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Chen J, Zhuang J, Dai T, Zhang R, Zeng Y, Jiang B, Guo H, Guo X, Yang Y. Enhancing soil petrochemical contaminant remediation through nutrient addition and exogenous bacterial introduction. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135078. [PMID: 38964043 DOI: 10.1016/j.jhazmat.2024.135078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 06/28/2024] [Accepted: 06/29/2024] [Indexed: 07/06/2024]
Abstract
Biostimulation (providing favorable environmental conditions for microbial growth) and bioaugmentation (introducing exogenous microorganisms) are effective approaches in the bioremediation of petroleum-contaminated soil. However, uncertainty remains in the effectiveness of these two approaches in practical application. In this study, we constructed mesocosms using petroleum hydrocarbon-contaminated soil. We compared the effects of adding nutrients, introducing exogenous bacterial degraders, and their combination on remediating petroleum contamination in the soil. Adding nutrients more effectively accelerated total petroleum hydrocarbon (TPH) degradation than other treatments in the initial 60 days' incubation. Despite both approaches stimulating bacterial richness, the community turnover caused by nutrient addition was gentler than bacterial degrader introduction. As TPH concentrations decreased, we observed a succession in microbial communities characterized by a decline in copiotrophic, fast-growing bacterial r-strategists with high rRNA operon (rrn) copy numbers. Ecological network analysis indicated that both nutrient addition and bacterial degrader introduction enhanced the complexity and stability of bacterial networks. Compared to the other treatment, the bacterial network with nutrient addition had more keystone species and a higher proportion of negative associations, factors that may enhance microbial community stability. Our study demonstrated that nutrient addition effectively regulates community succession and ecological interaction to accelerate the soil TPH degradation.
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Affiliation(s)
- Jiayu Chen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jugui Zhuang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Tianjiao Dai
- School of Environment, Tsinghua University, Beijing 100084, China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Ruihuan Zhang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yufei Zeng
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Bo Jiang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Huaming Guo
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China
| | - Xue Guo
- School of Environment, Tsinghua University, Beijing 100084, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China
| | - Yunfeng Yang
- School of Environment, Tsinghua University, Beijing 100084, China; Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Shenzhen 518055, China
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Yang WL, An ML, He WH, Luo X, Zhu L, Chen GB, Zhang YT, Wang YN. Marinobacter panjinensis sp. nov., a moderately halophilic bacterium isolated from sea tidal flat environment. Int J Syst Evol Microbiol 2023; 73. [PMID: 37167094 DOI: 10.1099/ijsem.0.005625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
Two moderately halotolerant bacterium strains, designated PJ-16T and PJ-38, were isolated from a tidal flat of the red beach in Panjin City, Liaoning Province, PR China. Cells were found to be Gram-stain-negative, aerobic, motile, rod-shaped with a single polar flagellum. Optimum growth of strain PJ-16T occurred at 30 °C, pH 7.0 and 0.2-8.0 % (w/v) NaCl, and strain PJ-38 at 30 °C, pH 6.0-7.0 and 0.2-8.0 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain PJ-16T was most closely related to Marinobacter denitrificans KCTC 62941T (99.2 % 16S rRNA gene sequence similarity), Marinobacter algicola DSM 16394T (98.6 %), Marinobacter salarius JCM 19399T (98.4 %) and Marinobacter confluentis KCTC 42705T (98.2 %), and strain PJ-38 was most closely related to M. denitrificans KCTC 62941T (99.1 %), M. algicola DSM 16394T (98.6 %), M. salarius JCM 19399T (98.4 %) and M. confluentis KCTC 42705T (98.1 %). The G+C content of the genomic DNA of strain PJ-16T based on its draft genomic sequence was 57.4 mol%. The major cellular fatty acids of strain PJ-16T were C16 : 0, C16 : 1 ω7c/C16 : 1 ω6c and C18 : 1 ω9c. The major respiratory quinone of PJ-16T was ubiquinone-9 and the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. The results of the phenotypic, phylogenetic and genomic analyses revealed that strains PJ-16T and PJ-38 represent a novel species of the genus Marinobacter, and the name Marinobacter panjinensis sp. nov. is proposed. The type strain is PJ-16T (= CGMCC 1.13694T= KCTC 72023T).
