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Nazina TN, Tourova TP, Grouzdev DS, Bidzhieva SK, Poltaraus AB. A Novel View on the Taxonomy of Sulfate-Reducing Bacterium ' Desulfotomaculum salinum' and a Description of a New Species Desulfofundulus salinus sp. nov. Microorganisms 2024; 12:1115. [PMID: 38930497 PMCID: PMC11206085 DOI: 10.3390/microorganisms12061115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
Two thermophilic spore-forming sulfate-reducing strains, 435T and 781, were isolated from oil and gas reservoirs in Western Siberia (Russia) about 50 years ago. Both strains were found to be neutrophilic, chemoorganotrophic, anaerobic bacteria, growing at 45-70 °C (optimum, 55-60 °C) and with 0-4.5% (w/v) NaCl (optimum, 0.5-1% NaCl). The major fatty acids were iso-C15:0, iso-C17:0, C16:0, and C18:0. In sulfate-reducing conditions, the strains utilized H2/CO2, formate, lactate, pyruvate, malate, fumarate, succinate, methanol, ethanol, propanol, butanol, butyrate, valerate, and palmitate. In 2005, based on phenotypic characteristics and a 16S rRNA gene sequence analysis, the strains were described as 'Desulfotomaculum salinum' sp. nov. However, this species was not validly published because the type strain was not deposited in two culture collections. In this study, a genomic analysis of strain 435T was carried out to determine its taxonomic affiliation. The genome size of strain 435T was 2.886 Mb with a 55.1% genomic G + C content. The average nucleotide identity and digital DNA-DNA hybridization values were highest between strain 435T and members of the genus Desulfofundulus, 78.7-93.3% and 25.0-52.2%, respectively; these values were below the species delineation cut-offs (<95-96% and <70%). The cumulative phenotypic and phylogenetic data indicate that two strains represent a novel species within the genus Desulfofundulus, for which the name Desulfofundulus salinus sp. nov. is proposed. The type strain is 435T (=VKM B-1492T = DSM 23196T). A genome analysis of strain 435T revealed the genes for dissimilatory sulfate reduction, autotrophic carbon fixation via the Wood-Ljungdahl pathway, hydrogen utilization, methanol and organic acids metabolism, and sporulation, which were confirmed by cultivation studies.
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Affiliation(s)
- Tamara N. Nazina
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (T.P.T.); (S.K.B.)
| | - Tatyana P. Tourova
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (T.P.T.); (S.K.B.)
| | | | - Salimat K. Bidzhieva
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (T.P.T.); (S.K.B.)
| | - Andrey B. Poltaraus
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia;
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Friedeheim L, Boeren S, Sánchez-Andrea I, Stams AJM, Sousa DZ. Alcohol dehydrogenase system acts as the sole pathway for methanol oxidation in Desulfofundulus kuznetsovii strain TPOSR. Antonie Van Leeuwenhoek 2024; 117:47. [PMID: 38427176 PMCID: PMC10907483 DOI: 10.1007/s10482-024-01937-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 01/28/2024] [Indexed: 03/02/2024]
Abstract
Desulfofundulus kuznetsovii is a thermophilic, spore-forming sulphate-reducing bacterium in the family Peptococcaceae. In this study, we describe a newly isolated strain of D. kuznetsovii, strain TPOSR, and compare its metabolism to the type strain D. kuznetsovii 17T. Both strains grow on a large variety of alcohols, such as methanol, ethanol and propane-diols, coupled to the reduction of sulphate. Strain 17T metabolizes methanol via two routes, one involving a cobalt-dependent methyl transferase and the other using a cobalt-independent alcohol dehydrogenase. However, strain TPOSR, which shares 97% average nucleotide identity with D. kuznetsovii strain 17T, lacks several genes from the methyl transferase operon found in strain 17T. The gene encoding the catalytically active methyl transferase subunit B is missing, indicating that strain TPOSR utilizes the alcohol dehydrogenase pathway exclusively. Both strains grew with methanol during cobalt starvation, but growth was impaired. Strain 17T was more sensitive to cobalt deficiency, due to the repression of its methyl transferase system. Our findings shed light on the metabolic diversity of D. kuznetsovii and their metabolic differences of encoding one or two routes for the conversion of methanol.
