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Lyu L, Li J, Chen Y, Mai Z, Wang L, Li Q, Zhang S. Degradation potential of alkanes by diverse oil-degrading bacteria from deep-sea sediments of Haima cold seep areas, South China Sea. Front Microbiol 2022; 13:920067. [PMID: 36338091 PMCID: PMC9626528 DOI: 10.3389/fmicb.2022.920067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/28/2022] [Indexed: 11/17/2022] Open
Abstract
Marine oil spills are a significant concern worldwide, destroying the ecological environment and threatening the survival of marine life. Various oil-degrading bacteria have been widely reported in marine environments in response to marine oil pollution. However, little information is known about culturable oil-degrading bacteria in cold seep of the deep-sea environments, which are rich in hydrocarbons. This study enriched five oil-degrading consortia from sediments collected from the Haima cold seep areas of the South China Sea. Parvibaculum, Erythrobacter, Acinetobacter, Alcanivorax, Pseudomonas, Marinobacter, Halomonas, and Idiomarina were the dominant genera. Further results of bacterial growth and degradation ability tests indicated seven efficient alkane-degrading bacteria belonging to Acinetobacter, Alcanivorax, Kangiella, Limimaricola, Marinobacter, Flavobacterium, and Paracoccus, whose degradation rates were higher in crude oil (70.3–78.0%) than that in diesel oil (62.7–66.3%). From the view of carbon chain length, alkane degradation rates were medium chains > long chains > short chains. In addition, Kangiella aquimarina F7, Acinetobacter venetianus F1, Limimaricola variabilis F8, Marinobacter nauticus J5, Flavobacterium sediminis N3, and Paracoccus sediminilitoris N6 were first identified as oil-degrading bacteria from deep-sea environments. This study will provide insight into the bacterial community structures and oil-degrading bacterial diversity in the Haima cold seep areas, South China Sea, and offer bacterial resources to oil bioremediation applications.
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Affiliation(s)
- Lina Lyu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Lina Lyu,
| | - Jie Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
| | - Yu Chen
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
| | - Zhimao Mai
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Lin Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Qiqi Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Si Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- *Correspondence: Si Zhang,
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Mainka T, Weirathmüller D, Herwig C, Pflügl S. Potential applications of halophilic microorganisms for biological treatment of industrial process brines contaminated with aromatics. J Ind Microbiol Biotechnol 2021; 48:kuab015. [PMID: 33928348 PMCID: PMC9113102 DOI: 10.1093/jimb/kuab015] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/20/2021] [Indexed: 11/13/2022]
Abstract
Saline wastewater contaminated with aromatic compounds can be frequently found in various industrial sectors. Those compounds need to be degraded before reuse of wastewater in other process steps or release to the environment. Halophiles have been reported to efficiently degrade aromatics, but their application to treat industrial wastewater is rare. Halophilic processes for industrial wastewater treatment need to satisfy certain requirements: a continuous process mode, low operational expenditures, suitable reactor systems and a monitoring and control strategy. The aim of this review is to provide an overview of halophilic microorganisms, principles of aromatic biodegradation, and sources of saline wastewater containing aromatics and other contaminants. Finally, process examples for halophilic wastewater treatment and potential process monitoring strategies are discussed. To further illustrate the significant potential of halophiles for saline wastewater treatment and to facilitate development of ready-to-implement processes, future research should focus on scale-up and innovative process monitoring and control strategies.
