巨大芽胞杆菌E-1菌株对土壤氯嘧磺隆残留的降解效果  

Degradation of Chlorimuron-ethyl in Soil by Bacillus megaterium E-1

作　　者：包磊[1] 谢明[1] 张艳军[1] 李丽[1] 兰亚红[1] 邱卫亮[1] BAO Lei XIE Ming ZHANG Yanjun LI Li LAN Yahong QIU Weiliang(State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China)

机构地区：[1]中国农业科学院植物保护研究所/植物病虫害生物学国家重点实验室,北京100193

出　　处：《中国生物防治学报》2016年第5期672-675,共4页Chinese Journal of Biological Control

基　　金：科技支撑项目(2012BAD15B03);国家公益性行业(农业)科研专项(201503114);国家科技基础性工作专项(2006FY111000);中国农业科学院创新工程

摘　　要：采用玉米对氯嘧磺隆敏感的原理,测定巨大芽胞杆菌E-1对土壤氯嘧磺隆残留的降解能力。结果表明降解菌用量为300 m L菌液/kg土时,对玉米根长的修复率为18.31%~62.48%;降解菌用量30 m L菌液/kg土时的修复率为11.78%~49.72%;降解菌用量3 m L菌液/kg土时,施用降解菌的处理与不施菌处理之间无显著差异。Based on maize sensitive to chlorimuron-ethyl, the degradability of Bacillus megaterium strain E-1 to chlorimuron-ethyl was investigated. The results showed that this bacterium could degrade all levels of chlorimuron-ethyl（2-50 μg/kg） when used with the concentration of 300 m L bacterial culture per kg soil. The recovery of maize roots was gradually declined along with the concentration increase of chlorimuron-ethyl. The highest recovery percentage of maize roots was 62.48% and the lowest was 18.31% when the dose of degrading bacteria was 30 m L/kg soil. Significant effects were observed in the degradation of chlorimuron-ethyl by bacteria, and the recovery percentage of maize roots was below to 50%. However, no significant differences were found between the treatments with and without bacteria when the dose of degrading barteria was 3 m L/kg soil.

关 键 词：巨大芽胞杆菌 氯嘧磺隆 生物降解 敏感作物 生物测定 

分 类 号：S476[农业科学—农业昆虫与害虫防治]