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Zhang S, Liang Z, Wang X, Ye Z, Li G, An T. Bioaerosols in an industrial park and the adjacent houses: Dispersal between indoor/outdoor, the impact of air purifier, and health risk reduction. ENVIRONMENT INTERNATIONAL 2023; 172:107778. [PMID: 36724713 DOI: 10.1016/j.envint.2023.107778] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Inhaling airborne pathogens may cause severe epidemics showing huge threats to indoor dwellings residents. The ventilation, environmental parameters, and human activities would affect the abundance and pathogenicity of bioaerosols in indoor. However, people know little about the indoor airborne microbes especially pathogens near the industrial park polluted with organics and heavy metals. Herein, the indoor bioaerosols' community composition, source and influencing factors near an electronic waste (e-waste) industrial park were investigated. Results showed that the average bioaerosol level in the morning was lower than evening. Bioaerosol concentration and activity in indoor (1936 CFU/m3 and 7.62 × 105 ng/m3 sodium fluorescein in average) were lower than the industrial park (4043 CFU/m3 and 7.77 × 105 ng/m3 sodium fluorescein), and higher microbial viability may be caused by other pollutants generated during e-waste dismantling process. Fluorescent biological aerosol particles occupied 17.6%-23.7% of total particles, indicating that most particles were non-biological. Bacterial communities were richer and more diverse than fungi. Furthermore, Bacillus and Cladosporium were the dominant indoor pathogens, and pathogenic fungi were more influenced by environmental factors than bacteria. SourceTracker analysis indicates that outdoor was the main source of indoor bioaerosols. The hazard quotient (<1) of airborne microbes through inhalation was negligible, but long-term exposure to pathogens could be harmful. Air purifiers could effectively remove the airborne fungi and spheroid bacteria than cylindrical bacteria, but open doors and windows would reduce the purification efficiency. This study is great important for risk assessments and control of indoor bioaerosols near industrial park.
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Affiliation(s)
- Simeng Zhang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhishu Liang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaolong Wang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Zikai Ye
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Guiying Li
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - Taicheng An
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
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2
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Kharangate-Lad A, Bhosle S. Characterization of bioemulsifying EPS from Halobacillus trueperi MXM-16, a halophilic adhered bacterial isolate from the mangrove ecosystem. J Basic Microbiol 2022; 62:1446-1456. [PMID: 36261394 DOI: 10.1002/jobm.202200352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/29/2022] [Accepted: 10/01/2022] [Indexed: 11/07/2022]
Abstract
Exopolymeric substances (EPS) produced by bacterial cells play a crucial role in the interaction of the cells with the surrounding environment. Halobacillus trueperi manxer mangrove-16, an adhered bacterial isolate from the mangrove ecosystem was found to produce EPS that was observed by Alcian blue staining and congo red-coomassie blue agar. The EPS of the bacterial isolate exhibited emulsifying properties. Purification of the EPS by dialysis showed an emulsification index of 80% with hexadecane. Qualitative analysis and Fourier's Infrared spectroscopy (FTIR) revealed that the EPS was a glycoprotein in nature. The EPS showed no surface-active properties. Further exploration of the potential of the EPS interaction with metal solutions showed the ability of the bioemulsifier to cause precipitation in the metal solutions and particularly change the color of the Chromium (VI) solution. The scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDS) of the cells and EPS particularly indicated the interaction of the EPS with the (Fe0 ) zerovalent iron nanoparticles and its effect on the cells and EPS of the bacteria. It is therefore concluded that the EPS is a crucial component that anchors the bacteria to particulate matter in the mangrove ecosystem and also plays an important role in interaction with metals and hydrocarbons.
