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Yemele OM, Zhao Z, Nkoh JN, Ymele E, Usman M. A systematic review of polycyclic aromatic hydrocarbon pollution: A combined bibliometric and mechanistic analysis of research trend toward an environmentally friendly solution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171577. [PMID: 38521268 DOI: 10.1016/j.scitotenv.2024.171577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 03/25/2024]
Abstract
Pollution caused by polycyclic aromatic hydrocarbons (PAHs) is a significant concern. This concern has become more problematic given the rapid modification of PAHs in the environment during co-contamination to form substituted PAHs. This review aims to integrate bibliometric analysis with a rigorous study of mechanistic insights, resulting in a more comprehensive knowledge of evolving research trends on PAH remediation. The results show that research in this field has progressed over the years and peaked in 2022, potentially due to the redirection of resources toward emerging pollutants, hinting at the dynamic nature of environmental research priorities. During this year, 158,147 documents were published, representing 7 % of the total publications in the field between 2000 and 2023. The different remediation methods used for PAH remediation were identified and compared. Bioremediation, having >90 % removal efficiency, has been revealed to be the best technique because it is cost-effective and easy to operate at large scale in situ and ex-situ. The current challenges in PAH remediation have been detailed and discussed. Implementing innovative and sustainable technologies that target pollutant removal and valuable compound recovery is necessary to build a more robust future for water management.
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Affiliation(s)
- Olive Mekontchou Yemele
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Zhenhua Zhao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Jackson Nkoh Nkoh
- Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen 518060, PR China; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China; Department of Chemistry, University of Buea, PO Box 63, Buea, Cameroon
| | - Ervice Ymele
- Department of Chemistry, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Muhammad Usman
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
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Chauviat A, Meyer T, Favre-Bonté S. Versatility of Stenotrophomonas maltophilia: Ecological roles of RND efflux pumps. Heliyon 2023; 9:e14639. [PMID: 37089375 PMCID: PMC10113797 DOI: 10.1016/j.heliyon.2023.e14639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
S. maltophilia is a widely distributed bacterium found in natural, anthropized and clinical environments. The genome of this opportunistic pathogen of environmental origin includes a large number of genes encoding RND efflux pumps independently of the clinical or environmental origin of the strains. These pumps have been historically associated with the uptake of antibiotics and clinically relevant molecules because they confer resistance to many antibiotics. However, considering the environmental origin of S. maltophilia, the ecological role of these pumps needs to be clarified. RND efflux systems are highly conserved within bacteria and encountered both in pathogenic and non-pathogenic species. Moreover, their evolutionary origin, conservation and multiple copies in bacterial genomes suggest a primordial role in cellular functions and environmental adaptation. This review is aimed at elucidating the ecological role of S. maltophilia RND efflux pumps in the environmental context and providing an exhaustive description of the environmental niches of S. maltophilia. By looking at the substrates and functions of the pumps, we propose different involvements and roles according to the adaptation of the bacterium to various niches. We highlight that i°) regulatory mechanisms and inducer molecules help to understand the conditions leading to their expression, and ii°) association and functional redundancy of RND pumps and other efflux systems demonstrate their complex role within S. maltophilia cells. These observations emphasize that RND efflux pumps play a role in the versatility of S. maltophilia.
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Liu X, Liu Y, Li S, Zhang A, Liu Z, Li Z. Metabolic fates and response strategies of microorganisms to aromatic compounds with different structures. BIORESOURCE TECHNOLOGY 2022; 366:128210. [PMID: 36323372 DOI: 10.1016/j.biortech.2022.128210] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
In this study, the metabolic fates and response strategies of microorganisms to aromatic compounds with different structures (phenol, naphthalene, phenanthrene, and pyrene) were comparatively studied. The results indicated that the phenol (90.9%), naphthalene (68.4%), phenanthrene (69.5%), and pyrene (67.1%) could be mineralized, and the biotoxicity also has been drastically reduced. The degradation characteristics and toxic effects were closely related to their chemical structure. The microorganisms showed different response strategies to aromatic compounds with different structures. Phenol had a simple structure and low toxicity, the microbial community structure was simple, and the rapid expression of key enzymes enabled it to be rapidly degraded. For the hydrophobic and complex naphthalene, phenanthrene, and pyrene, the more complex the structure, the higher the microbial diversity, the EPS showed different response for the purpose of improving their bioavailability, and the activity of key enzymes was positively correlated with their structural complexity.
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Affiliation(s)
- Xingshe Liu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No.13, Xi'an 710055, China
| | - Yongjun Liu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No.13, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Shuang Li
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No.13, Xi'an 710055, China
| | - Aining Zhang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No.13, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhe Liu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No.13, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhihua Li
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No.13, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
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Zhang L, Qiu X, Huang L, Xu J, Wang W, Li Z, Xu P, Tang H. Microbial degradation of multiple PAHs by a microbial consortium and its application on contaminated wastewater. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126524. [PMID: 34323721 DOI: 10.1016/j.jhazmat.2021.126524] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 06/20/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widely distributed in the environment and pose a serious threat to human health. Due to their unfavorable biological effects and persistent properties, it is extremely urgent to effectively degrade PAHs that are present in the environment, especially in wastewater. In this study, we obtained an efficient bacterial consortium (PDMC), consisting of the genera Sphingobium (58.57-72.40%) and Pseudomonas (25.93-39.75%), which is able to efficiently utilize phenanthrene or dibenzothiophene as the sole carbon source. The phenanthrene-cultivated consortium could also degrade naphthalene, acenaphthene, fluorene, anthracene, fluoranthene, benzo[a]anthracene, dibenzofuran, carbazole and indole, respectively. Furthermore, we identified the multiple key intermediates of aforementioned 11 substrates and discussed proposed pathways involved. Notably, a novel intermediate 1,2-dihydroxy-4a,9a-dihydroanthracene-9,10-dione of anthracene degradation was detected, which is extremely rare compared to previous reports. The PDMC consortium removed 100% of PAHs within 5 days in the small-scale wastewater bioremediation added with PAHs mixture, with a sludge settling velocity of 5% after 10 days of incubation. Experiments on the stability reveal the PDMC consortium always has excellent degrading ability for totaling 24 days. Combined with the microbial diversity analysis, the results suggest the PDMC consortium is a promising candidate to facilitate the bioremediation of PAHs-contaminated environments.