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Affiliation(s)
- Wen-Ling Yang
- Key Laboratory of Microbial Engineering at the Institute of Biology, Henan Academy of Sciences, Zhengzhou, 450008, PR China
| | - Ming-Li An
- Key Laboratory of Microbial Engineering at the Institute of Biology, Henan Academy of Sciences, Zhengzhou, 450008, PR China
| | - Wei-Hong He
- Key Laboratory of Microbial Engineering at the Institute of Biology, Henan Academy of Sciences, Zhengzhou, 450008, PR China
| | - Xin Luo
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450008, PR China
| | - Lin Zhu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450008, PR China
| | - Guan-Bin Chen
- School of Marine Science and Environment Engineering, Dalian Ocean University, Dalian, 116023, PR China
| | - Ying-Tao Zhang
- Key Laboratory of Microbial Engineering at the Institute of Biology, Henan Academy of Sciences, Zhengzhou, 450008, PR China
| | - Ya-Nan Wang
- Key Laboratory of Microbial Engineering at the Institute of Biology, Henan Academy of Sciences, Zhengzhou, 450008, PR China
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Cooper ZS, Rapp JZ, Shoemaker AMD, Anderson RE, Zhong ZP, Deming JW. Evolutionary Divergence of Marinobacter Strains in Cryopeg Brines as Revealed by Pangenomics. Front Microbiol 2022; 13:879116. [PMID: 35733954 PMCID: PMC9207381 DOI: 10.3389/fmicb.2022.879116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
Marinobacter spp. are cosmopolitan in saline environments, displaying a diverse set of metabolisms that allow them to competitively occupy these environments, some of which can be extreme in both salinity and temperature. Here, we introduce a distinct cluster of Marinobacter genomes, composed of novel isolates and in silico assembled genomes obtained from subzero, hypersaline cryopeg brines, relic seawater-derived liquid habitats within permafrost sampled near Utqiaġvik, Alaska. Using these new genomes and 45 representative publicly available genomes of Marinobacter spp. from other settings, we assembled a pangenome to examine how the new extremophile members fit evolutionarily and ecologically, based on genetic potential and environmental source. This first genus-wide genomic analysis revealed that Marinobacter spp. in general encode metabolic pathways that are thermodynamically favored at low temperature, cover a broad range of organic compounds, and optimize protein usage, e.g., the Entner–Doudoroff pathway, the glyoxylate shunt, and amino acid metabolism. The new isolates contributed to a distinct clade of subzero brine-dwelling Marinobacter spp. that diverged genotypically and phylogenetically from all other Marinobacter members. The subzero brine clade displays genomic characteristics that may explain competitive adaptations to the extreme environments they inhabit, including more abundant membrane transport systems (e.g., for organic substrates, compatible solutes, and ions) and stress-induced transcriptional regulatory mechanisms (e.g., for cold and salt stress) than in the other Marinobacter clades. We also identified more abundant signatures of potential horizontal transfer of genes involved in transcription, the mobilome, and a variety of metabolite exchange systems, which led to considering the importance of this evolutionary mechanism in an extreme environment where adaptation via vertical evolution is physiologically rate limited. Assessing these new extremophile genomes in a pangenomic context has provided a unique view into the ecological and evolutionary history of the genus Marinobacter, particularly with regard to its remarkable diversity and its opportunism in extremely cold and saline environments.
