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Ale Enriquez F, Ahring BK. Phenotypic and genomic characterization of Methanothermobacter wolfeii strain BSEL, a CO 2-capturing archaeon with minimal nutrient requirements. Appl Environ Microbiol 2024; 90:e0026824. [PMID: 38619268 PMCID: PMC11107166 DOI: 10.1128/aem.00268-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/17/2024] [Indexed: 04/16/2024] Open
Abstract
A new variant of Methanothermobacter wolfeii was isolated from an anaerobic digester using enrichment cultivation in anaerobic conditions. The new isolate was taxonomically identified via 16S rRNA gene sequencing and tagged as M. wolfeii BSEL. The whole genome of the new variant was sequenced and de novo assembled. Genomic variations between the BSEL strain and the type strain were discovered, suggesting evolutionary adaptations of the BSEL strain that conferred advantages while growing under a low concentration of nutrients. M. wolfeii BSEL displayed the highest specific growth rate ever reported for the wolfeii species (0.27 ± 0.03 h-1) using carbon dioxide (CO2) as unique carbon source and hydrogen (H2) as electron donor. M. wolfeii BSEL grew at this rate in an environment with ammonium (NH4+) as sole nitrogen source. The minerals content required to cultivate the BSEL strain was relatively low and resembled the ionic background of tap water without mineral supplements. Optimum growth rate for the new isolate was observed at 64°C and pH 8.3. In this work, it was shown that wastewater from a wastewater treatment facility can be used as a low-cost alternative medium to cultivate M. wolfeii BSEL. Continuous gas fermentation fed with a synthetic biogas mimic along with H2 in a bubble column bioreactor using M. wolfeii BSEL as biocatalyst resulted in a CO2 conversion efficiency of 97% and a final methane (CH4) titer of 98.5%v, demonstrating the ability of the new strain for upgrading biogas to renewable natural gas.IMPORTANCEAs a methanogenic archaeon, Methanothermobacter wolfeii uses CO2 as electron acceptor, producing CH4 as final product. The metabolism of M. wolfeii can be harnessed to capture CO2 from industrial emissions, besides producing a drop-in renewable biofuel to substitute fossil natural gas. If used as biocatalyst in new-generation CO2 sequestration processes, M. wolfeii has the potential to accelerate the decarbonization of the energy generation sector, which is the biggest contributor of CO2 emissions worldwide. Nonetheless, the development of CO2 sequestration archaeal-based biotechnology is still limited by an uncertainty in the requirements to cultivate methanogenic archaea and the unknown longevity of archaeal cultures. In this study, we report the adaptation, isolation, and phenotypic characterization of a novel variant of M. wolfeii, which is capable of maximum growth with minimal nutrients input. Our findings demonstrate the potential of this variant for the production of renewable natural gas, paving the way for the development of more efficient and sustainable CO2 sequestration processes.
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Affiliation(s)
- Fuad Ale Enriquez
- Bioproducts, Sciences, and Engineering Laboratory, Washington State University, Tri-Cities, Richland, Washington, USA
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington, USA
| | - Birgitte K. Ahring
- Bioproducts, Sciences, and Engineering Laboratory, Washington State University, Tri-Cities, Richland, Washington, USA
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington, USA
- Biological Systems Engineering Department, Washington State University, Pullman, Washington, USA
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2
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Cheng W, Fan H, Yun Y, Zhao X, Su Z, Tian X, Liu D, Ma T, Li G. Effects of nutrient injection on the Xinjiang oil field microbial community studied in a long core flooding simulation device. Front Microbiol 2023; 14:1230274. [PMID: 37901819 PMCID: PMC10602641 DOI: 10.3389/fmicb.2023.1230274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/21/2023] [Indexed: 10/31/2023] Open
Abstract
Microbial Enhanced Oil Recovery (MEOR) is an option for recovering oil from depleted reservoirs. Numerous field trials of MEOR have confirmed distinct microbial community structure in diverse production wells within the same block. The variance in the reservoir microbial communities, however, remains ambiguously documented. In this study, an 8 m long core microbial flooding simulation device was built on a laboratory scale to study the dynamic changes of the indigenous microbial community structure in the Qizhong Block, Xinjiang oil field. During the MEOR, there was an approximate 34% upswing in oil extraction. Based on the 16S rRNA gene high-throughput sequencing, our results indicated that nutrition was one of the factors affecting the microbial communities in oil reservoirs. After the introduction of nutrients, hydrocarbon oxidizing bacteria became active, followed by the sequential activation of facultative anaerobes and anaerobic fermenting bacteria. This was consistent with the hypothesized succession of a microbial ecological "food chain" in the reservoir, which preliminarily supported the two-step activation theory for reservoir microbes transitioning from aerobic to anaerobic states. Furthermore, metagenomic results indicated that reservoir microorganisms had potential functions of hydrocarbon degradation, gas production and surfactant production. Understanding reservoir microbial communities and improving oil recovery are both aided by this work.
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Affiliation(s)
- Wei Cheng
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Huiqiang Fan
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Yuan Yun
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Xueqing Zhao
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhaoying Su
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Xuefeng Tian
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Dakun Liu
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Ting Ma
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
- Tianjin Engineering Technology Center of Green Manufacturing Biobased Materials, Tianjin, China
| | - Guoqiang Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
- Tianjin Engineering Technology Center of Green Manufacturing Biobased Materials, Tianjin, China
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3
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pH and Nitrate Drive Bacterial Diversity in Oil Reservoirs at a Localized Geographic Scale. Microorganisms 2023; 11:microorganisms11010151. [PMID: 36677443 PMCID: PMC9865607 DOI: 10.3390/microorganisms11010151] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/27/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Oil reservoirs are one of the most important deep subsurface biospheres. They are inhabited by diverse microorganisms including bacteria and archaea with diverse metabolic activities. Although recent studies have investigated the microbial communities in oil reservoirs at large geographic scales, it is still not clear how the microbial communities assemble, as the variation in the environment may be confounded with geographic distance. In this work, the microbial communities in oil reservoirs from the same oil field were identified at a localized geographic scale. We found that although the injected water contained diverse exogenous microorganisms, this had little effect on the microbial composition of the produced water. The Neutral Community Model analysis showed that both bacterial and archaeal communities are dispersal limited even at a localized scale. Further analysis showed that both pH and nitrate concentrations drive the assembly of bacterial communities, of which nitrate negatively correlated with bacterial alpha diversity and pH differences positively correlated with the dissimilarity of bacterial communities. In contrast, the physiochemical parameters had little effect on archaeal communities at the localized scale. Our results suggest that the assembly of microbial communities in oil reservoirs is scale- and taxonomy-dependent. Our work provides a comprehensive analysis of microbial communities in oil reservoirs at a localized geographic scale, which improves the understanding of the assembly of the microbial communities in oil reservoirs.
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4
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Gao P, Li Y, Tian H, Li G, Zhao F, Xia W, Pan X, Gu JD, Le J, Jia C, Ma T. Bacterial and Archaeal Community Distribution in Oilfield Water Re-injection Facilities and the Influences from Microorganisms in Injected Water. MICROBIAL ECOLOGY 2022; 84:1011-1028. [PMID: 34845558 DOI: 10.1007/s00248-021-01933-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
Water flooding is widely employed for oil production worldwide. However, there has never been a systematic investigation of the microbial communities occurring in oilfield water re-injection facilities. Here, we investigated the distribution of bacterial and archaeal communities in water re-injection facilities of an oilfield, and illustrated the combined influences of environmental variation and the microorganisms in injected water on the microbial communities. Bacterial communities from the surface injection facilities were dominated by aerobic or facultative anaerobic Betaproteobacteria, Alphaproteobacteria, and Flavobacteria, whereas Clostridia, Deltaproteobacteria, Anaerolineae, and Synergistia predominated in downhole of the injection wells, and Gammaproteobacteria, Betaproteobacteria, and Epsilonproteobacteria predominated in the production wells. Methanosaeta, Methanobacterium, and Methanolinea were dominant archaea in the injection facilities, while Methanosaeta, Methanomethylovorans, and Methanoculleus predominated in the production wells. This study also demonstrated that the microorganisms in injected water could be easily transferred from injection station to wellheads and downhole of injection wells, and environmental variation and diffusion-limited microbial transfer resulted from formation filtration were the main factors determining microbial community assembly in oil-bearing strata. The results provide novel information on the bacterial and archaeal communities and the underlying mechanisms occurring in oilfield water re-injection facilities, and benefit the development of effective microbiologically enhanced oil recovery and microbiologically prevented reservoir souring programs.
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Affiliation(s)
- Peike Gao
- College of Life Sciences, Qufu Normal University, Qufu, 273165, Shandong, China.
| | - Yu Li
- College of Life Sciences, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Huimei Tian
- College of Forestry, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Guoqiang Li
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Feng Zhao
- College of Life Sciences, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Wenjie Xia
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Xunli Pan
- College of Life Sciences, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Ji-Dong Gu
- Environmental Engineering, Guangdong Technion - Israel Institute of Technology, Shantou, 515063, Guangdong, China
| | - Jianjun Le
- Daqing Oilfield Company Ltd Exploration and Development Research Institute, Daqing, 163000, Heilongjiang, China
| | - Chuanxing Jia
- College of Life Sciences, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Ting Ma
- College of Life Sciences, Nankai University, Tianjin, 300071, China.
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5
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McLeish AG, Greenfield P, Midgley DJ, Paulsen IT. Desulfuromonas sp. 'CSMB_57', isolation and genomic insights from the most abundant bacterial taxon in eastern Australian coals. Microb Genom 2022; 8. [PMID: 35997693 PMCID: PMC9484754 DOI: 10.1099/mgen.0.000857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
One of the most abundant and ubiquitous taxa observed in eastern Australian coal seams is an uncultured Desulfuromonas species and part of the Coal Seam Microbiome dataset assigned as 'CSMB_57'. Despite this abundance and ubiquity, knowledge about this taxon is limited. The present study aimed to generate an enrichment culture of Desulfuromonas sp. 'CSMB_57' using culturing strategies that exploit its sulphur-reducing capabilities by utilizing a polysulfide solution in a liquid medium. Using dilution to extinction methods, a highly enriched culture was successfully generated. The full-length 16S rRNA sequence revealed that all closely related taxa were observed in subsurface environments suggesting that D. sp. 'CSMB_57' may be a subsurface specialist. Subsequently, the DNA from the enrichment culture was sequenced and the genome of D. sp. 'CSMB_57' was assembled. Genomic annotation revealed a high number of CRISPR arrays for viral defence, a large array of ABC transporters for amino acid and peptide uptake, as well as genes likely associated with syntrophy such as genes associated with type-IVa pilus, often used for direct interspecies electron transfer, and multiple hydrogenases capable of producing hydrogen. From the various genomic observations, a conceptual ecological model was developed that explores its possible syntrophic roles with hydrogenotrophic methanogens and acetogenic bacteria within coal-seam environments.
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Affiliation(s)
- Andrew G McLeish
- Department of Molecular Sciences, Macquarie University, North Ryde, Sydney, Australia.,Department of Energy, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Lindfield, Sydney, Australia
| | - Paul Greenfield
- Department of Energy, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Lindfield, Sydney, Australia.,Department of Biological Sciences, Macquarie University, North Ryde, Sydney, Australia
| | - David J Midgley
- Department of Energy, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Lindfield, Sydney, Australia
| | - Ian T Paulsen
- Department of Molecular Sciences, Macquarie University, North Ryde, Sydney, Australia
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6
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Hu B, Zhao JY, Nie Y, Qin XY, Zhang KD, Xing JM, Wu XL. Bioemulsification and Microbial Community Reconstruction in Thermally Processed Crude Oil. Microorganisms 2021; 9:microorganisms9102054. [PMID: 34683375 PMCID: PMC8539444 DOI: 10.3390/microorganisms9102054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 11/16/2022] Open
Abstract
Utilization of low-cost, environmental-friendly microbial enhanced oil recovery (MEOR) techniques in thermal recovery-processed oil reservoirs is potentially feasible. However, how exogenous microbes facilitate crude oil recovery in this deep biosphere, especially under mesophilic conditions, is scarcely investigated. In this study, a thermal treatment and a thermal recurrence were processed on crude oil collected from Daqing Oilfield, and then a 30-day incubation of the pretreated crude oil at 37 °C was operated with the addition of two locally isolated hydrocarbon-degrading bacteria, Amycolicicoccus subflavus DQS3-9A1T and Dietzia sp. DQ12-45-1b, respectively. The pH, surface tension, hydrocarbon profiles, culture-dependent cell densities and taxonomies, and whole and active microbial community compositions were determined. It was found that both A. subflavus DQS3-9A1T and Dietzia sp. DQ12-45-1b successfully induced culture acidification, crude oil bioemulsification, and residual oil sub-fraction alteration, no matter whether the crude oil was thermally pretreated or not. Endogenous bacteria which could proliferate on double heated crude oil were very few. Compared with A. subflavus, Dietzia sp. was substantially more effective at inducing the proliferation of varied species in one-time heated crude oil. Meanwhile, the effects of Dietzia sp. on crude oil bioemulsification and hydrocarbon profile alteration were not significantly influenced by the ploidy increasing of NaCl contents (from 5 g/L to 50 g/L), but the reconstructed bacterial communities became very simple, in which the Dietzia genus was predominant. Our study provides useful information to understand MEOR trials on thermally processed oil reservoirs, and proves that this strategy could be operated by using the locally available hydrocarbon-degrading microbes in mesophilic conditions with different salinity degrees.