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Affiliation(s)
- Lige Zhang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Xiaoyu Qiu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Ling Huang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Jijun Xu
- Befar Group Co., LTD., Shandong, Binzhou 256619, People's Republic of China
| | - Weiwei Wang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Zhao Li
- Befar Group Co., LTD., Shandong, Binzhou 256619, People's Republic of China
| | - Ping Xu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Hongzhi Tang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
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Ma M, Gao W, Li Q, Han B, Zhu A, Yang H, Zheng L. Biodiversity and oil degradation capacity of oil-degrading bacteria isolated from deep-sea hydrothermal sediments of the South Mid-Atlantic Ridge. MARINE POLLUTION BULLETIN 2021; 171:112770. [PMID: 34492563 DOI: 10.1016/j.marpolbul.2021.112770] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Studies have reported that various hydrocarbons and hydrocarbon-degrading bacteria are found in global deep-sea hydrothermal regions. However, little is known about degradation characteristics of culturable hydrocarbon-degrading bacteria from these regions. We speculate that these bacteria can be used as resources for the bioremediation of oil pollution. In this study, six oil-degrading consortia were obtained from the hydrothermal region of the Southern Mid-Atlantic Ridge through room-temperature enrichment experiments. The dominant oil-degrading bacteria belonged to Nitratireductor, Pseudonocardia, Brevundimonas and Acinetobacter. More varieties of hydrocarbon-degrading bacteria were obtained from sediments (preserved at 4 °C) near hydrothermal vents. Most strains had the ability to degrade high molecular weight petroleum components. In addition, Pseudonocardia was shown to exhibit a high degradation ability for phytane and pristine for the first time. This study may provide new insights into the community structure and biodiversity of culturable oil-degrading bacteria in deep-sea hydrothermal regions.
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Affiliation(s)
- Meng Ma
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Wei Gao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China.
| | - Qian Li
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Bin Han
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Aimei Zhu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Huanghao Yang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Li Zheng
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China.
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Lara-Moreno A, Morillo E, Merchán F, Villaverde J. A comprehensive feasibility study of effectiveness and environmental impact of PAH bioremediation using an indigenous microbial degrader consortium and a novel strain Stenotrophomonas maltophilia CPHE1 isolated from an industrial polluted soil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 289:112512. [PMID: 33848881 DOI: 10.1016/j.jenvman.2021.112512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/04/2021] [Accepted: 03/27/2021] [Indexed: 06/12/2023]
Abstract
Polycyclic Aromatic Hydrocarbons (PAHs) are major toxic and recalcitrant pollutants in the environment. This study assessed the capacity of an isolated soil microbial consortium (OMC) to biodegrade PAHs. OMC was able to reach 100% biodegradation of naphthalene, acenaphthylene, acenaphthene, fluorene and phenanthrene in solution, and up to 76% and 50% of anthracene and fluoranthene, respectively, from a mix of 16 PAHs. To measure phenanthrene (PHE) mineralization, OMC and eight strains isolated from OMC were used and identified by PCR amplification of the gene 16S ribosomal RNA. A novel Stenotrophomonas maltophilia CPHE1, not previously described as a PAH degrader, was able to mineralize almost 40% PHE and biodegrade 90.5% in solution, in comparison to OMC that reached 100% PHE degradation, but only 18.8% mineralization. Based on metabolites identified during PHE degradation and on the detection of two genes (PAH RHDα and nahAc) in OMC consortium, two possible via were described for its degradation, through salicylic and phthalic acid. PAH RHDα, which codified the first step on PHE biodegradation pathway, was also found in the DNA of S. maltophilia CPHE1. An ecotoxicology study showed that PHE bioremediation after inoculating S. maltophilia CPHE1 for 30 days decreased by half the solution toxicity.
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Affiliation(s)
- Alba Lara-Moreno
- Institute of Natural Resources and Agrobiology of Seville, Department of Agrochemistry, Environmental Microbiology and Soil Conservation, Science Research Council (IRNAS-CSIC), Seville, Spain; Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Seville, Seville, Spain.
| | - Esmeralda Morillo
- Institute of Natural Resources and Agrobiology of Seville, Department of Agrochemistry, Environmental Microbiology and Soil Conservation, Science Research Council (IRNAS-CSIC), Seville, Spain
| | - Francisco Merchán
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Seville, Seville, Spain
| | - Jaime Villaverde
- Institute of Natural Resources and Agrobiology of Seville, Department of Agrochemistry, Environmental Microbiology and Soil Conservation, Science Research Council (IRNAS-CSIC), Seville, Spain
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Skariyachan S, Taskeen N, Kishore AP, Krishna BV, Naidu G. Novel consortia of enterobacter and pseudomonas formulated from cow dung exhibited enhanced biodegradation of polyethylene and polypropylene. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 284:112030. [PMID: 33529882 DOI: 10.1016/j.jenvman.2021.112030] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 01/02/2021] [Accepted: 01/16/2021] [Indexed: 05/25/2023]
Abstract
This study prioritizes the biodegradation potential of novel bacterial consortia formulated from cow dung samples towards low-density polyethylene (LDPE) and polypropylene (PP) in comparison with our previous studies. Ten possible consortia were formulated using 10 selected isolates with >10% weight reduction of LDPE and PP, these were pre-treated under UV for 1 h, and their biodegradation potential was studied for 160 days. The isolates present in prioritized consortia were characterized by standard microbiology and 16SrRNA gene sequencing methods. Out of 10 bacterial consortia formulated, potential consortium-CB3 showed greater percentage degradation (weight reduction) of 64.25 ± 2% and 63.00 ± 2% towards LDPE and PP films, respectively (p < 0.05) at 37 °C compared to other consortia. Significant structural variations due to the formation of bacterial biofilm were observed in CB3 treated LDPE and PP films. The three bacteria-IS1, IS2, and IS3-that constituted CB3 were found to be novel strains and designated to be Enterobacter sp nov. bt DSCE01, Enterobacter cloacae nov. bt DSCE02, and Pseudomonas aeruginosa nov. bt DSCE-CD03, respectively. This novel consortium can be scaled up for enhanced degradation of plastic polymers and probably design cost-effective bio-digester for industrial applications using CB3 as potential inoculum.
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Affiliation(s)
- Sinosh Skariyachan
- Department of Microbiology, St. Pius X College Rajapuram, Kasaragod, Kerala, India.
| | - Neha Taskeen
- Department of Biotechnology, Dayananda Sagar College of Engineering, Bangalore, Karnataka, India
| | - Alice Preethi Kishore
- Department of Biotechnology, Dayananda Sagar College of Engineering, Bangalore, Karnataka, India
| | - Bhavya Venkata Krishna
- Department of Biotechnology, Dayananda Sagar College of Engineering, Bangalore, Karnataka, India
| | - Gautami Naidu
- Department of Biotechnology, Dayananda Sagar College of Engineering, Bangalore, Karnataka, India
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The Problem of Removing Seaweed from the Beaches: Review of Methods and Machines. WATER 2021. [DOI: 10.3390/w13050736] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Beach cleaning and algae collection in the shoreline area are important for the tourism industry, mainly for aesthetic reasons, but also to protect human health. In addition, the collected material can be used in many industries such as energy, medicine, cosmetics or catering. The problem of cleaning the shoreline area concerns the need to clear land, water and the strip of shore and land onto which water is thrown from falling waves. The vast majority of available cleaning methods are adapted to cleaning beaches or waters. There is a lack of solutions and machine designs suitable for cleaning the coastal strip, which includes: land, the area of land on which the wave is thrown, shoal and deep water. This area is particularly important for tourism as it is mainly used for water bathing. Pictures from tourist areas that are exposed to intensive water contamination show that measures taken to clear the shoreline area are not very effective, as seaweed in shallow water is thrown ashore with the waves. The paper presents a review of methods for cleaning coastal waters and beaches from contamination. It also shows the author’s conceptual design adapted to clear the shoreline area and sandy beaches.
