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The combined toxicity assessment of carp (Cyprinus carpio) acetylcholinesterase activity by binary mixtures of chlorpyrifos and four other insecticides

文献类型： 外文期刊

作者： Chen, Chen 1 ; Wang, Yanhua 2 ; Zhao, Xueping 2 ; Wang, Qiang 2 ; Qian, Yongzhong 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Key Lab Agroprod Qual & Safety, Minist Agr, Beijing 100081, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Qual & Standard Agroprod, Key Lab Pesticide Residue Detect,Minist Agr, State Key Lab Breeding Base Zhejiang Sustainable, Hangzhou 310021, Zhejiang, Peoples R China

关键词： Organophosphates;Carbamates;Cyprinus carpio;Concentration addition;Isobole;Combined toxicity

期刊名称：ECOTOXICOLOGY （ 影响因子：2.823； 五年影响因子：2.958 ）

ISSN： 0963-9292

年卷期： 2014 年 23 卷 2 期

页码：

收录情况： SCI

摘要： Mixtures of organophosphate (OP) and carbamate (CB) insecticides are commonly detected in freshwater habitats. These insecticides inhibit the activity of acetylcholinesterase (AChE) and have potential to interfere with behaviors that may be essential for survival of species. Although the effects of individual anticholinesterase insecticides on aquatic species have been studied for decades, the combined toxicity of mixtures is still poorly understood. In the present study, we assessed whether pesticides in a mixture act in isolation (resulting in additive AChE inhibition) or whether components interact to produce either antagonistic or synergistic toxicity. Brain AChE inhibition in carp (Cyprinus carpio L.) exposed to a series of concentrations of the OP (chlorpyrifos, malathion and triazophos) as well as the CB (fenobucarb and carbosulfan) were measured. The concentration addition (CA) model and the isobole method were used to determine whether toxicological responses to binary mixtures of pesticides. In 50:50 % effect mixtures, the observed combined toxicity of chlorpyrifos and malathion was significantly higher than observed and was considered as synergistic. For equivalent dose mixtures, when chlorpyrifos mixed with fenobucarb or malathion, the observed toxicities were significantly higher than predicted, suggesting synergistic joint actions. The rest five binary combinations exhibited concentration additive or slight antagonistic joint actions. The CA model and the isobole method provided estimates of mixture toxicity that did not markedly underestimate the measured toxicity, therefore these methods are suitable to use in ecological risk assessments of pesticide mixtures.

  • 相关文献

[1]Assessing joint toxicity of four organophosphate and carbamate insecticides in common carp (Cyprinus carpio) using acetylcholinesterase activity as an endpoint. Wang, Yanhua,Zhao, Xueping,Wang, Qiang,Chen, Chen,Qian, Yongzhong.

[2]Joint acute and endocrine disruptive toxicities of malathion, cypermethrin and prochloraz to embryo-larval zebrafish, Darzio rerio. Guo, Dongmei,Wang, Yanhua,Qian, Yongzhong,Chen, Chen,Wang, Yanhua,Wang, Qiang,Jiao, Bining. 2017

[3]Individual and Joint Acute Toxicities of Selected Insecticides Against Bombyx mori (Lepidoptera: Bombycidae). Yu, R. X.,Wang, Y. H.,Hu, X. Q.,Wu, S. G.,Cai, L. M.,Zhao, X. P..

[4]Joint acute toxicity of the herbicide butachlor and three insecticides to the terrestrial earthworm, Eisenia fetida. Wang, Yanhua,Cang, Tao,Yu, Ruixian,Wu, Shenggan,Liu, Xinju,Wang, Qiang,Cai, Leiming,Chen, Chen.

[5]Individual and combined toxic effects of herbicide atrazine and three insecticides on the earthworm, Eisenia fetida. Wang, Yanhua,An, Xuehua,Chen, Liezhong,Jiang, Jinhua,Wang, Qiang,Cai, Leiming,Shen, Weifeng.

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