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Affiliation(s)
- Amrita Kharangate-Lad
- School of Chemical Sciences, Biochemistry, Goa University, Taleigao-Panaji, Goa, India
| | - Saroj Bhosle
- Department of Microbiology, Goa University, Taleigao-Panaji, Goa, India
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3
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Sunilkumar CR, Stephen-Victor E, Naripogu KB, Samanth Kumar J, Nuthan BR, Marulasiddaswamy KM, Kini KR, Geetha N. Differential Multi-cellularity Is Required for the Adaptation for Bacillus licheniformis to Withstand Heavy Metals Toxicity. Indian J Microbiol 2021; 61:524-529. [PMID: 34744208 DOI: 10.1007/s12088-021-00958-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/14/2021] [Indexed: 12/28/2022] Open
Abstract
Bacillus licheniformis is a multi-metal tolerant bacteria, isolated from the paddy rhizospheric soil sample. Upon the multiple metal toxicity, B. licheniformis altered their phenotypic/morphogenesis. Here we examined the effects of cadmium (Cd2+), chromium (Cr2+), and mercury (Hg2+) on the morphogenesis of B. licheniformis in comparison to control. We found that the ability of bacteria to grow effectively in presence of cadmium and chromium comes at a cost of acquiring cell density-driven mobility and reformation of filamentous to donut shape respectively. In particular, when bacteria grown on mercury it showed the bacteriostatic strategy to resist mercury. Furthermore, the findings suggest a large variation in the production of exo-polysaccharides (EPS) and suggest the possible role of EPS in gaining resistance to cadmium and chromium. Together this study identifies previously unknown characteristics of B. licheniformis to participate in bioremediation and provides the first evidence on positive effects of bacterial morphogenesis and the involvement of EPS in bacteria to resisting metal toxicity.
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Affiliation(s)
- Channarayapatna-Ramesh Sunilkumar
- Global Association of Scientific Young Minds (GASYM), Mysuru, India.,Research Institute for Interdisciplinary Sciences, Okayama University, Tsushima-naka, Kita-ku, Okayama 700-8530 Japan.,Laboratory of Microbial Metabolism and Stress Response, Department of Biotechnology, SDM and MMK College for Women, Mysuru, India
| | - Emmanuel Stephen-Victor
- Global Association of Scientific Young Minds (GASYM), Mysuru, India.,Department of Pediatrics, Harvard Medical School, Boston, USA
| | - Kishore Babu Naripogu
- Global Association of Scientific Young Minds (GASYM), Mysuru, India.,Research Institute for Interdisciplinary Sciences, Okayama University, Tsushima-naka, Kita-ku, Okayama 700-8530 Japan
| | - J Samanth Kumar
- Department of Studies in Biotechnology, Manasagangotri, University of Mysore, Mysuru, India
| | - Bettadapura Rameshgowda Nuthan
- Global Association of Scientific Young Minds (GASYM), Mysuru, India.,Department of Studies in Microbiology, Manasagangotri, University of Mysore, Mysuru, India
| | - K M Marulasiddaswamy
- Global Association of Scientific Young Minds (GASYM), Mysuru, India.,Department of Studies in Biotechnology, Manasagangotri, University of Mysore, Mysuru, India
| | | | - Nagaraja Geetha
- Global Association of Scientific Young Minds (GASYM), Mysuru, India.,Department of Studies in Biotechnology, Manasagangotri, University of Mysore, Mysuru, India
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4
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Liu N, Li D, Li K, Wang L, Xu R, Zhang J, Yang B. Enhanced biodegradation of chlorobenzene via combined Fe 3+ and Zn 2+ based on rhamnolipid solubilisation. J Environ Sci (China) 2021; 103:108-118. [PMID: 33743893 DOI: 10.1016/j.jes.2020.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 06/12/2023]
Abstract
Biotrickling filters (BTFs) for hydrophobic chlorobenzene (CB) purification are limited by mass transfer and biodegradation. The CB mass transfer rate could be improved by 150 mg/L rhamnolipids. This study evaluated the combined use of Fe3+ and Zn2+ to enhance biodegradation in a BTF over 35 day. The effects of these trace elements were analysed under different inlet concentrations (250, 600, 900, and 1200 mg/L) and empty bed residence times (EBRTs; 60, 45, and 32 sec). Batch experiments showed that the promoting effects of Fe3+/Zn2+ on microbial growth and metabolism were highest for 3 mg/L Fe3+ and 2 mg/L Zn2+, followed by 2 mg/L Zn2+, and lowest at 3 mg/L Fe3+. Compared to BTF in the absence of Fe3+ and Zn2+, the average CB elimination capacity and removal efficiency in the presence of Fe3+ and Zn2+ increased from 61.54 to 65.79 g/(m3⋅hr) and from 80.93% to 89.37%, respectively, at an EBRT of 60 sec. The average removal efficiency at EBRTs of 60, 45, and 32 sec increased by 2.89%, 5.63%, and 11.61%, respectively. The chemical composition (proteins (PN), polysaccharides (PS)) and functional groups of the biofilm were analysed at 60, 81, and 95 day. Fe3+ and Zn2+ significantly enhanced PN and PS secretion, which may have promoted CB adsorption and biodegradation. High-throughput sequencing revealed the promoting effect of Fe3+ and Zn2+ on bacterial populations. The combination of Fe3+ and Zn2+ with rhamnolipids was an efficient method for improving CB biodegradation in BTFs.