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Affiliation(s)
- Thomas Mainka
- Institute for Chemical, Environmental and Bioscience
Engineering, TU Wien, Gumpendorfer Straße 1a, 1060
Vienna, Austria
- Competence Center CHASE GmbH,
Altenbergerstraße 69, 4040 Linz, Austria
| | - David Weirathmüller
- Institute for Chemical, Environmental and Bioscience
Engineering, TU Wien, Gumpendorfer Straße 1a, 1060
Vienna, Austria
| | - Christoph Herwig
- Institute for Chemical, Environmental and Bioscience
Engineering, TU Wien, Gumpendorfer Straße 1a, 1060
Vienna, Austria
- Competence Center CHASE GmbH,
Altenbergerstraße 69, 4040 Linz, Austria
| | - Stefan Pflügl
- Institute for Chemical, Environmental and Bioscience
Engineering, TU Wien, Gumpendorfer Straße 1a, 1060
Vienna, Austria
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3
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Pohlner M, Dlugosch L, Wemheuer B, Mills H, Engelen B, Reese BK. The Majority of Active Rhodobacteraceae in Marine Sediments Belong to Uncultured Genera: A Molecular Approach to Link Their Distribution to Environmental Conditions. Front Microbiol 2019; 10:659. [PMID: 31001232 PMCID: PMC6454203 DOI: 10.3389/fmicb.2019.00659] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 03/15/2019] [Indexed: 12/21/2022] Open
Abstract
General studies on benthic microbial communities focus on fundamental biogeochemical processes or the most abundant constituents. Thereby, minor fractions such as the Rhodobacteraceae are frequently neglected. Even though this family belongs to the most widely distributed bacteria in the marine environment, their proportion on benthic microbial communities is usually within or below the single digit range. Thus, knowledge on these community members is limited, even though their absolute numbers might exceed those from the pelagic zone by orders of magnitudes. To unravel the distribution and diversity of benthic, metabolically active Rhodobacteraceae, we have now analyzed an already existing library of bacterial 16S rRNA transcripts. The dataset originated from 154 individual sediment samples comprising seven oceanic regions and a broad variety of environmental conditions. Across all samples, a total of 0.7% of all 16S rRNA transcripts was annotated as Rhodobacteraceae. Among those, Sulfitobacter, Paracoccus, and Phaeomarinomonas were the most abundant cultured representatives, but the majority (78%) was affiliated to uncultured family members. To define them, the 45 most abundant Rhodobacteraceae-OTUs assigned as “uncultured” were phylogenetically assembled in new clusters. Their next relatives particularly belonged to different subgroups other than the Roseobacter group, reflecting a large part of the hidden diversity within the benthic Rhodobacteraceae with unknown functions. The general composition of active Rhodobacteraceae communities was found to be specific for the geographical location, exhibiting a decreasing richness with sediment depth. One-third of the Rhodobacteraceae-OTUs significantly responded to the prevailing redox regime, suggesting an adaption to anoxic conditions. A possible approach to predict their physiological properties is to identify the metabolic capabilities of their nearest relatives. Those need to be proven by physiological experiments, as soon an isolate is available. Because many uncultured members of these subgroups likely thrive under anoxic conditions, in future research, a molecular-guided cultivation strategy can be pursued to isolate novel Rhodobacteraceae from sediments.
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Affiliation(s)
- Marion Pohlner
- Paleomicrobiology Group, Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany
| | - Leon Dlugosch
- Group "Biology of Geological Processes", Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany
| | - Bernd Wemheuer
- Centre for Marine Bio-Innovation, The University of New South Wales, Sydney, NSW, Australia
| | - Heath Mills
- Rhodium Scientific LLC, San Antonio, TX, United States
| | - Bert Engelen
- Paleomicrobiology Group, Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany
| | - Brandi Kiel Reese
- Department of Life Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX, United States
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4
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Su Z, Dai T, Tang Y, Tao Y, Huang B, Mu Q, Wen D. Sediment bacterial community structures and their predicted functions implied the impacts from natural processes and anthropogenic activities in coastal area. MARINE POLLUTION BULLETIN 2018; 131:481-495. [PMID: 29886974 DOI: 10.1016/j.marpolbul.2018.04.052] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 04/20/2018] [Accepted: 04/20/2018] [Indexed: 06/08/2023]
Abstract
Coastal ecosystem structures and functions are changing under natural and anthropogenic influences. In this study, surface sediment samples were collected from disturbed zone (DZ), near estuary zone (NEZ), and far estuary zone (FEZ) of Hangzhou Bay, one of the most seriously polluted bays in China. The bacterial community structures and predicted functions varied significantly in different zones. Firmicutes were found most abundantly in DZ, highlighting the impacts of anthropogenic activities. Sediment total phosphorus was most influential on the bacterial community structures. Predicted by PICRUSt analysis, DZ significantly exceeded FEZ and NEZ in the subcategory of Xenobiotics Biodegradation and Metabolism; and DZ enriched all the nitrate reduction related genes, except nrfA gene. Seawater salinity and inorganic nitrogen, respectively as the representative natural and anthropogenic factor, performed exact-oppositely in nitrogen metabolism functions. The changes of bacterial community compositions and predicted functions provide a new insight into human-induced pollution impacts on coastal ecosystem.
