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Wang K, Xu L, Ma J, Zhou Y, Jiang Y, Zha J, Cai Y, He J, Jiang J, Qiu J, Mu Y. Characterization of cotinine degradation in a newly isolated Gram-negative strain Pseudomonas sp. JH-2. Arch Microbiol 2024; 206:316. [PMID: 38904699 DOI: 10.1007/s00203-024-04036-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 06/01/2024] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
Cotinine, the primary metabolite of nicotine in the human body, is an emerging pollutant in aquatic environments. It causes environmental problems and is harmful to the health of humans and other mammals; however, the mechanisms of its biodegradation have been elucidated incompletely. In this study, a novel Gram-negative strain that could degrade and utilize cotinine as a sole carbon source was isolated from municipal wastewater samples, and its cotinine degradation characteristics and kinetics were determined. Pseudomonas sp. JH-2 was able to degrade 100 mg/L (0.56 mM) of cotinine with high efficiency within 5 days at 30 ℃, pH 7.0, and 1% NaCl. Two intermediates, 6-hydroxycotinine and 6-hydroxy-3-succinoylpyridine (HSP), were identified by high-performance liquid chromatography and liquid chromatograph mass spectrometer. The draft whole genome sequence of strain JH-2 was obtained and analyzed to determine genomic structure and function. No homologs of proteins predicted in Nocardioides sp. JQ2195 and reported in nicotine degradation Pyrrolidine pathway were found in strain JH-2, suggesting new enzymes that responsible for cotinine catabolism. These findings provide meaningful insights into the biodegradation of cotinine by Gram-negative bacteria.
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Affiliation(s)
- Kexin Wang
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lu Xu
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiale Ma
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ying Zhou
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yinhu Jiang
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jie Zha
- Taizhou Center for Disease Prevention and Control, Taizhou, 225300, China
| | - Yanqiu Cai
- Taizhou Center for Disease Prevention and Control, Taizhou, 225300, China
| | - Jian He
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiandong Jiang
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiguo Qiu
- Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yang Mu
- Taizhou Center for Disease Prevention and Control, Taizhou, 225300, China.
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2
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Boiangiu RS, Brinza I, Honceriu I, Mihasan M, Hritcu L. Insights into Pharmacological Activities of Nicotine and 6-Hydroxy-L-nicotine, a Bacterial Nicotine Derivative: A Systematic Review. Biomolecules 2023; 14:23. [PMID: 38254623 PMCID: PMC10813004 DOI: 10.3390/biom14010023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
The purported cognitive benefits associated with nicotine and its metabolites in the brain are a matter of debate. In this review, the impact of the pharmacologically active metabolite of a nicotine derivative produced by bacteria named 6-hydroxy-L-nicotine (6HLN) on memory, oxidative stress, and the activity of the cholinergic system in the brain was examined. A search in the PubMed, Science Direct, Web of Science, and Google Scholar databases, limiting entries to those published between 1992 and 2023, was conducted. The search focused specifically on articles about nicotine metabolites, memory, oxidative stress, and cholinergic system activity, as well as enzymes or pathways related to nicotine degradation in bacteria. The preliminary search resulted in 696 articles, and following the application of exclusion criteria, 212 articles were deemed eligible for inclusion. This review focuses on experimental studies supporting nicotine catabolism in bacteria, and the chemical and pharmacological activities of nicotine and its metabolite 6HLN.
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Affiliation(s)
| | | | | | - Marius Mihasan
- BioActive Research Group, Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, 700506 Iasi, Romania; (R.S.B.); (I.B.); (I.H.)
| | - Lucian Hritcu
- BioActive Research Group, Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, 700506 Iasi, Romania; (R.S.B.); (I.B.); (I.H.)
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3
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Zhang K, Yin M, Lei S, Zhang H, Yin X, Niu Q. Bacillus sp. YC7 from intestines of Lasioderma serricorne degrades nicotine due to nicotine dehydrogenase. AMB Express 2023; 13:87. [PMID: 37603100 PMCID: PMC10441963 DOI: 10.1186/s13568-023-01593-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 08/04/2023] [Indexed: 08/22/2023] Open
Abstract
A large number of nicotine-containing wastes produced during the tobacco manufacturing process are seriously harmful to the environment and human health. The degradation and transformation of nicotine-containing environmental contaminants to harmless substances has become an urgent requirement. Lasioderma serricorne can grow and reproduce in nicotine-rich sources, and their intestinal microbiota show promising potential to degrade and utilize nicotine. The purpose of this study is to screen and identify nicotine-degrading bacteria from the intestines of L. serricorne and explore their degradation characteristics. A dominant strain, YC7, with significant nicotine degradation capabilities was isolated from the intestines of L. serricorne. The strain was identified as Bacillus using a polyphasic approach. The test results showed it can produce multiple enzymes that include β-glucosidase, cellulase, proteases, and amylases. The nicotine-degrading bacteria were functionally annotated using databases. Nicotine dehydrogenase (NDH) was found by combining an activity tracking test and protein mass spectrometry analysis. The YC-7 NDH in the pathway was molecularly docked and functionally verified via the gene knockdown method. The binding ability of nicotine to nicotine-degrading enzymes was investigated using molecular docking. A high-efficiency nicotine-degrading bacteria, YC-7, was isolated and screened from tobacco, and the gene functions related to degradation were verified. This investigation provides a new hypothesis for screening nicotine-degrading bacteria and increases our knowledge of potential nicotine-degrading microbial sources.