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Affiliation(s)
- Zachary S. Cooper
- School of Oceanography, University of Washington, Seattle, WA, United States
- Astrobiology Program, University of Washington, Seattle, WA, United States
- *Correspondence: Zachary S. Cooper, , orcid.org/0000-0001-6515-7971
| | - Josephine Z. Rapp
- Department of Biochemistry, Microbiology and Bioinformatics, Université Laval, Québec, QC, Canada
- Center for Northern Studies (CEN), Université Laval, Québec, QC, Canada
- Institute of Integrative Biology and Systems (IBIS), Université Laval, Québec, QC, Canada
| | - Anna M. D. Shoemaker
- Department of Earth Sciences, Montana State University, Bozeman, MT, United States
| | - Rika E. Anderson
- Department of Biology, Carleton College, Northfield, MN, United States
| | - Zhi-Ping Zhong
- Byrd Polar and Climate Research Center, Ohio State University, Columbus, OH, United States
- Department of Microbiology, Ohio State University, Columbus, OH, United States
- Center of Microbiome Science, Ohio State University, Columbus, OH, United States
| | - Jody W. Deming
- School of Oceanography, University of Washington, Seattle, WA, United States
- Astrobiology Program, University of Washington, Seattle, WA, United States
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Tourova TP, Sokolova DS, Semenova EM, Ershov AP, Grouzdev DS, Nazina TN. Genomic and Physiological Characterization of Halophilic Bacteria of the Genera Halomonas and Marinobacter from Petroleum Reservoirs. Microbiology (Reading) 2022. [DOI: 10.1134/s0026261722300038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Analysis of Microbial Communities in Aged Refuse Based on 16S Sequencing. SUSTAINABILITY 2021. [DOI: 10.3390/su13084111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aged refuse is widely considered to have certain soil fertility. 16S rRNA amplicon sequencing is used to investigate the microbial community of aged refuse. The aged refuse is found to contain higher soil fertility elements (total nitrogen, total phosphorus, total potassium, etc.) and higher concentrations of heavy metals (Pb, Cd, Zn, and Hg). Taxonomy based on operational taxonomic units (OTUs) shows that Actinobacteria, Proteobacteria, Chloroflexi, Acidobacteria, and Gemmatimonadetes are the main bacterial phyla in the two soils and there is a palpable difference in the microbial community composition between the two groups of samples. The genera Paramaledivibacter, Limnochorda, Marinobacter, Pseudaminobacter, Kocuria, Bdellovibrio, Halomonas, Gillisia, and Membranicola are enriched in the aged refuse. Functional predictive analysis shows that both the control soil and aged refuse have a high abundance of “carbohydrate metabolism” and “amino acid metabolism”, and show differences in the abundance of several metabolism pathways, such as “xenobiotics biodegradation and metabolism” and “lipid metabolism”. Aged refuse and undisturbed soil show significant differences in alpha diversity and microbial community composition. Multiple environmental factors (Hg, TN, Cr, Cd, etc.) significantly impact microorganisms’ abundance (Marinobacter, Halomonas, Blastococcus, etc.). Our study provides valuable knowledge for the ecological restoration of closed landfills.
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Lian FB, Chen XY, Jiang S, Li GY, Du ZJ. Marinobacter orientalis sp. nov., a thiosulfate-oxidizing bacterium isolated from a marine solar saltern. Antonie Van Leeuwenhoek 2021; 114:765-775. [PMID: 33751321 DOI: 10.1007/s10482-021-01556-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/06/2021] [Indexed: 11/25/2022]
Abstract
A facultatively anaerobic bacterium, strain W62T, was isolated from the marine solar saltern in Weihai, China. Cells of the novel strain were Gram-stain negative, non-flagellated, non-gliding, rod-shaped and around 0.3-0.5 × 2.5-3.9 µm in size. Optimum growth occurred at 33-37 °C, with 3-5% (w/v) NaCl and at pH 7.0-7.5. On the basis of phylogenetic analysis of the 16S rRNA gene sequence, strain W62T had close relationship with Marinobacter vulgaris F01T (98.6%), Marinobacter confluentis KCTC 42705T (98.4%) and Marinobacter halotolerans NBRC 110910T (97.7%). Genome sequencing revealed a genome size of 4,050,555 bp, a G+C content of 57.3% and a complete sox system related to thiosulfate oxidization. Strain W62T had ubiquinone-9 as the sole respiratory quinone and possessed Summed Features 3 (C16:1 ω7c/C16:1 ω6c), C16:0 and C18:1 ω9c as the major fatty acids. The major polar lipids of strain W62T were identified as aminophospholipid, phosphatidylglycerol and phosphatidylethanolamine. According to the results of the phenotypic, chemotaxonomic characterization, phylogenetic properties and genome analysis, strain W62T should represent a novel specie of the genus Marinobacter, for which the name Marinobacter orientalis sp. nov. is proposed. The type strain is W62T (= MCCC 1H00317T = KCTC 62593T).
