1
|
Liu Q, Jian W, Wang L, Yang S, Niu Y, Xie S, Hayer K, Chen K, Zhang Y, Guo Y, Tu Z. Alleviation of DSS-induced colitis in mice by a new-isolated Lactobacillus acidophilus C4. Front Microbiol 2023; 14:1137701. [PMID: 37152759 PMCID: PMC10157218 DOI: 10.3389/fmicb.2023.1137701] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 04/03/2023] [Indexed: 05/09/2023] Open
Abstract
Introduction Probiotic is adjuvant therapy for traditional drug treatment of ulcerative colitis (UC). In the present study, Lactobacillus acidophilus C4 with high acid and bile salt resistance has been isolated and screened, and the beneficial effect of L. acidophilus C4 on Dextran Sulfate Sodium (DSS)-induced colitis in mice has been evaluated. Our data showed that oral administration of L. acidophilus C4 remarkably alleviated colitis symptoms in mice and minimized colon tissue damage. Methods To elucidate the underlying mechanism, we have investigated the levels of inflammatory cytokines and intestinal tight junction (TJ) related proteins (occludin and ZO-1) in colon tissue, as well as the intestinal microbiota and short-chain fatty acids (SCFAs) in feces. Results Compared to the DSS group, the inflammatory cytokines IL-1β, IL-6, and TNF-α in L. acidophilus C4 group were reduced, while the antioxidant enzymes superoxide dismutase (SOD), glutathione (GSH), and catalase (CAT) were found to be elevated. In addition, proteins linked to TJ were elevated after L. acidophilus C4 intervention. Further study revealed that L. acidophilus C4 reversed the decrease in intestinal microbiota diversity caused by colitis and promoted the levels of SCFAs. Discussion This study demonstrate that L. acidophilus C4 effectively alleviated DSS-induced colitis in mice by repairing the mucosal barrier and maintaining the intestinal microecological balance. L. acidophilus C4 could be of great potential for colitis therapy.
Collapse
Affiliation(s)
- Qianqian Liu
- Department of Pathogen Biology, College of Basic Medical Science, Chongqing Medical University, Chongqing, China
| | - Wenwen Jian
- Department of Pathogen Biology, College of Basic Medical Science, Chongqing Medical University, Chongqing, China
| | - Lu Wang
- Department of Pathogen Biology, College of Basic Medical Science, Chongqing Medical University, Chongqing, China
| | - Shenglin Yang
- Department of Pathogen Biology, College of Basic Medical Science, Chongqing Medical University, Chongqing, China
| | - Yutian Niu
- International Medical College, Chongqing Medical University, Chongqing, China
| | - ShuaiJing Xie
- Department of Pathogen Biology, College of Basic Medical Science, Chongqing Medical University, Chongqing, China
| | - Kim Hayer
- Leicester Medical School, University of Leicester, Leicester, United Kingdom
| | - Kun Chen
- College of Foreign Languages, Chongqing Medical University, Chongqing, China
| | - Yi Zhang
- International Medical College, Chongqing Medical University, Chongqing, China
| | - Yanan Guo
- International Medical College, Chongqing Medical University, Chongqing, China
| | - Zeng Tu
- Department of Pathogen Biology, College of Basic Medical Science, Chongqing Medical University, Chongqing, China
- *Correspondence: Zeng Tu,
| |
Collapse
|
2
|
Comparative analysis of bacterial community and functional species in oil reservoirs with different in situ temperatures. Int Microbiol 2020; 23:557-563. [PMID: 32337649 DOI: 10.1007/s10123-020-00125-1] [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] [Received: 10/15/2019] [Revised: 03/30/2020] [Accepted: 04/02/2020] [Indexed: 10/24/2022]
Abstract
Temperature is supposed to be one of the primary drivers for the bacterial diversification as well as hydrocarbon formation process of oil reservoirs. However, the bacterial community compositions are not systematically elucidated in oil reservoirs with different temperatures. Herein, the diversity of indigenous bacteria and the functional species in the water samples from oil reservoirs with different in situ temperatures was investigated by high-throughput sequencing technology. The results showed that samples in the high (65 °C) and super high (80 °C) temperature oil reservoir had significantly high bacterial richness, even more than twice as much as moderate temperature (36 °C) ones, which showed relatively high bacterial diversity. Meanwhile, the bacterial compositions were almost similar in the high temperature oil reservoirs but there were different relative abundances of the bacterial communities. Phylogenetic analysis revealed that indigenous bacteria fell into 20 phylotypes in which Proteobacteria were the principal phylum in all of samples. At the genus level, 10 out of 22 major genera displayed statistically significant differences. Among of them, Pseudomonas was extremely dominant in all of samples, while Halomonas, Caldicoprobacter, Arcobacter, and Marinobacter tended to be enriched in the high temperature oil reservoirs. Moreover, the abundance of bacterial populations exhibited important distinction in oil reservoir such as hydrocarbon-oxidizing, fermentative, nitrate-reducing, sulfate-reducing, and methanogenic bacteria. Those bacteria were strongly correlated to in situ temperature variation.
