Toxicity evaluation of chlorpyrifos and its main metabolite 3,5,6-trichlor- o-2-pyridinol (TCP) to Eisenia fetida in different soils
Toxicity evaluation of chlorpyrifos and its main metabolite 3,5,6-trichlor- o-2-pyridinol (TCP) to Eisenia fetida in different soils
复制标题
毒死蜱及其主要代谢物3,5,6-三氯-2-吡啶醇(TCP)在不同土壤中对赤子爱胜蚓的毒性评价
DOI：
10.1016/j.cbpc.2022.109394
复制
发表时间：
2022-06-15
影响因子：
3.9
通讯作者：
Sun, Shujuan
中科院分区：
文献类型：
--
作者：
Hou, Kaixuan;Yang, Yue;Sun, Shujuan
The present study utilized a biomarker response method to evaluate the effect of 3,5,6-trichloro-2-pyridinol (TCP) in artificial and natural soils on Eisenia fetida after 7, 14, 28, 42 and 56 days exposure. Results indicated that TCP induced excessive reactive oxygen species, caused oxidative stress and DNA damage to Eisenia fetida. Biomarker responses were standardized to calculate the Integrated Biomarker Response (IBR) index. The IBR index of three enzymes (superoxide dismutase, catalase and glutathione S-transferase) activities showed that TCP induced the oxidative stress to E. fetida in red clay was stronger than in the other three soils. Specifically, chlorpyrifos exposure group showed a lower toxicity than TCP exposure group after 28 days exposure but a higher toxicity than TCP exposure group after 56 days exposure. Despite the deficiencies of this study, the above information is of great significance for assessing the risk of chlorpyrifos and its metabolite TCP pollution in soil ecosystems.