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Affiliation(s)
- Feng-Bai Lian
- Marine College, Shandong University, Weihai, 264209, Shandong, People's Republic of China
| | - Xu-Yang Chen
- Marine College, Shandong University, Weihai, 264209, Shandong, People's Republic of China
| | - Shan Jiang
- Marine College, Shandong University, Weihai, 264209, Shandong, People's Republic of China
| | - Guang-Yu Li
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361000, Fujian, People's Republic of China
| | - Zong-Jun Du
- Marine College, Shandong University, Weihai, 264209, Shandong, People's Republic of China.
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Yang X, Xiang R, Iqbal NM, Duan YH, Zhang XA, Wang L, Yu LZ, Li JZ, Sun MF, Yang Q, Zheng CT, Liao SQ. Marinobacter shengliensis subsp. alexandrii Subsp. Nov., Isolated from Cultivable Phycosphere Microbiota of Highly Toxic Dinoflagellate Alexandrium catenella LZT09 and Description of Marinobacter shengliensis Subsp. shengliensis Subsp. Nov. Curr Microbiol 2021; 78:1648-1655. [PMID: 33651189 DOI: 10.1007/s00284-021-02431-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 02/12/2021] [Indexed: 02/03/2023]
Abstract
Phycosphere hosts the boundary of unique holobionts harboring dynamic algae-bacteria interactions. During our investigating the microbial consortia composition of phycosphere microbiota (PM) derived from diverse harmful algal blooms (HAB) dinoflagellates, a novel rod-shaped, motile and faint yellow-pigmented bacterium, designated as strain LZ-6 T, was isolated from HAB Alexandrium catenella LZT09 which produces high levels paralytic shellfish poisoning toxins. Phylogenetic analysis based on 16S rRNA gene and two housekeeping genes, rpoA and pheS sequences showed that the novel isolate shared the highest gene similarity with Marinobacter shengliensis CGMCC 1.12758 T (99.6%) with the similarity values of 99.6%, 99.9% and 98.5%, respectively. Further phylogenomic calculations of average nucleotide identity (ANI), average amino acid identity (AAI) and digital DNA-DNA hybridization (dDDH) values between strains LZ-6 T and the type strain of M. shengliensis were 95.9%, 96.4% and 68.5%, respectively. However, combined phenotypic and chemotaxonomic characterizations revealed that the new isolate was obviously different from the type strain of M. shengliensis. The obtained taxonomic evidences supported that strain LZ-6 T represents a novel subspecies of M. shengliensis, for which the name is proposed, Marinobacter shengliensis subsp. alexandrii subsp. nov. with the type strain LZ-6 T (= CCTCC AB 2018388TT = KCTC 72197 T). This proposal automatically creates Marinobacter shengliensis subsp. shengliensis for which the type strain is SL013A34A2T (= LMG 27740 T = CGMCC 1.12758 T).
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Affiliation(s)
- Xi Yang
- Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.,Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization, Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Rong Xiang
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Nurhezreen Md Iqbal
- Malaysia Genome Institute, National Institute of Biotechnology, 43000, Kajang, Malaysia
| | - Yu-Han Duan
- Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.,ABI Group, GPM Project, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Xiao-Ai Zhang
- Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization, Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Lei Wang
- Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization, Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Lin-Zeng Yu
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Jia-Zhou Li
- Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Ming-Fei Sun
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Qiao Yang
- Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China. .,ABI Group, GPM Project, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Chun-Tian Zheng
- Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
| | - Shen-Quan Liao
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Maoming Branch of Guangdong Laboratory for Lingnan Modern Agriculture, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
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Fan R, Ma W, Zhang H. Microbial community responses to soil parameters and their effects on petroleum degradation during bio-electrokinetic remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:142463. [PMID: 33113694 DOI: 10.1016/j.scitotenv.2020.142463] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/12/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
This study evaluated the interactions among total petroleum hydrocarbons (TPH), soil parameters, and microbial communities during the bio-electrokinetic (BIO-EK) remediation process. The study was conducted on a petroleum-contaminated saline-alkali soil inoculated with petroleum-degrading bacteria with a high saline-alkali resistance. The results showed that the degradation of TPH was better explained by second-order kinetics, and the efficacy and sustainability of the BIO-EK were closely related to soil micro-environmental factors and microbial community structures. During a 98-d remediation process, the removal rate of TPH was highest in the first 35 d, and then decreased gradually in the later period, which was concurrent with changes in the soil physicochemical properties (conductivity, inorganic ions, pH, moisture, and temperature) and subsequent shifts in the microbial community structures. According to the redundancy analysis (RDA), TPH, soil temperature, and electric conductivity, as well as SO42-, Cl-, and K+ played a better role in explaining the changes in the microbial community at 0-21 d. However, pH and NO3- better explained the changes in the microbial community at 63-98 d. In particular, the dominant genera, Marinobacter and Bacillus, showed a positive correlation with TPH, conductivity, and SO42-, Cl-, and K+, but a negative relationship with pH and NO3. Rhodococcus was positively correlated with soil temperature. The efficacy and sustainability of the BIO-EK remediation process is likely to be improved by controlling these properties.