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Affiliation(s)
- Lukas Friedeheim
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Sjef Boeren
- Laboratory of Biochemistry, Wageningen University and Research, Wageningen, The Netherlands
| | - Irene Sánchez-Andrea
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Alfons J M Stams
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Diana Z Sousa
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands.
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Bell E, Sherry A, Pilloni G, Suárez‐Suárez A, Cramm MA, Cueto G, Head IM, Hubert CRJ. Sediment cooling triggers germination and sulfate reduction by heat‐resistant thermophilic spore‐forming bacteria. Environ Microbiol 2019; 22:456-465. [DOI: 10.1111/1462-2920.14866] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Emma Bell
- School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne UK
| | - Angela Sherry
- School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne UK
| | | | - Ana Suárez‐Suárez
- School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne UK
| | - Margaret A. Cramm
- Department of Biological SciencesUniversity of Calgary Calgary Alberta Canada
| | - Guillermo Cueto
- School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne UK
| | - Ian M. Head
- School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne UK
| | - Casey R. J. Hubert
- School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne UK
- Department of Biological SciencesUniversity of Calgary Calgary Alberta Canada
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Slobodkin AI, Slobodkina GB. Diversity of Sulfur-Disproportionating Microorganisms. Microbiology (Reading) 2019. [DOI: 10.1134/s0026261719050138] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Lukina AP, Frank YA, Ivasenko DA, Glukhova LB, Danilova EV, Avakyan MR, Karnachuk OV. Isolation of New Thermophilic Sulfidogens from Microbial Mat Associated with Groundwater Discharge in the Tunkin Valley. Microbiology (Reading) 2019. [DOI: 10.1134/s0026261719050096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Grouzdev DS, Bidzhieva SK, Tourova TP, Krutkina MS, Poltaraus AB, Nazina TN. Draft Genome Sequence of a Sulfate-Reducing Bacterium, " Desulfofundulus salinum" 435 T, Isolated from a High-Temperature Gas Field in Russia. Microbiol Resour Announc 2018; 7:e01408-18. [PMID: 30533852 PMCID: PMC6284084 DOI: 10.1128/mra.01408-18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/02/2018] [Indexed: 11/20/2022] Open
Abstract
The draft genome sequence of the thermophilic sulfate-reducing bacterium "Desulfofundulus salinum" strain 435T, isolated from condensate water of the Igrim high-temperature gas field (Western Siberia, Russia), is presented here. The genome is annotated to elucidate the taxonomic position of strain 435T.
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Affiliation(s)
- Denis S. Grouzdev
- Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Salimat K. Bidzhieva
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Tatiyana P. Tourova
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Maria S. Krutkina
- Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Andrey B. Poltaraus
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Tamara N. Nazina
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russian Federation
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Zhang Y, Li J, Liu F, Yan H, Li J, Zhang X. Reduction of Gibbs free energy and enhancement of Methanosaeta by bicarbonate to promote anaerobic syntrophic butyrate oxidation. BIORESOURCE TECHNOLOGY 2018; 267:209-217. [PMID: 30025316 DOI: 10.1016/j.biortech.2018.06.098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/24/2018] [Accepted: 06/28/2018] [Indexed: 06/08/2023]
Abstract
Bicarbonate (HCO3-) has been extensively researched as a buffer in anaerobic digestion. The effect of HCO3- concentration on syntrophic butyrate oxidation process was evaluated by batch culturing of anaerobic activated sludge, and the mechanism was further revealed by the changes of Gibbs free energy (ΔG) and the interspecies transfers of electron and proton. The results showed that butyrate degradation rate was enhanced by 32.07% when the supplement of HCO3- increased from 0 to 0.20 mol/L. However, methane production and acetate degradation were strongly inhibited by HCO3- more than 0.10 mol/L. More function of HCO3- was found as 1) decreasing the ΔG of syntrophic methanogenesis of butyrate while increasing the ΔG of methanogenesis of acetate, 2) enriching M. harundinacea and M. concilii, 3) increasing the diffusion rate of protons between the syntrophic consortia. This work would increase the anaerobic digestion efficiency by enhancing the interaction of the syntrophic consortia.