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Affiliation(s)
- Bing Hu
- Group of Biochemical Engineering, Department of Chemical Engineering, College of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102401, China;
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology of China, Beijing 102401, China
| | - Jie-Yu Zhao
- College of Engineering, Peking University, Beijing 100871, China; (J.-Y.Z.); (X.-Y.Q.); (K.-D.Z.)
| | - Yong Nie
- College of Engineering, Peking University, Beijing 100871, China; (J.-Y.Z.); (X.-Y.Q.); (K.-D.Z.)
- Correspondence: (Y.N.); (X.-L.W.)
| | - Xiao-Yu Qin
- College of Engineering, Peking University, Beijing 100871, China; (J.-Y.Z.); (X.-Y.Q.); (K.-D.Z.)
| | - Kai-Duan Zhang
- College of Engineering, Peking University, Beijing 100871, China; (J.-Y.Z.); (X.-Y.Q.); (K.-D.Z.)
| | - Jian-Min Xing
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiao-Lei Wu
- College of Engineering, Peking University, Beijing 100871, China; (J.-Y.Z.); (X.-Y.Q.); (K.-D.Z.)
- Institute of Ecology, Peking University, Beijing 100871, China
- Correspondence: (Y.N.); (X.-L.W.)
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7
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Zhao JY, Hu B, Dolfing J, Li Y, Tang YQ, Jiang Y, Chi CQ, Xing J, Nie Y, Wu XL. Thermodynamically favorable reactions shape the archaeal community affecting bacterial community assembly in oil reservoirs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 781:146506. [PMID: 33794455 DOI: 10.1016/j.scitotenv.2021.146506] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/19/2021] [Accepted: 03/11/2021] [Indexed: 02/07/2023]
Abstract
Microbial community assembly mechanisms are pivotal for understanding the ecological functions of microorganisms in biogeochemical cycling in Earth's ecosystems, yet rarely investigated in the context of deep terrestrial ecology. Here, the microbial communities in the production waters collected from water injection wells and oil production wells across eight oil reservoirs throughout northern China were determined and analyzed by proportional distribution analysis and null model analysis. A 'core' microbiota consisting of three bacterial genera, including Arcobacter, Pseudomonas and Acinetobacter, and eight archaeal genera, including Archaeoglobus, Methanobacterium, Methanothermobacter, unclassified Methanobacteriaceae, Methanomethylovorans, Methanoculleus, Methanosaeta and Methanolinea, was found to be present in all production water samples. Canonical correlation analysis reflected that the core archaea were significantly influenced by temperature and reservoir depth, while the core bacteria were affected by the combined impact of the core archaea and environmental factors. Thermodynamic calculations indicate that bioenergetic constraints are the driving force that governs the enrichment of two core archaeal guilds, aceticlastic methanogens versus hydrogenotrophic methanogens, in low- and high-temperature oil reservoirs, respectively. Collectively, our study indicates that microbial community structures in wells of oil reservoirs are structured by the thermodynamic window of opportunity, through which the core archaeal communities are accommodated directly followed by the deterministic recruiting of core bacterial genera, and then the stochastic selection of some other microbial members from local environments. Our study enhances the understanding of the microbial assembly mechanism in deep terrestrial habitats. Meanwhile, our findings will support the development of functional microbiota used for bioremediation and bioaugmentation in microbial enhanced oil recovery.
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Affiliation(s)
- Jie-Yu Zhao
- College of Engineering, Peking University, Beijing, China
| | - Bing Hu
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology of China; Institute of Biochemical Engineering, Department of Chemical Engineering, College of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, China
| | - Jan Dolfing
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8QH, United Kingdom
| | - Yan Li
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Yue-Qin Tang
- College of Architecture and Environment, Sichuan University, Chengdu, China
| | - Yiming Jiang
- Institute of Virology, Helmholtz Zentrum München/Technical University of Munich, Munich, Germany
| | - Chang-Qiao Chi
- College of Engineering, Peking University, Beijing, China
| | - Jianmin Xing
- CAS Key Laboratory of Green Process and Engineering & State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Yong Nie
- College of Engineering, Peking University, Beijing, China.
| | - Xiao-Lei Wu
- College of Engineering, Peking University, Beijing, China; Institute of Ocean Research, Peking University, Beijing, China.
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8
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Isolation and characterization of the novel Pseudomonas stutzeri bacteriophage 8P. Arch Virol 2021; 166:601-606. [PMID: 33392816 DOI: 10.1007/s00705-020-04912-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/23/2020] [Indexed: 10/22/2022]
Abstract
Bacteriophage 8P was isolated with a Pseudomonas stutzeri strain isolated from an oil reservoir as its host bacterium. The phage genome comprises 63,753 base pairs with a G+C content of 64.35. The phage encodes 63 predicted proteins, and 27 of them were functionally assigned. No tRNA genes were found. Comparative genomics analysis showed that 8P displayed some relatedness to F116-like phages (78% identity, 20% query coverage). The genome has very low sequence similarity to the other phage genomes in the GenBank database and Viral Sequence Database. Based on whole-genome analysis and transmission electron microscopy imaging, 8P is proposed to be a member of a new species in the genus Hollowayvirus, family Podoviridae.
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9
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Chen Y, Pan J, Yun Y, Zhi B, Li G, Li M, Ma T. Halomonas plays a central role in the syntrophic community of an alkaline oil reservoir with alkali-surfactant-polymer (ASP) flooding. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 747:141333. [PMID: 32795799 DOI: 10.1016/j.scitotenv.2020.141333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
Little is known about the microbial characteristics in oil reservoirs under alkali-surfactant-polymer (ASP)-flooding. In the present study, we collected two ASP-flooding samples and two nearby water-flooding samples from the Daqing oil field and performed 16S rRNA gene sequencing and metagenomic sequencing to fill this knowledge gap. The results indicated that the highly elevated pH resulted in a simple Euryarchaeotal community and a Halomonas &Nitrincola-dominated bacterial community in the production water of the alkaline oil reservoir. In addition, we hypothesized that multiple copies of genes encoding monovalent cation/proton antiporters in Halomonas and Nitrincola, and their facultative anaerobic and movable traits, were the adaptive mechanisms responsible for their competitive growth in the alkaline oil reservoir. We also revealed a unique syntrophic community in the alkaline oil reservoir and identified the central role of Halomonas within it. The present study revealed the microbial characteristics in an alkaline oil reservoir environment formed by ASP-flooding and indicated the application potential of Halomonas in AMP-flooding and microbial enhanced oil recovery (MEOR) technology to elevate the oil recovery rate from ASP-flooded oil reservoirs.
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Affiliation(s)
- Yu Chen
- College of Life Sciences, Nankai University, Tianjin, China
| | - Jie Pan
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Yuan Yun
- College of Life Sciences, Nankai University, Tianjin, China
| | - Bo Zhi
- College of Life Sciences, Nankai University, Tianjin, China
| | - Guoqiang Li
- College of Life Sciences, Nankai University, Tianjin, China
| | - Meng Li
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, China.
| | - Ting Ma
- College of Life Sciences, Nankai University, Tianjin, China.
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10
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Lenchi N, Anzil A, Servais P, Kebbouche-Gana S, Gana ML, Llirós M. Microbacterium algeriense sp. nov., a novel actinobacterium isolated from Algerian oil production waters. Int J Syst Evol Microbiol 2020; 70:6044-6051. [PMID: 33263510 DOI: 10.1099/ijsem.0.004434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A non-motile, straight-rod-shaped, Gram-stain-positive and facultative anaerobic bacterium (i.e., strain G1T) was isolated from production waters from an Algerian oilfield. Growth was observed in the presence of 0.3-3.5 % (w/v) NaCl, at 20-50 °C and at pH 6.0-9.0. Results of phylogenetic analyses based on 16S rRNA gene sequences showed that strain G1T belonged to the genus Microbacterium. Strain G1 T was closely related to Microbacterium oxydans (DSM 20578T) and Microbacterium maritypicum (DSM 12512T) with 99.8 % sequence similarity and to Microbacterium saperdae (DSM 20169T) with 99.6 % sequence similarity. Strain G1 T contained MK9, MK10, MK11, MK12 and MK13 as respiratory quinones, and phosphatidylglycerol, diphosphatidylglycerol and glycolipid as the major polar lipids. The major cellular fatty acids were anteiso-C15:0, iso-C16:0 and anteiso-C17:0. The estimated DNA G+C content was 69.57 mol% based on its draft genome sequence. Genome annotation of strain G1T predicted the presence of 3511 genes, of which 3483 were protein-coding and 47 were tRNA genes. The DNA-DNA hybridization (DDH) and average nucleotide identity (ANI) values between strain G1T and M. oxydans (DSM 20578T) and M. maritypicum (DSM 12512T) were in both cases far below the respective species boundary thresholds (27.5 and 28.0 % for DDH; and 84.40 and 84.82% for ANI, respectively). Based on the data presented above, strain G1T was considered to represent a novel species for which the name Microbacterium algeriense is proposed with the type strain G1T (=DSM 109018T=LMG 31276T).
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Affiliation(s)
- Nesrine Lenchi
- Bioinformatics, Applied Microbiology and Biomolecules Laboratory, Faculty of Sciences, University M'Hamed Bougara of Boumerdes, Algeria.,Department of Natural and Life Sciences, Faculty of Sciences, University Algiers 1 BenYoucef Benkhedda, Algiers, Algeria
| | - Adriana Anzil
- Ecology of Aquatic Systems, Université libre de Bruxelles, Brussels, Belgium
| | - Pierre Servais
- Ecology of Aquatic Systems, Université libre de Bruxelles, Brussels, Belgium
| | | | - Mohamed Lamine Gana
- Center of Research and Development, Biocorrosion Laboratory (Sonatrach), Boumerdes, Algeria
| | - Marc Llirós
- Institut d'Investigació Biomèdica de Girona, Salt, Catalunya, Spain.,Dept Genetics and Microbiology, Universitat Autònoma de Barcelona, Bellatera, Catalunya, Spain
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11
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Sharma N, Lavania M, Kukreti V, Lal B. Instigation of indigenous thermophilic bacterial consortia for enhanced oil recovery from high temperature oil reservoirs. PLoS One 2020; 15:e0229889. [PMID: 32396555 PMCID: PMC7217464 DOI: 10.1371/journal.pone.0229889] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 02/17/2020] [Indexed: 11/19/2022] Open
Abstract
The purpose of the study involves the development of an anaerobic, thermophilic microbial consortium TERIK from the high temperature reservoir of Gujarat for enhance oil recovery. To isolate indigenous microbial consortia, anaerobic baltch media were prepared and inoculated with the formation water; incubated at 65°C for 10 days. Further, the microbial metabolites were analyzed by gas chromatography, FTIR and surface tension. The efficiency of isolated consortia towards enhancing oil recovery was analyzed through core flood assay. The novelty of studied consortia was that, it produces biomass (600 mg/l), bio-surfactant (325 mg/l), and volatile fatty acids (250 mg/l) at 65°C in the span of 10 days, that are adequate to alter the surface tension (70 to 34 mNm -1) and sweep efficiency of zones facilitating the displacement of oil. TERIK was identified as Clostridium sp. The FTIR spectra of biosurfactant indicate the presence of N-H stretch, amides and polysaccharide. A core flooding assay was designed to explore the potential of TERIK towards enhancing oil recovery. The results showed an effective reduction in permeability at residual oil saturation from 2.14 ± 0.1 to 1.39 ± 0.05 mD and 19% incremental oil recovery.