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Affiliation(s)
- Na Liu
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Dan Li
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Kang Li
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Liping Wang
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China.
| | - Ruiwei Xu
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Jiaming Zhang
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Bairen Yang
- School of Environmental Science and Engineering, Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, China
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5
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Saia SM, Carrick HJ, Buda AR, Regan JM, Walter MT. Critical Review of Polyphosphate and Polyphosphate Accumulating Organisms for Agricultural Water Quality Management. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:2722-2742. [PMID: 33559467 DOI: 10.1021/acs.est.0c03566] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Despite ongoing management efforts, phosphorus (P) loading from agricultural landscapes continues to impair water quality. Wastewater treatment research has enhanced our knowledge of microbial mechanisms influencing P cycling, especially regarding microbes known as polyphosphate accumulating organisms (PAOs) that store P as polyphosphate (polyP) under oxic conditions and release P under anoxic conditions. However, there is limited application of PAO research to reduce agricultural P loading and improve water quality. Herein, we conducted a meta-analysis to identify articles in Web of Science on polyP and its use by PAOs across five disciplines (i.e., wastewater treatment, terrestrial, freshwater, marine, and agriculture). We also summarized research that provides preliminary support for PAO-mediated P cycling in natural habitats. Terrestrial, freshwater, marine, and agriculture disciplines had fewer polyP and PAO articles compared to wastewater treatment, with agriculture consistently having the least. Most meta-analysis articles did not overlap disciplines. We found preliminary support for PAOs in natural habitats and identified several knowledge gaps and research opportunities. There is an urgent need for interdisciplinary research linking PAOs, polyP, and oxygen availability with existing knowledge of P forms and cycling mechanisms in natural and agricultural environments to improve agricultural P management strategies and achieve water quality goals.
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Affiliation(s)
- Sheila M Saia
- Depatment of Biological and Agricultural Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Hunter J Carrick
- Department of Biology and Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, Michigan 48859, United States
| | - Anthony R Buda
- Pasture Systems and Watershed Management Research Unit, Agricultural Research Service, United States Department of Agriculture, University Park, Pennsylvania 16802, United States
| | - John M Regan
- Department of Civil and Environmental Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - M Todd Walter
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
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6
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De Vrieze J, De Mulder T, Matassa S, Zhou J, Angenent LT, Boon N, Verstraete W. Stochasticity in microbiology: managing unpredictability to reach the Sustainable Development Goals. Microb Biotechnol 2020; 13:829-843. [PMID: 32311222 PMCID: PMC7264747 DOI: 10.1111/1751-7915.13575] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/04/2020] [Accepted: 03/25/2020] [Indexed: 01/06/2023] Open
Abstract
Pure (single) cultures of microorganisms and mixed microbial communities (microbiomes) have been important for centuries in providing renewable energy, clean water and food products to human society and will continue to play a crucial role to pursue the Sustainable Development Goals. To use microorganisms effectively, microbial engineered processes require adequate control. Microbial communities are shaped by manageable deterministic processes, but also by stochastic processes, which can promote unforeseeable variations and adaptations. Here, we highlight the impact of stochasticity in single culture and microbiome engineering. First, we discuss the concepts and mechanisms of stochasticity in relation to microbial ecology of single cultures and microbiomes. Second, we discuss the consequences of stochasticity in relation to process performance and human health, which are reflected in key disadvantages and important opportunities. Third, we propose a suitable decision tool to deal with stochasticity in which monitoring of stochasticity and setting the boundaries of stochasticity by regulators are central aspects. Stochasticity may give rise to some risks, such as the presence of pathogens in microbiomes. We argue here that by taking the necessary precautions and through clever monitoring and interpretation, these risks can be mitigated.
