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Nedashkovskaya OI, Otstavnykh NY, Kim SG, Kukhlevskiy AD, Zhukova NV, Isaeva MP. Algicella marina gen. nov., sp. nov., a novel marine bacterium isolated from a Pacific red alga. Arch Microbiol 2022; 204:487. [PMID: 35835927 DOI: 10.1007/s00203-022-03091-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/20/2022] [Indexed: 11/02/2022]
Abstract
A novel Gram-staining negative, strictly aerobic, rod-shaped, and non-motile bacterium, designated strain 9Alg 56T, was isolated from the red alga Tichocarpus crinitus. The phylogenetic analysis based on 16S rRNA gene sequences placed the novel strain within the family Rhodobacteraceae, the order Rhodobacterales, the class Alphaproteobacteria, the phylum Pseudomonadota. The nearest neighbors of the new strain were Pontivivens insulae KCTC 42458T, Oceanibium sediminis KCTC 62076T, Halovulum dunhuangense YYQ-30T and Monaibacterium marinum C7T with 16S rRNA gene sequence similarity of 94.7, 94.4%, 93.1 and 92.7%, respectively. The AAI/ANI/dDDH values between 9Alg 56T and the five species of the closest genera (Pontivivens, Oceanibium, Halovulum, Monaibacterium, and 'Oceanomicrobium') were 58.63-63.91%/ 75.91-77.37%/ 19.3-20.4%. The prevalent fatty acids of strain 9Alg 56T were C18:1 ω7c, C18:0 and C14:0 3-OH. The polar lipid profile consisted of phosphatidylethanolamine, phosphatidylglycerol, phosphatidic acid, phosphatidylcholine, and two unidentified lipids. The DNA G+C content of strain 9Alg 56T was 61.5 mol%. A combination of the genotypic and phenotypic data showed that the algal isolate represents a novel genus and species, for which the name Algicella marina gen. nov., sp. nov. is proposed. The type strain is 9Alg 56T (= KCTC 72005T = KMM 6775T).
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Affiliation(s)
- Olga I Nedashkovskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of the Far-Eastern Branch, Russian Academy of Sciences, Prospekt 100 Let Vladivostoku 159, Vladivostok, Russia, 690022.
| | - Nadezhda Y Otstavnykh
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of the Far-Eastern Branch, Russian Academy of Sciences, Prospekt 100 Let Vladivostoku 159, Vladivostok, Russia, 690022
| | - Song-Gun Kim
- Korean Collection for Type Cultures, Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeollabuk-do, 56212, Republic of Korea
| | - Andrey D Kukhlevskiy
- A.V. Zhirmunsky National Scientific Center of Marine Biology of the Far-Eastern Branch, Russian Academy of Sciences, Pal'chevskogo St. 17, Vladivostok, Russia, 690032.,Far-Eastern Federal University, Sukhanova St. 8, Vladivostok, Russia, 690950
| | - Natalia V Zhukova
- A.V. Zhirmunsky National Scientific Center of Marine Biology of the Far-Eastern Branch, Russian Academy of Sciences, Pal'chevskogo St. 17, Vladivostok, Russia, 690032
| | - Marina P Isaeva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of the Far-Eastern Branch, Russian Academy of Sciences, Prospekt 100 Let Vladivostoku 159, Vladivostok, Russia, 690022.