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Affiliation(s)
- Neha Sharma
- Microbial Biotechnology Division, The Energy & Resources Institute, New Delhi, India
| | - Meeta Lavania
- Microbial Biotechnology Division, The Energy & Resources Institute, New Delhi, India
| | - Vipin Kukreti
- Institute of Reservoir Studies Oil and Natural Gas Corporation Limited, Ahmedabad, Gujarat, India
| | - Banwari Lal
- Microbial Biotechnology Division, The Energy & Resources Institute, New Delhi, India
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12
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Chen P, Gao P, Chen Y, Xie J, Jin M, Ma T. Occurrence of antibiotic resistance genes in an oilfield's water re-injection systems. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110093. [PMID: 31869712 DOI: 10.1016/j.ecoenv.2019.110093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/04/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
The recent widespread increase in antibiotic resistance has become a real threat to both human and environmental ecosystem health. In oil reservoirs, an extreme environment potentially influenced by human activity such as water flooding, the distribution and abundance of antibiotic resistance genes (ARGs) remains poorly understood. Herein, we investigated the distribution of ARGs at different positions in a water-flooding oilfield in China, and found that ARGs were observed in all parts of the investigated system. The surface regions of the water re-injection system were more vulnerable to ARG pollution, and the final ARG concentration was up to 2.2 × 108 gene copies/L, and sulfonamide were the most abundant. However, ARG concentration decreased sharply in the samples from underground part of the re-injection system. The bacterial community composition was also varied with sampling position. The sample from production well, which was enriched in crude oil, contained more bacteria but the community richness was simpler. This study also indicated the wastewater-recycling process above ground, which proposed to reduce the discharge into environment directly, may pose a risk for ARGs spread.
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Affiliation(s)
- Peishan Chen
- College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Peike Gao
- College of Life Sciences, Qufu Normal University, Qufu, People's Republic of China
| | - Yu Chen
- College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Jinxia Xie
- College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Min Jin
- Department of Environment and Health, Tianjin Institute of Environmental & Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, Tianjin, People's Republic of China.
| | - Ting Ma
- College of Life Sciences, Nankai University, Tianjin, People's Republic of China.
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13
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Hussien E, Juhmani AS, AlMasri R, Al-Horani F, Al-Saghir M. Metagenomic analysis of microbial community associated with coral mucus from the Gulf of Aqaba. Heliyon 2019; 5:e02876. [PMID: 31844749 PMCID: PMC6895581 DOI: 10.1016/j.heliyon.2019.e02876] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 10/10/2019] [Accepted: 11/14/2019] [Indexed: 12/26/2022] Open
Abstract
Coral-associated microbial communities contribute to a wide variety of useful roles regarding the their host, and therefore, the arrangement of the general microbiome network can emphatically impact coral wellbeing and survival. Various pollution sources can interfere and disrupt the microbial relationship with corals. Here, we adopted the bacterial tag-encoded FLX amplicon pyrosequencing (bTEFAP®) technique to investigate the shift of microbial communities associated with the mucus of the coral Stylophora pistillata collected from five sites (Marine Science Station, Industrial Complex, Oil Terminal, Public Beach, and Phosphate Port) along the Gulf of Aqaba (Red Sea). Our results revealed a high diversity in bacterial populations associated with coral mucus. Proteobacteria were observed to be the dominating phylum among all sampling sites. The identified bacterial taxa belong to the pathogenic bacteria from the genus Vibrio was presented in varying abundances at all sampling sites. Diversity and similarity analysis of microbial communists based on rarefaction curve and UniFrac cluster respectively demonstrated that there are variances in microbial groups associated with coral mucus along sites. The pollution sources among different locations along the Gulf of Aqaba seem to affect the coral-associated holobiont leading to changes in bacterial populations due to increasing human activities.
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Affiliation(s)
- Emad Hussien
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
- Department of Food Science and Human Nutrition College of Applied and Health Sciences, A'Sharqiyah University, Ibra, Oman
| | - Abdul-Salam Juhmani
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
- Department of Environmental Sciences, Informatics and Statistic, Ca’ Foscari University of Venice, Venice, Italy
| | - Ruba AlMasri
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
| | - Fuad Al-Horani
- Department of Marine Biology, The University of Jordan, Aqaba, Jordan
| | - Mohannad Al-Saghir
- Department of Biological Sciences, Ohio University, Zanesville, OH, 43701, USA
- Corresponding author.
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14
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Gao Y, Wang G, Zhou A, Yue X, Duan Y, Kong X, Zhang X. Effect of nitrate on indole degradation characteristics and methanogenesis under mixed denitrification and methanogenesis culture. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.02.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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15
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Long-term succession in a coal seam microbiome during in situ biostimulation of coalbed-methane generation. ISME JOURNAL 2018; 13:632-650. [PMID: 30323265 PMCID: PMC6461797 DOI: 10.1038/s41396-018-0296-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 09/18/2018] [Accepted: 09/20/2018] [Indexed: 11/24/2022]
Abstract
Despite the significance of biogenic methane generation in coal beds, there has never been a systematic long-term evaluation of the ecological response to biostimulation for enhanced methanogenesis in situ. Biostimulation tests in a gas-free coal seam were analysed over 1.5 years encompassing methane production, cell abundance, planktonic and surface associated community composition and chemical parameters of the coal formation water. Evidence is presented that sulfate reducing bacteria are energy limited whilst methanogenic archaea are nutrient limited. Methane production was highest in a nutrient amended well after an oxic preincubation phase to enhance coal biofragmentation (calcium peroxide amendment). Compound-specific isotope analyses indicated the predominance of acetoclastic methanogenesis. Acetoclastic methanogenic archaea of the Methanosaeta and Methanosarcina genera increased with methane concentration. Acetate was the main precursor for methanogenesis, however more acetate was consumed than methane produced in an acetate amended well. DNA stable isotope probing showed incorporation of 13C-labelled acetate into methanogenic archaea, Geobacter species and sulfate reducing bacteria. Community characterisation of coal surfaces confirmed that methanogenic archaea make up a substantial proportion of coal associated biofilm communities. Ultimately, methane production from a gas-free subbituminous coal seam was stimulated despite high concentrations of sulfate and sulfate-reducing bacteria in the coal formation water. These findings provide a new conceptual framework for understanding the coal reservoir biosphere.
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16
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Sun JQ, Xu L, Liu XY, Zhao GF, Cai H, Nie Y, Wu XL. Functional Genetic Diversity and Culturability of Petroleum-Degrading Bacteria Isolated From Oil-Contaminated Soils. Front Microbiol 2018; 9:1332. [PMID: 29973925 PMCID: PMC6019457 DOI: 10.3389/fmicb.2018.01332] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/31/2018] [Indexed: 12/18/2022] Open
Abstract
In this study, we compared the culturability of aerobic bacteria isolated from long-term oil-contaminated soils via enrichment and direct-plating methods; bacteria were cultured at 30°C or ambient temperatures. Two soil samples were collected from two sites in the Shengli oilfield located in Dongying, China. One sample (S0) was close to the outlet of an oil-production water treatment plant, and the other sample (S1) was located 500 m downstream of the outlet. In total, 595 bacterial isolates belonging to 56 genera were isolated, distributed in Actinobacteria, Firmicutes, Bacterioidetes, and Proteobacteria. It was interesting that Actinobacteria and Firmicutes were not detected from the 16S rRNA gene clone library. The results suggested the activation of rare species during culture. Using the enrichment method, 239 isolates (31 genera) and 96 (22 genera) isolates were obtained at ambient temperatures and 30°C, respectively, from S0 soil. Using the direct-plating method, 97 isolates (15 genera) and 163 isolates (20 genera) were obtained at ambient temperatures and 30°C, respectively, from two soils. Of the 595 isolates, 244 isolates (41.7% of total isolates) could degrade n-hexadecane. A greater number of alkane-degraders was isolated at ambient temperatures using the enrichment method, suggesting that this method could significantly improve bacterial culturability. Interestingly, the proportion of alkane degrading isolates was lower in the isolates obtained using enrichment method than that obtained using direct-plating methods. Considering the greater species diversity of isolates obtained via the enrichment method, this technique could be used to increase the diversity of the microbial consortia. Furthermore, phenol hydroxylase genes (pheN), medium-chain alkane monooxygenases genes (alkB and CYP153A), and long-chain alkane monooxygenase gene (almA) were detected in 60 isolates (11 genotypes), 91 isolates (27 genotypes) and 93 isolates (24 genotypes), and 34 isolates (14 genotypes), respectively. This study could provide new insights into microbial resources from oil fields or other environments, and this information will be beneficial for bioremediation of petroleum contamination and for other industrial applications.
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Affiliation(s)
- Ji-Quan Sun
- Department of Energy & Resources Engineering, College of Engineering, Peking University, Beijing, China
| | - Lian Xu
- Department of Energy & Resources Engineering, College of Engineering, Peking University, Beijing, China
| | - Xue-Ying Liu
- Department of Energy & Resources Engineering, College of Engineering, Peking University, Beijing, China
| | - Gui-Fang Zhao
- School of Environment, Tsinghua University, Beijing, China
| | - Hua Cai
- School of Environment, Tsinghua University, Beijing, China
| | - Yong Nie
- Department of Energy & Resources Engineering, College of Engineering, Peking University, Beijing, China
| | - Xiao-Lei Wu
- Department of Energy & Resources Engineering, College of Engineering, Peking University, Beijing, China
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17
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Jung MY, Kim SJ, Kim JG, Hong H, Gwak JH, Park SJ, Kim YH, Rhee SK. Comparative genomic analysis of Geosporobacter ferrireducens and its versatility of anaerobic energy metabolism. J Microbiol 2018; 56:365-371. [DOI: 10.1007/s12275-018-7451-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/27/2018] [Accepted: 02/27/2018] [Indexed: 01/27/2023]
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18
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Effect of exogenous inoculants on enhancing oil recovery and indigenous bacterial community dynamics in long-term field pilot of low permeability reservoir. World J Microbiol Biotechnol 2018; 34:53. [DOI: 10.1007/s11274-018-2433-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/13/2018] [Indexed: 01/19/2023]
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19
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Su S, Dong H, Chai L, Zhang X, Banat IM, Wang Z, Hou D, Zhang F, She Y. Dynamics of a microbial community during an effective boost MEOR trial using high-throughput sequencing. RSC Adv 2018; 8:690-697. [PMID: 35538991 PMCID: PMC9076845 DOI: 10.1039/c7ra12245d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 12/11/2017] [Indexed: 11/21/2022] Open
Abstract
Using 454 pyrosequencing of 16S rRNA gene amplicons, microbial communities in samples of injection water and production water during a serial microbial enhanced oil recovery (MEOR) field trial in a water flooded high pour point oil reservoir were determined. There was a close microbial community compositional relationship between the injection water and the successful first round MEOR processed oil reservoir which was indicated by the result of 43 shared dominant operational taxonomic units detected in both the injection water and the production water. Alterations of microbial community after the injection of boost nutrients showed that microbes giving positive responses were mainly those belonging to the genera of Comamonas, Brevundimonas, Azospirillum, Achromobacter, Pseudomonas, and Hyphomonas, which were detected both in the injection water and in the production water and usually detected in oil reservoir environments or associated with hydrocarbon degradation. Additionally, microbes only dominant in the production waters were significantly inhibited with a sharp decline in their relative abundance. Based on these findings, a suggestion of re-optimization of the boost nutrients, targetting the microbes co-existing in the injection water and the oil reservoir and having survival ability in both surface and subsurface environments, rather than simple repeats for the subsequent in situ MEOR applications was proposed.
