华南农业大学学报2013，Vol.34Issue(1)：67-71,5.
杀虫双对杜氏盐藻生长和生理生化的影响
Effects of Chemical Pesticide Dimehypo on Growth, Physiological and Biochemical Characteristics of Dunaliella salina
摘要
Abstract
Dunaliella salina, a unicellular green alga with environmental tolerance, was employed as test organism to investigate the toxicity effects of a pesticide dimehypo. The influences of dimehypo on cell growth, single cell β-carotene level, cell morphology changes, and activities of superoxide dismutase (SOD) and catalase (CAT) were investigated. At the mass concentrations less than 0.5 mg · L-1 dimehypo, cell responses were similar to control. When treated with 1.0 -4.0 mg · L-1 dimehypo, cell growth and single cell β-carotene levels declined at first and then revived. When mass concentrations were higher than 5.0 mg · L-1 dimehypo, both cell growth and single cell β-carotene levels decreased until they were undetectable. The 10 d IC50 of dimehypo on D. salina was 32 mg · L-1 . Dimehypo could stimulate the increase of CAT activity at a low concentration.关键词
杜氏盐藻/毒性/杀虫双Key words
Dunaliella salina/toxicity/dimehypo分类
农业科技引用本文复制引用
蔡马,姜建国,贺立红,余土元..杀虫双对杜氏盐藻生长和生理生化的影响[J].华南农业大学学报,2013,34(1):67-71,5.基金项目
广东省科技计划项目(2009B020307013) （2009B020307013）