Collapse
|
3
|
Zhao F, Li P, Guo C, Shi RJ, Zhang Y. Bioaugmentation of oil reservoir indigenous Pseudomonas aeruginosa to enhance oil recovery through in-situ biosurfactant production without air injection. BIORESOURCE TECHNOLOGY 2018; 251:295-302. [PMID: 29289873 DOI: 10.1016/j.biortech.2017.12.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 12/17/2017] [Accepted: 12/18/2017] [Indexed: 06/07/2023]
Abstract
Considering the anoxic conditions within oil reservoirs, a new microbial enhanced oil recovery (MEOR) technology through in-situ biosurfactant production without air injection was proposed. High-throughput sequencing data revealed that Pseudomonas was one of dominant genera in Daqing oil reservoirs. Pseudomonas aeruginosa DQ3 which can anaerobically produce biosurfactant at 42 °C was isolated. Strain DQ3 was bioaugmented in an anaerobic bioreactor to approximately simulate MEOR process. During bioaugmentation process, although a new bacterial community was gradually formed, Pseudomonas was still one of dominant genera. Culture-based data showed that hydrocarbon-degrading bacteria and biosurfactant-producing bacteria were activated, while sulfate reducing bacteria were controlled. Biosurfactant was produced at simulated reservoir conditions, decreasing surface tension to 33.8 mN/m and emulsifying crude oil with EI24 = 58%. Core flooding tests revealed that extra 5.22% of oil was displaced by in-situ biosurfactant production. Bioaugmenting indigenous biosurfactant producer P. aeruginosa without air injection is promising for in-situ MEOR applications.
Collapse
Affiliation(s)
- Feng Zhao
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, China.
| | - Ping Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Guo
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rong-Jiu Shi
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, China
| | - Ying Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, China.
| |
Collapse
|
4
|
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.
Collapse
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
| |
Collapse
|
5
|
Kryachko Y. Novel approaches to microbial enhancement of oil recovery. J Biotechnol 2018; 266:118-123. [DOI: 10.1016/j.jbiotec.2017.12.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 12/01/2017] [Accepted: 12/18/2017] [Indexed: 01/06/2023]
|
6
|
Zhan Y, Wang Q, Chen C, Kim JB, Zhang H, Yoza BA, Li QX. Potential of wheat bran to promote indigenous microbial enhanced oil recovery. J Ind Microbiol Biotechnol 2017; 44:845-855. [PMID: 28190109 DOI: 10.1007/s10295-017-1909-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 01/29/2017] [Indexed: 11/29/2022]
Abstract
Microbial enhanced oil recovery (MEOR) is an emerging oil extraction technology that utilizes microorganisms to facilitate recovery of crude oil in depleted petroleum reservoirs. In the present study, effects of wheat bran utilization were investigated on stimulation of indigenous MEOR. Biostimulation conditions were optimized with the response surface methodology. The co-application of wheat bran with KNO3 and NH4H2PO4 significantly promoted indigenous MEOR (IMEOR) and exhibited sequential aerobic (O-), facultative (An-) and anaerobic (A0-) metabolic stages. The surface tension of fermented broth decreased by approximately 35%, and the crude oil was highly emulsified. Microbial community structure varied largely among and in different IMEOR metabolic stages. Pseudomonas sp., Citrobacter sp., and uncultured Burkholderia sp. dominated the O-, An- and early A0-stages. Bacillus sp., Achromobacter sp., Rhizobiales sp., Alcaligenes sp. and Clostridium sp. dominated the later A0-stage. This study illustrated occurrences of microbial community succession driven by wheat bran stimulation and its industrial potential.