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Affiliation(s)
- Sanbao Su
- School of Petroleum Engineering, Yangtze University Wuhan Hubei 430010 China
| | - Hao Dong
- College of Chemistry and Environmental Engineering, Yangtze University Jingzhou Hubei 434023 China
| | - Lujun Chai
- The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, Ministry of Education, School of Energy Resources, China University of Geosciences (Beijing) Beijing 100083 China
| | - Xiaotao Zhang
- The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, Ministry of Education, School of Energy Resources, China University of Geosciences (Beijing) Beijing 100083 China
| | - Ibrahim M Banat
- Faculty of Life and Health Sciences, University of Ulster Coleraine BT52 1SA UK
| | - Zhengliang Wang
- College of Chemistry and Environmental Engineering, Yangtze University Jingzhou Hubei 434023 China
| | - Dujie Hou
- The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, Ministry of Education, School of Energy Resources, China University of Geosciences (Beijing) Beijing 100083 China
| | - Fan Zhang
- The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, Ministry of Education, School of Energy Resources, China University of Geosciences (Beijing) Beijing 100083 China
| | - Yuehui She
- College of Chemistry and Environmental Engineering, Yangtze University Jingzhou Hubei 434023 China
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20
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Li XX, Liu JF, Zhou L, Mbadinga SM, Yang SZ, Gu JD, Mu BZ. Diversity and Composition of Sulfate-Reducing Microbial Communities Based on Genomic DNA and RNA Transcription in Production Water of High Temperature and Corrosive Oil Reservoir. Front Microbiol 2017. [PMID: 28638372 PMCID: PMC5461352 DOI: 10.3389/fmicb.2017.01011] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Deep subsurface petroleum reservoir ecosystems harbor a high diversity of microorganisms, and microbial influenced corrosion is a major problem for the petroleum industry. Here, we used high-throughput sequencing to explore the microbial communities based on genomic 16S rDNA and metabolically active 16S rRNA analyses of production water samples with different extents of corrosion from a high-temperature oil reservoir. Results showed that Desulfotignum and Roseovarius were the most abundant genera in both genomic and active bacterial communities of all the samples. Both genomic and active archaeal communities were mainly composed of Archaeoglobus and Methanolobus. Within both bacteria and archaea, the active and genomic communities were compositionally distinct from one another across the different oil wells (bacteria p = 0.002; archaea p = 0.01). In addition, the sulfate-reducing microorganisms (SRMs) were specifically assessed by Sanger sequencing of functional genes aprA and dsrA encoding the enzymes adenosine-5'-phosphosulfate reductase and dissimilatory sulfite reductase, respectively. Functional gene analysis indicated that potentially active Archaeoglobus, Desulfotignum, Desulfovibrio, and Thermodesulforhabdus were frequently detected, with Archaeoglobus as the most abundant and active sulfate-reducing group. Canonical correspondence analysis revealed that the SRM communities in petroleum reservoir system were closely related to pH of the production water and sulfate concentration. This study highlights the importance of distinguishing the metabolically active microorganisms from the genomic community and extends our knowledge on the active SRM communities in corrosive petroleum reservoirs.
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Affiliation(s)
- Xiao-Xiao Li
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, East China University of Science and TechnologyShanghai, China
| | - Jin-Feng Liu
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, East China University of Science and TechnologyShanghai, China
| | - Lei Zhou
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, East China University of Science and TechnologyShanghai, China
| | - Serge M Mbadinga
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, East China University of Science and TechnologyShanghai, China.,Shanghai Collaborative Innovation Center for Biomanufacturing TechnologyShanghai, China
| | - Shi-Zhong Yang
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, East China University of Science and TechnologyShanghai, China
| | - Ji-Dong Gu
- School of Biological Sciences, The University of Hong KongHong Kong, Hong Kong
| | - Bo-Zhong Mu
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, East China University of Science and TechnologyShanghai, China.,Shanghai Collaborative Innovation Center for Biomanufacturing TechnologyShanghai, China
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21
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Corteselli EM, Aitken MD, Singleton DR. Rugosibacter aromaticivorans gen. nov., sp. nov., a bacterium within the family Rhodocyclaceae, isolated from contaminated soil, capable of degrading aromatic compounds. Int J Syst Evol Microbiol 2017; 67:311-318. [PMID: 27902243 DOI: 10.1099/ijsem.0.001622] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A bacterial strain designated Ca6T was isolated from polycyclic aromatic hydrocarbon (PAH)-contaminated soil from the site of a former manufactured gas plant in Charlotte, NC, USA, and linked phylogenetically to the family Rhodocyclaceae of the class Betaproteobacteria. Its 16S rRNA gene sequence was highly similar to globally distributed environmental sequences, including those previously designated 'Pyrene Group 1' demonstrated to grow on the PAHs phenanthrene and pyrene by stable-isotope probing. The most closely related described relative was Sulfuritalea hydrogenivorans strain sk43HT (93.6 % 16S rRNA gene sequence identity). In addition to a limited number of organic acids, Ca6T was capable of growth on the monoaromatic compounds benzene and toluene, and the azaarene carbazole, as sole sources of carbon and energy. Growth on the PAHs phenanthrene and pyrene was also confirmed. Optimal growth was observed aerobically under mesophilic temperature, neutral pH and low salinity conditions. Major fatty acids present included summed feature 3 (C16 : 1ω7c or C16 : 1ω6c) and C16 : 0. The DNA G+C content of the single chromosome was 55.14 mol% as determined by complete genome sequencing. Due to its distinct genetic and physiological properties, strain Ca6T is proposed as a member of a novel genus and species within the family Rhodocyclaceae, for which the name Rugosibacter aromaticivorans gen. nov., sp. nov. is proposed. The type strain of the species is Ca6T (=ATCC TSD-59T=DSM 103039T).
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Affiliation(s)
- Elizabeth M Corteselli
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC 27599-7431, USA
| | - Michael D Aitken
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC 27599-7431, USA
| | - David R Singleton
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC 27599-7431, USA
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22
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Arroua B, Ranchou-Peyruse A, Ranchou-Peyruse M, Magot M, Urios L, Grimaud R. Pleomorphochaeta caudata gen. nov., sp. nov., an anaerobic bacterium isolated from an offshore oil well, reclassification of Sphaerochaeta multiformis MO-SPC2T as Pleomorphochaeta multiformis MO-SPC2T comb. nov. as the type strain of this novel genus and emended description of the genus Sphaerochaeta. Int J Syst Evol Microbiol 2017; 67:417-424. [DOI: 10.1099/ijsem.0.001641] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Boussad Arroua
- CNRS/ Université de Pau & des Pays de l’Adour, IPREM UMR 5254, 64000, Pau, France
| | | | | | - Michel Magot
- CNRS/ Université de Pau & des Pays de l’Adour, IPREM UMR 5254, 64000, Pau, France
| | - Laurent Urios
- CNRS/ Université de Pau & des Pays de l’Adour, IPREM UMR 5254, 64000, Pau, France
| | - Régis Grimaud
- CNRS/ Université de Pau & des Pays de l’Adour, IPREM UMR 5254, 64000, Pau, France
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23
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Sierra-Garcia IN, Dellagnezze BM, Santos VP, Chaves B MR, Capilla R, Santos Neto EV, Gray N, Oliveira VM. Microbial diversity in degraded and non-degraded petroleum samples and comparison across oil reservoirs at local and global scales. Extremophiles 2016; 21:211-229. [PMID: 27915388 DOI: 10.1007/s00792-016-0897-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 11/18/2016] [Indexed: 11/30/2022]
Abstract
Microorganisms have shown their ability to colonize extreme environments including deep subsurface petroleum reservoirs. Physicochemical parameters may vary greatly among petroleum reservoirs worldwide and so do the microbial communities inhabiting these different environments. The present work aimed at the characterization of the microbiota in biodegraded and non-degraded petroleum samples from three Brazilian reservoirs and the comparison of microbial community diversity across oil reservoirs at local and global scales using 16S rRNA clone libraries. The analysis of 620 16S rRNA bacterial and archaeal sequences obtained from Brazilian oil samples revealed 42 bacterial OTUs and 21 archaeal OTUs. The bacterial community from the degraded oil was more diverse than the non-degraded samples. Non-degraded oil samples were overwhelmingly dominated by gammaproteobacterial sequences with a predominance of the genera Marinobacter and Marinobacterium. Comparisons of microbial diversity among oil reservoirs worldwide suggested an apparent correlation of prokaryotic communities with reservoir temperature and depth and no influence of geographic distance among reservoirs. The detailed analysis of the phylogenetic diversity across reservoirs allowed us to define a core microbiome encompassing three bacterial classes (Gammaproteobacteria, Clostridia, and Bacteroidia) and one archaeal class (Methanomicrobia) ubiquitous in petroleum reservoirs and presumably owning the abilities to sustain life in these environments.
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Affiliation(s)
- Isabel Natalia Sierra-Garcia
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, UNICAMP, Campinas, CEP 13148-218, Brazil. .,School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
| | - Bruna M Dellagnezze
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, UNICAMP, Campinas, CEP 13148-218, Brazil
| | - Viviane P Santos
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, UNICAMP, Campinas, CEP 13148-218, Brazil
| | - Michel R Chaves B
- Institute of Chemistry, University of Campinas, Campinas, CEP13083-970, Brazil
| | - Ramsés Capilla
- PETROBRAS/R&D Center, Rio de Janeiro, CEP 21949-900, Brazil
| | | | - Neil Gray
- School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Valeria M Oliveira
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, UNICAMP, Campinas, CEP 13148-218, Brazil
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24
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Nie Y, Zhao JY, Tang YQ, Guo P, Yang Y, Wu XL, Zhao F. Species Divergence vs. Functional Convergence Characterizes Crude Oil Microbial Community Assembly. Front Microbiol 2016; 7:1254. [PMID: 27570522 PMCID: PMC4981601 DOI: 10.3389/fmicb.2016.01254] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 07/28/2016] [Indexed: 12/17/2022] Open
Abstract
Oil reservoirs exhibit extreme environmental conditions such as high salinity and high temperature. Insights into microbial community assemblages in oil reservoirs and their functional potentials are important for understanding biogeochemical cycles in the subterranean biosphere. In this study, we performed shotgun metagenomic sequencing of crude oil samples from two geographically distant oil reservoirs in China, and compared them with all the 948 available environmental metagenomes deposited in IMG database (until October 2013). Although the dominant bacteria and the proportion of hydrogenotrophic and acetoclastic methanogens were different among oil metagenomes, compared with the metagenomes from other environments, all the oil metagenomes contained higher abundances of genes involved in methanogenic hydrocarbon degradation and stress response systems. In addition, a "shape-sorting" manner was proposed for the assembly of microbial communities in oil reservoirs, with the oil reservoir acting as a function sorter to select microbes with special functions from its endemic pool of microorganisms. At the functional level, we found that environmental metagenomes were generally clustered according to their isolation environments but not their geographical locations, suggesting selective processes to be involved in the assembly of microbial communities based on functional gene composition.
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Affiliation(s)
- Yong Nie
- College of Engineering, Peking University, Beijing China
| | - Jie-Yu Zhao
- College of Engineering, Peking University, Beijing China
| | - Yue-Qin Tang
- College of Architecture and Environment, Sichuan University, Chengdu China
| | - Peng Guo
- College of Engineering, Peking University, Beijing China
| | - Yunfeng Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing China
| | - Xiao-Lei Wu
- College of Engineering, Peking University, BeijingChina; Institute of Engineering (Baotou), College of Engineering, Peking University, BaotouChina
| | - Fangqing Zhao
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing China
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25
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Ross DE, Marshall CW, May HD, Norman RS. Comparative Genomic Analysis of Sulfurospirillum cavolei MES Reconstructed from the Metagenome of an Electrosynthetic Microbiome. PLoS One 2016; 11:e0151214. [PMID: 26983005 PMCID: PMC4794192 DOI: 10.1371/journal.pone.0151214] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 02/23/2016] [Indexed: 11/19/2022] Open
Abstract
Sulfurospirillum spp. play an important role in sulfur and nitrogen cycling, and contain metabolic versatility that enables reduction of a wide range of electron acceptors, including thiosulfate, tetrathionate, polysulfide, nitrate, and nitrite. Here we describe the assembly of a Sulfurospirillum genome obtained from the metagenome of an electrosynthetic microbiome. The ubiquity and persistence of this organism in microbial electrosynthesis systems suggest it plays an important role in reactor stability and performance. Understanding why this organism is present and elucidating its genetic repertoire provide a genomic and ecological foundation for future studies where Sulfurospirillum are found, especially in electrode-associated communities. Metabolic comparisons and in-depth analysis of unique genes revealed potential ecological niche-specific capabilities within the Sulfurospirillum genus. The functional similarities common to all genomes, i.e., core genome, and unique gene clusters found only in a single genome were identified. Based upon 16S rRNA gene phylogenetic analysis and average nucleotide identity, the Sulfurospirillum draft genome was found to be most closely related to Sulfurospirillum cavolei. Characterization of the draft genome described herein provides pathway-specific details of the metabolic significance of the newly described Sulfurospirillum cavolei MES and, importantly, yields insight to the ecology of the genus as a whole. Comparison of eleven sequenced Sulfurospirillum genomes revealed a total of 6246 gene clusters in the pan-genome. Of the total gene clusters, 18.5% were shared among all eleven genomes and 50% were unique to a single genome. While most Sulfurospirillum spp. reduce nitrate to ammonium, five of the eleven Sulfurospirillum strains encode for a nitrous oxide reductase (nos) cluster with an atypical nitrous-oxide reductase, suggesting a utility for this genus in reduction of the nitrous oxide, and as a potential sink for this potent greenhouse gas.
