农药学学报2001，Vol.3Issue(2)：73-76,4.
一硫代磷酸酯类杀虫剂的微生物降解
Microbial Degradation of O-Phosphothioate Insecticides
摘要
Abstract
Degradation characteristics of O-phosphothioate insecticides by the isolated strain Pseudomonas sp. YF05 were measured. Degradation of parathion was determined to be first-order kinetic under conditions of pH7.0, 30 ℃, and biomass of OD415 nm 0.2. The rate constants for degradation of parathion at concentrations of 10, 25, 50, 100, 200, 500 mg/L, were measured to be 0.077, 0.123, 0.128, 0.119, 0.084, 0.013， respectively. The capability of YF05 was inhibited by parathion at high concentration. The degradation rate of parathion by YF05 was affected by pH and temperature as the orders of pH 8.0＞pH 7.0＞pH 6.0, 40 ℃＞30 ℃＞20 ℃， respectively. Parathion-methyl and fenitrothion could be degraded rapidly by the isolated strain YF05. The rate constant for degradation of parathion-methyl was almost the same as that of parathion, and that of fenitrothion was greater than that of parathion.关键词
杀虫剂/生物降解/生物修复分类
农业科技引用本文复制引用
潘学冬,虞云龙,李少南,樊德方..一硫代磷酸酯类杀虫剂的微生物降解[J].农药学学报,2001,3(2):73-76,4.