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Tirkey SR, Ram S, Mishra S. Naphthalene degradation studies using Pseudomonas sp. strain SA3 from Alang-Sosiya ship breaking yard, Gujarat. Heliyon 2021; 7:e06334. [PMID: 33869819 PMCID: PMC8035486 DOI: 10.1016/j.heliyon.2021.e06334] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/29/2021] [Accepted: 02/17/2021] [Indexed: 11/16/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) remediation has received considerable attention due to their significant health concern and environmental pollution. However, PAHs contaminated sites also contain indigenous microbes that can potentially degrade naphthalene. Therefore, this study aimed to isolate, characterise and optimise process parameters for efficient naphthalene degradation. A total of 50 naphthalene degrading bacteria were isolated from Alang-Sosiya ship breaking yard, Bhavnagar, Gujarat and screened for their naphthalene degrading capacity. The selected isolate, Pseudomonas sp. strain SA3 was found to degrade 98.74 ± 0.00% naphthalene at a concentration of 500 ppm after 96 h. Further, optimisation of environmental parameters using one factor at a time approach using different inoculum sizes (v/v), pH, salinity, temperature, carbon and nitrogen source greatly accelerated the degradation process attaining 98.6 ± 0.46% naphthalene degradation after 72 h. The optimised parameters for maximum naphthalene degradation were pH 8, 0.1% peptone as nitrogen source, 8% salinity and 1% (v/v) inoculum size.
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Affiliation(s)
- Sushma Rani Tirkey
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Applied Phycology & Biotechnology Division, CSIR- Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
| | - Shristi Ram
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Applied Phycology & Biotechnology Division, CSIR- Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
| | - Sandhya Mishra
- Applied Phycology & Biotechnology Division, CSIR- Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
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Ma M, Zheng L, Yin X, Gao W, Han B, Li Q, Zhu A, Chen H, Yang H. Reconstruction and evaluation of oil-degrading consortia isolated from sediments of hydrothermal vents in the South Mid-Atlantic Ridge. Sci Rep 2021; 11:1456. [PMID: 33446871 PMCID: PMC7809451 DOI: 10.1038/s41598-021-80991-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 12/23/2020] [Indexed: 11/11/2022] Open
Abstract
In this study, sediments were collected from two different sites in the deep-sea hydrothermal region of the South Atlantic Ocean. Two microbial enrichment cultures (H7S and H11S), which were enriched from the sediments collected at two sample sites, could effectively degrade petroleum hydrocarbons. The bacterial diversity was analyzed by high-throughput sequencing method. The petroleum degradation ability were evaluated by gas chromatography–mass spectrometry and gravimetric analysis. We found that the dominant oil-degrading bacteria of enrichment cultures from the deep-sea hydrothermal area belonged to the genera Pseudomonas, Nitratireductor, Acinetobacter, and Brevundimonas. After a 14-day degradation experiment, the enrichment culture H11S, which was obtained near a hydrothermal vent, exhibited a higher degradation efficiency for alkanes (95%) and polycyclic aromatic hydrocarbons (88%) than the enrichment culture H7S. Interestingly, pristane and phytane as biomarkers were degraded up to 90% and 91% respectively by the enrichment culture H11S, and six culturable oil-degrading bacterial strains were isolated. Acinetobacter junii strain H11S-25, Nitratireductor sp. strain H11S-31 and Pseudomonas sp. strain H11S-28 were used at a density ratio of 95:4:1 to construct high-efficiency oil-degrading consortium H. After a three-day biodegradation experiment, consortium H showed high degradation efficiencies of 74.2% and 65.7% for total alkanes and PAHs, respectively. The degradation efficiency of biomarkers such as pristane and high-molecular-weight polycyclic aromatic hydrocarbons (such as CHR) reached 84.5% and 80.48%, respectively. The findings of this study indicate that the microorganisms in the deep-sea hydrothermal area are potential resources for degrading petroleum hydrocarbons. Consortium H, which was artificially constructed, showed a highly efficient oil-degrading capacity and has significant application prospects in oil pollution bioremediation.
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Affiliation(s)
- Meng Ma
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China.,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Li Zheng
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China. .,Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China.
| | - Xiaofei Yin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Wei Gao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Bin Han
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Qian Li
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Aimei Zhu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Hao Chen
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Huanghao Yang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
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Vaidya SS, Patel AB, Jain K, Amin S, Madamwar D. Characterizing the bacterial consortium ASDF capable of catabolic degradation of fluoranthene and other mono- and poly-aromatic hydrocarbons. 3 Biotech 2020; 10:491. [PMID: 33134009 DOI: 10.1007/s13205-020-02478-w] [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: 06/02/2020] [Accepted: 10/12/2020] [Indexed: 10/23/2022] Open
Abstract
In this study, a bacterial consortium ASDF was developed, capable of degrading fluoranthene (a non-alternant poly-aromatic hydrocarbon). It comprised of three bacterial strains: Pseudomonas sp. ASDF1, Burkholderia sp. ASDF2 and Mycobacterium sp. ASDF3 capable of degrading 100 mg/L of fluoranthene under experimentally defined and optimum conditions (37 °C, pH 7.0, 150 rpm) within 7 days. Consortium had metabolized fluoranthene as sole source of carbon and energy with maximum degradation rate of 0.52 mg/L/h and growth rate of 0.054/h. Fluoranthene degradation is an aerobic process, therefore with increasing the gyratory shaking from 50 to 150 rpm, degradation was concurrently enhanced by 7.1-fold. The synthetic surfactants SDS and CTAB had antagonistic effect on fluoranthene degradation (decreased up to 2.8-fold). The proficiency of consortium was assessed for its inherent ability to degrade seven other hydrocarbons both individually as well as in mixture. The degradation profile was studied using HPLC and the detection of two degraded intermediates (salicylic acid and derivatives of phthalic acid) suggested that fluoranthene degradation might have occurred via ortho- and meta-cleavage pathways. The competency of consortium was further validated through simulated microcosm studies, which showed 96% degradation of fluoranthene in soil ecosystem under the ambient conditions. Hence, the study suggested that the consortium ASDF has an inherent potential for its wide applicability in bioremediation of hydrocarbon-contaminated sites.