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Affiliation(s)
- Jo De Vrieze
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
| | | | - Silvio Matassa
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125, Naples, Italy
| | - Jizhong Zhou
- Institute for Environmental Genomics, Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, 73019, USA
| | - Largus T Angenent
- Center for Applied Geosciences, University of Tübingen, Tübingen, Germany
| | - Nico Boon
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
| | - Willy Verstraete
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- Avecom NV, Industrieweg 122P, Wondelgem, 9032, Belgium
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7
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Genomic and biotechnological insights on stress-linked polyphosphate production induced by chromium(III) in Ochrobactrum anthropi DE2010. World J Microbiol Biotechnol 2020; 36:97. [DOI: 10.1007/s11274-020-02875-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 06/21/2020] [Indexed: 12/12/2022]
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8
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A Statistical Tool for the Optimization of Parameters for the Degradation of Mono-aromatic Pollutants by A Formulated Microbial Consortium. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.4.39] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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9
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Sowani H, Kulkarni M, Zinjarde S. Harnessing the catabolic versatility of Gordonia species for detoxifying pollutants. Biotechnol Adv 2019; 37:382-402. [DOI: 10.1016/j.biotechadv.2019.02.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 01/12/2019] [Accepted: 02/11/2019] [Indexed: 11/26/2022]
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10
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Ren L, Jia Y, Zhang R, Lin Z, Zhen Z, Hu H, Yan Y. Insight Into Metabolic Versatility of an Aromatic Compounds-Degrading Arthrobacter sp. YC-RL1. Front Microbiol 2018; 9:2438. [PMID: 30364317 PMCID: PMC6193132 DOI: 10.3389/fmicb.2018.02438] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 09/24/2018] [Indexed: 01/11/2023] Open
Abstract
The genus Arthrobacter is ubiquitously distributed in different natural environments. Many xenobiotic-degrading Arthrobacter strains have been isolated and described; however, few have been systematically characterized with regard to multiple interrelated metabolic pathways and the genes that encode them. In this study, the biodegradability of seven aromatic compounds by Arthrobacter sp. YC-RL1 was investigated. Strain YC-RL1 could efficiently degrade p-xylene (PX), naphthalene, phenanthrene, biphenyl, p-nitrophenol (PNP), and bisphenol A (BPA) under both separated and mixed conditions. Based on the detected metabolic intermediates, metabolic pathways of naphthalene, biphenyl, PNP, and BPA were proposed, which indicated that strain YC-RL1 harbors systematic metabolic pathways toward aromatic compounds. Further, genomic analysis uncovered part of genes involved in the proposed pathways. Both intradiol and extradiol ring-cleavage dioxygenase genes were identified in the genome of strain YC-RL1. Meanwhile, gene clusters predicted to encode the degradation of biphenyl (bph), para-substituted phenols (npd) and protocatechuate (pca) were identified, and bphA1A2BCD was proposed to be a novel biphenyl-degrading gene cluster. The complete metabolic pathway of biphenyl was deduced via intermediates and functional gene analysis (bph and pca gene clusters). One of the these genes encoding ring-cleavage dioxygenase in bph gene cluster, a predicted 2,3-dihydroxybiphenyl 1,2-dioxygenase (BphC) gene, was cloned and its activity was confirmed by heterologous expression. This work systematically illuminated the metabolic versatility of aromatic compounds in strain YC-RL1 via the combination of metabolites identification, genomics analysis and laboratory experiments. These results suggested that strain YC-RL1 might be a promising candidate for the bioremediation of aromatic compounds pollution sites.
