Cu2+、Cd2+和Se4+对大型溞的单一及联合毒性效应

doi:10.3976/j.issn.1002-4026.2012.02.009

J4 ›› 2012, Vol. 25 ›› Issue (2): 38-43.doi: 10.3976/j.issn.1002-4026.2012.02.009

Cu²⁺、Cd²⁺和Se⁴⁺对大型溞的单一及联合毒性效应

董晓晓¹，刘腾腾¹，孔强¹，陆江²，付荣恕^1*

1.山东师范大学生命科学学院，山东济南 250014； 2.济南军区空军后勤部，山东济南 250002

收稿日期:2011-11-29 出版日期:2012-04-20 发布日期:2012-04-20
作者简介:董晓晓（1986-），女，硕士研究生，研究方向为生态毒理学。
基金资助:
国家水体污染控制与治理科技重大专项（2008ZX07209006）

Individual and combined toxicity of Cu²⁺, Cd²⁺ and Se⁴⁺ to Daphnia magna

DONG Xiao-Xiao¹, LIU Teng-Teng¹, KONG Qiang¹, LU Jiang², FU Rong-Shu^1*

1.School of Life Sciences, Shandong Normal University, Jinan 250014, China; 2.Department of Air Force Logistics, Jinan Military Region,Jinan 250002, China

Received:2011-11-29 Online:2012-04-20 Published:2012-04-20

摘要/Abstract

摘要：

以静水生物测试法研究了Cu²⁺、Cd²⁺和Se⁴⁺对大型溞（Daphnia magna）的单一及联合毒性效应，并采用水生毒理联合毒性相加指数法对其联合毒性效应进行了评价。单一毒性实验结果表明，Cu²⁺、Cd²⁺和Se⁴⁺对大型溞的毒性大小为：Cu²⁺>Cd²⁺>Se⁴⁺。联合毒性实验结果表明，Cu²⁺、Cd²⁺和Se⁴⁺对大型溞的联合毒性比较复杂，在两两共存或三者共存时，随着浓度配比方式的不同，联合毒性效应发生变化，显示出一定的复杂性。值得注意的是，Cu²⁺Cd²⁺在毒性1∶1配比时，联合毒性效应随暴露时间的延长由拮抗作用转变为协同作用，与其他几种联合方式相比，表现出一定的特殊性。

关键词: Cu^2+, Cd²⁺, Se⁴⁺, 大型溞, 联合毒性

Abstract:

We addressed the individual and combined toxicity of Cu²⁺, Cd²⁺ and Se⁴⁺ to Daphnia magna with a static test method. We also employed additive index method to evaluate their combined toxicity. Individual toxicity experiment shows that the toxicity of Cu²⁺, Cd²⁺ and Se⁴⁺ is degressive. Combined toxicity experiment shows that complex toxicity effect exhibits for different concentration ratios of Cu²⁺, Cd²⁺ and Se⁴⁺. Especially, the combined toxicity effect changed from antagonistic response to synergistic response with the increase of exposure time for equal concentration ratio of Cu²⁺ and Cd²⁺.

Key words: Cu^2+, Cd²⁺, Se⁴⁺, Daphnia magna, combined toxicity

中图分类号:

X826

董晓晓，刘腾腾，孔强，陆江，付荣恕. Cu²⁺、Cd²⁺和Se⁴⁺对大型溞的单一及联合毒性效应[J]. J4, 2012, 25(2): 38-43.

DONG Xiao-Xiao, LIU Teng-Teng, KONG Qiang, LU Jiang, FU Rong-Shu. Individual and combined toxicity of Cu²⁺, Cd²⁺ and Se⁴⁺ to Daphnia magna[J]. J4, 2012, 25(2): 38-43.

Cu²⁺、Cd²⁺和Se⁴⁺对大型溞的单一及联合毒性效应

Individual and combined toxicity of Cu²⁺, Cd²⁺ and Se⁴⁺ to Daphnia magna

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