Degradation of pendimethalin by the yeast YC2 and determination of its two main metabolites
文献类型： 外文期刊
作者： Han, Yajie 1 ; Tang, Zonggui 3 ; Bao, Huifang 4 ; Wu, Dongmei 5 ; Deng, Xiaolin 6 ; Guo, Gaowei 6 ; Ye, Bang-Ce 1 ; Dai, 1 ;
作者机构： 1.Shihezi Univ, Sch Chem & Chem Engn, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Shihezi 832003, Peoples R China
2.Shihezi Univ, Coll Life Sci, Shihezi 832003, Peoples R China
3.Xinjiang Agr Reclamat Acad Sci, Anal & Testing Ctr, Shihezi 832000, Peoples R China
4.Xinjiang Acad Agr Sci, Inst Appl Microbiol, Urumqi 830091, Peoples R China
5.Xinjiang Agr Reclamat Acad Sci, Biotechnol Res Inst, Shihezi 832000, Peoples R China
6.Shihezi Univ, Teachers Coll, Dept Chem, Shihezi 832003, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：3.361； 五年影响因子：3.39 ）
ISSN： 2046-2069
年卷期： 2019 年 9 卷 1 期
页码：
收录情况： SCI
摘要： In this study, we isolated a yeast strain, YC2, by enrichment culture from pendimethalin-contaminated soil. The analysis of its phenotypic features and 26S rRNA sequence confirmed that the strain YC2 is Clavispora lusitaniae. According to the kinetics of pendimethalin degradation, YC2 could degrade 74% of 200 mg L-1 pendimethalin in CMB liquid culture over 8 days. LC-MS/MS was used to identify the metabolites of pendimethalin after degradation. This study confirmed that its metabolites consist of 1,2-dimethyl-3,5-dinitro-4-N(buta-1,3-dien-2-yl)-dinitrobenzenamine-N-oxide and 1,2-dimethyl-3,5-dinitro-4-N(prop-1-en-2-yl)-dinitrobenzenamine-N-oxide, which were broken down by a series of enzymatic reactions to produce CO2 and H2O. Thus, the study herein sheds light on the role of yeast in the degradation of pendimethalin.
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