scholarly journals Aliiglaciecola aliphaticivorans sp. nov., an aliphatic hydrocarbon-degrading bacterium, isolated from a sea-tidal flat and emended description of the genus Aliiglaciecola Jean et al. 2013

2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1550-1555 ◽  
Author(s):  
Hyun Mi Jin ◽  
Hye Im Jeong ◽  
Che Ok Jeon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
The Yellow Sea ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Molecular Features ◽  
Degrading Bacterium ◽  
Emended Description

A Gram-stain-negative heterotrophic bacterium, designated GSD6T, capable of growth on aliphatic hydrocarbons as a sole carbon and energy source, was isolated from sea-tidal flat sediment of the Yellow Sea, South Korea. Cells were facultatively aerobic, catalase- and oxidase-positive, motile rods with a single polar flagellum. Growth of strain GSD6T was observed at 4–37 °C (optimum 30 °C), at pH 5.5–9.0 (optimum pH 6.5–7.5) and in the presence of 1–9 % (w/v) NaCl (optimum 2 %). Strain GSD6T contained ubiquinone-8 (Q-8) as the sole isoprenoid quinone and summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH), C16 : 0, C18 : 1ω7c, C17 : 0 10-methyl and C17 : 1ω8c as the major fatty acids. Phosphatidylethanolamine and phosphatidylglycerol were identified as the major polar lipids. The G+C content of the genomic DNA was 44.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain GSD6T formed a phylogenetic lineage with members of the genus Aliiglaciecola . Strain GSD6T was most closely related to Aliiglaciecola lipolytica E3T with a 16S rRNA gene sequence similarity of 97.4 %, but their DNA–DNA hybridization value was 39.1±7.1 %. On the basis of phenotypic, chemotaxonomic and molecular features, strain GSD6T represents a novel species of the genus Aliiglaciecola , for which the name Aliiglaciecola aliphaticivorans sp. nov. is proposed. The type strain is GSD6T ( = KACC 18129T = JCM 30133T). An emended description of the genus Aliiglaciecola is also proposed.

scholarly journals Pseudoalteromonas caenipelagi sp. nov., isolated from a tidal flat

2020 ◽  
Vol 70 (12) ◽  
pp. 6301-6306
Author(s):  
Sooyeon Park ◽  
Seo Yeon Lee ◽  
Wonyong Kim ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Strain ◽  
Type Species ◽  
The Yellow Sea ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-stain-negative, aerobic, non-spore-forming, motile by single polar flagellum and ovoid or rod-shaped bacterial strain, designated JBTF-M23T, was isolated from tidal flat sediment collected from the Yellow Sea, Republic of Korea. Neighbour-joining phylogenetic tree of 16S rRNA gene sequences showed that strain JBTF-M23T fell within the clade comprising the type strains of Pseudoalteromonas species, clustering with the type strains of P. byunsanensis and P. amylolytica . Strain JBTF-M23T exhibited the highest 16S rRNA gene sequence similarity value (98.6 %) to the type strain of P. rubra and sequence similarities of 98.3 and 97.7 % to the type strains of P. byunsanensis and P. amylolytica, respectively. The DNA G+C content of strain JBTF-M23T from genomic sequence data was 41.98 %. The ANI and dDDH values between strain JBTF-M23T and the type strains of P. rubra , P. byunsanensis and P. amylolytica were 71.3–76.6 and 19.4–19.9 %, respectively. Strain JBTF-M23T contained Q-8 as the predominant ubiquinone and C16 : 1  ω7c and/or C16 : 1  ω6c, C16 : 0 and C18 : 1  ω7c as the major fatty acids. The major polar lipids of strain JBTF-M23T were phosphatidylethanolamine and one unidentified aminolipid. Distinguished phenotypic properties, along with the phylogenetic and genetic distinctiveness, revealed that strain JBTF-M23T is separated from recognized Pseudoalteromonas species. On the basis of the data presented, strain JBTF-M23Tis considered to represent a novel species of the genus Pseudoalteromonas , for which the name Pseudoalteromonas caenipelagi sp. nov. is proposed. The type strain is JBTF-M23T(=KACC 19900T=NBRC 113647T).

Defluviimonas aestuarii sp. nov., a marine bacterium isolated from a tidal flat, and emended description of the genus Defluviimonas Foesel et al. 2011

2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 2895-2900 ◽  
Author(s):  
Renukaradhya K. Math ◽  
Hyun Mi Jin ◽  
Sang Hyeon Jeong ◽  
Che Ok Jeon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Polar Lipid ◽  
Tidal Flat ◽  
Type Species ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Content Type ◽  
Link Type ◽  
Emended Description

