烟嘧磺隆降解菌最佳生长条件及其在土壤中的降解特性  

Nicosulfuron Degradation Bacterium of Best Growth Condition and Degradation Characteristic in Soil

作　　者：赵巍巍[1] 边拯民[1] 高鹤南[1] 马晓亮[1] 李闯[1] 张浩[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《农药》2010年第1期41-43,共3页Agrochemicals

基　　金：吉林省科技发展计划(20070568);长春市科技计划项目(09GH14)

摘　　要：从农药厂的活性污泥中分离到一株能降解烟嘧磺隆的降解菌(N80)。正交实验确定其最适生长条件为pH值为7.0,葡萄糖1g/L,酵母粉1g/L,氯化钠10g/L,于30℃,180r/min摇床培养。土壤实验表明:在0～15cm的土层中,烟嘧磺隆和降解菌在土壤中都具有一定的移动性,降解菌的活动范围是0～15cm的土层,并测定0～5cm土层中的烟嘧磺隆降解率为85.5%。The objective of this research was to isolate a nicosulfuron degrading strain of N80（Serratia marcecens）, and determine its degradation characteristic in remediation of a nicosulfuron-contaminate soil. The experiment condition of best growth of N80 was pH value 7.0, glucose 1 g/L, yeast 1 g/L, sodium chloride 10 g/L. The strain was incubated in shaker at 30 ℃, 160 r/min speed. The soil degradation test indicated that nicosulfuron and its degrading bacterium could move in 0-15 cm soil column. Strain N80 distribution was 0-15 cm soil. The degradation rate of nicosulfuron was 85.5% in 0-5 cm soil.

关 键 词：降解 烟嘧磺隆 正交实验 土壤 

分 类 号：X172[环境科学与工程—环境科学]