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Affiliation(s)
- Ruijuan Fan
- College of Biological Science & Engineering, North Minzu University, Yinchuan 750021, China; Ningxia Key Laboratory for the Development and Application of Microbial Resources in Extreme Environments, North Minzu University, Yinchuan 750021, China.
| | - Wenping Ma
- College of Biological Science & Engineering, North Minzu University, Yinchuan 750021, China
| | - Hanlei Zhang
- College of Biological Science & Engineering, North Minzu University, Yinchuan 750021, China
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Li G, Wang S, Gai Y, Liu X, Lai Q, Shao Z. Marinobacter changyiensis, sp. nov., isolated from offshore sediment. Int J Syst Evol Microbiol 2020; 70:3004-3011. [PMID: 32320379 DOI: 10.1099/ijsem.0.004118] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An aerobic, Gram-stain-negative bacterium, designated CLL7-20T, was isolated from a marine sediment sample from offshore of Changyi, Shandong Province, China. Cells of strain CLL7-20T were rod-shaped, motile with one or more polar flagella, and grew optimally at pH 7.0, at 28 °C and with 3 % (w/v) NaCl. The principal fatty acids of strain CLL7-20T were C16 : 0 and summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c). The main polar lipids of strain CLL7-20T were phosphatidylethanolamine (PE), phosphatidylglycerol (PG), diphosphatidylglycerol (DPG) and an unidentified aminolipid (AL). Strain CLL7-20T contained Q-9 as the major respiratory quinone. The G+C content of its genomic DNA was 56.2 mol%. Phylogenetically, strain CLL7-20T branched within the genus Marinobacter, with M. daqiaonensis YCSA40T being its closest phylogenetic relative (96.7 % 16S rRNA gene sequence similarity), followed by M. sediminum R65T (96.6 %). Average nucleotide identity and in silico DNA-DNA hybridization values between strain CLL7-20T and the closest related reference strains were 73.2% and 19.8 %, respectively. On the basis of its phenotypic, phylogenetic and chemotaxonomic characteristics, we suggest that strain CLL7-20T (=MCCC 1A14855T=KCTC 72664T) is the type strain of a novel species in the genus Marinobacter, for which the name Marinobacter changyiensis sp. nov. is proposed. Based on the genomic analysis, siderophore genes were found from strain CLL7-20T, which indicate its potential as a promising alternative to chemical fertilizers in iron-limitated environments such as saline soils.
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Affiliation(s)
- Guangyu Li
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, PR China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen, PR China
| | - Shanshan Wang
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen, PR China
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, PR China
| | - Yingbao Gai
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen, PR China
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, PR China
| | - Xiupian Liu
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen, PR China
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, PR China
| | - Qiliang Lai
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen, PR China
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, PR China
| | - Zongze Shao
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, PR China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen, PR China
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Zhou M, Dong B, Shao Z. Complete genome sequence of Marinobacter sp. LQ44, a haloalkaliphilic phenol-degrading bacterium isolated from a deep-sea hydrothermal vent. Mar Genomics 2020. [DOI: 10.1016/j.margen.2019.100697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Genomic and phenotypic insights point to diverse ecological strategies by facultative anaerobes obtained from subsurface coal seams. Sci Rep 2019; 9:16186. [PMID: 31700097 PMCID: PMC6838118 DOI: 10.1038/s41598-019-52846-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 09/04/2019] [Indexed: 02/07/2023] Open
Abstract
Microbes in subsurface coal seams are responsible for the conversion of the organic matter in coal to methane, resulting in vast reserves of coal seam gas. This process is important from both environmental and economic perspectives as coal seam gas is rapidly becoming a popular fuel source worldwide and is a less carbon intensive fuel than coal. Despite the importance of this process, little is known about the roles of individual bacterial taxa in the microbial communities carrying out this process. Of particular interest is the role of members of the genus Pseudomonas, a typically aerobic taxa which is ubiquitous in coal seam microbial communities worldwide and which has been shown to be abundant at early time points in studies of ecological succession on coal. The current study performed aerobic isolations of coal seam microbial taxa generating ten facultative anaerobic isolates from three coal seam formation waters across eastern Australia. Subsequent genomic sequencing and phenotypic analysis revealed a range of ecological strategies and roles for these facultative anaerobes in biomass recycling, suggesting that this group of organisms is involved in the degradation of accumulated biomass in coal seams, funnelling nutrients back into the microbial communities degrading coal to methane.