Collapse
Affiliation(s)
- Yali Zhan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Qinghong Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Chunmao Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China.,Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, 96822, USA
| | - Jung Bong Kim
- Department of Agro-Food Resources, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, 55365, Republic of Korea
| | - Hongdan Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Brandon A Yoza
- Hawaii Natural Energy Institute, University of Hawaii at Manoa, Honolulu, HI, 96822, USA
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, 96822, USA.
| |
Collapse
|
7
|
Tian H, Gao P, Chen Z, Li Y, Li Y, Wang Y, Zhou J, Li G, Ma T. Compositions and Abundances of Sulfate-Reducing and Sulfur-Oxidizing Microorganisms in Water-Flooded Petroleum Reservoirs with Different Temperatures in China. Front Microbiol 2017; 8:143. [PMID: 28210252 PMCID: PMC5288354 DOI: 10.3389/fmicb.2017.00143] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 01/19/2017] [Indexed: 11/13/2022] Open
Abstract
Sulfate-reducing bacteria (SRB) have been studied extensively in the petroleum industry due to their role in corrosion, but very little is known about sulfur-oxidizing bacteria (SOB), which drive the oxidization of sulfur-compounds produced by the activity of SRB in petroleum reservoirs. Here, we surveyed the community structure, diversity and abundance of SRB and SOB simultaneously based on 16S rRNA, dsrB and soxB gene sequencing, and quantitative PCR analyses, respectively in petroleum reservoirs with different physicochemical properties. Similar to SRB, SOB were found widely inhabiting the analyzed reservoirs with high diversity and different structures. The dominant SRB belonged to the classes Deltaproteobacteria and Clostridia, and included the Desulfotignum, Desulfotomaculum, Desulfovibrio, Desulfobulbus, and Desulfomicrobium genera. The most frequently detected potential SOB were Sulfurimonas, Thiobacillus, Thioclava, Thiohalomonas and Dechloromonas, and belonged to Betaproteobacteria, Alphaproteobacteria, and Epsilonproteobacteria. Among them, Desulfovibrio, Desulfomicrobium, Thioclava, and Sulfurimonas were highly abundant in the low-temperature reservoirs, while Desulfotomaculum, Desulfotignum, Thiobacillus, and Dechloromonas were more often present in high-temperature reservoirs. The relative abundances of SRB and SOB varied and were present at higher proportions in the relatively high-temperature reservoirs. Canonical correspondence analysis also revealed that the SRB and SOB communities in reservoirs displayed high niche specificity and were closely related to reservoir temperature, pH of the formation brine, and sulfate concentration. In conclusion, this study extends our knowledge about the distribution of SRB and SOB communities in petroleum reservoirs.
Collapse
Affiliation(s)
- Huimei Tian
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University Tianjin, China
| | - Peike Gao
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University Tianjin, China
| | - Zhaohui Chen
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University Tianjin, China
| | - Yanshu Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University Tianjin, China
| | - Yan Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University Tianjin, China
| | - Yansen Wang
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University Tianjin, China
| | - Jiefang Zhou
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University Tianjin, China
| | - Guoqiang Li
- 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
| |
Collapse
|
8
|
Dong H, Xia W, Dong H, She Y, Zhu P, Liang K, Zhang Z, Liang C, Song Z, Sun S, Zhang G. Rhamnolipids Produced by Indigenous Acinetobacter junii from Petroleum Reservoir and its Potential in Enhanced Oil Recovery. Front Microbiol 2016; 7:1710. [PMID: 27872613 PMCID: PMC5097926 DOI: 10.3389/fmicb.2016.01710] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 10/12/2016] [Indexed: 12/31/2022] Open
Abstract
Biosurfactant producers are crucial for incremental oil production in microbial enhanced oil recovery (MEOR) processes. The isolation of biosurfactant-producing bacteria from oil reservoirs is important because they are considered suitable for the extreme conditions of the reservoir. In this work, a novel biosurfactant-producing strain Acinetobacter junii BD was isolated from a reservoir to reduce surface tension and emulsify crude oil. The biosurfactants produced by the strain were purified and then identified via electrospray ionization-Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR-MS). The biosurfactants generated by the strain were concluded to be rhamnolipids, the dominant rhamnolipids were C26H48O9, C28H52O9, and C32H58O13. The optimal carbon source and nitrogen source for biomass and biosurfactant production were NaNO3 and soybean oil. The results showed that the content of acid components increased with the progress of crude oil biodegradation. A glass micromodel test demonstrated that the strain significantly increased oil recovery through interfacial tension reduction, wettability alteration and the mobility of microorganisms. In summary, the findings of this study indicate that the newly developed BD strain and its metabolites have great potential in MEOR.