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Affiliation(s)
- Zhiguo Su
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Tianjiao Dai
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Yushi Tang
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Yile Tao
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Bei Huang
- Zhejiang Provincial Zhoushan Marine Ecological Environmental Monitoring Station, Zhoushan 316021, China
| | - Qinglin Mu
- Zhejiang Provincial Zhoushan Marine Ecological Environmental Monitoring Station, Zhoushan 316021, China
| | - Donghui Wen
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
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Nikolaivits E, Dimarogona M, Fokialakis N, Topakas E. Marine-Derived Biocatalysts: Importance, Accessing, and Application in Aromatic Pollutant Bioremediation. Front Microbiol 2017; 8:265. [PMID: 28265269 PMCID: PMC5316534 DOI: 10.3389/fmicb.2017.00265] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 02/07/2017] [Indexed: 12/31/2022] Open
Abstract
The aim of the present review is to highlight the potential use of marine biocatalysts (whole cells or enzymes) as an alternative bioprocess for the degradation of aromatic pollutants. Firstly, information about the characteristics of the still underexplored marine environment and the available scientific tools used to access novel marine-derived biocatalysts is provided. Marine-derived enzymes, such as dioxygenases and dehalogenases, and the involved catalytic mechanisms for the degradation of aromatic and halogenated compounds, are presented, with the purpose of underpinning their potential use in bioremediation. Emphasis is given on persistent organic pollutants (POPs) that are organic compounds with significant impact on health and environment due to their resistance in degradation. POPs bioaccumulate mainly in the fatty tissue of living organisms, therefore current efforts are mostly focused on the restriction of their use and production, since their removal is still unclear. A brief description of the guidelines and criteria that render a pollutant POP is given, as well as their potential biodegradation by marine microorganisms by surveying recent developments in this rather unexplored field.
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Affiliation(s)
- Efstratios Nikolaivits
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens Athens, Greece
| | - Maria Dimarogona
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens Athens, Greece
| | - Nikolas Fokialakis
- Division of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, University of Athens Athens, Greece
| | - Evangelos Topakas
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens Athens, Greece
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6
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Duran R, Cravo-Laureau C. Role of environmental factors and microorganisms in determining the fate of polycyclic aromatic hydrocarbons in the marine environment. FEMS Microbiol Rev 2016; 40:814-830. [PMID: 28201512 PMCID: PMC5091036 DOI: 10.1093/femsre/fuw031] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 12/28/2015] [Accepted: 07/24/2016] [Indexed: 11/14/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widespread in marine ecosystems and originate from natural sources and anthropogenic activities. PAHs enter the marine environment in two main ways, corresponding to chronic pollution or acute pollution by oil spills. The global PAH fluxes in marine environments are controlled by the microbial degradation and the biological pump, which plays a role in particle settling and in sequestration through bioaccumulation. Due to their low water solubility and hydrophobic nature, PAHs tightly adhere to sediments leading to accumulation in coastal and deep sediments. Microbial assemblages play an important role in determining the fate of PAHs in water and sediments, supporting the functioning of biogeochemical cycles and the microbial loop. This review summarises the knowledge recently acquired in terms of both chronic and acute PAH pollution. The importance of the microbial ecology in PAH-polluted marine ecosystems is highlighted as well as the importance of gaining further in-depth knowledge of the environmental services provided by microorganisms.
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Affiliation(s)
- Robert Duran
- Equipe Environnement et Microbiologie, MELODY group, Université de Pau et des Pays de l'Adour, Pau Cedex, France
| | - Cristiana Cravo-Laureau
- Equipe Environnement et Microbiologie, MELODY group, Université de Pau et des Pays de l'Adour, Pau Cedex, France
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7
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Aubé J, Senin P, Pringault O, Bonin P, Deflandre B, Bouchez O, Bru N, Biritxinaga-Etchart E, Klopp C, Guyoneaud R, Goñi-Urriza M. The impact of long-term hydrocarbon exposure on the structure, activity, and biogeochemical functioning of microbial mats. MARINE POLLUTION BULLETIN 2016; 111:115-125. [PMID: 27449831 DOI: 10.1016/j.marpolbul.2016.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 07/11/2016] [Accepted: 07/16/2016] [Indexed: 06/06/2023]
Abstract
Photosynthetic microbial mats are metabolically structured systems driven by solar light. They are ubiquitous and can grow in hydrocarbon-polluted sites. Our aim is to determine the impact of chronic hydrocarbon contamination on the structure, activity, and functioning of a microbial mat. We compared it to an uncontaminated mat harboring similar geochemical characteristics. The mats were sampled in spring and fall for 2years. Seasonal variations were observed for the reference mat: sulfur cycle-related bacteria dominated spring samples, while Cyanobacteria dominated in autumn. The contaminated mat showed minor seasonal variation; a progressive increase of Cyanobacteria was noticed, indicating a perturbation of the classical seasonal behavior. Hydrocarbon content was the main factor explaining the differences in the microbial community structure; however, hydrocarbonoclastic bacteria were among rare or transient Operational Taxonomic Units (OTUs) in the contaminated mat. We suggest that in long-term contaminated systems, hydrocarbonoclastic bacteria cannot be considered a sentinel of contamination.