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Affiliation(s)
- Lei Ren
- Agricultural College, Guangdong Ocean University, Zhanjiang, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yang Jia
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Rui Zhang
- Agricultural College, Guangdong Ocean University, Zhanjiang, China.,Shenzhen Research Institute of Guangdong Ocean University, Shenzhen, China
| | - Zhong Lin
- Agricultural College, Guangdong Ocean University, Zhanjiang, China.,Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang, China
| | - Zhen Zhen
- Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Hanqiao Hu
- Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Yanchun Yan
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
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11
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Heine T, Zimmerling J, Ballmann A, Kleeberg SB, Rückert C, Busche T, Winkler A, Kalinowski J, Poetsch A, Scholtissek A, Oelschlägel M, Schmidt G, Tischler D. On the Enigma of Glutathione-Dependent Styrene Degradation in Gordonia rubripertincta CWB2. Appl Environ Microbiol 2018; 84:e00154-18. [PMID: 29475871 PMCID: PMC5930330 DOI: 10.1128/aem.00154-18] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 02/19/2018] [Indexed: 02/05/2023] Open
Abstract
Among bacteria, only a single styrene-specific degradation pathway has been reported so far. It comprises the activity of styrene monooxygenase, styrene oxide isomerase, and phenylacetaldehyde dehydrogenase, yielding phenylacetic acid as the central metabolite. The alternative route comprises ring-hydroxylating enzymes and yields vinyl catechol as central metabolite, which undergoes meta-cleavage. This was reported to be unspecific and also allows the degradation of benzene derivatives. However, some bacteria had been described to degrade styrene but do not employ one of those routes or only parts of them. Here, we describe a novel "hybrid" degradation pathway for styrene located on a plasmid of foreign origin. As putatively also unspecific, it allows metabolizing chemically analogous compounds (e.g., halogenated and/or alkylated styrene derivatives). Gordonia rubripertincta CWB2 was isolated with styrene as the sole source of carbon and energy. It employs an assembled route of the styrene side-chain degradation and isoprene degradation pathways that also funnels into phenylacetic acid as the central metabolite. Metabolites, enzyme activity, genome, transcriptome, and proteome data reinforce this observation and allow us to understand this biotechnologically relevant pathway, which can be used for the production of ibuprofen.IMPORTANCE The degradation of xenobiotics by bacteria is not only important for bioremediation but also because the involved enzymes are potential catalysts in biotechnological applications. This study reveals a novel degradation pathway for the hazardous organic compound styrene in Gordonia rubripertincta CWB2. This study provides an impressive illustration of horizontal gene transfer, which enables novel metabolic capabilities. This study presents glutathione-dependent styrene metabolization in an (actino-)bacterium. Further, the genomic background of the ability of strain CWB2 to produce ibuprofen is demonstrated.
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Affiliation(s)
- Thomas Heine
- Institute of Biosciences, TU Bergakademie Freiberg, Freiberg, Germany
| | | | - Anne Ballmann
- Institute of Biosciences, TU Bergakademie Freiberg, Freiberg, Germany
| | | | - Christian Rückert
- Technologieplattform Genomik, Centrum für Biotechnologie (CeBiTec), Universität Bielefeld, Bielefeld, Germany
| | - Tobias Busche
- Technologieplattform Genomik, Centrum für Biotechnologie (CeBiTec), Universität Bielefeld, Bielefeld, Germany
| | - Anika Winkler
- Technologieplattform Genomik, Centrum für Biotechnologie (CeBiTec), Universität Bielefeld, Bielefeld, Germany
| | - Jörn Kalinowski
- Technologieplattform Genomik, Centrum für Biotechnologie (CeBiTec), Universität Bielefeld, Bielefeld, Germany
| | - Ansgar Poetsch
- Plant Biochemistry, Ruhr University Bochum, Bochum, Germany
- School of Biomedical and Healthcare Sciences, Plymouth University, Plymouth, United Kingdom
| | - Anika Scholtissek
- Institute of Biosciences, TU Bergakademie Freiberg, Freiberg, Germany
| | | | - Gert Schmidt
- Institut für Keramik, Glas- und Baustofftechnik, TU Bergakademie Freiberg, Freiberg, Germany
| | - Dirk Tischler
- Institute of Biosciences, TU Bergakademie Freiberg, Freiberg, Germany
- Microbial Biotechnology, Ruhr University Bochum, Bochum, Germany
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12
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Xu P, Xiao E, Xu D, Li J, Zhang Y, Dai Z, Zhou Q, Wu Z. Enhanced phosphorus reduction in simulated eutrophic water: a comparative study of submerged macrophytes, sediment microbial fuel cells, and their combination. ENVIRONMENTAL TECHNOLOGY 2018; 39:1144-1157. [PMID: 28443365 DOI: 10.1080/09593330.2017.1323955] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 04/23/2017] [Indexed: 06/07/2023]
Abstract
The phosphorus reduction in water column was attempted by integrating sediment microbial fuel cells (SMFCs) with the submerged macrophyte Vallisneria spiralis. A comparative study was conducted to treat simulated water rich in phosphate with a control and three treatments: SMFC alone (SMFC), submerged macrophytes alone (macophyte), and combined macrophytes and fuel cells (M-SMFC). All treatments promoted phosphorus flux from the water column to sediments. Maximum phosphorus reduction was obtained in proportion to the highest stable phosphorus level in sediments in M-SMFC. For the initial phosphate concentrations of 0.2, 1, 2, and 4 mg/L, average phosphate values in the overlying water during four phases decreased by 33.3% (25.0%, 8.3%), 30.8% (5.1%, 17.9%), 36.5% (27.8%, 15.7%), and 36.2% (0.7%, 22.1%) for M-SMFC (macrophyte, SMFC), compared with the control. With macrophyte treatment, the obvious phosphorus release from sediments was observed during the declining period. However, such phenomenon was significantly inhibited with M-SMFC. The electrogenesis bacteria achieved stronger phosphorus adsorption and assimilation was significantly enriched on the closed-circuit anodes. The higher abundance of Geobacter and Pseudomonas in M-SMFC might in part explain the highest phosphorus reduction in the water column. M-SMFC treatment could be promising to control the phosphorus in eutrophic water bodies.
