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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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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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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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Vaidya B, Kumar R, Korpole S, Tanuku NRS, Pinnaka AK. Marinobacter nitratireducens sp. nov., a halophilic and lipolytic bacterium isolated from coastal surface sea water. Int J Syst Evol Microbiol 2015; 65:2056-2063. [DOI: 10.1099/ijs.0.000218] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-negative, rod-shaped, motile bacterium, designated strain AK21T, was isolated from coastal surface sea water at Visakhapatnam, India. The strain was positive for oxidase, catalase, lipase, l-proline arylamidase and tyrosine arylamidase activities. The predominant fatty acids were C12:0, C12:0 3-OH, C16:0, C16:1ω9c, C18:1ω9c and summed feature 3 (C16:1ω7c and/or iso-C15:0 2-OH). The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, one unidentified aminophospholipid, two unidentified phospholipids and one unidentified lipid. Q-10 was the predominant respiratory quinone. The DNA G+C content of the strain was 54.6 mol%. 16S rRNA gene sequence analysis indicated that strain AK21T was a member of the genus Marinobacter and was closely related to Marinobacter xestospongiae, with pairwise sequence similarity of 97.2 % to the type strain, with similarity to other members of the genus of 94.0–96.8 %. The mean DNA–DNA relatedness of strain AK21T with M. xestospongiae JCM 17469T was 34.5 %, and relatedness with Marinobacter mobilis JCM 15154T was 40.5 %. Phylogenetic analysis showed that strain AK21T clustered with the type strains of M. xestospongiae and M. mobilis at distances of 2.9 and 2.8 % (97.1 and 97.2 % similarity), respectively. Based on the phenotypic characteristics and on phylogenetic inference, it appears that strain AK21T represents a novel species of the genus Marinobacter, for which the name Marinobacter nitratireducens sp. nov. is proposed. The type strain of Marinobacter nitratireducens is AK21T ( = MTCC 11704T = JCM 18428T).
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Affiliation(s)
- Bhumika Vaidya
- MTCC – Microbial Type Culture Collection & Gene Bank, CSIR – Institute of Microbial Technology, Chandigarh – 160036, India
| | - Ravinder Kumar
- MTCC – Microbial Type Culture Collection & Gene Bank, CSIR – Institute of Microbial Technology, Chandigarh – 160036, India
| | - Suresh Korpole
- MTCC – Microbial Type Culture Collection & Gene Bank, CSIR – Institute of Microbial Technology, Chandigarh – 160036, India
| | - Naga Radha Srinivas Tanuku
- CSIR – National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam – 530017, India
| | - Anil Kumar Pinnaka
- MTCC – Microbial Type Culture Collection & Gene Bank, CSIR – Institute of Microbial Technology, Chandigarh – 160036, India
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Zhong ZP, Liu Y, Liu HC, Wang F, Zhou YG, Liu ZP. Marinobacter halophilus sp. nov., a halophilic bacterium isolated from a salt lake. Int J Syst Evol Microbiol 2015; 65:2838-2845. [PMID: 25985830 DOI: 10.1099/ijs.0.000338] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-staining-negative bacterium, strain XCD-X12(T), was isolated from Xiaochaidan Lake, a salt lake (salinity 9.9%, w/w) in Qaidam basin, Qinghai Province, China. Its taxonomic position was determined by using a polyphasic approach. Cells of strain XCD-X12(T) were non-spore-forming rods, 0.4-0.7 μm wide, 2.1-3.2 μm long and motile with a single polar flagellum. Strain XCD-X12(T) was strictly aerobic and catalase- and oxidase-positive. Growth was observed in the presence of 0-20.0% (w/v) NaCl (optimum, 4.0-8.0%), at 4-35 °C (optimum, 30 °C) and at pH 6.5-10.5 (optimum, pH 8.5). It contained Q-9 as the predominant respiratory quinone. The major fatty acids (>10.0%) were C16 : 0, C16 : 1ω9c and C18 : 1ω9c. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two unknown phospholipids and an uncharacterized aminophospholipid. The DNA G+C content was 55.6 mol% (Tm). Phylogenetic trees based on 16S rRNA gene sequences showed that strain XCD-X12(T) was associated with the genus Marinobacter, and showed the highest 16S rRNA gene sequence similarity to Marinobacter hydrocarbonoclasticus ATCC 49840(T) (97.4%), M. vinifirmus FB1(T) (96.8%), M. excellens KMM 3809(T) (96.8%) and M. antarcticus ZS2-30(T) (96.7%). DNA-DNA relatedness of strain XCD-X12(T) to M. hydrocarbonoclasticus CGMCC 1.7683(T) was 34 ± 5%. Based on these data, it is concluded that strain XCD-X12(T) represents a novel species of the genus Marinobacter, for which the name Marinobacter halophilus sp. nov. is proposed. The type strain is XCD-X12(T) ( = CGMCC 1.12481(T)= JCM 30472(T)).
