Degradation of methomyl by the combination of Aminobacter sp. MDW‐2 and Afipia sp. MDW‐3
Degradation of methomyl by the combination of Aminobacter sp. MDW‐2 and Afipia sp. MDW‐3
复制标题
DOI：
10.1111/lam.12715
复制
发表时间：
2017-04
影响因子：
2.4
通讯作者：
Chenfei Zhang;Zhangong Yang;Wen Jin;Xiang Wang;Yingkun Zhang;Shijun Zhu;Xing Yu;Gang Hu;Qing Hong
中科院分区：
文献类型：
--
作者：
Chenfei Zhang;Zhangong Yang;Wen Jin;Xiang Wang;Yingkun Zhang;Shijun Zhu;Xing Yu;Gang Hu;Qing Hong
Methomyl (S‐methyl N‐(methylcarbamoyloxy) thioacetimidate) is a kind of oxime carbamate insecticide. It is considered to be extremely toxic to nontarget organism. To date, no pure culture or consortium has been reported to have the ability to degrade methomyl completely. In this study, a methomyl‐degrading enrichment E1 was obtained by using the sludge from the wastewater‐treating system of a pesticide manufacturer as the original inoculant. Two bacterial strains named MDW‐2 and MDW‐3 were isolated from this enrichment, and they were preliminarily identified as Aminobacter sp. and Afipia sp. respectively. Strains MDW‐2 and MDW‐3 could coexist and degrade 50 mg l−1 methomyl completely within 3 days by the cooperative metabolism. Methomyl was first converted to methomyl oxime and methylcarbamic acid by strain MDW‐2, and the latter could be used as the carbon source for the growth of strain MDW‐2. But methomyl oxime could not be sequentially degraded by strain MDW‐2. However, it could be degraded and used as the carbon source by strain MDW‐3.
