Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 114, Issue -, Pages 17-22Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2014.12.037
Keywords
Guadipyr; Earthworm; Toxicity evaluation; Antioxidase; DNA damage
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Funding
- Laboratory of Environmental Safety Assessment for Pesticides, Department of Applied Chemistry, China Agricultural University
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Neonicotinoid insecticides are new class of pesticides and it is very meaningful to evaluate the toxicity of guadipyr to earthworm (Eisenia fetida). In the present study, effects of guadipyr on reproduction, growth, catalase(CAT), superoxide dismutase (SOD), acetylcholinesterase (AChE) and DNA damage in earthworm were assessed using an artificial soil medium. Guadipyr showed low toxicity to earthworms and did not elicit an effect on earthworm reproduction or growth in artificial soils at concentrations < 100 mg/kg. However, after exposure to guadipyr, the activity of SOD and CAT in earthworm increased and then decreased to control level. AChE activity decreased at day 3 at 50 and 100 mg/kg and then increased to control level. Our data indicate that guadipyr did not induce DNA damage in earthworms at concentration of < 100 mg/kg. (C) 2014 Elsevier Inc. All rights reserved.
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