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Affiliation(s)
- Peng Xu
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
- b University of Chinese Academy of Sciences , Beijing , People' Republic of China
| | - Enrong Xiao
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
| | - Dan Xu
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
- c College of Resources and Environmental Engineering , Wuhan University of Technology , Wuhan , People's Republic of China
| | - Juan Li
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
- c College of Resources and Environmental Engineering , Wuhan University of Technology , Wuhan , People's Republic of China
| | - Yi Zhang
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
| | - Zhigang Dai
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
| | - Qiaohong Zhou
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
| | - Zhenbin Wu
- a State Key Laboratory of Freshwater Ecology and Biotechnology , Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan , People's Republic of China
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Streptomyces spp. in the biocatalysis toolbox. Appl Microbiol Biotechnol 2018; 102:3513-3536. [PMID: 29502181 DOI: 10.1007/s00253-018-8884-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/17/2018] [Accepted: 02/19/2018] [Indexed: 02/07/2023]
Abstract
About 20,100 research publications dated 2000-2017 were recovered searching the PubMed and Web of Science databases for Streptomyces, which are the richest known source of bioactive molecules. However, these bacteria with versatile metabolism are powerful suppliers of biocatalytic tools (enzymes) for advanced biotechnological applications such as green chemical transformations and biopharmaceutical and biofuel production. The recent technological advances, especially in DNA sequencing coupled with computational tools for protein functional and structural prediction, and the improved access to microbial diversity enabled the easier access to enzymes and the ability to engineer them to suit a wider range of biotechnological processes. The major driver behind a dramatic increase in the utilization of biocatalysis is sustainable development and the shift toward bioeconomy that will, in accordance to the UN policy agenda "Bioeconomy to 2030," become a global effort in the near future. Streptomyces spp. already play a significant role among industrial microorganisms. The intention of this minireview is to highlight the presence of Streptomyces in the toolbox of biocatalysis and to give an overview of the most important advances in novel biocatalyst discovery and applications. Judging by the steady increase in a number of recent references (228 for the 2000-2017 period), it is clear that biocatalysts from Streptomyces spp. hold promises in terms of valuable properties and applicative industrial potential.
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Sowani H, Kulkarni M, Zinjarde S. An insight into the ecology, diversity and adaptations of Gordonia species. Crit Rev Microbiol 2017; 44:393-413. [PMID: 29276839 DOI: 10.1080/1040841x.2017.1418286] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The bacterial genus Gordonia encompasses a variety of versatile species that have been isolated from a multitude of environments. Gordonia was described as a genus about 20 years ago, and to date, 39 different species have been identified. Gordonia is recognized for symbiotic associations with multiple hosts, including aquatic (marine and fresh water) biological forms and terrestrial invertebrates. Some Gordonia species isolated from clinical specimens are known to be opportunistic human pathogens causing secondary infections in immunocompromised and immunosuppressive individuals. They are also predominant in mangrove ecosystems and terrestrial sites. Members of the genus Gordonia are ecologically adaptable and show marked variations in their properties and products. They generate diverse bioactive compounds and produce a variety of extracellular enzymes. In addition, production of surface active compounds and carotenoid pigments allows this group of microorganisms to grow under different conditions. Several isolates from water and soil have been implicated in bioremediation of different environments and plant associated species have been explored for agricultural applications. This review highlights the prevalence of the members of this versatile genus in diverse environments, details its associations with living forms, summarizes the biotechnologically relevant products that can be obtained and discusses the salient genomic features that allow this Actinomycete to survive in different ecological niches.
