文献类型： 外文期刊
作者： Song, Jinlong 1 ; Han, Gang 1 ; Wang, Yani 1 ; Jiang, Xu 2 ; Zhao, Dongxue 3 ; Li, Miaomiao 2 ; Yang, Zhen 1 ; Ma, Qingyu 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Minist Agr & Rural Affairs, Key Lab Control Qual & Safety Aquat Prod, Beijing 100141, Peoples R China
2.CAAS, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
3.Bohai Univ, Coll Food Sci & Engn, Jinzhou 121013, Peoples R China
4.Jiangxi Agr Univ, Coll Biosci & Engn, Nanchang 330045, Jiangxi, Peoples R China
5.Univ Calif Davis, Coll Biol Sci, Dept Microbiol & Mol Genet, Davis, CA 95156 USA
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2020 年 10 卷 1 期
页码：
收录情况： SCI
摘要： Malachite green is a common environmental pollutant that poses a great threat to non-target organisms, including humans. This study reports the characterization of a bacterial strain, Pseudomonas veronii JW3-6, which was isolated from a malachite green enrichment culture. This strain degraded malachite green efficiently in a wide range of temperature and pH levels. Under optimal degradation conditions (32.4 degrees C, pH 7.1, and inoculum amount of 2.5 x 10(7) cfu/mL), P. veronii JW3-6 could degrade 93.5% of 50mg/L malachite green within seven days. Five intermediate products from the degradation of malachite green were identified: leucomalachite green, 4-(dimethylamino) benzophenone, 4-dimethylaminophenol, benzaldehyde, and hydroquinone. We propose a possible degradation pathway based on these findings. The present study is the first to report the degradation of malachite green by P. veronii and the identification of hydroquinone as a metabolite in the degradation pathway.
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