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      Joint Toxicity of Arsenic, Copper and Glyphosate on Behavior, Reproduction and Heat Shock Protein Response in Caenorhabditis elegans.

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          Abstract

          The soil nematode Caenorhabditis elegans was used in 24-h acute exposures to arsenic (As), copper (Cu) and glyphosate (GPS) and to mixtures of As/Cu and As/GPS to investigate the effects of mixture exposures in the worms. A synergistic type of interaction was observed for acute toxicity with the As/Cu and As/GPS mixtures. Sublethal 24-h exposures of 1/1000, 1/100 and 1/10 of the LC50 concentrations for As, Cu and GPS individually and for As/Cu and As/GPS mixtures were conducted to observe responses in locomotory behavior (head thrashing), reproduction, and heat shock protein expression. Head thrash frequency and reproduction exhibited concentration dependent decreases in both individual and combined exposures to the tested chemical stressors, and showed synergistic interactions even at micromolar concentrations. Furthermore, the HSP70 protein level was significantly increased following exposure to individual and combined chemical stressors in wild-type C. elegans. Our findings establish for the first time the effects of exposure to As/GPS and As/Cu mixtures in C. elegans.

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          Author and article information

          Journal
          Bull Environ Contam Toxicol
          Bulletin of environmental contamination and toxicology
          Springer Nature
          1432-0800
          0007-4861
          Apr 2017
          : 98
          : 4
          Affiliations
          [1 ] Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China. wangyb@iga.ac.cn.
          [2 ] Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China.
          [3 ] Jilin Provincial Institute of Education, Changchun, 130022, China.
          [4 ] School of Environment, Northeast Normal University, Changchun, 130117, China. songct681@nenu.edu.cn.
          Article
          10.1007/s00128-017-2042-5
          10.1007/s00128-017-2042-5
          28224177
          36cc58a0-2e89-4766-aa98-86c7236289cd
          History

          Caenorhabditis elegans,Mixture toxicity,Heat shock proteins,Ecotoxicological biomarker,Arsenic

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