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Pontibrevibacter nitratireducens gen. nov., sp. nov., a member of the family Rhodobacteraceae isolated from seawater of the Indian Ocean and intertidal zone. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005341] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two Gram-stain-negative, facultatively anaerobic, non-motile, rod-shaped bacteria, strains h42T and ALG8, were isolated individually from the Indian Ocean and intertidal zone of Zhoushan, China. The results of 16S rRNA gene sequence analysis showed that the sequence similarity between strains h42T and ALG8 was 99.7 %, and the closest related strains were
Monaibacterium marinum
C7T (97.77 and 97.62 %) and
Pontivivens insulae
GYSW-23T (95.31 and 95.45 %). Phylogenetic analysis based on 16S rRNA gene sequences shows that these two novel strains belong to a distinct new lineage of the family
Rhodobacteraceae
in the order
Rhodobacterales
. The average nucleotide identity and in silico DNA–DNA hybridization values between the two novel strains and
M. marinum
C7T and
P. insulae
GYSW-23T were 72.73–78.15 % and 19.70–20.80 %, respectively. The DNA G+C content of strains h42T and ALG8 was 62.36 % and 62.17 mol %. The major fatty acids (>10 %) in strain h42T were C18 : 0, C19 : 0 cyclo ω8c and summed feature 8 (C18 : 1
ω6c and/or C18 : 1
ω7c), and in strain ALG8 were C19 : 0 cyclo ω8c and summed feature 8 (C18 : 1ω6c and/or C18 : 1
ω7c). The predominant isoprenoid ubiquinone of the two novel strains was Q-10; their major polar lipids were identified as diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, two unidentified glycolipids, an unidentified aminoglycolipid, an unidentified phospholipid and an unidentified lipid. Based on the results of the morphological, physiological, chemotaxonomic and phylogenetic analysis of these two strains, a novel species of a new genus in the family
Rhodobacteraceae
is proposed, named as Pontibrevibacter nitratireducens gen. nov., sp. nov. The type strain and non-type strain of P. nitratireducens are h42T (=KCTC 72875T=CGMCC 1.17849T=MCCC 1K04735T) and ALG8 (=KCTC 82194=MCCC 1K04733).
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Roseitranquillus sediminis gen. nov., sp. nov. a novel genus and species of the family Rhodobacteraceae, isolated from sediment of an Arctic fjord. Antonie van Leeuwenhoek 2021; 114:2147-2162. [PMID: 34643814 DOI: 10.1007/s10482-021-01669-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 09/29/2021] [Indexed: 10/20/2022]
Abstract
A Gram-negative, aerobic, non-motile, oxidase-positive, catalase-positive, rod-shaped bacterium, designated strain MCCB 386T was isolated from sediment samples collected from Kongsfjorden, an Arctic fjord. The strain MCCB 386T showed growth at 4-37 °C (optimum 27°C) in the presence of 1-8% NaCl (w/v, optimum 3.5%) and at pH 6.0-8.0 (optimum pH 7.0). The major fatty acids were C18:1ω7c (54.0%) and 11-methyl C18:1ω7c (22.6%). The dominant respiratory quinone was Q-10. The major polar lipids comprised of phosphatidylcholine (PC), diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), phosphoglycolipid (PGL), one unidentified aminolipid, two glycolipids and two unidentified lipids. The genomic G+C content of the strain MCCB 386T was 68.1 mol%. The 16 S rRNA gene sequences based phylogenetic analysis of MCCB 386T showed that Psychromarinibacter halotolerans YBW34T (95.88%) is the most closely related species. In addition, overall genome relatedness indices (OGRI) of MCCB 386T with closely related strains were lower than threshold level for species and genus delineation. The analysis of Biosynthetic Gene clusters (BGCs) revealed the potential of this strain for production of novel bioactive secondary metabolites. As per polyphasic taxonomic characterisation, strain MCCB 386T represents a novel species of a novel genus for which the name Roseitranquillus sediminis gen. nov., sp. nov. is suggested. The type strain of the species is MCCB 386T (= JCM 33,538T= KACC 21,531T).