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Affiliation(s)
- Sagar S Vaidya
- Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand, Gujarat 388 315 India
| | - Avani Bharatkumar Patel
- Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand, Gujarat 388 315 India
| | - Kunal Jain
- Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand, Gujarat 388 315 India
| | - Seema Amin
- P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Charusat Campus, Changa, Anand, Gujarat 388 421 India
| | - Datta Madamwar
- Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand, Gujarat 388 315 India.,P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Charusat Campus, Changa, Anand, Gujarat 388 421 India
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12
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Raimondo EE, Saez JM, Aparicio JD, Fuentes MS, Benimeli CS. Coupling of bioaugmentation and biostimulation to improve lindane removal from different soil types. CHEMOSPHERE 2020; 238:124512. [PMID: 31430718 DOI: 10.1016/j.chemosphere.2019.124512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/01/2019] [Accepted: 08/03/2019] [Indexed: 06/10/2023]
Abstract
Lindane is an organochlorine pesticide that, due to its persistence in the environment, is still detected in different matrices. Bioremediation using actinobacteria consortia proved to be promising for the restoration of contaminated soils. Another alternative to remove xenobiotics is to use agricultural residues, which stimulates microbial activity, increasing its capacity to degrade organic pollutants. The present work studies the coupling of sugarcane bagasse biostimulation and bioaugmentation with the actinobacteria consortium composed of Streptomyces sp. A2, A5, A11 and M7 on lindane removal in different soil types. In this sense, factorial designs with three factors (proportion and size of sugarcane bagasse particles, and moisture content) were employed. A response optimizer identified the combination of factors levels that jointly allowed obtaining the maximum lindane removal in the evaluated conditions. In the optimal conditions, the effect of the bioremediation process on soil microbiota was studied by evaluating different parameters. The highest lindane removal percentages were detected in biostimulated microcosms bioaugmented with the microbial consortium, which were accompanied by a decrease in lindane half-life respect to the controls. Also, the bioaugmentation of biostimulated microcosms increased the microbial counts and enhanced soil enzymatic activities, corroborating the bioremediation process efficiency. The survival of the four actinobacteria at the end of the assay confirmed the ability of all Streptomyces strains to colonize amended soils. Bioremediation by simultaneous application of biostimulation with sugarcane bagasse and bioaugmentation with the actinobacteria consortium, in the optimized conditions, represents an efficient strategy to restore lindane contaminated soils.
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Affiliation(s)
- Enzo E Raimondo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - Juliana M Saez
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - Juan D Aparicio
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, 4000, Tucumán, Argentina
| | - María S Fuentes
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - Claudia S Benimeli
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Catamarca, Belgrano 300, 4700, Catamarca, Argentina.
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13
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Petsas AS, Vagi MC. Trends in the Bioremediation of Pharmaceuticals and Other Organic Contaminants Using Native or Genetically Modified Microbial Strains: A Review. Curr Pharm Biotechnol 2019; 20:787-824. [DOI: 10.2174/1389201020666190527113903] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 01/15/2019] [Accepted: 03/19/2019] [Indexed: 01/28/2023]
Abstract
Nowadays, numerous synthetic and semisynthetic chemicals are extensively produced and consequently used worldwide for many different purposes, such as pharmaceuticals, pesticides, hydrocarbons with aromatic rings (known as polycyclic aromatic hydrocarbons, PAHs), multi-substituted biphenyls with halogens (such as polychlorinated biphenyls, PCBs), and many other toxic and persistent chemical species. The presence of the aforementioned xenobiotic substances not only in various environmental matrices (water, air, and soil), but also in biological tissues (organisms) as well as in several compartments of raw or processed food (of fruit, vegetal, and animal origin), has raised global scientific concerns regarding their potential toxicity towards non target organisms including humans. Additionally, the ability of those persistent organic pollutants to be magnified via food consumption (food chain) has become a crucial threat to human health. Microbial degradation is considered an important route influencing the fate of those toxicants in each matrix. The technique of bioremediation, either with microorganisms (native or genetically modified) which are applied directly (in a reactor or in situ), or with cell extracts or purified enzymes preparations, is reported as a low cost and potential detoxification technology for the removal of toxic chemicals. The sources and toxic impacts of target groups of chemicals are briefly presented in the present study, whereas the bioremediation applications for the removal of pharmaceuticals and other organic contaminants using microbial strains are critically reviewed. All the recently published data concerning the genes encoding the relevant enzymes that catalyze the degradation reactions, the mechanisms of reactions and parameters that influence the bioremediation process are discussed. Finally, research needs and future trends in the direction of decontamination are high-lightened.
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Affiliation(s)
- Andreas S. Petsas
- Laboratory of Environmental Quality and Geospatial Applications, Department of Marine Sciences, School of Environment, University of the Aegean, Lesvos, Greece
| | - Maria C. Vagi
- Laboratory of Environmental Quality and Geospatial Applications, Department of Marine Sciences, School of Environment, University of the Aegean, Lesvos, Greece
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14
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Patel AB, Singh S, Patel A, Jain K, Amin S, Madamwar D. Synergistic biodegradation of phenanthrene and fluoranthene by mixed bacterial cultures. BIORESOURCE TECHNOLOGY 2019; 284:115-120. [PMID: 30927648 DOI: 10.1016/j.biortech.2019.03.097] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/16/2019] [Accepted: 03/19/2019] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are highly recalcitrant compounds and difficult to degrade. Therefore in this work, using a bioremediation approach, mixed bacterial cultures (ASPF) was developed and enriched from polluted marine sediments capable of degrading 400 mg/L of phenanthrene and fluoranthene in Bushnell Hass medium. ASPF consists of 22 bacterial genera dominated by Azoarcus and Chelativorans. The biostimulation effect of three water soluble fertilizers (NPK, urea, and ammonium sulfate) showed that NPK and ammonium sulfate have enhanced the degradation, whereas urea has decreased their degradation. ASPF was also able to degrade phenanthrene and fluoranthene in the presence of petroleum hydrocarbons. But degradation was found to decrease in the presence of pathway intermediates (phthalic acid and catechol) due to enzymatic feedback inhibition. Optimum degradation of both PAHs was observed under room temperature, suggesting the practical applicability of ASPF.
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Affiliation(s)
- Avani Bharatkumar Patel
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India
| | - Shilpi Singh
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India
| | - Aaishwarya Patel
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Charusat Campus, Changa 388 421, Anand, Gujarat, India
| | - Kunal Jain
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India
| | - Seema Amin
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Charusat Campus, Changa 388 421, Anand, Gujarat, India
| | - Datta Madamwar
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India.
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15
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Ogawa N, Kato H, Kishida K, Ichihashi E, Ishige T, Yoshikawa H, Nagata Y, Ohtsubo Y, Tsuda M. Suppression of substrate inhibition in phenanthrene-degrading Mycobacterium by co-cultivation with a non-degrading Burkholderia strain. MICROBIOLOGY-SGM 2019; 165:625-637. [PMID: 30994434 DOI: 10.1099/mic.0.000801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In natural environments contaminated by recalcitrant organic pollutants, efficient biodegradation of such pollutants has been suggested to occur through the cooperation of different bacterial species. A phenanthrene-degrading bacterial consortium, MixEPa4, from polluted soil was previously shown to include a phenanthrene-degrading strain, Mycobacterium sp. EPa45, and a non-polycyclic aromatic hydrocarbon (PAH)-degrading strain, Burkholderia sp. Bcrs1W. In this study, we show that addition of phenanthrene to rich liquid medium resulted in the transient growth arrest of EPa45 during its degradation of phenanthrene. RNA-sequencing analysis of the growth-arrested cells showed the phenanthrene-dependent induction of genes that were predicted to be involved in the catabolism of this compound, and many other cell systems, such as a ferric iron-uptake, were up-regulated, implying iron deficiency of the cells. This negative effect of phenanthrene became much more apparent when using phenanthrene-containing minimal agar medium; colony formation of EPa45 on such agar was significantly inhibited in the presence of phenanthrene and its intermediate degradation products. However, growth inhibition was suppressed by the co-residence of viable Bcrs1W cells. Various Gram-negative bacterial strains, including the three other strains from MixEPa4, also exhibited varying degrees of suppression of the growth inhibition effect on EPa45, strongly suggesting that this effect is not strain-specific. Growth inhibition of EPa45 was also observed by other PAHs, biphenyl and naphthalene, and these two compounds and phenanthrene also inhibited the growth of another mycobacterial strain, M. vanbaalenii PYR-1, that can use them as carbon sources. These phenomena of growth inhibition were also suppressed by Bcrs1W. Our findings suggest that, in natural environments, various non-PAH-degrading bacterial strains play potentially important roles in the facilitation of PAH degradation by the co-residing mycobacteria.
