eisenia fetida
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2022 ◽  
Vol 425 ◽  
pp. 128006
Author(s):  
Caide Huang ◽  
Xiaoling Zhang ◽  
Kun Wang ◽  
Shizhong Yue ◽  
Yuhui Qiao

2022 ◽  
Author(s):  
Kaixuan Hou ◽  
Yue Yang ◽  
Lei Zhu ◽  
Ruolin Wu ◽  
Zhongkun Du ◽  
...  

Abstract 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 activities showed that TCP induced the enzymes activities of earthworm in red clay was stronger than 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.


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