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Wang Z, Du RB, Sun QL, Sun YY, Zhang J, Tang YZ. Pontivivens ytuae sp. nov., isolated from deep sea sediment of the Mariana Trench. Int J Syst Evol Microbiol 2021; 71. [PMID: 34520339 DOI: 10.1099/ijsem.0.004967] [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: 10/20/2022] Open
Abstract
A Gram-stain-negative, light pink-coloured, rod-shaped, flagellated and facultative anaerobic bacterial strain, designated MT2928T, was isolated from deep-sea sediment collected from the Mariana Trench. Growth of strain MT2928T occurred optimally at 28 °C, pH 8.0-9.0 and in the presence of 1.0-2.0 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain MT2928T belongs to the genus Pontivivens and has the highest sequence similarity to Pontivivens insulae GYSW-23T (96.6 %). Genomic analysis indicated that strain MT2928T contains a circular chromosome of 4 199 362 bp with G+C content of 67.2 mol%. The strain did not produce bacteriochlorophyll a, but produced carotenoid. The predominant respiratory quinone of MT2928T was ubiquinone-10. The polar lipids of MT2928T contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, two unidentified lipids and two unidentified phospholipids. The major fatty acids of strain MT2928T contained summed feature 8 (C18 : 1 ω7c or/and C18 : 1 ω6c), C18 : 0 and summed feature 2 (iso-C16 : 1 I and/or C14 : 0 3-OH). On the basis of phylogenetic, physiological, biochemical and other phenotypic properties, strain MT2928T represents a novel species of the genus Pontivivens, and the name Pontivivens ytuae sp. nov. is proposed with the type species MT2928T (=MCCC 1K05575T=JCM 34320T).
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Affiliation(s)
- Zhen Wang
- School of Ocean, Yantai University, Yantai, PR China
| | - Rong-Bin Du
- School of Ocean, Yantai University, Yantai, PR China
| | - Qing-Lei Sun
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, PR China
| | - Yuan-Yuan Sun
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, PR China
| | - Jian Zhang
- School of Ocean, Yantai University, Yantai, PR China
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Park J, Kim YS, Kim SJ, Kim SE, Jung HK, Yu MJ, Jeon YJ, Kim KH. Pikeienuella piscinae gen. nov., sp. nov., a novel genus in the family Rhodobacteraceae. J Microbiol 2021; 59:546-551. [PMID: 33877579 DOI: 10.1007/s12275-021-0678-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 11/26/2022]
Abstract
A novel bacterium, designated strain RR4-56T, was isolated from a biofilter of a seawater recirculating aquaculture system. The 16S rRNA gene sequence analysis showed that the isolate was closely related to Halovulum dunhuangense YYQ-30T (92.6%), Albimonas donghaensis DS2T (91.3%), Pontivivens insulae GYSW-23T (91.3%), and Monaibacterium marinum C7T (90.9%), belonging to the family Rhodobacteraceae. The strain was aerobic, Gram-negative, rod-shaped, oxidase-positive, and catalase-negative. Its optimum temperature, pH, and salinity for growth were 25-30°C, pH 8.5, and 2-3% NaCl (w/v), respectively. Its growth occurred at 15-35°C, pH 5.0-9.5, and 0-7% NaCl (w/v). It contained ubiquinone-10 (Q-10), a respiratory quinone, and the major cellular fatty acids were 11-methyl C18:1 ω7c (31.9%), C18:1 ω6c (30.4%), and C19:0 cyclo ω8c (16.1%). The polar lipids present in the strain were phosphatidylglycerol, an unidentified phospholipid, and an unidentified aminolipid. The strain had one 4,373,045 bp circular chromosome with G + C contents of 65.9 mol% including 4,169 genes, 4,118 coding sequences (CDSs), 3 rRNAs, and 45 tRNAs. Genome annotation predicted some gene clusters related to the degradation of several types of organic matter such as protocatechuate, catechol, and phthalate. Based on the polyphasic characteristics, RR4-56T represents a novel genus and species in the family Rhodobacteraceae, for which the name Pikeienuella piscinae gen. nov., sp. nov. was proposed. The type strain is RR4-56T (= KCTC 52648T = DSM 107918T).
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Affiliation(s)
- Jeeeun Park
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea
- School of Marine and Fisheries Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Young-Sam Kim
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Seong-Jin Kim
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Sang-Eon Kim
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Hyun-Kyoung Jung
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea
- School of Marine and Fisheries Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Min-Ju Yu
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Young Jae Jeon
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea
- School of Marine and Fisheries Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Kyoung-Ho Kim
- Department of Microbiology, Pukyong National University, Busan, 48513, Republic of Korea.
