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中国生物防治学报 ›› 2016, Vol. 32 ›› Issue (5): 672-675.DOI: 10.16409/j.cnki.2095-039x.2016.05.018

• 研究简报 • 上一篇    下一篇

巨大芽胞杆菌E-1菌株对土壤氯嘧磺隆残留的降解效果

包磊, 谢明, 张艳军, 李丽, 兰亚红, 邱卫亮   

  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
  • 收稿日期:2016-04-14 出版日期:2016-10-08 发布日期:2016-10-08
  • 通讯作者: 谢明
  • 作者简介:包磊(1983-),男,硕士研究生,E-mail:baolei198396@163.com
  • 基金资助:
    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

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

BAO Lei, XIE Ming, ZHANG Yanjun, LI Li, LAN Yahong, QIU Weiliang   

  1. State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2016-04-14 Online:2016-10-08 Published:2016-10-08

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 mL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 mL菌液/kg土时的修复率为11.78%~49.72%;降解菌用量3 mL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。

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

Abstract: 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 mL 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 mL/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 mL/kg soil.

Key words: Bacillus megaterium, chlorimuron-ethyl, bio-degradation, sensitive crop, bioassay

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