杭州师范大学学报（自然科学版）2017，Vol.16Issue(3)：273-277,283,6.DOI:10.3969/j.issn.1674-232X.2017.03.009
两种典型手性有机氯农药对大型蚤的对映体选择性毒性
Enantioselective Toxicity to Daphnia magna ofTwo Type Chiral Organochlorine Pesticides
摘要
Abstract
Using OECD guidelines for testing of chemicals and chemical pesticide environmental safety assessment testing criteria,choosing Daphnia magna as the tested organism,this thesis evaluated acute and chronic toxicity of racemate and enantiomers of α-HCH and o.p′-DDT to Daphnia magna.The results showed that enantio-selectivity was observed for acute and chronic toxicity of two chiral OCPs to D.magna.The 48 h-LC50of rac-α-HCH,(+)-α-HCH and (-)-α-HCH to D.magna were 1.47,1.12 and 1.98 mg/L,respectively.And 48 h-LC50of rac-o.p′-DDT,(+)-o.p′-DDT and (-)-o.p′-DDT to D.magna were 0.27,0.52 and 0.18 mg/L,respectively.The results of chronic toxicity showed that parameters such as length was significantly affected at (+)-α-HCH concentration higher than 10 μg/L,rac-α-HCH and (+)-α-HCH of > 10 μg/L significantly prolonged the intrinsic rate of natural increase (r).关键词
有机氯杀虫剂/手性/急性毒性/慢性毒性/大型蚤Key words
organochlorine pesticides/chirality/acute toxicity/chronic toxicity/Daphnia magna分类
农业科技引用本文复制引用
杨华云,高勤芬..两种典型手性有机氯农药对大型蚤的对映体选择性毒性[J].杭州师范大学学报（自然科学版）,2017,16(3):273-277,283,6.基金项目
国家自然科学基金项目(21207030) （21207030）
杭州市属高校中青年学术带头人项目(杭教高师[2013]45号). （杭教高师[2013]45号）