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Affiliation(s)
- Natsumi Ogawa
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Hiromi Kato
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Kouhei Kishida
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Eikichi Ichihashi
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Taichiro Ishige
- 2 Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Tokyo 156-8502, Japan
| | - Hirofumi Yoshikawa
- 2 Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Tokyo 156-8502, Japan
| | - Yuji Nagata
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Yoshiyuki Ohtsubo
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Masataka Tsuda
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
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Muangchinda C, Rungsihiranrut A, Prombutara P, Soonglerdsongpha S, Pinyakong O. 16S metagenomic analysis reveals adaptability of a mixed-PAH-degrading consortium isolated from crude oil-contaminated seawater to changing environmental conditions. JOURNAL OF HAZARDOUS MATERIALS 2018; 357:119-127. [PMID: 29870896 DOI: 10.1016/j.jhazmat.2018.05.062] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 05/10/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
A bacterial consortium, named SWO, was enriched from crude oil-contaminated seawater from Phrao Bay in Rayong Province, Thailand, after a large oil spill in 2013. The bacterial consortium degraded a polycyclic aromatic hydrocarbon (PAH) mixture consisting of phenanthrene, anthracene, fluoranthene, and pyrene (50 mg L-1 each) by approximately 73%, 69%, 52%, and 48%, respectively, within 21 days. This consortium exhibited excellent adaptation to a wide range of environmental conditions. It could degrade a mixture of four PAHs under a range of pH values (4.0-9.0), temperatures (25 °C-37 °C), and salinities (0-10 g L-1 with NaCl). In addition, this consortium degraded 20-30% of benzo[a]pyrene and perylene (10 mg L-1 each), high molecular weight PAHs, in the presence of other PAHs within 35 days, and degraded 40% of 2% (v/v) crude oil within 20 days. The 16S rRNA gene amplicon sequencing analysis demonstrated that Pseudomonas and Methylophaga were the dominant genera of consortium SWO in almost all treatments, while Pseudidiomarina, Thalassospira and Alcanivorax were predominant under higher salt concentrations. Moreover, Pseudomonas and Alcanivorax were dominant in the crude oil-degradation treatment. Our results suggest that the consortium SWO maintained its biodegradation ability by altering the bacterial community profile upon encountering changes in the environmental conditions.
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Affiliation(s)
- Chanokporn Muangchinda
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Thailand
| | - Adisan Rungsihiranrut
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Thailand
| | - Pinidphon Prombutara
- Omics Sciences and Bioinformatics Center, Faculty of Science, Chulalongkorn University, Thailand
| | - Suwat Soonglerdsongpha
- Environmental Technology Research Department, PTT Research and Technology Institute, PTT Public Company Limited, Ayutthaya, Thailand
| | - Onruthai Pinyakong
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Thailand; Omics Sciences and Bioinformatics Center, Faculty of Science, Chulalongkorn University, Thailand; Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn University, Thailand.
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17
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Patel AB, Mahala K, Jain K, Madamwar D. Development of mixed bacterial cultures DAK11 capable for degrading mixture of polycyclic aromatic hydrocarbons (PAHs). BIORESOURCE TECHNOLOGY 2018; 253:288-296. [PMID: 29353758 DOI: 10.1016/j.biortech.2018.01.049] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/06/2018] [Accepted: 01/09/2018] [Indexed: 05/23/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous and persistent pollutants having mutagenic and carcinogenic properties. Microbial metabolism is an alternative approach for removal of PAHs from polluted environment. Mixed bacterial cultures DAK11 capable for degrading mixture of PAHs was developed from long term polluted marine sediments. DAK11 was able to degrade 500 mg/L of mixture of four PAHs and their degradation efficiency was enhanced by supplementing commercially available NPK fertilizer (0.1%, w/v). Anionic surfactant SDS has enhanced the degradation of PAHs, but DAK11 growth was inhibited in presence of cationic surfactant CTAB. Heavy metals have decreased the rate of degradation, while it was completely inhibited in the presence of Zn2+ and CrO42- (1mM). DAK11 was able to degrade PAHs in the presence of mono-aromatic hydrocarbons, lubricant oil and diesel. Lower molecular weight aromatic and aliphatic compounds were identified using GC-MS during metabolism of mixture of PHAs.
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Affiliation(s)
- Avani Bharatkumar Patel
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, 388315 Anand, Gujarat, India
| | - Krutika Mahala
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, 388315 Anand, Gujarat, India
| | - Kunal Jain
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, 388315 Anand, Gujarat, India
| | - Datta Madamwar
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, 388315 Anand, Gujarat, India.
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18
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Pan LJ, Li J, Li CX, Tang XD, Yu GW, Wang Y. Study of ciprofloxacin biodegradation by a Thermus sp. isolated from pharmaceutical sludge. JOURNAL OF HAZARDOUS MATERIALS 2018; 343:59-67. [PMID: 28941838 DOI: 10.1016/j.jhazmat.2017.09.009] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/04/2017] [Accepted: 09/06/2017] [Indexed: 06/07/2023]
Abstract
Ciprofloxacin (CIP) is an antibiotic drug frequently detected in manure compost and is difficult to decompose at high temperatures, resulting in a potential threat to the environment. Microbial degradation is an effective and environmentally friendly method to degrade CIP. In this study, a thermophilic bacterium that can degrade CIP was isolated from sludge sampled from an antibiotics pharmaceutical factory. This strain is closely related to Thermus thermophilus based on 16S rRNA gene sequence analysis and is designated C419. The optimal temperature and pH values for CIP degradation are 70°C and 6.5, respectively, and an appropriate sodium acetate concentration promotes CIP degradation. Seven major biodegradation metabolites were identified by an ultra-performance liquid chromatography tandem mass spectrometry analysis. In addition, strain C419 degraded other fluoroquinolones, including ofloxacin, norfloxacin and enrofloxacin. The supernatant from the C419 culture grown in fluoroquinolone-containing media showed attenuated antibacterial activity. These results indicate that strain C419 might be a new auxiliary bacterial resource for the biodegradation of fluoroquinolone residue in thermal environments.