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Affiliation(s)
- Daniel E. Ross
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, United States of America
| | - Christopher W. Marshall
- Department of Microbiology & Immunology, Marine Biomedicine & Environmental Science Center, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Harold D. May
- Department of Microbiology & Immunology, Marine Biomedicine & Environmental Science Center, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - R. Sean Norman
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, United States of America
- * E-mail:
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26
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Spatial isolation and environmental factors drive distinct bacterial and archaeal communities in different types of petroleum reservoirs in China. Sci Rep 2016; 6:20174. [PMID: 26838035 PMCID: PMC4738313 DOI: 10.1038/srep20174] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 12/22/2015] [Indexed: 02/01/2023] Open
Abstract
To investigate the spatial distribution of microbial communities and their drivers in petroleum reservoir environments, we performed pyrosequencing of microbial partial 16S rRNA, derived from 20 geographically separated water-flooding reservoirs, and two reservoirs that had not been flooded, in China. The results indicated that distinct underground microbial communities inhabited the different reservoirs. Compared with the bacteria, archaeal alpha-diversity was not strongly correlated with the environmental variables. The variation of the bacterial and archaeal community compositions was affected synthetically, by the mining patterns, spatial isolation, reservoir temperature, salinity and pH of the formation brine. The environmental factors explained 64.22% and 78.26% of the total variance for the bacterial and archaeal communities, respectively. Despite the diverse community compositions, shared populations (48 bacterial and 18 archaeal genera) were found and were dominant in most of the oilfields. Potential indigenous microorganisms, including Carboxydibrachium, Thermosinus, and Neptunomonas, were only detected in a reservoir that had not been flooded with water. This study indicates that: 1) the environmental variation drives distinct microbial communities in different reservoirs; 2) compared with the archaea, the bacterial communities were highly heterogeneous within and among the reservoirs; and 3) despite the community variation, some microorganisms are dominant in multiple petroleum reservoirs.
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27
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Troshina O, Oshurkova V, Suzina N, Machulin A, Ariskina E, Vinokurova N, Kopitsyn D, Novikov A, Shcherbakova V. Sphaerochaeta associata sp. nov., a spherical spirochaete isolated from cultures of Methanosarcina mazei JL01. Int J Syst Evol Microbiol 2015; 65:4315-4322. [DOI: 10.1099/ijsem.0.000575] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An anaerobic, saccharolytic bacterial strain designated GLS2T was isolated from aggregates of the psychrotolerant archaeon Methanosarcina mazei strain JL01 isolated from arctic permafrost. Bacterial cells were non-motile, spherical, ovoid and annular with diameter 0.2–4 μm. They were chemoorganoheterotrophs using a wide range of mono-, di- and trisaccharides as carbon and energy sources. The novel isolate required yeast extract and vitamins for growth. The bacteria exhibited resistance to a number of β-lactam antibiotics, rifampicin, streptomycin and vancomycin. Optimum growth was observed between 30 and 34 °C, at pH 6.8–7.5 and with 1–2 g NaCl l− 1. Isolate GLS2T was a strict anaerobe but it tolerated oxygen exposure. On the basis of 16S rRNA gene sequence similarity, strain GLS2T was shown to belong to the genus Sphaerochaeta within the family Spirochaetaceae. Its closest relatives were Sphaerochaeta globosa BuddyT (99.3 % 16S rRNA gene sequence similarity) and Sphaerochaeta pleomorpha GrapesT (95.4 % similarity). The G+C content of DNA was 47.2 mol%. The level of DNA–DNA hybridization between strains GLS2T and BuddyT was 34.7 ± 8.8 %. Major polar lipids were phosphoglycolipids, phospholipids and glycolipids; major fatty acids were C14 : 0, C16 : 0, C16 : 0 3-OH, C16 : 0 dimethyl acetal (DMA), C16 : 1n8 and C16 : 1 DMA; respiratory quinones were not detected. The results of DNA–DNA hybridization, physiological and biochemical tests demonstrated genotypic and phenotypic differentiation of strain GLS2T from the four species of the genus Sphaerochaeta with validly published names that allowed its separation into a new lineage at the species level. Strain GLS2T therefore represents a novel species, for which the name Sphaerochaeta associata sp. nov. is proposed, with the type strain GLS2T ( = DSM 26261T = VKM B-2742T).
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Affiliation(s)
- Olga Troshina
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospect Nauki 5, Pushchino, Moscow region 142290, Russia
| | - Viktoria Oshurkova
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospect Nauki 5, Pushchino, Moscow region 142290, Russia
| | - Natalia Suzina
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospect Nauki 5, Pushchino, Moscow region 142290, Russia
| | - Andrei Machulin
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospect Nauki 5, Pushchino, Moscow region 142290, Russia
| | - Elena Ariskina
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospect Nauki 5, Pushchino, Moscow region 142290, Russia
| | - Natalia Vinokurova
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospect Nauki 5, Pushchino, Moscow region 142290, Russia
| | - Dmitry Kopitsyn
- Gubkin Russian State University of Oil and Gas, Leninskiy Prospect 65-1, 119991 Moscow, Russia
| | - Andrei Novikov
- Gubkin Russian State University of Oil and Gas, Leninskiy Prospect 65-1, 119991 Moscow, Russia
| | - Viktoria Shcherbakova
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospect Nauki 5, Pushchino, Moscow region 142290, Russia
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28
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Cai M, Nie Y, Chi CQ, Tang YQ, Li Y, Wang XB, Liu ZS, Yang Y, Zhou J, Wu XL. Crude oil as a microbial seed bank with unexpected functional potentials. Sci Rep 2015; 5:16057. [PMID: 26525361 PMCID: PMC4630613 DOI: 10.1038/srep16057] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 10/01/2015] [Indexed: 01/17/2023] Open
Abstract
It was widely believed that oil is a harsh habitat for microbes because of its high toxicity and hydrophobicity. However, accumulating evidence has revealed the presence of live microbes in crude oil. Therefore, it’s of value to conduct an in-depth investigation on microbial communities in crude oil. To this end, microorganisms in oil and water phases were collected from four oil-well production mixtures in Qinghai Oilfield, China, and analyzed for their taxonomic and functional compositions via pyrosequencing and GeoChip, respectively. Hierarchical clustering of 16S rRNA gene sequences and functional genes clearly separated crude oil and water phases, suggestive of distinct taxonomic and functional gene compositions between crude oil and water phases. Unexpectedly, Pseudomonas dominated oil phase where diverse functional gene groups were identified, which significantly differed from those in the corresponding water phases. Meanwhile, most functional genes were significantly more abundant in oil phase, which was consistent with their important roles in facilitating survival of their host organisms in crude oil. These findings provide strong evidence that crude oil could be a “seed bank” of functional microorganisms with rich functional potentials. This offers novel insights for industrial applications of microbial-enhanced oil recovery and bioremediation of petroleum-polluted environments.
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Affiliation(s)
- Man Cai
- Peking University, College of Engineering, Beijing, 100871, China
| | - Yong Nie
- Peking University, College of Engineering, Beijing, 100871, China
| | - Chang-Qiao Chi
- Peking University, College of Engineering, Beijing, 100871, China
| | - Yue-Qin Tang
- Sichuan University, College of Architecture and Environment, Chengdu, 610065, China
| | - Yan Li
- Peking University, College of Engineering, Beijing, 100871, China
| | - Xing-Biao Wang
- Peking University, College of Engineering, Beijing, 100871, China
| | - Ze-Shen Liu
- Peking University, College of Engineering, Beijing, 100871, China
| | - Yunfeng Yang
- Tsinghua University, School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, China
| | - Jizhong Zhou
- Tsinghua University, School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, China
| | - Xiao-Lei Wu
- Peking University, College of Engineering, Beijing, 100871, China
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29
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You J, Wu G, Ren F, Chang Q, Yu B, Xue Y, Mu B. Microbial community dynamics in Baolige oilfield during MEOR treatment, revealed by Illumina MiSeq sequencing. Appl Microbiol Biotechnol 2015; 100:1469-1478. [PMID: 26496917 DOI: 10.1007/s00253-015-7073-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/03/2015] [Accepted: 10/07/2015] [Indexed: 10/22/2022]
Abstract
This study was carried out to understand microbial diversity and function in the microbial enhanced oil recovery (MEOR) process and to assess the impact of MEOR treatment on the microbial community in an oil reservoir. The Illumina MiSeq-based method was used to investigate the structure and dynamics of the microbial community in a MEOR-treated block of the Baolige oilfield, China. The results showed that microbial diversity was high and that 23 phyla occurred in the analyzed samples. Proteobacteria, Firmicutes, Bacteroidetes, Thermotogae, and Euryarchaeota were present in relatively high abundance in all analyzed samples. Injection of bacteria and nutrients resulted in interesting changes in the composition of the microbial community. During MEOR treatment, the community was dominated by the known hydrocarbon-utilizing genera Pseudomonas and Acinetobacter. After the treatment, the two genera decreased in abundance over time while Methanobacteriaceae, as well as known syntrophic genera such as Syntrophomonas, Pelotomaculum, Desulfotomaculum, and Thermacetogenium gradually increased. The change in dominant microbial populations indicated the presence of a succession of microbial communities over time, and the hydrocarbon degradation and syntrophic oxidation of acetate and propionate to methane in the MEOR-treated oilfield. This work contributes to a better understanding of microbial processes in oil reservoirs and helps to optimize MEOR technology.
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Affiliation(s)
- Jing You
- Petroleum Production Engineering Institute of Huabei Oilfield Ltd, Renqiu, 062552, China.,School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Gang Wu
- Petroleum Production Engineering Institute of Huabei Oilfield Ltd, Renqiu, 062552, China
| | - Fuping Ren
- Petroleum Production Engineering Institute of Huabei Oilfield Ltd, Renqiu, 062552, China
| | - Qi Chang
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Bo Yu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Yanfen Xue
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Bozhong Mu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China.
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30
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Ren H, Xiong S, Gao G, Song Y, Cao G, Zhao L, Zhang X. Bacteria in the injection water differently impacts the bacterial communities of production wells in high-temperature petroleum reservoirs. Front Microbiol 2015; 6:505. [PMID: 26052321 PMCID: PMC4439544 DOI: 10.3389/fmicb.2015.00505] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 05/07/2015] [Indexed: 11/14/2022] Open
Abstract
Water flooding is widely used for oil recovery. However, how the introduction of bacteria via water flooding affects the subsurface ecosystem remains unknown. In the present study, the distinct bacterial communities of an injection well and six adjacent production wells were revealed using denaturing gradient gel electrophoresis (DGGE) and pyrosequencing. All sequences of the variable region 3 of the 16S rRNA gene retrieved from pyrosequencing were divided into 543 operational taxonomic units (OTUs) based on 97% similarity. Approximately 13.5% of the total sequences could not be assigned to any recognized phylum. The Unifrac distance analysis showed significant differences in the bacterial community structures between the production well and injection water samples. However, highly similar bacterial structures were shown for samples obtained from the same oil-bearing strata. More than 69% of the OTUs detected in the injection water sample were absent or detected in low abundance in the production wells. However, the abundance of two OTUs reached as high as 17.5 and 26.9% in two samples of production water, although the OTUs greatly varied among all samples. Combined with the differentiated water flow rate measured through ion tracing, we speculated that the transportation of injected bacteria was impacted through the varied permeability from the injection well to each of the production wells. Whether the injected bacteria predominate the production well bacterial community might depend both on the permeability of the strata and the reservoir conditions.