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Affiliation(s)
- Yupeng Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, PR China
| | - Jianzheng Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, PR China.
| | - Fengqin Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, PR China
| | - Han Yan
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, PR China
| | - Jiuling Li
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Xue Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, PR China
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Zhang Y, Li J, Liu F, Yan H, Li J. Mediative mechanism of bicarbonate on anaerobic propionate degradation revealed by microbial community and thermodynamics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:12434-12443. [PMID: 29460248 DOI: 10.1007/s11356-018-1430-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 01/29/2018] [Indexed: 06/08/2023]
Abstract
Syntrophic acetogenesis of volatile fatty acids (VFAs) such as propionate and butyrate is considered as the rate-limiting step of anaerobic digestion. Though being extensively researched, the mechanism is not well understood as the main constraint on developing effective solutions to the practical problem. In the present research work, the mediation of methanogenic propionate degradation by exogenous bicarbonate was evaluated, while the mechanism was revealed by microbial community and thermodynamics. It was found that the exogenous bicarbonate not more than 0.10 mol/L acted as a mediative role to enrich syntrophic acetogenic bacteria and decrease the actual Gibbs free energy change (ΔG) of syntrophic acetogenesis reaction, resulted in the increased degradation rate and methane production rate of propionate. The remarkably increased ΔG of methanogenic propionate degradation by the exogenous bicarbonate more than 0.15 mol/L decreased the degradation rate and methane production rate of propionate, though the ΔG of syntrophic acetogenesis reaction was also decreased by the exogenous bicarbonate. This research work provided a control strategy to enhance syntrophic acetogenesis, as well as the methanogenic VFAs degradation.
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Affiliation(s)
- Yupeng Zhang
- School of Environment, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, People's Republic of China
| | - Jianzheng Li
- School of Environment, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, People's Republic of China.
| | - Fengqin Liu
- School of Environment, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, People's Republic of China
| | - Han Yan
- School of Environment, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, People's Republic of China
| | - Jiuling Li
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, Queensland, 4072, Australia
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Mystkowska J, Niemirowicz-Laskowska K, Łysik D, Tokajuk G, Dąbrowski JR, Bucki R. The Role of Oral Cavity Biofilm on Metallic Biomaterial Surface Destruction-Corrosion and Friction Aspects. Int J Mol Sci 2018; 19:E743. [PMID: 29509686 PMCID: PMC5877604 DOI: 10.3390/ijms19030743] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/23/2018] [Accepted: 03/03/2018] [Indexed: 12/14/2022] Open
Abstract
Metallic biomaterials in the oral cavity are exposed to many factors such as saliva, bacterial microflora, food, temperature fluctuations, and mechanical forces. Extreme conditions present in the oral cavity affect biomaterial exploitation and significantly reduce its biofunctionality, limiting the time of exploitation stability. We mainly refer to friction, corrosion, and biocorrosion processes. Saliva plays an important role and is responsible for lubrication and biofilm formation as a transporter of nutrients for microorganisms. The presence of metallic elements in the oral cavity may lead to the formation of electro-galvanic cells and, as a result, may induce corrosion. Transitional microorganisms such as sulfate-reducing bacteria may also be present among the metabolic microflora in the oral cavity, which can induce biological corrosion. Microorganisms that form a biofilm locally change the conditions on the surface of biomaterials and contribute to the intensification of the biocorrosion processes. These processes may enhance allergy to metals, inflammation, or cancer development. On the other hand, the presence of saliva and biofilm may significantly reduce friction and wear on enamel as well as on biomaterials. This work summarizes data on the influence of saliva and oral biofilms on the destruction of metallic biomaterials.