- School of Marine and Fisheries Life Science, Pukyong National University, Busan, 48513, Republic of Korea.
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Dai D, Li Y, He W, Qin F, Zheng J, Sun M, Zhang D. Oceanomicrobium pacificus gen. nov., sp. nov., a member of the family Rhodobacteraceae isolated from seawater of tropical western Pacific. Antonie van Leeuwenhoek 2021; 114:303-311. [PMID: 33548023 DOI: 10.1007/s10482-021-01523-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 01/19/2021] [Indexed: 12/11/2022]
Abstract
The Gram-stain-negative, aerobic, ovoid or rod-shaped bacterial strain, designated KN286T, was isolated from seawater of tropical western Pacific. Growth occurred between 15 and 40 °C (optimally at 30-35 °C), pH 6-9 (optimally at 7.0) and in the presence of 0.5-5.0% (w/v) NaCl (optimally between 2.0 and 3.0%). Strain KN286T contained Q-10 as the major respiratory quinone. The polar lipid profile contained phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, three phospholipids, three glycolipids, and three unidentified polar lipids. The predominant cellular fatty acid was summed feature 8 (composed of C18:1ω7c and/or C18:1ω6c). Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain KN286T was a member of the family Rhodobacteraceae and formed a distinct lineage. Strain KN286T has a genome size of 3.25 Mbp and a G + C content of 65.0 mol%. It encoded with some genes for carbohydrate-active enzymes, such as GH20 (Glycoside Hydrolase Family 20) and PL1 (Polysaccharide Lyase Family 1) and did not encode with a set of genes for reduction of nitrate to nitrite (nitrate reductase gamma subunit, respiratory nitrate reductase alpha N-terminal and respiratory nitrate reductase beta C-terminal). Based on phylogenetic analyses with single-copy orthologous clusters, low isDDH value (19.6%), low ANI (72.4%) and low AAI (65.7%) results, differential chemotaxonomic and physiological properties, strain KN286T represents a novel species of a novel genus of the family Rhodobacteraceae, for which the name Oceanomicrobium pacificus gen. nov., sp. nov. is proposed. The type strain of Oceanomicrobium pacificus is KN286T (=CGMCC 1.17118T = KCTC 72430T).
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Affiliation(s)
- Dadong Dai
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Yangjie Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Wenxuan He
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fang Qin
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinshui Zheng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Ming Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.
| | - Dechao Zhang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China. .,Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China.
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Ruan CJ, Wang J, Zheng XW, Song L, Zhu YX, Huang Y, Lu ZJ, Du WB, Huang L, Dai X. Halovulum marinum sp. nov., isolated from deep-sea water of the Indian Ocean, and emended description of the genus Halovulum. Int J Syst Evol Microbiol 2020; 70:4523-4530. [PMID: 32589573 DOI: 10.1099/ijsem.0.004307] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-negative, aerobic, motile by peritrichous flagella, oval to rod-shaped bacterium, designated strain 2CG4T, was isolated from a deep-sea water sample collected from the Northwest Indian Ocean. The results of phylogenetic analysis of both 16S rRNA gene and RpoC protein sequences indicated that this strain was affiliated with the genus Halovulum in the Amaricoccus clade of the family Rhodobacteraceae of the class Alphaproteobacteria, sharing 95.3 % similarity at the 16S rRNA gene sequence level with the type strain of Halovulum dunhuangense YYQ-30T, the only species in the genus Halovulum. The predominant fatty acids (>10 %) of 2CG4T were summed feature 8 (C18 : 1ω7c and/ or C18 : 1ω6c; 61.1 %) and cyclo-C19 : 0ω8c (15.6 %). The polar lipids of 2CG4T were phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine and sulfoquinovosyldiacylglycerol. The only isoprenoid quinone of 2CG4T was ubiquinone-10. The DNA G+C content of 2CG4T was determined to be 69.4 %. The central gene pufLM for the photosynthetic reaction was not detected. No growth occurred for 2CG4T in the absence of NaCl. On the basis of these data, it is concluded that the 2CG4T represents a novel species of the genus Halovulum, for which the name Halovulum marinum sp. nov. is proposed. The type strain is 2CG4T (=CGMCC 1.16468T=JCM 32611T).
