也产生了明显影响,表现为一定的协同作用.

外文摘要：To investigate the effects of linear alkylbenzene sulfonates（LAS） and Cd2＋ single and combined pollution in Rana limnocharis tadpole,the acute toxicity and joint toxicity tests of LAS,Cd2＋ and the activities of superoxide dismutase（SOD） and catalase（CAT） in liver were measured by using exposed experiment.The results showed that LC50 of 96 h for LAS and Cd2＋ to tadpole were 14.43 mg/L,4.21 mg/L respectively.In addition,it also indicated that the joint toxicity of Cd2＋ and LAS was synergistic while the toxicity was 1∶1 by evaluation using marking additive index.The joint toxicity of Cd2＋ and LAS was antagonism at 48 h and synergistic at 96 h while the concentration was 1∶1.The results also indicated the activities of CAT and SOD increased significantly after 10 d exposure to single pollution of Cd2＋ and LAS,and the joint effects of the combined pollution on the CAT and SOD activities were synergistic.