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Affiliation(s)
- Joanna Mystkowska
- Department of Materials Engineering and Production, Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C, 15-351 Bialystok, Poland.
| | - Katarzyna Niemirowicz-Laskowska
- Department of Microbiological and Nanobiomedical Engineering, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland.
| | - Dawid Łysik
- Department of Materials Engineering and Production, Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C, 15-351 Bialystok, Poland.
| | - Grażyna Tokajuk
- Department of Integrated Dentistry, Medical University of Bialystok, M. Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland.
| | - Jan R Dąbrowski
- Department of Materials Engineering and Production, Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C, 15-351 Bialystok, Poland.
| | - Robert Bucki
- Department of Microbiological and Nanobiomedical Engineering, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland.
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10
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Mardanov AV, Beletsky AV, Kadnikov VV, Slobodkin AI, Ravin NV. Genome Analysis of Thermosulfurimonas dismutans, the First Thermophilic Sulfur-Disproportionating Bacterium of the Phylum Thermodesulfobacteria. Front Microbiol 2016; 7:950. [PMID: 27379079 PMCID: PMC4911364 DOI: 10.3389/fmicb.2016.00950] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 06/02/2016] [Indexed: 11/17/2022] Open
Abstract
Thermosulfurimonas dismutans S95T, isolated from a deep-sea hydrothermal vent is the first bacterium of the phylum Thermodesulfobacteria reported to grow by the disproportionation of elemental sulfur, sulfite, or thiosulfate with carbon dioxide as the sole carbon source. In contrast to its phylogenetically close relatives, which are dissimilatory sulfate-reducers, T. dismutans is unable to grow by sulfate respiration. The features of this organism and its 2,1 Mb draft genome sequence are described in this report. Genome analysis revealed that the T. dismutans genome contains the set of genes for dissimilatory sulfate reduction including ATP sulfurylase, the AprA and B subunits of adenosine-5′-phosphosulfate reductase, and dissimilatory sulfite reductase. The oxidation of elemental sulfur to sulfite could be enabled by APS reductase-associated electron transfer complex QmoABC and heterodisulfide reductase. The genome also contains several membrane-linked molybdopterin oxidoreductases that are thought to be involved in sulfur metabolism as subunits of thiosulfate, polysulfide, or tetrathionate reductases. Nitrate could be used as an electron acceptor and reduced to ammonium, as indicated by the presence of periplasmic nitrate and nitrite reductases. Autotrophic carbon fixation is enabled by the Wood–Ljungdahl pathway, and the complete set of genes that is required for nitrogen fixation is also present in T. dismutans. Overall, our results provide genomic insights into energy and carbon metabolism of chemolithoautotrophic sulfur-disproportionating bacterium that could be important primary producer in microbial communities of deep-sea hydrothermal vents.
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Affiliation(s)
- Andrey V Mardanov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences Moscow, Russia
| | - Alexey V Beletsky
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences Moscow, Russia
| | - Vitaly V Kadnikov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences Moscow, Russia
| | - Alexander I Slobodkin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences Moscow, Russia
| | - Nikolai V Ravin
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences Moscow, Russia
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Mystkowska J, Ferreira JA, Leszczyńska K, Chmielewska S, Dąbrowski JR, Wieciński P, Kurzydłowski KJ. Biocorrosion of 316LV steel used in oral cavity due to Desulfotomaculum nigrificans bacteria. J Biomed Mater Res B Appl Biomater 2015; 105:222-229. [PMID: 26465349 DOI: 10.1002/jbm.b.33518] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 07/31/2015] [Accepted: 08/23/2015] [Indexed: 11/08/2022]
Abstract
Corrosion processes of metallic biomaterials in the oral cavity pose a significant limitation to the life and reliable functioning of dental materials. In this article, the influence of environment bacteria Desulfotomaculum nigrificans sulfate reducing bacteria on the corrosion processes of 316LV steel was assessed. After 14 and 28 days of contact of the material with the bacterial environment, the surfaces of the tested biomaterial were observed by means of confocal scanning laser microscopy, and their chemical composition was studied using X-Ray Photoelectron Spectrometry and a scanning transmission electron microscopy. Corrosive changes, the presence of sulfur (with atomic concentration of 0.5%) on the surface of the biomaterial and the presence of a thin oxide layer (thickness of ∼20 nm) under the surface of the steel were observed. This corrosion layer with significant size reduction of grains was characterized by an increased amount of oxygen (18% mas., p < 0.001) in comparison to untreated 316LV steel (where oxygen concentration - 10% mas.). Image analysis conducted using APHELION software indicated that corrosion pits took up ∼2.8% of the total tested surface. The greatest number of corrosion pits had a surface area within the range of 100-200 μm2 . © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 222-229, 2017.
