Monitoring the Acute and Subacute Toxicity Effects of Herbicide Acetochlor by Bacterivorous Nematode
Much attentions is paid to the toxic side-effect of herbicides on non-target organisms and environmental safety. Nematodes have been considered as an important indicator and widely used in toxicity testing, due to requiring little space, having short life cycles, simple reproduction and being relatively easy manipulated and maintained in laboratory cultures. In our study, the herbicide acetochlor was evaluated for its toxicity effects on Acrobeloides nanus. Endpoints were chosen to compare the toxicity effects of acetochlor on lethality, reproduction capacity and growth of these nematodes. The lethality of the nematode exposed to acetochlor changed with an increasing in exposure time and the exposed concentrations. The LCSO values ofA.nanus were 2498.45 mg/Lfor 24h exposur and 2170.55 mg/L for 48h exposure. This study showed that acetochlor had no long-term effects on nematode reproduction, growth and development at lower concentrations(from 2.5 to 20 mg·L-1 ), While the higher concentrations of acetochlor (from 40 to 160 mg/L) mostly revealed sublethal toxicity to A.nanus.
Herbicide Acetochlor Acrobelides nanus Monitoring
Jingncm Zhang Siwei Jiang Min Zhang Xia Wu
Institute of Applied Ecology, Chinese Acedamy of Sciences, Shenyang, China Graduate School of the Ch Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
国际会议
山东淄博
英文
669-672
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）