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Affiliation(s)
- Ke Zhang
- College of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, 90 Wangcheng Road, Luoyang, 471023, Henan, China
| | - Mingshen Yin
- College of Life Science and Agricultural Engineering, Nanyang Normal University, 1638 Wolong Road, Nanyang, 473061, Henan, China
| | - Shengwei Lei
- College of Life Science and Agricultural Engineering, Nanyang Normal University, 1638 Wolong Road, Nanyang, 473061, Henan, China
| | - Hongxin Zhang
- College of Life Science and Agricultural Engineering, Nanyang Normal University, 1638 Wolong Road, Nanyang, 473061, Henan, China
| | - Xiaoyan Yin
- College of Life Science and Agricultural Engineering, Nanyang Normal University, 1638 Wolong Road, Nanyang, 473061, Henan, China
| | - Qiuhong Niu
- College of Life Science and Agricultural Engineering, Nanyang Normal University, 1638 Wolong Road, Nanyang, 473061, Henan, China.
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Zhang Z, Mei X, He Z, Xie X, Yang Y, Mei C, Xue D, Hu T, Shu M, Zhong W. Nicotine metabolism pathway in bacteria: mechanism, modification, and application. Appl Microbiol Biotechnol 2022; 106:889-904. [PMID: 35072735 DOI: 10.1007/s00253-022-11763-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/29/2021] [Accepted: 01/05/2022] [Indexed: 11/02/2022]
Abstract
Nicotine is a harmful pollutant mainly from the waste of tobacco factories. It is necessary to remove nicotine via high efficient strategies such as bioremediation. So far, an increasing number of nicotine degrading strains have been isolated. However, their degrading efficiency and tolerance to high content nicotine is still not high enough for application in real environment. Thus, the modification of nicotine metabolism pathway is obligated and requires comprehensive molecular insights into whole cell metabolism of nicotine degrading strains. Obviously, the development of multi-omics technology has accelerated the mechanism study on microbial degradation of nicotine and supplied more novel strategy of strains modification. So far, three pathways of nicotine degradation, pyridine pathway, pyrrolidine pathway, and the variant of pyridine and pyrrolidine pathway (VPP pathway), have been clearly identified in bacteria. Muti-omics analysis further revealed specific genome architecture, regulation mechanism, and specific genes or enzymes of three pathways, in different strains. Especially, muti-omics analysis revealed that functional modules coexisted in different genome loci and played additional roles on enhanced degradation efficiency in bacteria. Based on the above discovery, genomic editing strategy becomes more feasible to greatly improve bacterial degrading efficiency of nicotine.
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Affiliation(s)
- Zeling Zhang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Xiaotong Mei
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Ziliang He
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Xiya Xie
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Yang Yang
- Technology Center, China Tobacco Zhejiang Industrial Co., Ltd, Hangzhou, 310009, People's Republic of China.
| | - Chengyu Mei
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Dong Xue
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Tong Hu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Ming Shu
- Technology Center, China Tobacco Zhejiang Industrial Co., Ltd, Hangzhou, 310009, People's Republic of China
| | - Weihong Zhong
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China.