Collapse
Affiliation(s)
- Hao Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of PetroleumBeijing, China
| | - Wenjie Xia
- Power Environmental Energy Research Institute, CovinaCA, USA
| | - Honghong Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of PetroleumBeijing, China
| | - Yuehui She
- College of Chemistry and Environmental Engineering, Yangtze UniversityJingzhou, China
| | - Panfeng Zhu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of PetroleumBeijing, China
| | - Kang Liang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of PetroleumBeijing, China
| | - Zhongzhi Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of PetroleumBeijing, China
| | - Chuanfu Liang
- Dalian Design Branch, China Petroleum Engineering and Construction CorporationDalian, China
| | - Zhaozheng Song
- State Key Laboratory of Heavy Oil Processing, Faculty of Sciences, China University of PetroleumBeijing, China
| | - Shanshan Sun
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of PetroleumBeijing, China
| | - Guangqing Zhang
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, WollongongNSW, Australia
| |
Collapse
|
9
|
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.
Collapse
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.
| |
Collapse
|
10
|
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.
Collapse
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
| | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Bogino P, Abod A, Nievas F, Giordano W. Water-limiting conditions alter the structure and biofilm-forming ability of bacterial multispecies communities in the alfalfa rhizosphere. PLoS One 2013; 8:e79614. [PMID: 24223979 PMCID: PMC3817132 DOI: 10.1371/journal.pone.0079614] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 09/26/2013] [Indexed: 11/18/2022] Open
Abstract
Biofilms are microbial communities that adhere to biotic or abiotic surfaces and are enclosed in a protective matrix of extracellular compounds. An important advantage of the biofilm lifestyle for soil bacteria (rhizobacteria) is protection against water deprivation (desiccation or osmotic effect). The rhizosphere is a crucial microhabitat for ecological, interactive, and agricultural production processes. The composition and functions of bacterial biofilms in soil microniches are poorly understood. We studied multibacterial communities established as biofilm-like structures in the rhizosphere of Medicago sativa (alfalfa) exposed to 3 experimental conditions of water limitation. The whole biofilm-forming ability (WBFA) for rhizospheric communities exposed to desiccation was higher than that of communities exposed to saline or nonstressful conditions. A culture-dependent ribotyping analysis indicated that communities exposed to desiccation or saline conditions were more diverse than those under the nonstressful condition. 16S rRNA gene sequencing of selected strains showed that the rhizospheric communities consisted primarily of members of the Actinobacteria and α- and γ-Proteobacteria, regardless of the water-limiting condition. Our findings contribute to improved understanding of the effects of environmental stress factors on plant-bacteria interaction processes and have potential application to agricultural management practices.