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Affiliation(s)
- Harshada Sowani
- a Department of Chemistry , Biochemistry Division Savitribai Phule Pune University , Pune , India
| | - Mohan Kulkarni
- a Department of Chemistry , Biochemistry Division Savitribai Phule Pune University , Pune , India
| | - Smita Zinjarde
- b Institute of Bioinformatics and Biotechnology , Savitribai Phule Pune University , Pune , India.,c Department of Microbiology , Savitribai Phule Pune University , Pune , India
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15
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Šimonovičová A, Ferianc P, Vojtková H, Pangallo D, Hanajík P, Kraková L, Feketeová Z, Čerňanský S, Okenicová L, Žemberyová M, Bujdoš M, Pauditšová E. Alkaline Technosol contaminated by former mining activity and its culturable autochthonous microbiota. CHEMOSPHERE 2017; 171:89-96. [PMID: 28006667 PMCID: PMC5267631 DOI: 10.1016/j.chemosphere.2016.11.131] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 11/17/2016] [Accepted: 11/26/2016] [Indexed: 05/31/2023]
Abstract
Technosols or technogenic substrates contaminated by potentially toxic elements as a result of iron mining causes not only contamination of the surrounding ecosystem but may also lead to changes of the extent, abundance, structure and activity of soil microbial community. Microbial biomass were significantly inhibited mainly by exceeding limits of potentially toxic metals as arsenic (in the range of 343-511 mg/kg), copper (in the range of 7980-9227 mg/kg), manganese (in the range of 2417-2670 mg/kg), alkaline and strong alkaline pH conditions and minimal contents of organic nutrients. All of the 14 bacterial isolates, belonged to 4 bacterial phyla, Actinobacteria, Firmicutes; β- and γ-Proteobacteria. Thirteen genera and 20 species of microscopic filamentous fungi were recovered. The most frequently found species belonged to genera Aspergillus (A. clavatus, A. niger, A. flavus, A. versicolor, Aspergillus sp.) with the dominating A. niger in all samples, and Penicillium (P. canescens, P. chrysogenum, P. spinulosum, Penicillium sp.). Fungal plant pathogens occurred in all surface samples. These included Bjerkandera adustata, Bionectria ochloleuca with anamorph state Clonostachys pseudochloleuca, Lewia infectoria, Phoma macrostoma and Rhizoctonia sp.
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Affiliation(s)
- A Šimonovičová
- Department of Soil Science, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic.
| | - P Ferianc
- Institut of Molecular Biology, Slovak Academy of Sciences, 845 51 Bratislava, Slovak Republic
| | - H Vojtková
- Institute of Environmental Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, Czech Republic
| | - D Pangallo
- Institut of Molecular Biology, Slovak Academy of Sciences, 845 51 Bratislava, Slovak Republic
| | - P Hanajík
- Department of Soil Science, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic
| | - L Kraková
- Institut of Molecular Biology, Slovak Academy of Sciences, 845 51 Bratislava, Slovak Republic
| | - Z Feketeová
- Department of Soil Science, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic
| | - S Čerňanský
- Department of Environmental Ecology, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic
| | - L Okenicová
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic
| | - M Žemberyová
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic
| | - M Bujdoš
- Institute of Laboratory Research on Geomaterials, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic
| | - E Pauditšová
- Department of Landscape Ecology, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic
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Skariyachan S, Megha M, Kini MN, Mukund KM, Rizvi A, Vasist K. Selection and screening of microbial consortia for efficient and ecofriendly degradation of plastic garbage collected from urban and rural areas of Bangalore, India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:4174. [PMID: 25504187 DOI: 10.1007/s10661-014-4174-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Accepted: 11/17/2014] [Indexed: 06/04/2023]
Abstract
Industrialization and urbanization have led to massive accumulation of plastic garbage all over India. The persistence of plastic in soil and aquatic environment has become ecological threat to the metropolitan city such as Bangalore, India. Present study investigates an ecofriendly, efficient and cost-effective approach for plastic waste management by the screening of novel microbial consortia which are capable of degrading plastic polymers. Plastic-contaminated soil and water samples were collected from six hot spots of urban and rural areas of Bangalore. The plastic-degrading bacteria were enriched, and degradation ability was determined by zone of clearance method. The percentage of polymer degradation was initially monitored by weight