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Affiliation(s)
- Joanna Mystkowska
- Department of Materials Science and Biomedical Engineering, Faculty of Mechanical Engineering, Bialystok University of Technology, Bialystok, 15-351, Poland
| | - Jose A Ferreira
- School of Medicine, Stanford University, Stanford, California.,Division of Infectious Diseases, California Institute for Medical Research, San Jose, California
| | - Katarzyna Leszczyńska
- Department of Microbiology, Faculty of Medicine with the Division of Dentistry and Division of Medical Education in English, Medical University of Bialystok, Bialystok, 15-222, Poland
| | - Sylwia Chmielewska
- Department of Microbiology, Faculty of Medicine with the Division of Dentistry and Division of Medical Education in English, Medical University of Bialystok, Bialystok, 15-222, Poland
| | - Jan Ryszard Dąbrowski
- Department of Materials Science and Biomedical Engineering, Faculty of Mechanical Engineering, Bialystok University of Technology, Bialystok, 15-351, Poland
| | - Piotr Wieciński
- Division of Materials Design, Faculty of Materials Engineering, Warsaw University of Technology, 02-507, Warsaw, Poland
| | - Krzysztof Jan Kurzydłowski
- Division of Materials Design, Faculty of Materials Engineering, Warsaw University of Technology, 02-507, Warsaw, Poland
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Cheng TW, Lin LH, Lin YT, Song SR, Wang PL. Temperature-dependent variations in sulfate-reducing communities associated with a terrestrial hydrocarbon seep. Microbes Environ 2014; 29:377-87. [PMID: 25273230 PMCID: PMC4262361 DOI: 10.1264/jsme2.me14086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Terrestrial hydrocarbon seeps are an important source of naturally emitted methane over geological time. The exact community compositions responsible for carbon cycling beneath these surface features remain obscure. As sulfate reduction represents an essential process for anoxic organic mineralization, this study collected muddy fluids from a high-temperature hydrocarbon seep in Taiwan and analyzed community structures of sulfate-supplemented sediment slurries incubated anoxically at elevated temperatures. The results obtained demonstrated that sulfate consumption occurred between 40°C and 80°C. Dominant potential sulfate reducers included Desulfovibrio spp., Desulfonatronum spp., Desulforhabdus spp., and Desulfotomaculum spp. at 40°C, Thermodesulfovibrio spp. at 50°C, Thermodesulfovibrio spp. and Thermacetogenium spp. at 60°C, Thermacetogenium spp. and Archaeoglobus spp. at 70°C, and Archaeoglobus spp. at 80°C. None of these potential sulfate reducers exceeded 7% of the community in the untreated sample. Since no exogenous electron donor was provided during incubation, these sulfate reducers appeared to rely on the degradation of organic matter inherited from porewater and sediments. Aqueous chemistry indicated that fluids discharged in the region represented a mixture of saline formation water and low-salinity surface water; therefore, these lines of evidence suggest that deeply-sourced, thermophilic and surface-input, mesophilic sulfate-reducing populations entrapped along the subsurface fluid transport could respond rapidly once the ambient temperature is adjusted to a range close to their individual optima.