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12
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Zhang Y, Zhong XC, Xu W, Lu DC, Zhao JX, Du ZJ. Marinobacter vulgaris sp. nov., a moderately halophilic bacterium isolated from a marine solar saltern. Int J Syst Evol Microbiol 2019; 70:450-456. [PMID: 31592762 DOI: 10.1099/ijsem.0.003774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
A facultatively anaerobic, Gram-stain-negative and non-gliding bacterium, designated F01T, was isolated from marine solar saltern in Weihai, PR China. Cells of F01T were 0.2-0.4 µm wide and 1.4-4.1 µm long, weakly catalase-positive and oxidase-negative. Growth of F01T was determined to occur at 4-40 °C (optimum, 33-37 °C), pH 6.5-8.5 (optimum, 7.0-8.0), and with 0.5-18.0 % (w/v) NaCl (optimum, 3.0-6.0 %). The 16S rRNA gene sequence analysis indicated that F01T represented a member of the genus Marinobacter within the family Alteromonadaceae. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the isolate was most closely related to Marinobacter algicola DSM 16394T, with a sequence similarity of 97.5 %. The DNA G+C content of the isolate was 57.6 mol%. The major respiratory quinone of F01T was ubiquinone-9 (Q-9) and the major fatty acids were anteiso-C15 : 0, C16 : 0 and C18 : 1ω9c. The major polar lipids were phosphoaminolipid, phosphatidylglycerol and phosphatidylethanolamine. On the basis of the results of the phylogenetic analysis and phenotypic properties, it is concluded that F01T can be considered to represent a novel species in the genus Marinobacter, for which the name Marinobacter vulgaris sp. nov. is proposed. The type strain is F01T (=MCCC 1H00290T=KCTC 52700T).
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Affiliation(s)
- Yu Zhang
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Xian-Chun Zhong
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Wei Xu
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - De-Chen Lu
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Jin-Xin Zhao
- Department of Microbiology, Infection and Immunity Program, Monash Biomedicine Discovery Institute and Monash University, Melbourne 3800, Australia
| | - Zong-Jun Du
- College of Marine Science, Shandong University, Weihai 264209, PR China
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Liu Q, Xamxidin M, Sun C, Cheng H, Meng FX, Wu YH, Wang CS, Xu XW. Marinobacter fuscus sp. nov., a marine bacterium of Gammaproteobacteria isolated from surface seawater. Int J Syst Evol Microbiol 2018; 68:3156-3162. [DOI: 10.1099/ijsem.0.002956] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Qian Liu
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
| | - Maripat Xamxidin
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
| | - Cong Sun
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
- 2College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Hong Cheng
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
| | - Fan-Xu Meng
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
| | - Yue-Hong Wu
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
| | - Chun-Sheng Wang
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
| | - Xue-Wei Xu
- 1Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
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Zhu M, Wang M, Jiang Y, You S, Zhao G, Liu Y, Yang Q, Liu Q, Liu Z, Gong Z, Shao H. Isolation and Complete Genome Sequence of a Novel Marinobacter Phage B23. Curr Microbiol 2018; 75:1619-1625. [PMID: 30218176 DOI: 10.1007/s00284-018-1568-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 09/07/2018] [Indexed: 12/11/2022]
Abstract
We used the double-agar layer method to isolate a novel Marinobacter marina bacteriophage, B23, from the surface water sample of the Bohai sea of China. There is some work to better understand the phage. The result of transmission electron microscopy revealed that B23 belongs to the family Siphoviridae with a head of 80 nm in diameter and a tail of 230 nm. Microbiological characterization evidenced that phage B23 is stable at the temperatures from - 25 to 60 °C, and showed vigorous vitality at pH between 4.0 and 12.0. One-step growth experiment showed that it had a longer latent period and higher lysis efficiency. Furthermore, the complete genome of B23 was sequenced and analyzed, which consists of a 35132 bp DNA with a G + C content of 59.8% and 50 putative open reading frames. The genome was divided into five parts, consisting of DNA replication and regulation, phage packaging, phage structure, host lysis and hypothetical protein.