Collapse
Affiliation(s)
- Pablo Bogino
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, Argentina
| | - Ayelén Abod
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, Argentina
| | - Fiorela Nievas
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, Argentina
| | - Walter Giordano
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, Argentina
- * E-mail:
| |
Collapse
|
12
|
Pyrosequencing investigation into the bacterial community in permafrost soils along the China-Russia Crude Oil Pipeline (CRCOP). PLoS One 2012; 7:e52730. [PMID: 23300754 PMCID: PMC3530473 DOI: 10.1371/journal.pone.0052730] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 11/21/2012] [Indexed: 11/19/2022] Open
Abstract
The China-Russia Crude Oil Pipeline (CRCOP) goes through 441 km permafrost soils in northeastern China. The bioremediation in case of oil spills is a major concern. So far, little is known about the indigenous bacteria inhabiting in the permafrost soils along the pipeline. A pilot 454 pyrosequencing analysis on the communities from four selected sites which possess high environment risk along the CRCOP is herein presented. The results reveal an immense bacterial diversity than previously anticipated. A total of 14448 OTUs with 84834 reads are identified, which could be assigned into 39 different phyla, and 223 families or 386 genera. Only five phyla sustain a mean OTU abundance more than 5% in all the samples, but they altogether account for 85.08% of total reads. Proteobacteria accounts for 41.65% of the total OTUs or 45% of the reads across all samples, and its proportion generally increases with soil depth, but OTUs numerically decline. Among Proteobacteria, the abundance of Beta-, Alpha-, Delta- and Gamma- subdivisions average to 38.7% (2331 OTUs), 37.5% (2257 OTUs), 10.35% (616 OTUs), and 6.21% (374 OTUs), respectively. Acidobacteria (esp. Acidobacteriaceae), Actinobacteria (esp. Intrasporangiaceae), Bacteroidetes (esp. Sphingobacteria and Flavobacteria) and Chloroflexi (esp. Anaerolineaceae) are also very common, accounting for 8.56% (1237 OTUs), 7.86% (1136 OTUs); 7.35% (1063 OTUs) and 8.27% (1195 OTUs) of total libraries, respectively. The ordination analysis indicates that bacteria communities in the upper active layer cluster together (similar), while bacterial consortia from the lower active layer and permafrost table scatter (less similar). The abundance of Rhodococcus (12 OTUs), Pseudomonas (71 OTUs) and Sphingomonas (87 OTUs) is even less (<0.01%). This effort to profile the background diversity may set the first stage for better evaluating the bacterial dynamics in response to accidental oil spills.
Collapse
|
13
|
Microbial diversity in long-term water-flooded oil reservoirs with different in situ temperatures in China. Sci Rep 2012; 2:760. [PMID: 23094135 PMCID: PMC3478584 DOI: 10.1038/srep00760] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 09/27/2012] [Indexed: 11/12/2022] Open
Abstract
Water-flooded oil reservoirs have specific ecological environments due to continual water injection and oil production and water recycling. Using 16S rRNA gene clone library analysis, the microbial communities present in injected waters and produced waters from four typical water-flooded oil reservoirs with different in situ temperatures of 25°C, 40°C, 55°C and 70°C were examined. The results obtained showed that the higher the in situ temperatures of the oil reservoirs is, the less the effects of microorganisms in the injected waters on microbial community compositions in the produced waters is. In addition, microbes inhabiting in the produced waters of the four water-flooded oil reservoirs were varied but all dominated by Proteobacteria. Moreover, most of the detected microbes were not identified as indigenous. The objective of this study was to expand the pictures of the microbial ecosystem of water-flooded oil reservoirs.
Collapse
|
14
|
Ying YX, Ding WL, Li Y. Characterization of soil bacterial communities in rhizospheric and nonrhizospheric soil of Panax ginseng. Biochem Genet 2012; 50:848-59. [PMID: 22875735 DOI: 10.1007/s10528-012-9525-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 05/21/2012] [Indexed: 11/30/2022]
Abstract
A culture-independent approach was used to evaluate the bacterial community in rhizospheric and nonrhizospheric soil in which Panax ginseng had grown for 3 years. For each sample, soil was randomly collected from multiple sampling points and mixed thoroughly before genomic DNA extraction. Universal primers 27f and 1492r were used to amplify 16S rRNA genes. Clone libraries were constructed using the amplified 16S rRNA genes, and 192 white clones were chosen for further sequencing. After digestion with restriction endonuclease, 44 operational taxonomic units (OTUs) were generated for rhizospheric and 21 OTUs for nonrhizospheric soils, and the clones of each OTU were sequenced. Blast analysis showed that bacillus, acidobacteria, and proteobacteria were the dominant populations in rhizospheric soil, and proteobacteria were dominant in nonrhizospheric soil. Phylogenetic results showed that bacillus and acidobacteria were clustered into the group of uncultured bacteria in rhizospheric soil; however, proteobacteria were the unique dominant in nonrhizospheric soil.
