The responses of the growth, cytochrome P450 isoenzymes activities and the metabolomics in earthworms to sublethal doses of dichlorvos in soil
文献类型： 外文期刊
作者： Yang, Xiaoxia 1 ; Gong, Jiuping 1 ; Zhang, Xuemei 1 ; Zhang, Wei 1 ; Li, Dianyan 1 ; Lin, Junjie 3 ; Li, Xiuying 2 ; Chai 1 ;
作者机构： 1.Chongqing Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Chongqing 401329, Peoples R China
2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
3.Chongqing Three Gorges Univ, Key Lab Water Environm Evolut & Pollut Control Th, Chongqing 404100, Peoples R China
关键词： Important metabolites; CYP1A2; CYP2C9; CYP3A4; Growth inhibition rate; Biomarkers
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.2； 五年影响因子：6.3 ）
ISSN： 0147-6513
年卷期： 2021 年 207 卷
页码：
收录情况： SCI
摘要： In this paper, earthworms (Eisenia fetida) were exposed to sublethal doses of dichlorvos (spiked concentration of 0.1, 1.0, 10 mg/kg) in soil for 14 days, the metabolomics and activities of cytochrome P450 (CYP) isoenzymes (CYP1A2, CYP2C9 and CYP3A4) of earthworms were analyzed aiming to identify sensitive biomarkers and reveal possible mode of toxic action. The results showed that CYP1A2 and CYP2C9 activity appeared to be more sensitive than CYP3A4 activity in response to dichlorvos, and that metabolic responses based on the metabolomics depended on both of the length of exposure and exposure dose. Malate, ornithine, glucose, inosine, myoinositol and some amino acids (glutamine, tryptophan, phenylalanine, tyrosine, leucine, histidine, glutamate, lysine) and CYP isozenzymes may be biomarkers to reveal the toxic effect of dichlorvos on earthworms. Compared to controls, when dichlorvos dose reached 1.0 and 10 mg/kg on day 14, glucose and ornithine increased significantly, malate and some amino acids (glutamine, tryptophan, phenylalanine, tyrosine, leucine) decreased significantly, and activities of CYP1A2 and CYP2C9 were inhibited significantly. The current results suggested that 1.0 and 10 mg/kg dichlorvos for 14 days of exposure blocked energy metabolism, disordered Krebs cycle, interfered amino acids metabolism and evoked toxic effects on earthworms.
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