Wang Kai, Qi Suzhen, Mu Xiyan, Chai Tingting, Yang Yang, Wang Dandan, Li Dongzhi, Che Wunan, Wang Chengju
College of Sciences, China Agricultural University, Yuanmingyuanxi Road 2, Beijing, 100193, China.
Plant Protection College, Shenyang Agricultural University, Shenyang, China.
Bull Environ Contam Toxicol. 2015 Oct;95(4):475-80. doi: 10.1007/s00128-015-1629-y. Epub 2015 Aug 21.
Imidacloprid is a well-known pesticide and it is timely to evaluate its toxicity to earthworms (Eisenia fetida). In the present study, the effect of imidacloprid on reproduction, growth, acetylcholinesterase (AChE) and DNA damage in earthworms was assessed using an artificial soil medium. The median lethal concentration (LC50) and the median number of hatched cocoons (EC50) of imidacloprid to earthworms was 3.05 and 0.92 mg/kg respectively, the lowest observed effect concentration of imidacloprid about hatchability, growth, AChE activity and DNA damage was 0.02, 0.5, 0.1 and 0.5 mg/kg, respectively.
吡虫啉是一种著名的杀虫剂，现在评估其对蚯蚓（赤子爱胜蚓）的毒性恰逢其时。在本研究中，使用人工土壤介质评估了吡虫啉对蚯蚓繁殖、生长、乙酰胆碱酯酶（AChE）和DNA损伤的影响。吡虫啉对蚯蚓的半数致死浓度（LC50）和孵化茧的半数数量（EC50）分别为3.05和0.92毫克/千克，吡虫啉对孵化率、生长、AChE活性和DNA损伤的最低观察效应浓度分别为0.02、0.5、0.1和0.5毫克/千克。
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