Collapse
Affiliation(s)
- Yi Xin Ying
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151 Malianwa North Road, Beijing, 100193, China
| | | | | |
Collapse
|
15
|
Zhao L, Ma T, Gao M, Gao P, Cao M, Zhu X, Li G. Characterization of microbial diversity and community in water flooding oil reservoirs in China. World J Microbiol Biotechnol 2012; 28:3039-52. [PMID: 22806743 DOI: 10.1007/s11274-012-1114-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 06/15/2012] [Indexed: 12/01/2022]
Abstract
The diversity and distribution of bacterial and archaeal communities in four different water flooding oil reservoirs with different geological properties were investigated using 16S rDNA clone library construction method. Canonical correspondence analysis was used to analyze microbial community clustering and the correlation with environmental factors. The results indicated that the diversity and abundance in the bacterial communities were significantly higher than the archaeal communities, while both of them had high similarity within the communities respectively. Phylogenetic analysis showed that of compositions of bacterial communities were distinctly different both at phylum and genus level. Proteobacteria dominated in each bacterial community, ranging from 61.35 to 75.83 %, in which α-proteobacteria and γ-proteobacteria were the main groups. In comparison to bacterial communities, the compositions of archaeal communities were similar at phylum level, while varied at genus level, and the dominant population was Methanomicrobia, ranging from 65.91 to 92.74 % in the single oil reservoir. The factor that most significantly influenced the microbial communities in these reservoirs was found to be temperature. Other environmental factors also influenced the microbial communities but not significantly. It is therefore assumed that microbial communities are formed by an accumulated effect of several factors. These results are essential for understanding ecological environment of the water flooding oil reservoirs and providing scientific guidance to the performance of MEOR technology.
Collapse
Affiliation(s)
- Lingxia Zhao
- Key Laboratory of Molecular Microbiology Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
16
|
Tang YQ, Li Y, Zhao JY, Chi CQ, Huang LX, Dong HP, Wu XL. Microbial communities in long-term, water-flooded petroleum reservoirs with different in situ temperatures in the Huabei Oilfield, China. PLoS One 2012; 7:e33535. [PMID: 22432032 PMCID: PMC3303836 DOI: 10.1371/journal.pone.0033535] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Accepted: 02/10/2012] [Indexed: 11/19/2022] Open
Abstract
The distribution of microbial communities in the Menggulin (MGL) and Ba19 blocks in the Huabei Oilfield, China, were studied based on 16S rRNA gene analysis. The dominant microbes showed obvious block-specific characteristics, and the two blocks had substantially different bacterial and archaeal communities. In the moderate-temperature MGL block, the bacteria were mainly Epsilonproteobacteria and Alphaproteobacteria, and the archaea were methanogens belonging to Methanolinea, Methanothermobacter, Methanosaeta, and Methanocella. However, in the high-temperature Ba19 block, the predominant bacteria were Gammaproteobacteria, and the predominant archaea were Methanothermobacter and Methanosaeta. In spite of shared taxa in the blocks, differences among wells in the same block were obvious, especially for bacterial communities in the MGL block. Compared to the bacterial communities, the archaeal communities were much more conserved within blocks and were not affected by the variation in the bacterial communities.