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Mnif S, Bru-Adan V, Godon JJ, Sayadi S, Chamkha M. Characterization of the microbial diversity in production waters of mesothermic and geothermic Tunisian oilfields. J Basic Microbiol 2012; 53:45-61. [DOI: 10.1002/jobm.201100528] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Accepted: 12/03/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Sami Mnif
- Laboratory of Environmental Bioprocesses, Regional Pole of Excellence AUF (PER-LBPE) - Centre of Biotechnology of Sfax; University of Sfax; Sfax; Tunisia
| | - Valérie Bru-Adan
- INRA, UR50; Laboratory of Environmental Biotechnology; Avenue des Etangs, Narbonne; France
| | - Jean-Jacques Godon
- INRA, UR50; Laboratory of Environmental Biotechnology; Avenue des Etangs, Narbonne; France
| | - Sami Sayadi
- Laboratory of Environmental Bioprocesses, Regional Pole of Excellence AUF (PER-LBPE) - Centre of Biotechnology of Sfax; University of Sfax; Sfax; Tunisia
| | - Mohamed Chamkha
- Laboratory of Environmental Bioprocesses, Regional Pole of Excellence AUF (PER-LBPE) - Centre of Biotechnology of Sfax; University of Sfax; Sfax; Tunisia
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Kjeldsen KU, Tang L, Jørgensen MG, Ingvorsen K. Enumeration and identification of dominant types of sulfate-reducing bacteria in pulp from a paper-recycling plant: a multiphasic approach. FEMS Microbiol Ecol 2009; 69:481-94. [DOI: 10.1111/j.1574-6941.2009.00715.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Wakeman K, Auvinen H, Johnson DB. Microbiological and geochemical dynamics in simulated-heap leaching of a polymetallic sulfide ore. Biotechnol Bioeng 2008; 101:739-50. [PMID: 18496880 DOI: 10.1002/bit.21951] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The evolution of microbial populations involved in simulated-heap leaching of a polymetallic black schist sulfide ore (from the recently-commissioned Talvivaara mine, Finland) was monitored in aerated packed bed column reactors over a period of 40 weeks. The influence of ore particle size (2-6.5 mm and 6.5-12 mm) on changes in composition of the bioleaching microflora and mineral leaching dynamics in columns was investigated and compared to fine-grain (<2 microm) ore that was bioprocessed in shake flask cultures. Both column reactors and shake flasks were inoculated with 24 different species and strains of mineral-oxidizing and other acidophilic micro-organisms, and maintained at 37 degrees C. Mineral oxidation was most rapid in shake flask cultures, with about 80% of both manganese and nickel and 68% of zinc being leached within 6 weeks, though relatively little of the copper present in the ore was solubilised. The microbial consortium that emerged from the original inoculum was relatively simple in shake flasks, and was dominated by the iron-oxidizing autotroph Leptospirillum ferriphilum, with smaller numbers of Acidimicrobium ferrooxidans, Acidithiobacillus caldus and Leptospirillum ferrooxidans. Both metal recovery and (for the most part) total numbers of prokaryotes were greater in the column reactor containing the medium-grain than that containing the coarse-grain ore. The bioleaching communities in the columns displayed temporal changes in composition and differed radically from those in shake flask cultures. While iron-oxidizing chemoautotrophic bacteria were always the most numerically dominant bacteria in the medium-grain column bioreactor, there were major shifts in the most abundant species present, with the type strain of Acidithiobacillus ferrooxidans dominating in the early phase of the experiment and other bacteria (At. ferrooxidans NO37 and L. ferriphilum) dominating from week 4 to week 40. With the coarse-grain column bioreactor, similar transitions in populations of iron-oxidizing chemoautotrophs were observed, though heterotrophic acidophiles were often the most abundant bacteria found in mineral leach liquors. Four bacteria not included in the mixed culture used to inoculate the columns were detected by biomolecular techniques and three of these (all Alicyclobacillus-like Firmicutes) were isolated as pure cultures. The fourth bacterium, identified from a clone library, was related to the Gram-positive sulfate reducer Desulfotomaculum salinum. All four were considered to have been present as endospores on the dried ore, which was not sterilized in the column bioreactors. Two of the Alicyclobacillus-like isolates were found, transiently, in large numbers in mineral leachates. The data support the hypothesis that temporal and spatial heterogeneity in mineral heaps create conditions that favour different mineral-oxidizing microflora, and that it is therefore important that sufficient microbial diversity is present in heaps to optimize metal extraction.
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Affiliation(s)
- Kathryn Wakeman
- School of Biological Sciences, Bangor University, Wales LL572UW, United Kingdom
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