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Affiliation(s)
- Lan-Jia Pan
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Li
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chun-Xing Li
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Xiao-da Tang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guang-Wei Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yin Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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Metabolism of pyrene through phthalic acid pathway by enriched bacterial consortium composed of Pseudomonas, Burkholderia, and Rhodococcus (PBR). 3 Biotech 2017; 7:29. [PMID: 28401465 PMCID: PMC5388654 DOI: 10.1007/s13205-017-0598-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 01/02/2017] [Indexed: 11/19/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are highly recalcitrant compounds due to their high hydrophobicity and tendency to partition in organic phase of soils. Pyrene is a high-molecular weight PAH, which has human health concerns. In the present study, a bacterial consortium, PBR, was developed from a long-term polluted site, viz., Amlakhadi, Ankleshwar, Gujarat, for effective degradation of pyrene. The consortium effectively metabolized pyrene as a sole source of carbon and energy. The consortium comprised three bacterial species, Pseudomonas sp. ASDP1, Burkholderia sp. ASDP2, and Rhodococcus sp. ASDP3. The maximum growth rate of consortium was 0.060/h and the maximum pyrene degradation rate was 16 mg/l/day. The organic and inorganic nutrients along with different surfactants did not affect pyrene degradation, but degradation rate moderately increased in the presence of sodium succinate. The significant characteristic of the consortium was that it possessed an ability to degrade six other hydrocarbons, both independently and simultaneously at 37 °C, in BHM (pH 7.0) under shaking conditions (150 rpm) and it showed resistance towards mercury at 10 mM concentration. Phthalic acid as one of the intermediates during pyrene degradation was detected through high-performance liquid chromatography (HPLC). The efficiency of consortium for pyrene degradation was validated in simulated microcosms’ study, which indicated that 99% of pyrene was metabolized by the consortium under ambient conditions.
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20
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Govarthanan M, Fuzisawa S, Hosogai T, Chang YC. Biodegradation of aliphatic and aromatic hydrocarbons using the filamentous fungus Penicillium sp. CHY-2 and characterization of its manganese peroxidase activity. RSC Adv 2017. [DOI: 10.1039/c6ra28687a] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel fungal strain, Penicillium sp. CHY-2, isolated from Antarctic soils, was effective for the degradation of decane at lower (20 °C) and medium (30 °C) temperatures.
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Affiliation(s)
- Muthusamy Govarthanan
- Department of Applied Sciences
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
- Japan
| | - Soichiro Fuzisawa
- Course of Chemical and Biological Engineering
- Division of Sustainable and Environmental Engineering
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
| | - Toshiki Hosogai
- Department of Applied Sciences
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
- Japan
| | - Young-Cheol Chang
- Department of Applied Sciences
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
- Japan
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21
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Huang X, Shi J, Cui C, Yin H, Zhang R, Ma X, Zhang X. Biodegradation of phenanthrene byRhizobium petroleariumSL-1. J Appl Microbiol 2016; 121:1616-1626. [DOI: 10.1111/jam.13292] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 07/30/2016] [Accepted: 08/29/2016] [Indexed: 11/29/2022]
Affiliation(s)
- X. Huang
- Key Laboratory of Microbial Resources Collection and Preservation; Ministry of Agriculture; Institute of Agricultural Resources and Regional Planning; Chinese Academy of Agricultural Sciences; Beijing China
- College of Resources Environment and Tourism; Capital Normal University; Beijing China
| | - J. Shi
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process; School of Resources and Environmental Engineering; East China University of Science and Technology; Shanghai China
| | - C. Cui
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process; School of Resources and Environmental Engineering; East China University of Science and Technology; Shanghai China
| | - H. Yin
- School of Minerals Processing and Bioengineering; Central South University; Changsha China
| | - R. Zhang
- Key Laboratory of Microbial Resources Collection and Preservation; Ministry of Agriculture; Institute of Agricultural Resources and Regional Planning; Chinese Academy of Agricultural Sciences; Beijing China
- College of Resources Environment and Tourism; Capital Normal University; Beijing China
| | - X. Ma
- Key Laboratory of Microbial Resources Collection and Preservation; Ministry of Agriculture; Institute of Agricultural Resources and Regional Planning; Chinese Academy of Agricultural Sciences; Beijing China
| | - X. Zhang
- Key Laboratory of Microbial Resources Collection and Preservation; Ministry of Agriculture; Institute of Agricultural Resources and Regional Planning; Chinese Academy of Agricultural Sciences; Beijing China
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22
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Biodegradation of Mixed PAHs by PAH-Degrading Endophytic Bacteria. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13080805. [PMID: 27517944 PMCID: PMC4997491 DOI: 10.3390/ijerph13080805] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 07/26/2016] [Accepted: 08/03/2016] [Indexed: 11/16/2022]
Abstract
Endophytic bacteria can promote plant growth, induce plant defence mechanisms, and increase plant resistance to organic contaminants. The aims of the present study were to isolate highly PAH-degrading endophytic bacteria from plants growing at PAH-contaminated sites and to evaluate the capabilities of these bacteria to degrade polycyclic aromatic hydrocarbons (PAHs) in vitro, which will be beneficial for re-colonizing target plants and reducing plant PAH residues through the inoculation of plants with endophytic bacteria. Two endophytic bacterial strains P1 (Stenotrophomonas sp.) and P3 (Pseudomonas sp.), which degraded more than 90% of phenanthrene (PHE) within 7 days, were isolated from Conyza canadensis and Trifolium pretense L., respectively. Both strains could use naphthalene (NAP), PHE, fluorene (FLR), pyrene (PYR), and benzo(a)pyrene (B(a)P) as the sole sources of carbon and energy. Moreover, these bacteria reduced the contamination of mixed PAHs at high levels after inoculation for 7 days; strain P1 degraded 98.0% NAP, 83.1% FLR, 87.8% PHE, 14.4% PYR, and 1.6% B(a)P, and strain P3 degraded 95.3% NAP, 87.9% FLR, 90.4% PHE, 6.9% PYR, and negligible B(a)P. Notably, the biodegradation of PAHs could be promoted through additional carbon and nitrogen nutrients; therein, beef extract was suggested as the optimal co-substrate for the degradation of PAHs by these two strains (99.1% PHE was degraded within 7 days). Compared with strain P1, strain P3 has more potential for the use in the removal of PAHs from plant tissues. These results provide a novel perspective in the reduction of plant PAH residues in PAH-contaminated sites through inoculating plants with highly PAH-degrading endophytic bacteria.