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5
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Li J, Shen M, Chen Z, Pan F, Yang Y, Shu M, Chen G, Jiao Y, Zhang F, Linhardt RJ, Zhong W. Expression and functional identification of two homologous nicotine dehydrogenases, NicA2 and Nox, from Pseudomonas sp. JY-Q. Protein Expr Purif 2020; 178:105767. [PMID: 32987121 DOI: 10.1016/j.pep.2020.105767] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/16/2020] [Accepted: 09/19/2020] [Indexed: 01/01/2023]
Abstract
Nicotine contamination in tobacco waste effluent (TWE) from tobacco industry is a serious threat to public health and environment. Microbial degradation is an impending approach to remove nicotine and transform it into some other high value chemicals. Pseudomonas sp. JY-Q exhibits high efficiency of degradation, which can degrade 5 g/L of nicotine within 24 h. In strain JY-Q, we found the co-occurrence of two homologous key enzymes NicA2 and Nox, which catalyze nicotine to N-methylmyosmine, and then to pseudooxylnicotine via simultaneous hydrolysis. In this study, recombinant NicA2 and Nox were expressed in E. coli BL21(DE3) and purified. In vitro, the activity of recombinant NicA2 and Nox was accelerated by adding co-factor NAD+, suggesting that they worked as dehydrogenases. The optimal reaction conditions, substrate affinity, catabolism efficiency, pH-stability and thermal-stability were determined. Nox showed lower efficiency, but at a higher stability level than NicA2. Nox exhibited wider pH range and higher temperature as optimal conditions for the enzymatic reaction. In addition, The Nox showed higher thermo-stability and acid-stability than that of NicA2. The study on enzymatic reaction kinetics showed that Nox had a lower Km and higher substrate affinity than NicA2. These results suggest that Nox plays more significant role than NicA2 in nicotine degradation in TWE, which usually is processed at low pH (4-5) and high temperature (above 40 °C). Genetic engineering is required to enhance the affinity and suitability of NicA2 for an increased additive effect on homologous NicA2 and Nox in strain JY-Q.
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Affiliation(s)
- Jun Li
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Mingjie Shen
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Zeyu Chen
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Fanda Pan
- Technology Center, China Tobacco Zhejiang Industrial Co., Ltd., Hangzhou, 310009, China
| | - Yang Yang
- Technology Center, China Tobacco Zhejiang Industrial Co., Ltd., Hangzhou, 310009, China.
| | - Ming Shu
- Technology Center, China Tobacco Zhejiang Industrial Co., Ltd., Hangzhou, 310009, China
| | - Guoqing Chen
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Yang Jiao
- Technology Center, Hangzhou Liqun Environmental Protection Paper Co., Ltd., Hangzhou, 310018, China
| | - Fuming Zhang
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Robert J Linhardt
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Weihong Zhong
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, China.
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6
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Zittel R, da Silva CP, Domingues CE, Seremeta DCH, da Cunha KM, de Campos SX. Availability of nutrients, removal of nicotine, heavy metals and pathogens in compounds obtained from smuggled cigarette tobacco compost associated with industrial sewage sludge. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 699:134377. [PMID: 31671305 DOI: 10.1016/j.scitotenv.2019.134377] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 09/07/2019] [Accepted: 09/08/2019] [Indexed: 06/10/2023]
Abstract
This study evaluated the chemical and microbiological properties of the compost obtained from the tobacco of smuggled cigarettes (SCT) and industrial sewage sludge (ISS). The composting was carried out in three reactors from different combinations of residues. The compost was analyzed to verify the percentage of nicotine removal, heavy metals, nutrient content and the inactivation of pathogenic microorganisms. The concentration of heavy metals: Ni, Cd, Cr, Pb, Cu, Zn, Fe and Mn in the composts obtained from the three reactors was below the values set for their use in soils. The NPK content ranged between 8.31% and 12.43%, indicating that the compost produced can add nutritional benefits to the plants. The nicotine removal, 72.6% (R1), 96.4% (R2) and 99.6% (R3) indicated efficiency of the composting process in reactors in the degradation of this substance. The results of pathogenic microorganism analysis showed that the three composts obtained from reactors R1, R2 and R3 met the sanitation standards for agricultural use according to the normative of maximum limits of contaminants allowed in organic compounds. These results show that the treatment of SCT and ISS by the process of composting in reactors may be an ecologically viable alternative.
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Affiliation(s)
- Rosimara Zittel
- Research Group on Environmental and Sanitary Analytical Chemistry (QAAS), Ponta Grossa State University, CEP 84130-900 Ponta Grossa, PR, Brazil.
| | - Cleber Pinto da Silva
- Research Group on Environmental and Sanitary Analytical Chemistry (QAAS), Ponta Grossa State University, CEP 84130-900 Ponta Grossa, PR, Brazil.
| | - Cinthia Eloise Domingues
- Research Group on Environmental and Sanitary Analytical Chemistry (QAAS), Ponta Grossa State University, CEP 84130-900 Ponta Grossa, PR, Brazil
| | - Daniele Cristina Hass Seremeta
- Research Group on Environmental and Sanitary Analytical Chemistry (QAAS), Ponta Grossa State University, CEP 84130-900 Ponta Grossa, PR, Brazil
| | | | - Sandro Xavier de Campos
- Research Group on Environmental and Sanitary Analytical Chemistry (QAAS), Ponta Grossa State University, CEP 84130-900 Ponta Grossa, PR, Brazil.