loss method, and the main isolates were characterized by standard microbiology protocols. These isolates were used to form microbial consortia, and the degradation efficiency of the consortia was compared with individual isolate and known strains obtained from the Microbial Type Culture Collection (MTCC) and Gene Bank, India. One of the main enzymes responsible for polymer degradation was identified, and the biodegradation mechanism was hypothesized by bioinformatics studies. From this study, it is evident that the bacteria utilized the plastic polymer as a sole source of carbon and showed 20-50% weight reduction over a period of 120 days. The two main bacteria responsible for the degradation were microbiologically characterized to be Pseudomonas spp. These bacteria could grow optimally at 37 °C in pH 9.0 and showed 35-40% of plastic weight reduction over 120 days. These isolates were showed better degradation ability than known strains from MTCC. The current study further revealed that the microbial consortia formulated by combining Psuedomonas spp. showed 40 plastic weight reduction over a period of 90 days. Further, extracellular lipase, one of the main enzymes responsible for polymer degradation, was identified. The computational docking studies suggested that polyethylene glycol and polystyrene present in the plastics might have good interaction towards the microbial lipase with stable binding and interacting forces which probably could be one of the reasons for the degradative mechanisms.
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Affiliation(s)
- Sinosh Skariyachan
- R & D Centre, Department of Biotechnology Engineering, Dayananda Sagar Institutions, Bangalore, Karnataka, 560 078, India,
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Kolmakova OV, Gladyshev MI, Rozanov AS, Peltek SE, Trusova MY. Spatial biodiversity of bacteria along the largest Arctic river determined by next-generation sequencing. FEMS Microbiol Ecol 2014; 89:442-50. [PMID: 24848736 DOI: 10.1111/1574-6941.12355] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 04/29/2014] [Accepted: 05/11/2014] [Indexed: 11/28/2022] Open
Abstract
The biodiversity of bacterial communities along the Yenisei River at section c. 1800 km was studied using next-generation sequencing of 16S rRNA genes and common biodiversity indices. Overall, 3022 unique operational taxonomic units were identified. Actinobacteria and Proteobacteria were the dominant phyla at all sampling sites. The highest alpha-diversity values were found in the middle section of the studied river. The beta-diversity of bacterial assemblages in the river was related to the surrounding landscape (biome): three distinctly different bacterial assemblages occurred in sections of the river, situated in mountain taiga, plain taiga and in a region of permafrost, covered by forest-tundra and tundra. Tributaries arising from these different landscapes likely contributed substantially to the variations of Yenisei bacterial communities. In contrast to a prediction of the river continuum concept, the proportion of photoautotrophic Cyanobacteria in bacterial assemblages did not increase downstream, but peaked at the middle section.
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Affiliation(s)
- Olesya V Kolmakova
- Siberian Federal University, Krasnoyarsk, Russia; Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russia
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Narancic T, Kenny S, Djokic L, Vasiljevic B, O'Connor K, Nikodinovic-Runic J. Medium-chain-length polyhydroxyalkanoate production by newly isolated Pseudomonas sp. TN301 from a wide range of polyaromatic and monoaromatic hydrocarbons. J Appl Microbiol 2012; 113:508-20. [DOI: 10.1111/j.1365-2672.2012.05353.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 05/13/2012] [Accepted: 05/24/2012] [Indexed: 11/29/2022]
Affiliation(s)
- T. Narancic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade; Serbia
| | - S.T. Kenny
- School of Biomolecular and Biomedical Sciences; Centre for Synthesis and Chemical Biology; University College Dublin; Dublin; Ireland
| | - L. Djokic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade; Serbia
| | - B. Vasiljevic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade; Serbia
| | - K.E. O'Connor
- School of Biomolecular and Biomedical Sciences; Centre for Synthesis and Chemical Biology; University College Dublin; Dublin; Ireland
| | - J. Nikodinovic-Runic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade; Serbia
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Merlin G, Cottin N. Lab-Scale Performance Evaluation of Vertical Flow Reed Beds for the Treatment of Chlorobenzene Contaminated Groundwater. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/jep.2012.328099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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