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Affiliation(s)
- Johanne Aubé
- Equipe Environnement et Microbiologie, IPREM UMR CNRS 5254, Université de Pau et des Pays de l'Adour, IBEAS, BP 1155, 64013 Pau Cedex, France.
| | - Pavel Senin
- Equipe Environnement et Microbiologie, IPREM UMR CNRS 5254, Université de Pau et des Pays de l'Adour, IBEAS, BP 1155, 64013 Pau Cedex, France; Plateforme Bioinformatique Genotoul, UR875, Biométrie et Intelligence Artificielle, INRA, 31326 Castanet-Tolosan, France.
| | - Olivier Pringault
- UMR 9190 MARBEC IRD-Ifremer-CNRS, Université de Montpellier, Place Eugène Bataillon, Case 093, 34095 Montpellier Cedex 5, France.
| | - Patricia Bonin
- MIO, Institut Méditerranéen d'Océanologie, UMR 7294, F13288 Marseille, France.
| | - Bruno Deflandre
- EPOC, UMR 5805, Université de Bordeaux, F33615 Pessac, France.
| | - Olivier Bouchez
- GeT-PlaGe, Genotoul, INRA Auzeville, F31326 Castanet-Tolosan, France.
| | - Noëlle Bru
- Université de Pau et des Pays de l'Adour, Laboratoire de Mathématiques et de leurs Applications de Pau, UMR CNRS 5142, FED 4155 MIRA, Campus Montaury, 64600 Anglet, France.
| | - Edurne Biritxinaga-Etchart
- Université de Pau et des Pays de l'Adour, Laboratoire de Mathématiques et de leurs Applications de Pau, UMR CNRS 5142, FED 4155 MIRA, Campus Montaury, 64600 Anglet, France.
| | - Christophe Klopp
- Plateforme Bioinformatique Genotoul, UR875, Biométrie et Intelligence Artificielle, INRA, 31326 Castanet-Tolosan, France.
| | - Rémy Guyoneaud
- Equipe Environnement et Microbiologie, IPREM UMR CNRS 5254, Université de Pau et des Pays de l'Adour, IBEAS, BP 1155, 64013 Pau Cedex, France.
| | - Marisol Goñi-Urriza
- Equipe Environnement et Microbiologie, IPREM UMR CNRS 5254, Université de Pau et des Pays de l'Adour, IBEAS, BP 1155, 64013 Pau Cedex, France.
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8
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Jiang R, Wang JX, Huang B, Yu KC, Zhang P, Zheng JW, Liu XZ. Phylogenetic analysis of bacterial community composition in sediments with organic contaminants from the Jiaojiang estuary in China. MARINE POLLUTION BULLETIN 2016; 109:558-565. [PMID: 27234368 DOI: 10.1016/j.marpolbul.2016.03.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 03/17/2016] [Accepted: 03/20/2016] [Indexed: 05/20/2023]
Abstract
The aim of this study was to investigate the bacterial community composition, the concentration of organic contaminants, and their relationship in the sediments of Jiaojiang estuary. Sediments were collected from seven stations and the environmental parameters were analyzed. The results showed that the site closest to the chemical industry zone was the most polluted. Bacterial communities were determined using 16S rRNA clone libraries and phylogenetic analysis. These results revealed that there were 13 known bacterial phyla in the sediments and that Proteobacteria were the dominant group. Using these data, we assessed the correlation between bacterial communities and organic contaminants using cluster, multidimensional scaling, and redundancy analyses. These showed that there was no simple relationship between organic contaminants and bacterial community diversity in the sediments, but polycyclic aromatic hydrocarbons were more influential than the other pollutants and negatively affected Chloroflexi.
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Affiliation(s)
- Ran Jiang
- Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China
| | - Jian-Xin Wang
- Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Bei Huang
- Zhejiang Provincial Zhoushan Marine Ecological Environmental Monitoring Station, Zhoushan 316021, China
| | - Kai-Cheng Yu
- Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China
| | - Pan Zhang
- Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China
| | - Jun-Wei Zheng
- Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China
| | - Xue-Zhu Liu
- Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China.