Collapse
Affiliation(s)
- Yue-Qin Tang
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, People's Republic of China
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yan Li
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, People's Republic of China
| | - Jie-Yu Zhao
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, People's Republic of China
| | - Chang-Qiao Chi
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, People's Republic of China
| | - Li-Xin Huang
- Research Institute of Petroleum Exploration and Development (Langfang), China National Petroleum Corporation (CNPC), Beijing, People's Republic of China
| | - Han-Ping Dong
- Research Institute of Petroleum Exploration and Development (Langfang), China National Petroleum Corporation (CNPC), Beijing, People's Republic of China
| | - Xiao-Lei Wu
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, People's Republic of China
| |
Collapse
|
17
|
Impact of an indigenous microbial enhanced oil recovery field trial on microbial community structure in a high pour-point oil reservoir. Appl Microbiol Biotechnol 2011; 95:811-21. [DOI: 10.1007/s00253-011-3717-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 10/23/2011] [Accepted: 11/06/2011] [Indexed: 11/26/2022]
|
18
|
Eddouaouda K, Mnif S, Badis A, Younes SB, Cherif S, Ferhat S, Mhiri N, Chamkha M, Sayadi S. Characterization of a novel biosurfactant produced by Staphylococcus sp. strain 1E with potential application on hydrocarbon bioremediation. J Basic Microbiol 2011; 52:408-18. [PMID: 22052657 DOI: 10.1002/jobm.201100268] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Accepted: 07/11/2011] [Indexed: 11/08/2022]
Abstract
A biosurfactant-producing bacterium (Staphylococcus sp. strain 1E) was isolated from an Algerian crude oil contaminated soil. Biosurfactant production was tested with different carbon sources using the surface tension measurement and the oil displacement test. Olive oil produced the highest reduction in surface tension (25.9 dynes cm(-1)). Crude oil presented the best substrate for 1E biosurfactant emulsification activity. The biosurfactant produced by strain 1E reduced the growth medium surface tension below 30 dynes cm(-1). This reduction was also obtained in cell-free filtrates. Biosurfactant produced by strain 1E showed stability in a wide range of pH (from 2 to 12), temperature (from 4 to 55 °C) and salinity (from 0 to 300 g l(-1)) variations. The biosurfactant produced by strain 1E belonged to lipopeptide group and also constituted an antibacterial activity againt the pathogenic bacteria such as Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Bacillus subtilis. Phenanthrene solubility in water was enhanced by biosurfactant addition. Our results suggest that the 1E biosurfactant has interesting properties for its application in bioremediation of hydrocarbons contaminated sites.
Collapse
Affiliation(s)
- Kamel Eddouaouda
- Laboratoire des Bioprocédés Environnementaux, Pôle d'Excellence Régional AUF PER-LBPE, Centre de Biotechnologie de Sfax, Tunisie
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Mnif S, Chamkha M, Labat M, Sayadi S. Simultaneous hydrocarbon biodegradation and biosurfactant production by oilfield-selected bacteria. J Appl Microbiol 2011; 111:525-36. [PMID: 21668593 DOI: 10.1111/j.1365-2672.2011.05071.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To study the bacterial diversity associated with hydrocarbon biodegradation potentiality and biosurfactant production of Tunisian oilfields bacteria. METHODS AND RESULTS Eight Tunisian hydrocarbonoclastic oilfields bacteria have been isolated and selected for further characterization studies. Phylogenetic analysis revealed that three thermophilic strains belonged to the genera Geobacillus, Bacillus and Brevibacillus, and that five mesophilic strains belonged to the genera Pseudomonas, Lysinibacillus, Achromobacter and Halomonas. The bacterial strains were cultivated on crude oil as sole carbon and energy sources, in the presence of different NaCl concentrations (1, 5 and 10%, w/v), and at 37 or 55°C. The hydrocarbon biodegradation potential of each strain was quantified by GC-MS. Strain C450R, phylogenetically related to the species Pseudomonas aeruginosa, showed the maximum crude oil degradation potentiality. During the growth of strain C450R on crude oil (2%, v/v), the emulsifying activity (E24) and glycoside content increased and reached values of 77 and 1.33 g l(-1), respectively. In addition, the surface tension (ST) decreased from 68 to 35.1 mN m(-1), suggesting the production of a rhamnolipid biosurfactant. Crude biosurfactant had been partially purified and characterized. It showed interest stability against temperature and salinity increasing and important emulsifying activity against oils and hydrocarbons. CONCLUSIONS The results of this study showed the presence of diverse aerobic bacteria in Tunisian oilfields including mesophilic, thermophilic and halotolerant strains with interesting aliphatic hydrocarbon degradation potentiality, mainly for the most biosurfactant produced strains. SIGNIFICANCE AND IMPACT OF THE STUDY It may be suggested that the bacterial isolates are suitable candidates for practical field application for effective in situ bioremediation of hydrocarbon-contaminated sites.
Collapse
Affiliation(s)
- S Mnif
- Laboratoire des Bioprocédés Environnementaux, Pôle d'Excellence Régional AUF (PER-LBPE), Centre de Biotechnologie de Sfax, Université de Sfax, Sfax, Tunisie
| | | | | | | |
Collapse
|