Biochemical and genetic toxicity of dinotefuran on earthworms (Eisenia fetida)

文献类型： 外文期刊

第一作者： Liu, Tong

作者： Liu, Tong;Wang, Xiuguo;Xu, Jinli;You, Xiangwei;Chen, Dan;Wang, Fenglong;Li, Yiqiang

作者机构：

关键词： ROS;GR;MT;HSP70;Phagocytosis;Neonicotinoid insecticides

期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Dinotefuran is a third-generation neonicotinoid insecticide, that is considered promising due to its excellent properties. In the present work, the biochemical and genetic toxicity of dinotefuran on earthworms were evaluated at a series of environmental background concentrations. Meanwhile, the effective concentrations of dinotefuran in artificial soil during the entire exposure period were monitored. The present results showed that dinotefuran was stable in artificial soil, and its concentrations changed no more than 20% during the 28-d exposure. At 1.0 mg/kg and 2.0 mg/kg, dinotefuran induced excess generation of ROS, resulting in significant changes in antioxidant enzyme activities and functional gene expression. Moreover, lipids, proteins and nucleic acids were oxidized and damaged by the excess ROS induced by dinotefuran, resulting in serious destruction of the structure and function of cells. Additionally, the toxicity of dinotefuran showed obvious dose- and time-dependent effects. Therefore, we consider that dinotefuran may be a high-risk pollutant for earthworms. (C) 2017 Elsevier Ltd. All rights reserved.

分类号： X5

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