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9
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Ismail W, El-Sayed WS, Abdul Raheem AS, Mohamed ME, El Nayal AM. Biocatalytic Desulfurization Capabilities of a Mixed Culture during Non-Destructive Utilization of Recalcitrant Organosulfur Compounds. Front Microbiol 2016; 7:266. [PMID: 26973637 PMCID: PMC4776162 DOI: 10.3389/fmicb.2016.00266] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 02/18/2016] [Indexed: 01/16/2023] Open
Abstract
We investigated the biodesulfurization potential of a mixed culture AK6 enriched from petroleum hydrocarbons-polluted soil with dibenzothiophene (DBT) as a sulfur source. In addition to DBT, AK6 utilized the following compounds as sulfur sources: 4-methyldibenzothiophene (4-MDBT), benzothiophene (BT), and 4,6- dimethyldibenzothiophene (4,6-DM-DBT). None of these compounds supported the growth of AK6 as the sole carbon and sulfur source. AK6 could not grow on dibenzylsulfide (DBS) as a sulfur source. The AK6 community structure changed according to the provided sulfur source. The major DGGE bands represented members of the genera Sphingobacterium, Klebsiella, Pseudomonas, Stenotrophomonas, Arthrobacter, Mycobacterium, and Rhodococcus. Sphingobacterium sp. and Pseudomonas sp. were abundant across all cultures utilizing any of the tested thiophenic S-compounds. Mycobacterium/Rhodococcus spp. were restricted to the 4-MDBT culture. The 4-MDBT culture had the highest species richness and diversity. Biodesulfurization of DBT by resting cells of AK6 produced 2-hydroxybiphenyl (2-HBP) in addition to trace amounts of phenylacetate. AK6 transformed DBT to 2-hydroxybiphenyl with a specific activity of 9 ± 0.6 μM 2-HBP g dry cell weight−1 h−1. PCR confirmed the presence in the AK6 community of the sulfur-specific (4S) pathway genes dszB and dszC. Mixed cultures hold a better potential than axenic ones for the development of a biodesulfurization technology.
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Affiliation(s)
- Wael Ismail
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University Manama, Bahrain
| | - Wael S El-Sayed
- Biology Department, Faculty of Science, Taibah University Al-Madinah Al-Monawarah, Saudi Arabia
| | - Abdul Salam Abdul Raheem
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University Manama, Bahrain
| | - Magdy E Mohamed
- Botany and Microbiology Department, Faculty of Science, Cairo University Giza, Egypt
| | - Ashraf M El Nayal
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University Manama, Bahrain
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10
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Caruso G, La Ferla R, Azzaro M, Zoppini A, Marino G, Petochi T, Corinaldesi C, Leonardi M, Zaccone R, Fonda Umani S, Caroppo C, Monticelli L, Azzaro F, Decembrini F, Maimone G, Cavallo RA, Stabili L, Hristova Todorova N, K. Karamfilov V, Rastelli E, Cappello S, Acquaviva MI, Narracci M, De Angelis R, Del Negro P, Latini M, Danovaro R. Microbial assemblages for environmental quality assessment: Knowledge, gaps and usefulness in the European Marine Strategy Framework Directive. Crit Rev Microbiol 2015; 42:883-904. [DOI: 10.3109/1040841x.2015.1087380] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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11
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Ortmann AC, Lu Y. Initial community and environment determine the response of bacterial communities to dispersant and oil contamination. MARINE POLLUTION BULLETIN 2015; 90:106-114. [PMID: 25487088 DOI: 10.1016/j.marpolbul.2014.11.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 11/02/2014] [Accepted: 11/10/2014] [Indexed: 06/04/2023]
Abstract
Bioremediation of seawater by natural bacterial communities is one potential response to coastal oil spills, but the success of the approach may vary, depending on geographical location, oil composition and the timing of spill. The short term response of coastal bacteria to dispersant, oil and dispersed oil was characterized using 16S rRNA gene tags in two mesocosm experiments conducted two months apart. Despite differences in the amount of oil-derived alkanes across the treatments and experiments, increases in the contributions of hydrocarbon degrading taxa and decreases in common estuarine bacteria were observed in response to dispersant and/or oil. Between the two experiments, the direction and rates of changes in particulate alkane concentrations differed, as did the magnitude of the bacterial response to oil and/or dispersant. Together, our data underscore large variability in bacterial responses to hydrocarbon pollutants, implying that bioremediation success varies with starting biological and environmental conditions.
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Affiliation(s)
- Alice C Ortmann
- Department of Marine Sciences, University of South Alabama, 307 University Blvd, Mobile, AL 36688, United States; Dauphin Island Sea Lab, 101B Bienville Blvd, Dauphin Island, AL 36528, United States.
| | - YueHan Lu
- Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, United States
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