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Obi CC, Adebusoye SA, Ugoji EO, Ilori MO, Amund OO, Hickey WJ. Microbial Communities in Sediments of Lagos Lagoon, Nigeria: Elucidation of Community Structure and Potential Impacts of Contamination by Municipal and Industrial Wastes. Front Microbiol 2016; 7:1213. [PMID: 27547200 PMCID: PMC4974257 DOI: 10.3389/fmicb.2016.01213] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 07/21/2016] [Indexed: 01/13/2023] Open
Abstract
Estuarine sediments are significant repositories of anthropogenic contaminants, and thus knowledge of the impacts of pollution upon microbial communities in these environments is important to understand potential effects on estuaries as a whole. The Lagos lagoon (Nigeria) is one of Africa’s largest estuarine ecosystems, and is impacted by hydrocarbon pollutants and other industrial and municipal wastes. The goal of this study was to elucidate microbial community structure in Lagos lagoon sediments to identify groups that may be adversely affected by pollution, and those that may serve as degraders of environmental contaminants, especially polycyclic aromatic hydrocarbons (PAHs). Sediment samples were collected from sites that ranged in types and levels of anthropogenic impacts. The sediments were characterized for a range of physicochemical properties, and microbial community structure was determined by Illumina sequencing of the 16S rRNA genes. Microbial diversity (species richness and evenness) in the Apapa and Eledu sediments was reduced compared to that of the Ofin site, and communities of both of the former two were dominated by a single operational taxonomic unit (OTU) assigned to the family Helicobacteraceae (Epsilonproteobacteria). In the Ofin community, Epsilonproteobacteria were minor constituents, while the major groups were Cyanobacteria, Bacteroidetes, and Firmicutes, which were all minor in the Apapa and Eledu sediments. Sediment oxygen demand (SOD), a broad indicator of contamination, was identified by multivariate analyses as strongly correlated with variation in alpha diversity. Environmental variables that explained beta diversity patterns included SOD, as well as levels of naphthalene, acenaphthylene, cobalt, cadmium, total organic matter, or nitrate. Of 582 OTU identified, abundance of 167 was significantly correlated (false discovery rate q≤ 0.05) to environmental variables. The largest group of OTU correlated with PAH levels were PAH/hydrocarbon-degrading genera of the Oceanospirillales order (Gammaproteobacteria), which were most abundant in the hydrocarbon-contaminated Apapa sediment. Similar Oceanospirillales taxa are responsive to marine oil spills and thus may present a unifying theme in marine microbiology as bacteria adapted for degradation of high hydrocarbon loads, and may represent a potential means for intrinsic remediation in the case of the Lagos lagoon sediments.
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Affiliation(s)
- Chioma C Obi
- Department of Microbiology, University of LagosLagos, Nigeria; O.N. Allen Laboratory for Soil Microbiology, Department of Soil Science, University of Wisconsin-Madison, MadisonWI, USA
| | | | - Esther O Ugoji
- Department of Microbiology, University of Lagos Lagos, Nigeria
| | - Mathew O Ilori
- Department of Microbiology, University of Lagos Lagos, Nigeria
| | | | - William J Hickey
- O.N. Allen Laboratory for Soil Microbiology, Department of Soil Science, University of Wisconsin-Madison, Madison WI, USA
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Patel V, Sharma A, Lal R, Al-Dhabi NA, Madamwar D. Response and resilience of soil microbial communities inhabiting in edible oil stress/contamination from industrial estates. BMC Microbiol 2016; 16:50. [PMID: 27001503 PMCID: PMC4802719 DOI: 10.1186/s12866-016-0669-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 03/09/2016] [Indexed: 01/27/2023] Open
Abstract
Background Gauging the microbial community structures and functions become imperative to understand the ecological processes. To understand the impact of long-term oil contamination on microbial community structure soil samples were taken from oil fields located in different industrial regions across Kadi, near Ahmedabad, India. Soil collected was hence used for metagenomic DNA extraction to study the capabilities of intrinsic microbial community in tolerating the oil perturbation. Results Taxonomic profiling was carried out by two different complementary approaches i.e. 16S rDNA and lowest common ancestor. The community profiling revealed the enrichment of phylum “Proteobacteria” and genus “Chromobacterium,” respectively for polluted soil sample. Our results indicated that soil microbial diversity (Shannon diversity index) decreased significantly with contamination. Further, assignment of obtained metagenome reads to Clusters of Orthologous Groups (COG) of protein and Kyoto Encyclopedia of Genes and Genomes (KEGG) hits revealed metabolic potential of indigenous microbial community. Enzymes were mapped on fatty acid biosynthesis pathway to elucidate their roles in possible catalytic reactions. Conclusion To the best of our knowledge this is first study for influence of edible oil on soil microbial communities via shotgun sequencing. The results indicated that long-term oil contamination significantly affects soil microbial community structure by acting as an environmental filter to decrease the regional differences distinguishing soil microbial communities. Electronic supplementary material The online version of this article (doi:10.1186/s12866-016-0669-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Vrutika Patel
- Post Graduate Department of Biosciences, Centre of Advanced Study in Bioresource Technology, Sardar Patel University, Satellite Campus, Vadtal Road, Bakrol, 388 315, Gujarat, India
| | | | - Rup Lal
- Department of Zoology, University of Delhi, Delhi, India
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, Addiriya Chair for Environmental Studies, College of Science, King Saud University, P.O. Box # 2455, Riyadh, 11451, Saudi Arabia
| | - Datta Madamwar
- Post Graduate Department of Biosciences, Centre of Advanced Study in Bioresource Technology, Sardar Patel University, Satellite Campus, Vadtal Road, Bakrol, 388 315, Gujarat, India.
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Patel V, Munot H, Shah V, Shouche YS, Madamwar D. Taxonomic profiling of bacterial community structure from coastal sediment of Alang-Sosiya shipbreaking yard near Bhavnagar, India. MARINE POLLUTION BULLETIN 2015; 101:736-745. [PMID: 26475023 DOI: 10.1016/j.marpolbul.2015.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 09/14/2015] [Accepted: 10/04/2015] [Indexed: 06/05/2023]
Abstract
The Alang-Sosiya shipbreaking yard (ASSBY) is considered the largest of its kind in the world, and a major source of anthropogenic pollutants. The aim of this study was to investigate the impact of shipbreaking activities on the bacterial community structure with a combination of culture-dependent and culture-independent approaches. In the culture-dependent approach, 200 bacterial cultures were isolated and analyzed by molecular fingerprinting and 16S ribosomal RNA (r-RNA) gene sequencing, as well as being studied for degradation of polycyclic aromatic hydrocarbons (PAHs). In the culture-independent approach, operational taxonomic units (OTUs) were related to eight major phyla, of which Betaproteobacteria (especially Acidovorax) was predominantly found in the polluted sediments of ASSBY and Gammaproteobacteria in the pristine sediment sample. The statistical approaches showed a significant difference in the bacterial community structure between the pristine and polluted sediments. To the best of our knowledge, this is the first study investigating the effect of shipbreaking activity on the bacterial community structure of the coastal sediment at ASSBY.
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Affiliation(s)
- Vilas Patel
- Environmental Genomics and Proteomics Lab, BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India.
| | - Hitendra Munot
- Molecular Biology Unit, National Center for Cell Science, Ganeshkhind, Pune 411 007, Maharashtra, India
| | - Varun Shah
- Environmental Genomics and Proteomics Lab, BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India
| | - Yogesh S Shouche
- Molecular Biology Unit, National Center for Cell Science, Ganeshkhind, Pune 411 007, Maharashtra, India
| | - Datta Madamwar
- Environmental Genomics and Proteomics Lab, BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India.
