Biodegradation of dinitrotoluene sulfonates and other nitro-aromatic compounds by Pseudomonas sp. X5 isolated from TNT red water contaminated soil
文献类型： 外文期刊
作者： Xu, Wenjie 1 ; Zhao, Quanlin 2 ; Li, Zhilin 3 ; Lu, Xinyue 2 ; Han, Shiqun 1 ; Ye, Zhengfang 2 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China
2.Peking Univ, Dept Environm Engn, Minist Educ, Key Lab Water & Sediment Sci, Beijing 100871, Peoples R China
3.Hohai Univ, Coll Environm, Nanjing 210098, Jiangsu, Peoples R China
关键词： Pseudomonas sp. X5; Biodegradation; Dinitrotoluene sulfonates; Plasmid
期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：9.297； 五年影响因子：9.444 ）
ISSN： 0959-6526
年卷期： 2019 年 214 卷
页码：
收录情况： SCI
摘要： A dinitrotoluene sulfonates degrading bacterium strain Pseudomonas sp. X5 was isolated from 2, 4, 6-trinitrotoluene red water contaminated soil in Gansu, China, which was used for biodegradation of dinitrotoluene sulfonates. The growth experiments were carried out to optimize the growth condition of X5. Effect of inoculation amount was investigated. Plasmid curing tests were conducted to determine whether the dinitrotoluene sulfonates degrading gene is chromosomal or plasmid encoded. The results showed that the optimum growing conditions for X5 were 35 degrees C, pH 7-9 and 1% (salinity). The biodegradation rates of dinitrotoluene sulfonates were highly affected by inoculation amount. When the inoculation amount was 25%, 100% of 2, 4-dinitrotoluene-3-sulfonate and 2, 4-dinitrotoluene-5-sulfonate could be biodegraded. Liquid chromatography-mass spectrometry analysis showed that the nitro groups in dinitrotoluene sulfonates were transformed to amino groups. Pseudomonas sp. X5 has broad-spectrum degradation characteristics. It can degrade not only dinitrotoluene sulfonates, but also other nitro aromatic pollutants like 2, 4, 6-trinitrotoluene, dinitrotoluene and mononitrotoluene. The ability of Pseudomonas sp. X5 to degrade dinitrotoluene sulfonates, was found to be plasmid encoded. The size of the relevant plasmid was estimated to be about 20 kb. (C) 2019 Elsevier Ltd. All rights reserved.
- 相关文献
作者其他论文 更多>>
-
Photochemical behavior of dissolved organic matter derived from Alternanthera philoxeroides hydrochar: Insights from molecular transformation and photochemically reactive intermediates
作者：Gu, Xincai;Liu, Hong;Gu, Xincai;Chen, Bingfa;Feng, Yanfang;He, Shiying;Pan, Guojun;Han, Shiqun;Wang, Bingyu;Feng, Muhua
关键词：Hydrochar; Dissolved organic matter; Photochemical behavior; Photochemically reactive intermediates; Molecular transformation
-
Screening optimal preparation conditions of low-cost metal-modified biochar for phosphate adsorption and unraveling their influence on adsorption performance
作者：Lu, Xinyue;Lu, Xinyue;Guo, Wenjing;Feng, Yanfang;He, Shiying;Xue, Lihong;Wang, Bingyu
关键词：Mg oxides; Monte Carlo simulation; Coprecipitation method; Electrostatic force; Density functional theory
-
Inhibition mechanism of Penicillium chrysogenum on Microcystis aeruginosa in aquaculture water
作者：Han, Shiqun;Zhou, Qing;Xu, Wenjie;Zhu, Yehui;Lilje, Osu;van Ogtrop, Floris F.
关键词：Aquaculture water; Inhibition mechanism; Microcystis aeruginosa; Penicillium chrysogenum
-
Reed Biochar Addition to Composite Filler Enhances Nitrogen Removal from BDBR Systems in Eutrophic Rivers Channel
作者：Chang, Yajun;Liu, Jie;Han, Shiqun;Chang, Yajun;Sun, Linhe;Cui, Jian;Liu, Xiaojing;Yao, Dongrui;Chang, Yajun;Sun, Linhe;Cui, Jian;Liu, Xiaojing;Yao, Dongrui;Chang, Yajun;Sun, Linhe;Cui, Jian;Liu, Xiaojing;Yao, Dongrui;Liu, Jie;Tang, Qiang
关键词：reed biochar; BDBR system; eutrophic channel; nitrogen removal efficiency; microbial diversity
-
Physiological Responses of Microcystis aeruginosa to Extracellular Degradative Enzymes and Algicidal Substance from Heterotrophic Bacteria
作者：Zhou, Qing;Zhang, Yingying;Han, Shiqun;Wang, Yan;Qin, Hongjie;Zhang, Zhiyong;Zhou, Qing;Zhang, Yingying;Han, Shiqun;Wang, Yan;Qin, Hongjie;Zhang, Zhiyong;Zhou, Qing;Zhang, Yingying;Zhang, Zhiyong
关键词：Microcystis aeruginosa; heterotrophic bacteria; extracellular enzymes; algicidal substance; 1-hydroxyphenazine; heterotrophic partnership
-
Corresponding Responses of Microcystis aeruginosa to Eichhornia crassipes (Mart.) Solms Stress
作者：Zhou, Qing;Han, Shiqun;Zhang, Yingying;Zhang, Zhiyong;Zhou, Qing;Han, Shiqun;Zhang, Yingying;Zhang, Zhiyong
关键词：Eichhornia crassipes; Microcystis aeruginosa; microcystins production; DNA damage; transcription; microcystin biosynthetic genes
-
Harmless disposal and resource utilization of wastes from the lake in China: Dewatering, composting and safety evaluation of fertilizer
作者：Han, Shiqun;Zhou, Qing;Wang, Tao;Li, Jinlian;Liu, Guofeng
关键词：Water waste management; Chaohu Lake; Dewatering; Composting; Safety evaluation; Microbial agent