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Affiliation(s)
- Zhi-Ping Zhong
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ying Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Hong-Can Liu
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Fang Wang
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100089, PR China
| | - Yu-Guang Zhou
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Zhi-Pei Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
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Luo YJ, Xie BS, Lv XL, Cai M, Wang YN, Cui HL, Cai H, Wu XL. Marinobacter shengliensis sp. nov., a moderately halophilic bacterium isolated from oil-contaminated saline soil. Antonie van Leeuwenhoek 2015; 107:1085-94. [PMID: 25652339 DOI: 10.1007/s10482-015-0401-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 01/29/2015] [Indexed: 11/29/2022]
Abstract
Two moderately halophilic strains, designated SL013A34A2(T) and SL013A24A, were isolated from oil-contaminated saline soil from Shengli Oilfield, eastern China. Cells were found to be Gram-staining negative, aerobic, rod-shaped with a single polar flagellum. The isolates were found to grow at 10-40 °C (optimum 35 °C), pH 6.0-9.0 (optimum pH 8.0), and NaCl concentrations of 0.5-18.0 % (w/v) (optimum 3.0-6.0 NaCl). The 16S rRNA gene sequence analysis indicated that the isolates belong to the genus Marinobacter. Strain SL013A34A2(T) shares the highest 16S rRNA gene sequence similarities with strain SL013A24A (99.3 %), followed by M. hydrocarbonoclasticus CGMCC 1.7683(T) (97.8 %), M. vinifirmus CGMCC 1.7265(T) (97.8 %), and M. excellens KMM 3809(T) (97.4 %), respectively, but low similarities (93.8-96.4 %) with type strains of the other numbers of genus Marinobacter. DNA-DNA relatedness values of strain SL013A34A2(T) with strains SL013A24A, M. hydrocarbonoclasticus CGMCC 1.7683(T), M. vinifirmus CGMCC 1.7265(T) and M. excellens KMM 3809(T) were 88.7, 29.2, 33.4 and 29.4 %, respectively. The major fatty acids of strain SL013A34A2(T) were identified as C18:1 ω9c, C16:0, C12:03-OH, C12:0, C16:1 ω9c and 10-methyl C18:0. The major respiratory quinone of strain SL013A34A2(T) was found to be ubiquinone-9, and its predominant polar lipids were identified as diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and unidentified glycolipid. The genomic DNA G + C content was found to be 56.1 mol %. Based on the phenotypic, genetic and chemotaxonomic characteristics, these two isolates are representatives of a novel species of the genus Marinobacter, for which the name Marinobacter shengliensis sp. nov. is proposed. The type strain is SL013A34A2(T)(=LMG 27740(T) = CGMCC 1.12758(T)).
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Affiliation(s)
- Yi-Jing Luo
- College of Engineering, Peking University, Beijing, 100871, People's Republic of China
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Handley KM, Lloyd JR. Biogeochemical implications of the ubiquitous colonization of marine habitats and redox gradients by Marinobacter species. Front Microbiol 2013; 4:136. [PMID: 23734151 PMCID: PMC3660661 DOI: 10.3389/fmicb.2013.00136] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 05/07/2013] [Indexed: 11/30/2022] Open
Abstract
The Marinobacter genus comprises widespread marine bacteria, found in localities as diverse as the deep ocean, coastal seawater and sediment, hydrothermal settings, oceanic basalt, sea-ice, sand, solar salterns, and oil fields. Terrestrial sources include saline soil and wine-barrel-decalcification wastewater. The genus was designated in 1992 for the Gram-negative, hydrocarbon-degrading bacterium Marinobacter hydrocarbonoclasticus. Since then, a further 31 type strains have been designated. Nonetheless, the metabolic range of many Marinobacter species remains largely unexplored. Most species have been classified as aerobic heterotrophs, and assessed for limited anaerobic pathways (fermentation or nitrate reduction), whereas studies of low-temperature hydrothermal sediments, basalt at oceanic spreading centers, and phytoplankton have identified species that possess a respiratory repertoire with significant biogeochemical implications. Notable physiological traits include nitrate-dependent Fe(II)-oxidation, arsenic and fumarate redox cycling, and Mn(II) oxidation. There is also evidence for Fe(III) reduction, and metal(loid) detoxification. Considering the ubiquity and metabolic capabilities of the genus, Marinobacter species may perform an important and underestimated role in the biogeochemical cycling of organics and metals in varied marine habitats, and spanning aerobic-to-anoxic redox gradients.