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Affiliation(s)
- Chu-Jin Ruan
- Present address: Currently at China Agricultural University, Beijing 100193, PR China.,College of Life Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Jian Wang
- College of Life Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Xiao-Wei Zheng
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Lei Song
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Ya-Xin Zhu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Ying Huang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Zu-Jun Lu
- College of Life Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Wen-Bin Du
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, PR China.,State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Li Huang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xin Dai
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China
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Chang YQ, Meng X, Du ZZ, Du ZJ. Oceanibium sediminis gen. nov., sp. nov., isolated from marine sediment. Int J Syst Evol Microbiol 2019; 69:249-254. [DOI: 10.1099/ijsem.0.003139] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Ya-Qi Chang
- 1College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Xue Meng
- 1College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Zhao-Zhong Du
- 1College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Zong-Jun Du
- 2State key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, PR China
- 1College of Marine Science, Shandong University, Weihai, 264209, PR China
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Pseudopontivivens aestuariicola gen. nov., sp. nov., a Novel Bacterium of the Class Alphaproteobacteria Isolated from a Tidal Flat. Curr Microbiol 2018; 75:1516-1522. [PMID: 30128840 DOI: 10.1007/s00284-018-1553-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 08/12/2018] [Indexed: 10/28/2022]
Abstract
A Gram-stain-negative, non-motile and coccoid, ovoid or rod-shaped bacterial strain, OITF-57T, which was isolated from a tidal flat sediment in South Korea, was characterized taxonomically. Strain OITF-57T grew optimally at 25 °C, at pH 7.0-8.0 and in the presence of 2.0% (w/v) NaCl. Strain OITF-57T exhibited the highest 16S rRNA gene sequence similarity value (94.2%) to the type strain of Pontivivens insulae forming a cluster in the neighbour-joining phylogenetic tree. In the maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences and the phylogenetic tress based on gyrB sequences, strain OITF-57T formed evolutionary lineages independent of those of other taxa. Strain OITF-57T contained Q-10 as the predominant ubiquinone and C18:1 ω7c as the major fatty acid. The major polar lipids of strain OITF-57T were phosphatidylcholine and phosphatidylglycerol. The DNA G + C content of strain OITF-57T was 66.0 mol%. The chemotaxonomic data and other differential phenotypic properties made it possible to distinguish strain OITF-57T from the genus Pontivivens and other phylogenetically related genera. On the basis of the data presented, strain OITF-57T constitutes a new genus and species within the class Alphaproteobacteria, for which the name Pseudopontivivens aestuariicola gen. nov., sp. nov. is proposed. The type strain is OITF-57T (= KACC 19570T = CGMCC 1.13481T).
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Guo LY, Ling SK, Li CM, Chen GJ, Du ZJ. Rhodosalinus sediminis gen. nov., sp. nov., isolated from marine saltern. Int J Syst Evol Microbiol 2017; 67:5108-5113. [PMID: 29043957 DOI: 10.1099/ijsem.0.002424] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-negative, moderately halophilic, motile, facultatively anaerobic and rod-shaped strain, designated WDN1C137T, was isolated from a marine saltern at Wendeng, PR China. Optimal growth occurred at 40 °C, pH 7.5 and with 7.0 % (w/v) NaCl. Q-10 was the sole respiratory quinone. The major cellular fatty acids (>10.0 %) in WDN1C137T were C18 : 1ω7c (46.2 %), cyclo C19 : 0ω8c (18.7 %) and C16 : 0 (12.3 %). The major polar lipids were phosphatidylglycerol, phosphoglycolipid, phosphatidylcholine, one unidentified glycolipid, one unidentified lipid, one unidentified aminolipid and two unidentified phospholipids. The genomic DNA G+C content was 70.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that WDN1C137T shared the highest similarity (94.5 %) to Roseivivax jejudonensis KCTC 42110T, followed by Roseivivax halodurans JCM 10272T (94.2 %) and Roseivivax roseus DSM 23042T (94.1 %). WDN1C137T formed a separate branch from the closely related genera Roseivivax, Loktanella, Paracoccus and Cribrihabitans within the family Rhodobacteraceae, which indicated that it represented a novel genus in the phylogenetic tree. On the basis of the data from the current polyphasic study, the isolate is proposed to represent a novel species of a novel genus within the family Rhodobacteraceae, with the name Rhodosalinus sediminis gen. nov., sp. nov. The type strain of the type species is WDN1C137T (=KCTC 52478T=MCCC 1H00170T).