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Affiliation(s)
- Min Zhu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Min Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China. .,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China. .,Key Lab of Polar Oceanography and Global Ocean Change, Ocean University of China, Qingdao, 266003, China.
| | - Yong Jiang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China. .,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China. .,Key Lab of Polar Oceanography and Global Ocean Change, Ocean University of China, Qingdao, 266003, China.
| | - Siyuan You
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Guihua Zhao
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yundan Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Qingwei Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Qian Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Zhaoyang Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Zheng Gong
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Hongbing Shao
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
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15
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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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Han JR, Ling SK, Yu WN, Chen GJ, Du ZJ. Marinobacter salexigens sp. nov., isolated from marine sediment. Int J Syst Evol Microbiol 2017; 67:4595-4600. [PMID: 28945532 DOI: 10.1099/ijsem.0.002337] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel bacterium, designated as strain HJR7T, was isolated from a marine sediment sample collected from the coastal area of Weihai, China (121° 57' E, 37° 29' N). Cells were Gram-stain-negative, facultative anaerobic, non-motile and rod-shaped. The temperature, pH and NaCl ranges for growth were determined as 4-40 °C, pH 6.5-9.5 and 0.5-15.0 % (w/v), respectively. Phylogenetic analysis based on the 16S rRNA gene sequences indicated that strain HJR7T belongs to the genus Marinobacter in the family Alteromonadaceae. The most closely related species were Marinobacter aromaticivorans (97.6 % 16S rRNA gene sequence similarity) and Marinobacter maritimus (97.3 % similarity). Ubiquinone 9 (Q-9) was the only respiratory quinone detected in strain HJR7T. The major fatty acids of strain HJR7T were C12 : 0, C16 : 0, C16 : 0 N alcohol, C18 : 1ω9c and C18 : 3ω6, 9, 12c. The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine, and an unidentified phospholipid. The DNA G+C content of strain HJR7T was 53.7 mol%. On the basis of phylogenetic, genotypic, phenotypic, and chemotaxonomic analyses, strain HJR7T represents a novel species within the genus Marinobacter, for which the name Marinobacter salexigens sp. nov. is proposed. The type strain is HJR7T (=KCTC 52545T=MCCC 1H00176T).
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Affiliation(s)
- Ji-Ru Han
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Si-Kai Ling
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Wen-Nan Yu
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Guan-Jun Chen
- College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Zong-Jun Du
- College of Marine Science, Shandong University, Weihai 264209, PR China.,Joint Research Laboratory for Microbial Oceanography, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China
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Kim JO, Lee HJ, Han SI, Whang KS. Marinobacter halotolerans sp. nov., a halophilic bacterium isolated from a saltern crystallizing pond. Int J Syst Evol Microbiol 2016; 67:460-465. [PMID: 27902258 DOI: 10.1099/ijsem.0.001653] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, moderately halophilic, motile bacterium, designated strain CP12T, was isolated from a crystallizing pond of a saltern of the Yellow Sea in Korea. Cells of strain CP12T were non-spore-forming rods and produced whitish-yellow colonies. Growth was observed at 10-37 °C (optimum 37 °C), at pH 6.0-9.0 (optimum pH 7.0), and in the presence of 0.5-20 % (w/v) NaCl (optimum 3 %). Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain CP12T was closely related to Marinobacter flavimaris SW-145T (98.4 % 16S rRNA gene sequence similarity), Marinobacter algicola DG893T (98.2 %), Marinobacter adhaerens HP15T (98.2 %), Marinobacter salsuginis SD-14BT (97.9 %), Marinobacter salarius R9SW1T (97.6 %) and Marinobacter lipolyticus SM19T (97.1 %). DNA-DNA hybridization studies showed values lower than 18.6 % between strain CP12T and any of these species. The predominant respiratory isoprenoid quinone was ubiquinone-9 and the major cellular fatty acids of strain CP12T were C16 : 0, C12 : 0 3-OH, C12 : 0, Summed feature 3, C16 : 0 10-methyl and C18 : 1ω9c. On the basis of phenotypic properties, and phylogenetic and chemotaxonomic data, it is evident that strain CP12T represents a novel species of the genus Marinobacter, for which the name Marinobacter halotolerans sp. nov. is proposed. The type strain is CP12T (=KACC 18381T=NBRC 110910T).