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Affiliation(s)
- Hongyan Ren
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Science and Biotechnology, Shanghai Jiao Tong University Shanghai, China
| | - Shunzi Xiong
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Science and Biotechnology, Shanghai Jiao Tong University Shanghai, China
| | - Guangjun Gao
- Institute of Petroleum Engineering and Technology, Shengli Oil Field Ltd. Sinopec, Dongying, China
| | - Yongting Song
- Institute of Petroleum Engineering and Technology, Shengli Oil Field Ltd. Sinopec, Dongying, China
| | - Gongze Cao
- Institute of Petroleum Engineering and Technology, Shengli Oil Field Ltd. Sinopec, Dongying, China
| | - Liping Zhao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Science and Biotechnology, Shanghai Jiao Tong University Shanghai, China
| | - Xiaojun Zhang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Science and Biotechnology, Shanghai Jiao Tong University Shanghai, China
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31
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Kuroda K, Hatamoto M, Nakahara N, Abe K, Takahashi M, Araki N, Yamaguchi T. Community composition of known and uncultured archaeal lineages in anaerobic or anoxic wastewater treatment sludge. MICROBIAL ECOLOGY 2015; 69:586-596. [PMID: 25373332 DOI: 10.1007/s00248-014-0525-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 10/21/2014] [Indexed: 06/04/2023]
Abstract
Microbial systems are widely used to treat different types of wastewater from domestic, agricultural, and industrial sources. Community composition is an important factor in determining the successful performance of microbial treatment systems; however, a variety of uncultured and unknown lineages exist in sludge that requires identification and characterization. The present study examined the archaeal community composition in methanogenic, denitrifying, and nitrogen-/phosphate-removing wastewater treatment sludge by Archaea-specific 16S rRNA gene sequencing analysis using Illumina sequencing technology. Phylotypes belonging to Euryarchaeota, including methanogens, were most abundant in all samples except for nitrogen-/phosphate-removing wastewater treatment sludge. High levels of Deep Sea Hydrothermal Vent Group 6 (DHVEG-6), WSA2, Terrestrial Miscellaneous Euryarchaeotal Group, and Miscellaneous Crenarchaeotic Group were also detected. Interestingly, DHVEG-6 was dominant in nitrogen-/phosphate-removing wastewater treatment sludge, indicating that unclear lineages of Archaea still exist in the anaerobic wastewater treatment sludges. These results reveal a previously unknown diversity of Archaea in sludge that can potentially be exploited for the development of more efficient wastewater treatment strategies.
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Affiliation(s)
- Kyohei Kuroda
- Department of Environmental Systems Engineering, Nagaoka University of Technology, 1603-1, Kami-tomioka, Nagaoka, Niigata, 940-2188, Japan,
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32
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Coman C, Chiriac CM, Robeson MS, Ionescu C, Dragos N, Barbu-Tudoran L, Andrei AŞ, Banciu HL, Sicora C, Podar M. Structure, mineralogy, and microbial diversity of geothermal spring microbialites associated with a deep oil drilling in Romania. Front Microbiol 2015; 6:253. [PMID: 25870594 PMCID: PMC4378309 DOI: 10.3389/fmicb.2015.00253] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 03/14/2015] [Indexed: 02/01/2023] Open
Abstract
Modern mineral deposits play an important role in evolutionary studies by providing clues to the formation of ancient lithified microbial communities. Here we report the presence of microbialite-forming microbial mats in different microenvironments at 32°C, 49°C, and 65°C around the geothermal spring from an abandoned oil drill in Ciocaia, Romania. The mineralogy and the macro- and microstructure of the microbialites were investigated, together with their microbial diversity based on a 16S rRNA gene amplicon sequencing approach. The calcium carbonate is deposited mainly in the form of calcite. At 32°C and 49°C, the microbialites show a laminated structure with visible microbial mat-carbonate crystal interactions. At 65°C, the mineral deposit is clotted, without obvious organic residues. Partial 16S rRNA gene amplicon sequencing showed that the relative abundance of the phylum Archaea was low at 32°C (<0.5%) but increased significantly at 65°C (36%). The bacterial diversity was either similar to other microbialites described in literature (the 32°C sample) or displayed a specific combination of phyla and classes (the 49°C and 65°C samples). Bacterial taxa were distributed among 39 phyla, out of which 14 had inferred abundances >1%. The dominant bacterial groups at 32°C were Cyanobacteria, Gammaproteobacteria, Firmicutes, Bacteroidetes, Chloroflexi, Thermi, Actinobacteria, Planctomycetes, and Defferibacteres. At 49°C, there was a striking dominance of the Gammaproteobacteria, followed by Firmicutes, Bacteroidetes, and Armantimonadetes. The 65°C sample was dominated by Betaproteobacteria, Firmicutes, [OP1], Defferibacteres, Thermi, Thermotogae, [EM3], and Nitrospirae. Several groups from Proteobacteria and Firmicutes, together with Halobacteria and Melainabacteria were described for the first time in calcium carbonate deposits. Overall, the spring from Ciocaia emerges as a valuable site to probe microbes-minerals interrelationships along thermal and geochemical gradients.
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Affiliation(s)
- Cristian Coman
- Taxonomy and Ecology, Algology, National Institute of Research and Development for Biological Sciences, Institute of Biological Research Cluj-Napoca, Romania ; Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Romania
| | - Cecilia M Chiriac
- Taxonomy and Ecology, Algology, National Institute of Research and Development for Biological Sciences, Institute of Biological Research Cluj-Napoca, Romania ; Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Romania
| | - Michael S Robeson
- Biosciences Division, Oak Ridge National Laboratory Oak Ridge, TN, USA ; Fish, Wildlife, and Conservation Biology, Colorado State University Fort Collins, CO, USA
| | - Corina Ionescu
- Geology Department, Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Romania ; Kazan (Volga Region) Federal University Tatarstan, Russia
| | - Nicolae Dragos
- Taxonomy and Ecology, Algology, National Institute of Research and Development for Biological Sciences, Institute of Biological Research Cluj-Napoca, Romania ; Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Electron Microscopy Center, Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Romania
| | - Adrian-Ştefan Andrei
- Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Romania ; Molecular Biology Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Cluj-Napoca, Romania
| | - Horia L Banciu
- Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Romania ; Molecular Biology Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Cluj-Napoca, Romania
| | | | - Mircea Podar
- Biosciences Division, Oak Ridge National Laboratory Oak Ridge, TN, USA
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33
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Gründger F, Jiménez N, Thielemann T, Straaten N, Lüders T, Richnow HH, Krüger M. Microbial methane formation in deep aquifers of a coal-bearing sedimentary basin, Germany. Front Microbiol 2015; 6:200. [PMID: 25852663 PMCID: PMC4367440 DOI: 10.3389/fmicb.2015.00200] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/24/2015] [Indexed: 02/01/2023] Open
Abstract
Coal-bearing sediments are major reservoirs of organic matter potentially available for methanogenic subsurface microbial communities. In this study the specific microbial community inside lignite-bearing sedimentary basin in Germany and its contribution to methanogenic hydrocarbon degradation processes was investigated. The stable isotope signature of methane measured in groundwater and coal-rich sediment samples indicated methanogenic activity. Analysis of 16S rRNA gene sequences showed the presence of methanogenic Archaea, predominantly belonging to the orders Methanosarcinales and Methanomicrobiales, capable of acetoclastic or hydrogenotrophic methanogenesis. Furthermore, we identified fermenting, sulfate-, nitrate-, and metal-reducing, or acetogenic Bacteria clustering within the phyla Proteobacteria, complemented by members of the classes Actinobacteria, and Clostridia. The indigenous microbial communities found in the groundwater as well as in the coal-rich sediments are able to degrade coal-derived organic components and to produce methane as the final product. Lignite-bearing sediments may be an important nutrient and energy source influencing larger compartments via groundwater transport.
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Affiliation(s)
- Friederike Gründger
- Resource Geochemistry, Geomicrobiology, Federal Institute for Geosciences and Natural Resources, Hannover Germany
| | - Núria Jiménez
- Resource Geochemistry, Geomicrobiology, Federal Institute for Geosciences and Natural Resources, Hannover Germany
| | - Thomas Thielemann
- Federal Institute for Geosciences and Natural Resources, Hannover Germany
| | - Nontje Straaten
- Resource Geochemistry, Geomicrobiology, Federal Institute for Geosciences and Natural Resources, Hannover Germany
| | - Tillmann Lüders
- Institute of Groundwater Ecology, Helmholtz Center for Environmental Health, Neuherberg Germany
| | - Hans-Hermann Richnow
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research, Leipzig Germany
| | - Martin Krüger
- Resource Geochemistry, Geomicrobiology, Federal Institute for Geosciences and Natural Resources, Hannover Germany
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34
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Geng S, Pan XC, Mei R, Wang YN, Liu XY, Wang XB, Tang YQ, Wu XL. Glycocaulis
alkaliphilus sp. nov., a dimorphic prosthecate bacterium isolated from crude oil. Int J Syst Evol Microbiol 2015; 65:838-844. [DOI: 10.1099/ijs.0.000023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A bacterial strain designated 6B-8T was isolated from crude oil from Daqing oilfield, China. Cells of strain 6B-8T were Gram-negative, aerobic, dimorphic and reproduced by means of binary fission. Strain 6B-8T could grow at 20–37 °C, pH 8–10 and 1–5 % (w/v) NaCl. Its genomic DNA G+C content was 62.0 mol%. The predominant cellular fatty acids were C18 : 1ω7c, C17 : 0, C18 : 0 and 11-methyl C18 : 1ω7c and the main hydroxy fatty acids were C12 : 0 3-OH and C12 : 1 3-OH when grown on marine agar 2216. The major quinone was Q-10 and the major polar lipids were three unidentified glycolipids. Phylogenetic analysis revealed that strain 6B-8T was a member of the family
Hyphomonadaceae
, sharing 99.6 and 99.4 % 16S rRNA gene sequence similarity with
Glycocaulis abyssi
LMG 27140T and
Glycocaulis albus
SLG210-30A1T, respectively, and less than 94.4 % similarity with the type strains of other members of the family
Hyphomonadaceae
. However, the DNA–DNA relatedness between strain 6B-8T and related strains
G. abyssi
LMG 27140T and
G. albus
SLG210-30A1T was 36±5 and 42±5 %, respectively. In addition, several phenotypic and genotypic features allowed differentiation of strain 6B-8T from
G. abyssi
LMG 27140T and
G. albus
SLG210-30A1T. Therefore, strain 6B-8T represents a novel species of genus
Glycocaulis
, for which the name Glycocaulis alkaliphilus sp. nov. is proposed. The type strain is 6B-8T ( = CGMCC 1.12428T = LMG 27410T).
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Affiliation(s)
- Shuang Geng
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Xin-Chi Pan
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Ran Mei
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Ya-Nan Wang
- Institute of Biology, Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Xue-Ying Liu
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Xing-Biao Wang
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Yue-Qin Tang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China
| | - Xiao-Lei Wu
- Institute of Engineering (Baotou), College of Engineering, Peking University, Baotou 014030, PR China
- College of Engineering, Peking University, Beijing 100871, PR China
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35
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Luo YJ, Xie BS, Lv XL, Cai M, Wang YN, Cui HL, Cai H, Wu XL. Marinobacter shengliensis sp. nov., a moderately halophilic bacterium isolated from oil-contaminated saline soil. Antonie van Leeuwenhoek 2015; 107:1085-94. [PMID: 25652339 DOI: 10.1007/s10482-015-0401-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 01/29/2015] [Indexed: 11/29/2022]
Abstract
Two moderately halophilic strains, designated SL013A34A2(T) and SL013A24A, were isolated from oil-contaminated saline soil from Shengli Oilfield, eastern China. Cells were found to be Gram-staining negative, aerobic, rod-shaped with a single polar flagellum. The isolates were found to grow at 10-40 °C (optimum 35 °C), pH 6.0-9.0 (optimum pH 8.0), and NaCl concentrations of 0.5-18.0 % (w/v) (optimum 3.0-6.0 NaCl). The 16S rRNA gene sequence analysis indicated that the isolates belong to the genus Marinobacter. Strain SL013A34A2(T) shares the highest 16S rRNA gene sequence similarities with strain SL013A24A (99.3 %), followed by M. hydrocarbonoclasticus CGMCC 1.7683(T) (97.8 %), M. vinifirmus CGMCC 1.7265(T) (97.8 %), and M. excellens KMM 3809(T) (97.4 %), respectively, but low similarities (93.8-96.4 %) with type strains of the other numbers of genus Marinobacter. DNA-DNA relatedness values of strain SL013A34A2(T) with strains SL013A24A, M. hydrocarbonoclasticus CGMCC 1.7683(T), M. vinifirmus CGMCC 1.7265(T) and M. excellens KMM 3809(T) were 88.7, 29.2, 33.4 and 29.4 %, respectively. The major fatty acids of strain SL013A34A2(T) were identified as C18:1 ω9c, C16:0, C12:03-OH, C12:0, C16:1 ω9c and 10-methyl C18:0. The major respiratory quinone of strain SL013A34A2(T) was found to be ubiquinone-9, and its predominant polar lipids were identified as diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and unidentified glycolipid. The genomic DNA G + C content was found to be 56.1 mol %. Based on the phenotypic, genetic and chemotaxonomic characteristics, these two isolates are representatives of a novel species of the genus Marinobacter, for which the name Marinobacter shengliensis sp. nov. is proposed. The type strain is SL013A34A2(T)(=LMG 27740(T) = CGMCC 1.12758(T)).