A novel Gram-staining-negative, strictly aerobic bacterium, designated BS14T, was isolated from a marine tidal flat of the South Sea in Korea. Colonies were opaque, white, smooth and circular on marine agar. Cells were moderately halophilic, non-motile rods showing catalase- and oxidase-positive reactions. Growth of strain BS14T was observed at 5–40 °C (optimum: 30 °C), pH 6.5–9.5 (optimum: 7.0–7.5) and 0–10 % (w/v) NaCl (optimum: 1–1.5 %). The G+C content of the genomic DNA was 61.6 mol%. Strain BS14T contained ubiquinone-10 (Q-10) as the sole respiratory quinone and summed feature 8 (comprising C18 : 1ω7c and/or C18 : 1ω6c), C18 : 0 3-OH, C10 : 0 3-OH and C18 : 0 as the major fatty acids. The polar lipid pattern comprised phosphatidylethanolamine, diphosphatidylglycerol, an unidentified aminolipid, an unidentified phospholipid and an unidentified polar lipid. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain BS14T formed a tight phylogenetic lineage with Defluviimonas denitrificans D9-3T with a bootstrap value of 100 %. The 16S rRNA gene sequence similarity between strain BS14T and D. denitrificans D9-3T was 97.4 % and their DNA–DNA relatedness was 19.1±3.6 %. Based on the phenotypic and genotypic studies, strain BS14T represents a novel species of the genus Defluviimonas , for which the name Defluviimonas aestuarii sp. nov. is proposed. The type strain is BS14T ( = KACC 16442T = JCM 18630T). An emended description of the genus Defluviimonas Foesel et al. 2011 is also proposed.

Altererythrobacter gangjinensis sp. nov., a marine bacterium isolated from a tidal flat

2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 971-976 ◽  
Author(s):  
Sang Hyeon Jeong ◽  
Hyun Mi Jin ◽  
Hyo Jung Lee ◽  
Che Ok Jeon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Aerobic Bacterium ◽  
Content Type ◽  
Link Type ◽  
Molecular Features

A Gram-stain-negative, ochre-pigmented, strictly aerobic bacterium, designated strain KJ7T, was isolated from a tidal flat of the Gangjin bay in South Korea. Cells were halotolerant, non-motile, catalase- and oxidase-positive rods. Growth of strain KJ7T was observed at 5–35 °C (optimum, 25 °C), at pH 6.0–9.5 (optimum, pH 6.5–7.0) and in the presence of 0–9 % (w/v) NaCl (optimum, 2 %). The major cellular fatty acids were C18 : 1ω7c, C17 : 1ω6c, summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c) and C16 : 0. The polar lipid pattern indicated the presence of phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, a sphingoglycolipid, an unidentified phospholipid and two unidentified lipids. The G+C content of the genomic DNA was 60.2±0.9 mol% and the predominant respiratory quinone was Q-10. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain KJ7T formed a phyletic lineage distinct from other members of the genus Altererythrobacter and was most closely related to Altererythrobacter luteolus SW-109T and Altererythrobacter namhicola KYW48T (95.6 and 95.0 % 16S rRNA gene sequence similarity, respectively). On the basis of phenotypic, chemotaxonomic and molecular features, strain KJ7T represents a novel species of the genus Altererythrobacter , for which the name Altererythrobacter gangjinensis sp. nov. is proposed. The type strain is KJ7T ( = KACC 16190T = JCM 17802T).

scholarly journals Shewanella insulae sp. nov., isolated from a tidal flat

2020 ◽  
Vol 70 (6) ◽  
pp. 3872-3877 ◽  
Author(s):  
Sooyeon Park ◽  
In Kyu Kim ◽  
Wonyong Kim ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
Genomic Sequence ◽  
The Yellow Sea ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-stain-negative, aerobic, non-spore-forming, motile by single polar flagellum and ovoid or rod-shaped bacterial strain, designated JBTF-M18T, was isolated from tidal-flat sediment collected from the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree of 16S rRNA gene sequences showed that strain JBTF-M18T fell within the clade comprising the type strains of Shewanella species. Strain JBTF-M18T exhibited 16S rRNA gene sequence similarity values of 97.1–98.8 % to the type strains of S. loihica , S. aquimarina , S. waksmanii and S. marisflavi and of less than 96.9 % to the type strains of the other Shewanella species. The average nucleotide identity and digital DNA–DNA hybridization values between strain JBTF-M18T and the type strains of S. waksmanii and S. loihica were 72.0 and 89.5% and 18.9 and 38.1 %, respectively. DNA–DNA relatedness values between strain JBTF-M18T and the type strains of S. aquimarina and S. marisflavi were 14 and 19 %, respectively. The DNA G+C content of strain JBTF-M18T from genomic sequence data was 52.9 %. Strain JBTF-M18Tcontained MK-6 as the predominant menaquinone and Q-7 and Q-8 as the predominant ubiquinones. It had iso-C15 : 0, summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c) and C16 : 0 as the major fatty acids. The major polar lipids of strain JBTF-M18T were phosphatidylethanolamine and phosphatidylglycerol. Distinguished phenotypic properties, along with the phylogenetic and genetic distinctiveness, revealed that strain JBTF-M18T is separated from recognized Shewanella species. On the basis of the data presented, strain JBTF-M18T is considered to represent a novel species of the genus Shewanella , for which the name Shewanella insulae sp. nov. is proposed. The type strain is JBTF-M18T (=KACC 19869T=NBRC 113583T).