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Karimi S, Ma S, Qu M, Chen B, Ramig K, Greer EM, Szalda DJ, Neary MC, Berkowitz WF, Subramaniam G. A new synthesis of biologically active pyrroles: Formal synthesis of pentabromopseudilin, bimetopyrol, and several antitubercular agents. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sasan Karimi
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Shuai Ma
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
| | - Michelle Qu
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Biling Chen
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Keith Ramig
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - Edyta M. Greer
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - David J. Szalda
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - Michelle C. Neary
- Department of ChemistryHunter College of the City University of New York New York New York
| | - William F. Berkowitz
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
| | - Gopal Subramaniam
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
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8
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Li J, Wang J, Li S, Yi F, Xu J, Shu M, Shen M, Jiao Y, Tao F, Zhu C, Zhang H, Qian S, Zhong W. Co-occurrence of functional modules derived from nicotine-degrading gene clusters confers additive effects in Pseudomonas sp. JY-Q. Appl Microbiol Biotechnol 2019; 103:4499-4510. [DOI: 10.1007/s00253-019-09800-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 02/06/2023]
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9
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Fang L, Shi T, Chen Y, Wu X, Zhang C, Tang X, Li QX, Hua R. Kinetics and Catabolic Pathways of the Insecticide Chlorpyrifos, Annotation of the Degradation Genes, and Characterization of Enzymes TcpA and Fre in Cupriavidus nantongensis X1 T. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:2245-2254. [PMID: 30721044 DOI: 10.1021/acs.jafc.9b00173] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chlorpyrifos is one of the most used organophosphorus insecticides. It is commonly degraded to 3,5,6-trichloro-2-pyridinol (TCP), which is water-soluble and toxic. Bacteria can degrade chlorpyrifos and TCP, but the biodegradation mechanism has not been well-characterized. Recently isolated Cupriavidus nantongensis X1T can completely degrade 100 mg/L chlorpyrifos and 20 mg/L TCP with half-lives of 6 and 8 h, respectively. We annotated a complete gene cluster responsible for TCP degradation in recently sequenced strain X1T. Two key genes, tcpA and fre, were cloned from X1T and transferred and expressed in Escherichia coli BL21(DE3). Degradation of TCP by X1T whole cell was compared with that by the enzymes 2,4,6-trichlorophenol monooxygenase and NAD(P)H:flavin reductase expressed and purified from E. coli BL21(DE3). Novel metabolites of TCP were isolated and characterized, indicating stepwise dechlorination of TCP, which was confirmed by TCP disappearance, mass balance, and detection and formation kinetics of chloride ion from TCP.
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Affiliation(s)
- Liancheng Fang
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Taozhong Shi
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Yifei Chen
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Xiangwei Wu
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Chao Zhang
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Xinyun Tang
- School of Life Science , Anhui Agricultural University , Hefei Anhui 230036 , China
| | - Qing X Li
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
- Department of Molecular Biosciences and Bioengineering , University of Hawaii at Manoa , 1955 East-West Road , Honolulu , Hawaii 96822 , United States
| | - Rimao Hua
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
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Zhang L, Hang P, Hu Q, Chen XL, Zhou XY, Chen K, Jiang JD. Degradation of Phenylurea Herbicides by a Novel Bacterial Consortium Containing Synergistically Catabolic Species and Functionally Complementary Hydrolases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:12479-12489. [PMID: 30407808 DOI: 10.1021/acs.jafc.8b03703] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Phenylurea herbicides (PHs) are frequently detected as major water contaminants in areas where there is extensive use. In this study, Diaphorobacter sp. strain LR2014-1, which initially hydrolyzes linuron to 3,4-dichloroanaline, and Achromobacter sp. strain ANB-1, which further mineralizes the produced aniline derivatives, were isolated from a linuron-mineralizing consortium despite being present at low abundance in the community. The synergistic catabolism of linuron by the consortium containing these two strains resulted in more efficient catabolism of linuron and growth of both strains. Strain LR2014-1 harbors two evolutionary divergent hydrolases from the amidohydrolase superfamily Phh and the amidase superfamily TccA2, which functioned complementarily in the hydrolysis of various types of PHs, including linuron ( N-methoxy- N-methyl-substituted), diuron, chlorotoluron, fluomethuron ( N, N-dimethyl-substituted), and siduron. These findings show that a bacterial consortium can contain catabolically synergistic species for PH mineralization, and one strain could harbor functionally complementary hydrolases for a broadened substrate range.
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Affiliation(s)
- Long Zhang
- Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , 210095 Nanjing , China
| | - Ping Hang
- Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , 210095 Nanjing , China
| | - Qiang Hu
- Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , 210095 Nanjing , China
| | - Xiao-Long Chen
- Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , 210095 Nanjing , China
| | - Xi-Yi Zhou
- Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , 210095 Nanjing , China
| | - Kai Chen
- Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , 210095 Nanjing , China
| | - Jian-Dong Jiang
- Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , 210095 Nanjing , China
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization , Nanjing Agricultural University , Nanjing 210095 , China
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