有机磷农药广谱活性降解菌的分离及其生理特性研究  

Isolation of bacteria with extensive degradation oforganophosphorous insecticides and studieson its physiological characterization

作　　者：王永杰[1] 李顺鹏[1] 沈标[1] 顾向阳 程国锋 

机构地区：[1]南京农业大学资源与环境科学学院

出　　处：《南京农业大学学报》1999年第2期42-45,共4页Journal of Nanjing Agricultural University

基　　金：江苏省科委攻关项目

摘　　要：从污泥中分离筛选到１株以共代谢方式可广谱降解有机磷农药的芽孢杆菌，初步鉴定为地衣芽孢杆菌（Ｂ．ｌｉｃｈｅｎｉｆｏｒｍｉｓ）。该菌对农药甲胺磷、敌敌畏、对硫磷的最高耐受浓度分别为：３５００，５００，３００ｍｇ／Ｌ。在３０°Ｃ，１００ｒ／ｍｉｎ培养条件下，７２ｈ内对５００ｍｇ／Ｌ甲胺磷、２００ｍｇ／Ｌ敌敌畏、１００ｍｇ／Ｌ对硫磷的降解率分别为７５．８％，５０．３％和２５．４％。降解酶（或酶系）可诱导产生，外加易利用的碳源影响其降解活性。This article describes a strain which degrades organophosphorous insecticides by the way of cometabolism.It was isolated from the sludges and identified as B.licheniformis. The highest enduration concentrations of the bacterium to methamidophos,dichlorvos and parathion were 3 500,500,300 mg/L respectively.In the culture conditions of 30 C and 100 r/min,whithin 72 hours,the rates of its biodegradation to methamidophos,dichlorvos and parathion were 758%,503% and 254% respectively.Degrading enzyms(or enzyms system)were induced by pesticides.Its biodegrability is effected by additional carbon source contained in the medium

关 键 词：有机磷农药 降解 地衣芽孢杆菌 土壤污染 残留 

分 类 号：X592.02[环境科学与工程—环境工程]