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Affiliation(s)
- Ling-Yun Guo
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
- College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Si-Kai Ling
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
- College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Chang-Ming Li
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
- College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Guan-Jun Chen
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
- College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Zong-Jun Du
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
- College of Marine Science, Shandong University, Weihai, 264209, PR China
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Qiao Y, Wang Y, Yang X, Liu J, Wu Y, Zhang XH. Psychromarinibacter halotolerans gen. nov., sp. nov., isolated from seawater of the Yellow Sea. Int J Syst Evol Microbiol 2017; 67:3518-3524. [PMID: 28866994 DOI: 10.1099/ijsem.0.002159] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, strictly aerobic, motile, non-gliding, oxidase-positive, catalase-positive, rod-shaped bacterium, designated strain YBW34T, was isolated from seawater from the bottom of the Yellow Sea at station H12 (-73m in depth). Growth occurred at 10-45 °C (optimum 28 °C), in the presence of 1-12 % NaCl (w/v, optimum 4 %) and at pH 6.0-8.0 (optimum pH 7.0). The major fatty acids (>10 %) were C18 : 1 ω7c and C16 : 0. The major polar lipids comprised phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and three unidentified aminolipids. The major respiratory quinone was ubiquinone-10 (Q-10). The DNA G+C content of strain YBW34T was 64.2 mol%. The most closely related species was Tropicimonas isoalkanivorans JCM 14837T with 95.8 % sequence similarity in Alphaproteobacteria. It showed 16S rRNA gene sequence similarities of 93.03-95.49, 93.03-95.49 and 95.31-95.32 % to species of genera Rhodovulum, Lutimaribacter and Oceanicola, respectively. Nevertheless, strain YBW34T formed a distinct lineage in the trees which did not join the genera mentioned above in the phylogenetic dendrogram based on 16S rRNA gene sequences. The phenotypic, chemotaxonomic and phylogenetic data indicated that strain YBW34T represents a novel genus and species, for which the name Psychromarinibacter halotolerans gen. nov., sp. nov. is proposed. The type strain is YBW34T (=JCM 31462T=KCTC 52366T=MCCC 1K03203T).
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Affiliation(s)
- Yanlu Qiao
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, PR China
| | - Yanan Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, PR China
| | - Xiaoting Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, PR China
| | - Ji Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, PR China
| | - Yanhong Wu
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, PR China
| | - Xiao-Hua Zhang
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, PR China.,College of Marine Life Sciences, Ocean University of China, Qingdao 266003, PR China
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Monaibacterium marinum, gen. nov, sp. nov, a new member of the Alphaproteobacteria isolated from seawater of Menai Straits, Wales, UK. Int J Syst Evol Microbiol 2017; 67:3310-3317. [DOI: 10.1099/ijsem.0.002111] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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13
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Thongphrom C, Kim JH, Yoon JH, Bora N, Kim W. Marimonas arenosa gen. nov., sp. nov., isolated from sea sand. Int J Syst Evol Microbiol 2017; 67:121-126. [DOI: 10.1099/ijsem.0.001581] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Affiliation(s)
- Chutimon Thongphrom
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Jong-Hwa Kim
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hoon Yoon
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| | - Nagamani Bora
- School of Biosciences, University of Nottingham, Sutton Bonington, UK
| | - Wonyong Kim
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
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