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Affiliation(s)
- Yi-Jing Luo
- College of Engineering, Peking University, Beijing, 100871, People's Republic of China
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36
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Gao P, Tian H, Li G, Sun H, Ma T. Microbial diversity and abundance in the Xinjiang Luliang long-term water-flooding petroleum reservoir. Microbiologyopen 2015; 4:332-342. [PMID: 25641701 PMCID: PMC4398513 DOI: 10.1002/mbo3.241] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 01/07/2015] [Accepted: 01/10/2015] [Indexed: 11/08/2022] Open
Abstract
Microbial populations associated with microbial enhanced oil recovery (MEOR) and their abundance in the Xinjiang Luliang water-flooding petroleum reservoir were investigated using 16S rRNA, nitrate reductases, dissimilatory sulfate reductase, and methyl coenzyme-M reductase-encoded genes to provide ecological information for the potential application of MEOR. 16S rRNA gene miseq sequencing revealed that this reservoir harbored large amounts of taxa, including 155 bacterial and 7 archeal genera. Among them, Arcobacter, Halomonas, Marinobacterium, Marinobacter, Sphingomonas, Rhodococcus, Pseudomonas, Dietzia, Ochrobactrum, Hyphomonas, Acinetobacter, and Shewanella were dominant, and have the potential to grow using hydrocarbons as carbon sources. Metabolic gene clone libraries indicated that the nitrate-reducing bacteria (NRB) mainly belonged to Pseudomonas, Azospirillum, Bradyrhizobium, Thauera, Magnetospirillum, Sinorhizobium, Azoarcus, and Rhodobacter; the sulfate-reducing bacteria (SRB) were Desulfarculus, Desulfomonile, Desulfosarcina, Desulfotignum, Desulfacinum, Desulfatibacillum, Desulfatibacillum, Desulfomicrobium, and Desulfovibrio; while the methanogens were archaea and belonged to Methanomethylovorans, Methanosaeta, Methanococcus, Methanolobus, and Methanobacterium. Real-time quantitative PCR analysis indicated that the number of bacterial 16S rRNA reached 106 copies/mL, while the metabolic genes of NRB, SRB, and methanogens reached 104 copies/mL. These results show that the Luliang reservoir has abundant microbial populations associated with oil recovery, suggesting that the reservoir has potential for MEOR.
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Affiliation(s)
- Peike Gao
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Tianjin, 300071, China.,College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Huimei Tian
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Tianjin, 300071, China.,College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Guoqiang Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Tianjin, 300071, China.,College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Hongwen Sun
- College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Ting Ma
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Tianjin, 300071, China.,College of Life Sciences, Nankai University, Tianjin, 300071, China
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37
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Draft Genome Sequence of Sulfurospirillum sp. Strain MES, Reconstructed from the Metagenome of a Microbial Electrosynthesis System. GENOME ANNOUNCEMENTS 2015; 3:3/1/e01336-14. [PMID: 25593246 PMCID: PMC4299888 DOI: 10.1128/genomea.01336-14] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A draft genome of Sulfurospirillum sp. strain MES was isolated through taxonomic binning of a metagenome sequenced from a microbial electrosynthesis system (MES) actively producing acetate and hydrogen. The genome contains the nosZDFLY genes, which are involved in nitrous oxide reduction, suggesting the potential role of this strain in denitrification.
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38
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Liu R, Li K, Zhang H, Zhu J, Joshi D. Spatial distribution of microbial communities associated with dune landform in the Gurbantunggut Desert, China. J Microbiol 2014; 52:898-907. [PMID: 25359267 DOI: 10.1007/s12275-014-4075-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/14/2014] [Accepted: 05/07/2014] [Indexed: 02/01/2023]
Abstract
The microbial community compositions and potential ammonia oxidation in the topsoil at different positions of sand dune (stoss slope, crest, lee slope, and interdune) from the Gurbantunggut Desert, the largest semi-fixed desert in China, were investigated using several molecular methods. Actinobacteria and Proteobacteria (especially Alphaproteobacteria) were commonly the dominant taxa across all soil samples. Bacterial communities were similar in soils collected from the stoss slopes and interdunes (HC-BSCs, biological soil crusts with a high abundance of cyanobacteria), containing more abundant cyanobacterial populations (16.9-24.5%) than those (0.2-0.7% of Cyanobacteria) in the crests and lee slopes (LC-BSCs, biological soil crusts with a low abundance of cyanobacteria). The Cyanobacteria were mainly composed of Microcoleus spp., and quantitative PCR analysis revealed that 16S rRNA gene copy numbers of Cyanobacteria (especially genus Microcoleus) were at least two orders of magnitude higher in HC-BSCs than in LC-BSCs. Heterotrophic Geodermatophilus spp. frequently occurred in HC-BSCs (2.5-8.0%), whereas genera Arthrobacter, Bacillus, and Segetibacter were significantly abundant in LC-BSC communities. By comparison, the desert archaeal communities were less complex, and were dominated by Nitrososphaera spp. The amoA gene abundance of ammonia-oxidizing archaea (AOA) was higher than that of ammonia-oxidizing bacteria (AOB) in all soil samples, particularly in the interdunal soils (10(6)-10(8) archaeal amoA gene copies per gram dry soil), indicating that AOA possibly dominate the ammonia oxidation at the interdunes.
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Affiliation(s)
- Ruyin Liu
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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39
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Lv XL, Xie BS, Cai M, Tang YQ, Wang YN, Cui HL, Liu XY, Tan Y, Wu XL. Halodurantibacterium flavum gen. nov., sp. nov., a non-phototrophic bacterium isolated from an oil production mixture. Curr Microbiol 2014; 70:141-8. [PMID: 25240291 DOI: 10.1007/s00284-014-0696-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 08/10/2014] [Indexed: 11/25/2022]
Abstract
Three Gram-negative bacterial strains, DQW12E6-69-1(T), DQW12E61-22-1, and DQW12E6-22-1-1, were isolated from an oil production mixture from Daqing Oilfield, northeastern China. The phylogenetic analysis based on the 16S rRNA gene sequences revealed that the three strains formed a stable cluster different from the known genus in Rhodobacteraceae of Alphaproteobacteria. In addition, they were most closely related to species in genera Pararhodobacter, Rhodobacter ,and Rhodobaca with the 16S rRNA gene sequence similarities being 95.1-95.9 %. Cells of the three strains were aerobic; they do not require salt to grow but are resistant to high salinity. They could conduct chemoorganoheterotrophic growth on various carbon sources, with non-phototrophic growth observed. The genomic DNA G+C contents of the strains DQW12E6-69-1(T), DQW12E6-22-1-1, and DQW12E61-22-1 were 63.8, 63.7, and 63.6 mol%, respectively. The predominant respiratory ubiquinone of DQW12E6-69-1(T) was Q-10, and the major fatty acids were C18:1 ω7c, C(18:0), and C(10:0) 3-OH. Photosynthetic pigments and photosynthetic reaction center gene pufM were not detected. The polar lipids were phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, unidentified glycolipid, and unidentified phospholipid. On the basis of phenotypic, genotypic, and chemotaxonomic characteristics, strains DQW12E6-69-1(T), DQW12E61-22-1, and DQW12E6-22-1-1 represent a novel genus and a novel species of the family Rhodobacteraceae. The name Halodurantibacterium flavum gen. nov., sp. nov. is proposed with strain DQW12E6-69-1(T) (=LMG 27742(T) = CGMCC 1.12756(T)) as the type strain.
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Affiliation(s)
- Xiang-Lin Lv
- College of Engineering, Peking University, Beijing, 100871, People's Republic of China
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40
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Lv XL, Xie BS, Cai M, Geng S, Tang YQ, Wang YN, Cui HL, Liu XY, Ye SY, Wu XL. Glycocaulis albus sp. nov., a moderately halophilic dimorphic prosthecate bacterium isolated from petroleum-contaminated saline soil. Int J Syst Evol Microbiol 2014; 64:3181-3187. [DOI: 10.1099/ijs.0.063537-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two novel bacterial strains, SLG210-30A1T and SLG210-19A2, which shared 99.9 % 16S rRNA gene sequence similarity with each other, were isolated from petroleum-contaminated saline soil in Shengli Oilfield, eastern China. Cells were Gram-stain-negative, motile, aerobic, mesophilic and moderately halophilic. They could grow chemoheterotrophically with oxygen as an electron acceptor. Morphologically, cells were typical Caulobacteria-type dimorphic prosthecate bacteria. The genomic DNA G+C contents of strains SLG210-30A1T and SLG210-19A2 were 61.8 mol% and 61.6 mol% respectively. Strain SLG210-30A1T had Q10 as the predominant respiratory ubiquinone, and C16 : 0 (28.4 %), C17 : 0 (11.6 %), C18 : 0 (22.1 %) and C18 : 1ω7c (14.0 %) as the major cellular fatty acids. The polar lipids of the two isolates were some glycolipids, a lipid, a phospholipid, an aminoglycolipid and an aminophospholipid (all unidentified). The 16S rRNA gene sequences of strains SLG210-30A1T and SLG210-19A2 showed the highest similarities with
Glycocaulis abyssi
MCS 33T (99.8–99.9 %), but low sequence similarities (<94.7 %) with type strains of other members of the family
Hyphomonadaceae
. However, the DNA–DNA relatedness of
G. abyssi
MCS 33T to strains SLG210-30A1T and SLG210-19A2 was 37.4±4.4 % and 36.1±1.1 %, respectively. Based on different physiological, biochemical, and phylogenetic characteristics, strains SLG210-30A1T and SLG210-19A2 represent a novel species of the genus
Glycocaulis
. The name Glycocaulis albus is therefore proposed with strain SLG210-30A1T ( = LMG 27741T = CGMCC 1.12766T) as the type strain. An emended description of the genus
Glycocaulis
is also provided.
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Affiliation(s)
- Xiang-Lin Lv
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Bai-Sheng Xie
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Man Cai
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Shuang Geng
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Yue-Qin Tang
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, PR China
| | - Ya-Nan Wang
- Institute of Biology, Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Heng-Lin Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xue-Ying Liu
- College of Engineering, Peking University, Beijing 100871, PR China
| | - Si-Yuan Ye
- Qingdao Institute of Marine Geology, No. 62, Fuzhou Rd. Qingdao 266071, PR China
| | - Xiao-Lei Wu
- College of Engineering, Peking University, Beijing 100871, PR China
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Zhang F, She YH, Banat IM, Chai LJ, Huang LQ, Yi SJ, Wang ZL, Dong HL, Hou DJ. Genomovar assignment of Pseudomonas stutzeri populations inhabiting produced oil reservoirs. Microbiologyopen 2014; 3:446-56. [PMID: 24890829 PMCID: PMC4287174 DOI: 10.1002/mbo3.179] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 03/25/2014] [Accepted: 04/07/2014] [Indexed: 11/18/2022] Open
Abstract
Oil reservoirs are specific habitats for the survival and growth of microorganisms in general. Pseudomonas stutzeri which is believed to be an exogenous organism inoculated into oil reservoirs during the process of oil production was detected frequently in samples from oil reservoirs. Very little is known, however, about the distribution and genetic structure of P. stutzeri in the special environment of oil reservoirs. In this study, we collected 59 P. stutzeri 16S rRNA gene sequences that were identified in 42 samples from 25 different oil reservoirs and we isolated 11 cultured strains from two representative oil reservoirs aiming to analyze the diversity and genomovar assignment of the species in oil reservoirs. High diversity of P. stutzeri was observed, which was exemplified in the detection of sequences assigned to four known genomovars 1, 2, 3, 20 and eight unknown genomic groups of P. stutzeri. The frequent detection and predominance of strains belonging to genomovar 1 in most of the oil reservoirs under study indicated an association of genomovars of P. stutzeri with the oil field environments.