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Affiliation(s)
- Ju-Ok Kim
- Department of Microbial & Nano Materials, Mokwon University, Daejeon 302-729, Republic of Korea
| | - Hyo-Jin Lee
- Institute of Microbial Ecology & Resources, Mokwon University, Daejeon 302-729, Republic of Korea
| | - Song-Ih Han
- Department of Microbial & Nano Materials, Mokwon University, Daejeon 302-729, Republic of Korea
| | - Kyung-Sook Whang
- Institute of Microbial Ecology & Resources, Mokwon University, Daejeon 302-729, Republic of Korea.,Department of Microbial & Nano Materials, Mokwon University, Daejeon 302-729, Republic of Korea
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Halophiles: biology, adaptation, and their role in decontamination of hypersaline environments. World J Microbiol Biotechnol 2016; 32:135. [PMID: 27344438 DOI: 10.1007/s11274-016-2081-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/07/2016] [Indexed: 10/21/2022]
Abstract
The unique cellular enzymatic machinery of halophilic microbes allows them to thrive in extreme saline environments. That these microorganisms can prosper in hypersaline environments has been correlated with the elevated acidic amino acid content in their proteins, which increase the negative protein surface potential. Because these microorganisms effectively use hydrocarbons as their sole carbon and energy sources, they may prove to be valuable bioremediation agents for the treatment of saline effluents and hypersaline waters contaminated with toxic compounds that are resistant to degradation. This review highlights the various strategies adopted by halophiles to compensate for their saline surroundings and includes descriptions of recent studies that have used these microorganisms for bioremediation of environments contaminated by petroleum hydrocarbons. The known halotolerant dehalogenase-producing microbes, their dehalogenation mechanisms, and how their proteins are stabilized is also reviewed. In view of their robustness in saline environments, efforts to document their full potential regarding remediation of contaminated hypersaline ecosystems merits further exploration.
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Oren A, Garrity GM. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2015. [DOI: 10.1099/ijs.0.000317] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The purpose of this announcement is to effect the valid publication of the following effectively published new names and new combinations under the procedure described in the Bacteriological Code (1990 Revision). Authors and other individuals wishing to have new names and/or combinations included in future lists should send three copies of the pertinent reprint or photocopies thereof, or an electronic copy of the published paper to the IJSEM Editorial Office for confirmation that all of the other requirements for valid publication have been met. It is also a requirement of IJSEM and the ICSP that authors of new species, new subspecies and new combinations provide evidence that types are deposited in two recognized culture collections in two different countries. It should be noted that the date of valid publication of these new names and combinations is the date of publication of this list, not the date of the original publication of the names and combinations. The authors of the new names and combinations are as given below. Inclusion of a name on these lists validates the publication of the name and thereby makes it available in the nomenclature of prokaryotes. The inclusion of a name on this list is not to be construed as taxonomic acceptance of the taxon to which the name is applied. Indeed, some of these names may, in time, be shown to be synonyms, or the organisms may be transferred to another genus, thus necessitating the creation of a new combination.
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Affiliation(s)
- Aharon Oren
- The Institute of Life Sciences, The Hebrew University of Jerusalem, The Edmond J. Safra Campus, Givat Ram, 91904 Jerusalem, Israel
| | - George M. Garrity
- Department of Microbiology & Molecular Genetics, Biomedical Physical Sciences, Michigan State University, East Lansing, MI 48824-4320, USA
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