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Bacterial Diversity and Bioremediation Potential of the Highly Contaminated Marine Sediments at El-Max District (Egypt, Mediterranean Sea). BIOMED RESEARCH INTERNATIONAL 2015; 2015:981829. [PMID: 26273661 PMCID: PMC4530241 DOI: 10.1155/2015/981829] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 02/01/2015] [Accepted: 02/01/2015] [Indexed: 11/17/2022]
Abstract
Coastal environments worldwide are threatened by the effects of pollution, a risk particularly high in semienclosed basins like the Mediterranean Sea that is poorly studied from bioremediation potential perspective especially in the Southern coast. Here, we investigated the physical, chemical, and microbiological features of hydrocarbon and heavy metals contaminated sediments collected at El-Max bay (Egypt). Molecular and statistical approaches assessing the structure of the sediment-dwelling bacterial communities showed correlations between the composition of bacterial assemblages and the associated environmental parameters. Fifty strains were isolated on mineral media supplemented by 1% crude oil and identified as a diverse range of hydrocarbon-degrading bacteria involved in different successional stages of biodegradation. We screened the collection for biotechnological potential studying biosurfactant production, biofilm formation, and the capability to utilize different hydrocarbons. Some strains were able to grow on multiple hydrocarbons as unique carbon source and presented biosurfactant-like activities and/or capacity to form biofilm and owned genes involved in different detoxification/degradation processes. El-Max sediments represent a promising reservoir of novel bacterial strains adapted to high hydrocarbon contamination loads. The potential of the strains for exploitation for in situ intervention to combat pollution in coastal areas is discussed.
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Kaci A, Petit F, Lesueur P, Boust D, Vrel A, Berthe T. Distinct diversity of the czcA gene in two sedimentary horizons from a contaminated estuarine core. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:10787-10802. [PMID: 24894751 DOI: 10.1007/s11356-014-3029-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 05/08/2014] [Indexed: 06/03/2023]
Abstract
In estuarine ecosystems, trace metals are mainly associated with fine grain sediments which settle on mudflats. Over time, the layers of sediments accumulate and are then transformed by diagenetic processes, recording the history of the estuary's chemical contamination. In such a specific environment, we investigated to what extent a chronic exposure to contaminants could affect metal-resistant sedimentary bacteria in subsurface sediments. The occurrence and diversity of cadmium resistance genes (cadA, czcA) was investigated in 5- and 33-year-old sediments from a highly contaminated estuary (Seine France). Primers were designed to detect a 252-bp fragment of the czcA gene, specifically targeting a transmembrane helice domain (TMH IV) involved in the proton substrate antiport of this efflux pump. Although the cadA gene was not detected, the highest diversity of the sequence of the czcA gene was observed in the 5-year-old sediment. According to the percentage of identity at the amino acid level, the closest CzcA relatives were identified among Proteobacteria (α, β, γ, and δ), Verrucomicrobia, Nitrospirae, and Bacteroidetes. The most abundant sequences were affiliated with Stenotrophomonas. In contrast, in the 33-year-old sediment, CzcA sequences were mainly related to Rhodanobacter thiooxydans and Stenotrophomonas, suggesting a shaping of the metal-resistant microbial communities over time by both diagenetic processes and trace metal contamination.
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Affiliation(s)
- Assia Kaci
- CNRS, UMR 6143 M2C, Universités de Rouen-Caen, Normandie Université, 76821, Mont-Saint-Aignan, Cedex, France
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Deng MC, Li J, Liang FR, Yi M, Xu XM, Yuan JP, Peng J, Wu CF, Wang JH. Isolation and characterization of a novel hydrocarbon-degrading bacterium Achromobacter sp. HZ01 from the crude oil-contaminated seawater at the Daya Bay, southern China. MARINE POLLUTION BULLETIN 2014; 83:79-86. [PMID: 24775066 DOI: 10.1016/j.marpolbul.2014.04.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 04/04/2014] [Accepted: 04/06/2014] [Indexed: 05/27/2023]
Abstract
Microorganisms play an important role in the biodegradation of petroleum contaminants, which have attracted great concern due to their persistent toxicity and difficult biodegradation. In this paper, a novel hydrocarbon-degrading bacterium HZ01 was isolated from the crude oil-contaminated seawater at the Daya Bay, South China Sea, and identified as Achromobacter sp. Under the conditions of pH 7.0, NaCl 3% (w/v), temperature 28 °C and rotary speed 150 rpm, its degradability of the total n-alkanes reached up to 96.6% after 10 days of incubation for the evaporated diesel oil. Furthermore, Achromobacter sp. HZ01 could effectively utilize polycyclic aromatic hydrocarbons (PAHs) as its sole carbon source, and could remove anthracene, phenanthrene and pyrence about 29.8%, 50.6% and 38.4% respectively after 30 days of incubation. Therefore, Achromobacter sp. HZ01 may employed as an excellent degrader to develop one cost-effective and eco-friendly method for the bioremediation of marine environments polluted by crude oil.
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Affiliation(s)
- Mao-Cheng Deng
- Guangdong Provincial Education Department Key Laboratory of Marine Petroleum Exploration and Development, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China; Department of Food and Bioengineering, Guangdong Industry Technical College, Guangzhou 510300, People's Republic of China
| | - Jing Li
- College of Environment and Energy, South China University of Technology, Guangzhou 510641, People's Republic of China; Department of Food and Bioengineering, Guangdong Industry Technical College, Guangzhou 510300, People's Republic of China
| | - Fu-Rui Liang
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China
| | - Meisheng Yi
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China
| | - Xiao-Ming Xu
- Guangdong Provincial Education Department Key Laboratory of Marine Petroleum Exploration and Development, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China
| | - Jian-Ping Yuan
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China
| | - Juan Peng
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China
| | - Chou-Fei Wu
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China.
| | - Jiang-Hai Wang
- Guangdong Provincial Education Department Key Laboratory of Marine Petroleum Exploration and Development, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China.
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Patel V, Munot H, Shouche YS, Madamwar D. Response of bacterial community structure to seasonal fluctuation and anthropogenic pollution on coastal water of Alang-Sosiya ship breaking yard, Bhavnagar, India. BIORESOURCE TECHNOLOGY 2014; 161:362-370. [PMID: 24727696 DOI: 10.1016/j.biortech.2014.03.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 02/26/2014] [Accepted: 03/04/2014] [Indexed: 06/03/2023]
Abstract
Bacterial community structure was analyzed from coastal water of Alang-Sosiya ship breaking yard (ASSBY), world's largest ship breaking yard, near Bhavnagar, using 16S rRNA gene sequencing (cultured dependent and culture independent). In clone libraries, total 2324 clones were retrieved from seven samples (coastal water of ASSBY for three seasons along with one pristine coastal water) which were grouped in 525 operational taxonomic units. Proteobacteria was found to be dominant in all samples. In pristine samples, Gammaproteobacteria was found to be dominant, whereas in polluted samples dominancy of Gammaproteobacteria has shifted to Betaproteobacteria and Epsilonproteobacteria. Richness and diversity indices also indicated that bacterial community in pristine sample was the most diverse followed by summer, monsoon and winter samples. To the best of knowledge, this is the first study describing bacterial community structure from coastal water of ASSBY, and it suggests that seasonal fluctuation and anthropogenic pollutions alters the bacterial community structure.
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Affiliation(s)
- Vilas Patel
- Environmental Genomics and Proteomics Lab, BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India.
| | - Hitendra Munot
- Molecular Biology Unit, National Center for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Yogesh S Shouche
- Molecular Biology Unit, National Center for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Datta Madamwar
- Environmental Genomics and Proteomics Lab, BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India.
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