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Affiliation(s)
- Fan Zhang
- The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, Ministry of Education, China; School of Energy Resources, China University of Geosciences (Beijing), Beijing, 100083, China
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42
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Li G, Gao P, Wu Y, Tian H, Dai X, Wang Y, Cui Q, Zhang H, Pan X, Dong H, Ma T. Microbial abundance and community composition influence production performance in a low-temperature petroleum reservoir. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:5336-5344. [PMID: 24730445 DOI: 10.1021/es500239w] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Enhanced oil recovery using indigenous microorganisms has been successfully applied in the petroleum industry, but the role of microorganisms remains poorly understood. Here, we investigated the relationship between microbial population dynamics and oil production performance during a water flooding process coupled with nutrient injection in a low-temperature petroleum reservoir. Samples were collected monthly over a two-year period. The microbial composition of samples was determined using 16S rRNA gene pyrosequencing and real-time quantitative polymerase chain reaction analyses. Our results indicated that the microbial community structure in each production well microhabitat was dramatically altered during flooding with eutrophic water. As well as an increase in the density of microorganisms, biosurfactant producers, such as Pseudomonas, Alcaligenes, Rhodococcus, and Rhizobium, were detected in abundance. Furthermore, the density of these microorganisms was closely related to the incremental oil production. Oil emulsification and changes in the fluid-production profile were also observed. In addition, we found that microbial community structure was strongly correlated with environmental factors, such as water content and total nitrogen. These results suggest that injected nutrients increase the abundance of microorganisms, particularly biosurfactant producers. These bacteria and their metabolic products subsequently emulsify oil and alter fluid-production profiles to enhance oil recovery.
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Affiliation(s)
- Guoqiang Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Tianjin 300071, P.R. China
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43
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Dynamic processes of indigenous microorganisms from a low-temperature petroleum reservoir during nutrient stimulation. J Biosci Bioeng 2014; 117:215-221. [DOI: 10.1016/j.jbiosc.2013.07.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/25/2013] [Accepted: 07/20/2013] [Indexed: 11/20/2022]
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44
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Comparison of bacterial community in aqueous and oil phases of water-flooded petroleum reservoirs using pyrosequencing and clone library approaches. Appl Microbiol Biotechnol 2014; 98:4209-21. [DOI: 10.1007/s00253-013-5472-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 12/06/2013] [Accepted: 12/08/2013] [Indexed: 10/25/2022]
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45
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Sun JQ, Xu L, Zhang Z, Li Y, Tang YQ, Wu XL. Diverse bacteria isolated from microtherm oil-production water. Antonie van Leeuwenhoek 2013; 105:401-11. [DOI: 10.1007/s10482-013-0088-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 11/25/2013] [Indexed: 12/01/2022]
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46
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Use of a hierarchical oligonucleotide primer extension approach for multiplexed relative abundance analysis of methanogens in anaerobic digestion systems. Appl Environ Microbiol 2013; 79:7598-609. [PMID: 24077716 DOI: 10.1128/aem.02450-13] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In this study, we established a rapid multiplex method to detect the relative abundances of amplified 16S rRNA genes from known cultivatable methanogens at hierarchical specificities in anaerobic digestion systems treating industrial wastewater and sewage sludge. The method was based on the hierarchical oligonucleotide primer extension (HOPE) technique and combined with a set of 27 primers designed to target the total archaeal populations and methanogens from 22 genera within 4 taxonomic orders. After optimization for their specificities and detection sensitivity under the conditions of multiple single-nucleotide primer extension reactions, the HOPE approach was applied to analyze the methanogens in 19 consortium samples from 7 anaerobic treatment systems (i.e., 513 reactions). Among the samples, the methanogen populations detected with order-level primers accounted for >77.2% of the PCR-amplified 16S rRNA genes detected using an Archaea-specific primer. The archaeal communities typically consisted of 2 to 7 known methanogen genera within the Methanobacteriales, Methanomicrobiales, and Methanosarcinales and displayed population dynamic and spatial distributions in anaerobic reactor operations. Principal component analysis of the HOPE data further showed that the methanogen communities could be clustered into 3 distinctive groups, in accordance with the distribution of the Methanosaeta, Methanolinea, and Methanomethylovorans, respectively. This finding suggested that in addition to acetotrophic and hydrogenotrophic methanogens, the methylotrophic methanogens might play a key role in the anaerobic treatment of industrial wastewater. Overall, the results demonstrated that the HOPE approach is a specific, rapid, and multiplexing platform to determine the relative abundances of targeted methanogens in PCR-amplified 16S rRNA gene products.
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47
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Lenchi N, İnceoğlu Ö, Kebbouche-Gana S, Gana ML, Llirós M, Servais P, García-Armisen T. Diversity of Microbial Communities in Production and Injection Waters of Algerian Oilfields Revealed by 16S rRNA Gene Amplicon 454 Pyrosequencing. PLoS One 2013; 8:e66588. [PMID: 23805243 PMCID: PMC3689743 DOI: 10.1371/journal.pone.0066588] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 05/08/2013] [Indexed: 02/06/2023] Open
Abstract
The microorganisms inhabiting many petroleum reservoirs are multi-extremophiles capable of surviving in environments with high temperature, pressure and salinity. Their activity influences oil quality and they are an important reservoir of enzymes of industrial interest. To study these microbial assemblages and to assess any modifications that may be caused by industrial practices, the bacterial and archaeal communities in waters from four Algerian oilfields were described and compared. Three different types of samples were analyzed: production waters from flooded wells, production waters from non-flooded wells and injection waters used for flooding (water-bearing formations). Microbial communities of production and injection waters appeared to be significantly different. From a quantitative point of view, injection waters harbored roughly ten times more microbial cells than production waters. Bacteria dominated in injection waters, while Archaea dominated in production waters. Statistical analysis based on the relative abundance and bacterial community composition (BCC) revealed significant differences between production and injection waters at both OTUs0.03 and phylum level. However, no significant difference was found between production waters from flooded and non-flooded wells, suggesting that most of the microorganisms introduced by the injection waters were unable to survive in the production waters. Furthermore, a Venn diagram generated to compare the BCC of production and injection waters of one flooded well revealed only 4% of shared bacterial OTUs. Phylogenetic analysis of bacterial sequences indicated that Alpha-, Beta- and Gammaproteobacteria were the main classes in most of the water samples. Archaeal sequences were only obtained from production wells and each well had a unique archaeal community composition, mainly belonging to Methanobacteria, Methanomicrobia, Thermoprotei and Halobacteria classes. Many of the bacterial genera retrieved had already been reported as degraders of complex organic molecules and pollutants. Nevertheless, a large number of unclassified bacterial and archaeal sequences were found in the analyzed samples, indicating that subsurface waters in oilfields could harbor new and still-non-described microbial species.
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Affiliation(s)
- Nesrine Lenchi
- Department of Biology, Laboratory of Conservation and Valorisation of Biological Ressources, University M’Hamed Bougara of Boumerdes, Boumerdes, Algeria
- Ecology of Aquatic Systems L, Université Libre de Bruxelles, Brussels, Belgium
| | - Özgül İnceoğlu
- Ecology of Aquatic Systems L, Université Libre de Bruxelles, Brussels, Belgium
| | - Salima Kebbouche-Gana
- Department of Biology, Laboratory of Conservation and Valorisation of Biological Ressources, University M’Hamed Bougara of Boumerdes, Boumerdes, Algeria
| | - Mohamed Lamine Gana
- Center of Research and Development, Biocorrosion Laboratory (Sonatrach), Boumerdes, Algeria
| | - Marc Llirós
- Department of Genetics and microbiology, Biosciences Faculty, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pierre Servais
- Ecology of Aquatic Systems L, Université Libre de Bruxelles, Brussels, Belgium
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48
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Bacterial communities associated with subsurface geochemical processes in continental serpentinite springs. Appl Environ Microbiol 2013; 79:3906-16. [PMID: 23584766 DOI: 10.1128/aem.00330-13] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Reactions associated with the geochemical process of serpentinization can generate copious quantities of hydrogen and low-molecular-weight organic carbon compounds, which may provide energy and nutrients to sustain subsurface microbial communities independently of the photosynthetically supported surface biosphere. Previous microbial ecology studies have tested this hypothesis in deep sea hydrothermal vents, such as the Lost City hydrothermal field. This study applied similar methods, including molecular fingerprinting and tag sequencing of the 16S rRNA gene, to ultrabasic continental springs emanating from serpentinizing ultramafic rocks. These molecular surveys were linked with geochemical measurements of the fluids in an interdisciplinary approach designed to distinguish potential subsurface organisms from those derived from surface habitats. The betaproteobacterial genus Hydrogenophaga was identified as a likely inhabitant of transition zones where hydrogen-enriched subsurface fluids mix with oxygenated surface water. The Firmicutes genus Erysipelothrix was most strongly correlated with geochemical factors indicative of subsurface fluids and was identified as the most likely inhabitant of a serpentinization-powered subsurface biosphere. Both of these taxa have been identified in multiple hydrogen-enriched subsurface habitats worldwide, and the results of this study contribute to an emerging biogeographic pattern in which Betaproteobacteria occur in near-surface mixing zones and Firmicutes are present in deeper, anoxic subsurface habitats.
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Wentzel A, Lewin A, Cervantes FJ, Valla S, Kotlar HK. Deep Subsurface Oil Reservoirs as Poly-extreme Habitats for Microbial Life. A Current Review. CELLULAR ORIGIN, LIFE IN EXTREME HABITATS AND ASTROBIOLOGY 2013. [DOI: 10.1007/978-94-007-6488-0_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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50
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Gong XC, Liu ZS, Guo P, Chi CQ, Chen J, Wang XB, Tang YQ, Wu XL, Liu CZ. Bacteria in crude oil survived autoclaving and stimulated differentially by exogenous bacteria. PLoS One 2012; 7:e40842. [PMID: 23028421 PMCID: PMC3444520 DOI: 10.1371/journal.pone.0040842] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Accepted: 06/13/2012] [Indexed: 11/19/2022] Open
Abstract
Autoclaving of crude oil is often used to evaluate the hydrocarbon-degrading abilities of bacteria. This may be potentially useful for bioaugmentation and microbial enhanced oil recovery (MEOR). However, it is not entirely clear if “endogenous” bacteria (e.g., spores) in/on crude oil survive the autoclaving process, or influence subsequent evaluation of the hydrocarbon-degradation abilities of the “exogenous” bacterial strains. To test this, we inoculated autoclaved crude oil medium with six exogenous bacterial strains (three Dietzia strains, two Acinetobacter strains, and one Pseudomonas strain). The survival of the spore-forming Bacillus and Paenibacillus and the non-spore-forming mesophilic Pseudomonas, Dietzia, Alcaligenes, and Microbacterium was detected using a 16S rRNA gene clone library and terminal restriction fragment length polymorphism (T-RFLP) analysis. However, neither bacteria nor bacterial activity was detected in three controls consisting of non-inoculated autoclaved crude oil medium. These results suggest that detection of endogenous bacteria was stimulated by the six inoculated strains. In addition, inoculation with Acinetobacter spp. stimulated detection of Bacillus, while inoculation with Dietzia spp. and Pseudomonas sp. stimulated the detection of more Pseudomonas. In contrast, similar exogenous bacteria stimulated similar endogenous bacteria at the genus level. Based on these results, special emphasis should be applied to evaluate the influence of bacteria capable of surviving autoclaving on the hydrocarbon-degrading abilities of exogenous bacteria, in particular, with regard to bioaugmentation and MEOR. Bioaugmentation and MEOR technologies could then be developed to more accurately direct the growth of specific endogenous bacteria that may then improve the efficiency of treatment or recovery of crude oil.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiao-Lei Wu
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, P.R. China
- * E-mail:
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