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Affiliation(s)
- Kim M. Handley
- Searle Chemistry Laboratory, Computation Institute, University of ChicagoChicago, IL, USA
- Computing, Environment and Life Sciences, Argonne National LaboratoryChicago, IL, USA
| | - Jonathan R. Lloyd
- School of Earth, Atmospheric, and Environmental Sciences, University of ManchesterManchester, UK
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Marinobacter nanhaiticus sp. nov., polycyclic aromatic hydrocarbon-degrading bacterium isolated from the sediment of the South China Sea. Antonie van Leeuwenhoek 2012; 103:485-91. [DOI: 10.1007/s10482-012-9830-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 10/09/2012] [Indexed: 10/27/2022]
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Lee OO, Lai PY, Wu HX, Zhou XJ, Miao L, Wang H, Qian PY. Marinobacter xestospongiae sp. nov., isolated from the marine sponge Xestospongia testudinaria collected from the Red Sea. Int J Syst Evol Microbiol 2011; 62:1980-1985. [PMID: 22003037 DOI: 10.1099/ijs.0.028811-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-negative, catalase- and oxidase-positive, non-sporulating, rod-shaped and slightly halophilic bacterial strain, designated UST090418-1611(T), was isolated from the marine sponge Xestospongia testudinaria collected from the Red Sea coast of Saudi Arabia. Phylogenetic trees based on the 16S rRNA gene sequence placed strain UST090418-1611(T) in the family Alteromonadaceae with the closest relationship to the genus Marinobacter. The 16S rRNA gene sequence similarity between the strain and the type strains of recognized Marinobacter species ranged from 92.9 to 98.3%. Although strain UST090418-1611(T) shared high 16S rRNA gene sequence similarity with Marinobacter mobilis CN46(T), M. zhejiangensis CN74(T) and M. sediminum R65(T) (98.3, 97.4 and 97.3%, respectively), the relatedness of the strain to these three strains in DNA-DNA hybridization was only 58, 56 and 33%, respectively, supporting the novelty of the strain. In contrast to most strains in the genus Marinobacter, strain UST090418-1611(T) tolerated only 6% (w/v) NaCl, and optimal growth occurred at 2.0% (w/v) NaCl, pH 7.0-8.0 and 28-36 °C. The predominant cellular fatty acids were C(12:0) 3-OH, C(16:0), C(12:0) and summed feature 3 (C(16:1)ω6c and/or C(16:1)ω7c). The genomic DNA G+C content was 57.1 mol%. Based on the physiological, phylogenetic and chemotaxonomic characteristics presented in this study, we suggest that the strain represents a novel species in the genus Marinobacter, for which the name Marinobacter xestospongiae sp. nov. is proposed, with UST090418-1611(T) ( = JCM 17469(T) = NRRL B-59512(T)) as the type strain.
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Affiliation(s)
- On On Lee
- KAUST Global Partnership Program, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - Pok Yui Lai
- KAUST Global Partnership Program, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - Hui-Xian Wu
- College of Fisheries and Life Science, Shanghai Ocean University, Lingang New City, Shanghai, PR China.,KAUST Global Partnership Program, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - Xiao-Jian Zhou
- Institute of Marine Science and Technology, Yangzhou University No. 196, West Huayang Street, Yangzhou City, Jiangsu Province, PR China
| | - Li Miao
- Institute of Marine Science and Technology, Yangzhou University No. 196, West Huayang Street, Yangzhou City, Jiangsu Province, PR China
| | - Hao Wang
- KAUST Global Partnership Program, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - Pei-Yuan Qian
- KAUST Global Partnership Program, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
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Liu C, Chen CX, Zhang XY, Yu Y, Liu A, Li GW, Chen XL, Chen B, Zhou BC, Zhang YZ. Marinobacter antarcticus sp. nov., a halotolerant bacterium isolated from Antarctic intertidal sandy sediment. Int J Syst Evol Microbiol 2011; 62:1838-1844. [PMID: 21984673 DOI: 10.1099/ijs.0.035774-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-staining-negative, aerobic, motile, oxidase- and catalase-positive, rod-shaped strain, designated ZS2-30(T), was isolated from Antarctic intertidal sandy sediment. The strain grew at 4-35 °C (optimum, 25 °C) and in 0-25% (w/v) NaCl (optimum, 3.0-4.0%). It could reduce nitrate to nitrite and hydrolyse Tween 80. The predominant cellular fatty acids of strain ZS2-30(T) were summed feature 3 (C(16:1)ω7c and/or C(16:1)ω6c), C(16:0), C(18:1)ω9c, C(16:1)ω9c, C(12:0) 3-OH and C(12:0). The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and an unidentified aminophospholipid. The genomic DNA G+C content of strain ZS2-30(T) was 55.8 mol%. Analyses of 16S rRNA gene sequences revealed that strain ZS2-30(T) was affiliated with the genus Marinobacter. It showed highest 16S rRNA gene sequence similarities to the type strains of three species of the genus Marinobacter, namely Marinobacter maritimus (98.3%), Marinobacter psychrophilus (98.1%) and Marinobacter goseongensis (97.1%), but the DNA-DNA relatedness values between strain ZS2-30(T) and the above three species were all lower than 45%. Moreover, strain ZS2-30(T) could be distinguished from closely related species of the genus Marinobacter by various phenotypic properties. Based on this taxonomic study using a polyphasic approach, strain ZS2-30(T) is considered to represent a novel species in the genus Marinobacter, for which the name Marinobacter antarcticus sp. nov. is proposed. The type strain of Marinobacter antarcticus is ZS2-30(T) ( = CGMCC 1.10835(T) = KCTC 23684(T)).
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Affiliation(s)
- Chang Liu
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Chun-Xiao Chen
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Xi-Ying Zhang
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Yong Yu
- SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, PR China
| | - Ang Liu
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Guo-Wei Li
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Xiu-Lan Chen
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Bo Chen
- SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, PR China
| | - Bai-Cheng Zhou
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Yu-Zhong Zhang
- The State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
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