Sulfitobacter aestuariivivens sp. nov., isolated from a tidal flat

2021 ◽  
Vol 71 (6) ◽  
Author(s):  
Sooyeon Park ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
Genomic Sequence ◽  
The Yellow Sea ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-stain-negative, aerobic, non-flagellated, coccoid, ovoid or rod-shaped bacterial strain, TSTF-M16T, was isolated from a tidal flat on the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree of 16S rRNA gene sequences showed that strain TSTF-M16T fell within a clade comprising the type strains of Sulfitobacter species. Strain TSTF-M16T exhibited 16S rRNA gene sequence similarities of 98.5 and 98.1 % to the type strains of Sulfitobacter mediterraneus and Sulfitobacter sabulilitoris , respectively, and 96.2–97.8 % to the type strains of the other Sulfitobacter species. The average nucleotide identity and digital DNA–DNA hybridization values between the genomic sequences of strain TSTF-M16T and the type strains of 16 Sulfitobacter species were 70.6–74.2 and 17.9–19.0 %, respectively. The DNA G+C content of strain TSTF-M16T from genomic sequence data was 59.26 mol%. Strain TSTF-M16T contained Q-10 as the predominant ubiquinone and C18 : 1  ω7c as the major fatty acid. The major polar lipids of strain TSTF-M16T were phosphatidylcholine, phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. Distinguished phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain TSTF-M16T is separated from recognized Sulfitobacter species. On the basis of the data presented here, strain TSTF-M16T is considered to represent a novel species of the genus Sulfitobacter , for which the name Sulfitobacter aestuariivivens sp. nov. is proposed. The type strain is TSTF-M16T (=KACC 21645T=NBRC 114501T).

scholarly journals Altererythrobacter insulae sp. nov., a lipolytic bacterium isolated from a tidal flat

2019 ◽  
Vol 69 (4) ◽  
pp. 1009-1015 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Strain ◽  
Type Species ◽  
The Yellow Sea ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A lipolytic, Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated BPTF-M16T, was isolated from tidal flat sediment on the Yellow Sea in the Republic of Korea. Strain BPTF-M16T grew optimally at 30 °C and in the presence of 2.0–3.0 % (w/v) NaCl. A phylogenetic tree of 16S rRNA gene sequences showed that strain BPTF-M16T fell within the clade comprising the type strains of Altererythrobacter species. Strain BPTF-M16T exhibited 16S rRNA gene sequence similarity values of 98.0 and 97.1 % to the type strains of Altererythrobacter ishigakiensis and A ltererythrobacter marinus , respectively, and of less than 97.0 % to the type strains of the other recognized species. Strain BPTF-M16T contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c as the major fatty acid. The major polar lipids detected in strain BPTF-M16T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, sphingoglycolipid and one unidentified glycolipid. Mean DNA–DNA relatedness values of strain BPTF-M16T with the type strains of A. ishigakiensis and A. marinus were 22 and 13 %, respectively. The average nucleotide identity value between strain BPTF-M16T and the type strain of A. ishigakiensis was 76.80 %. Differential phenotypic properties, together with the phylogenetic and genetic data, revealed that strain BPTF-M16T is separated from recognized Altererythrobacter species. On the basis of the data presented here, strain BPTF-M16T is considered to represent a novel species of the genus Altererythrobacter , for which the name Altererythrobacter insulae sp. nov. is proposed. The type strain is BPTF-M16T (=KCTC 62421T=KACC 19609T=NBRC 113190T).

Arenibacter hampyeongensis sp. nov., a marine bacterium isolated from a tidal flat

2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 679-684 ◽  
Author(s):  
Sang Hyeon Jeong ◽  
Hyun Mi Jin ◽  
Jeong Myeong Kim ◽  
Che Ok Jeon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Aerobic Bacterium ◽  
Content Type ◽  
Link Type ◽  
Molecular Features

A Gram-staining-negative, dark orange, strictly aerobic bacterium, designated strain HP12T, was isolated from a tidal flat at Hampyeong in South Korea. Cells were moderately halotolerant, catalase- and oxidase-positive, non-motile rods. Growth was observed at 5–35 °C (optimum, 25 °C), at pH 6.0–8.5 (optimum, pH 7.0–7.5), and in the presence of 1–6 % (w/v) NaCl (optimum, 1–2 %). The major cellular fatty acids were summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH), iso-C17 : 0 3-OH, C15 : 0, iso-C15 : 1 G and iso-C15 : 0. The polar lipid pattern indicated the presence of phosphatidylethanolamine and two unidentified lipids. The G+C content of the genomic DNA was 37.1 mol% and the predominant respiratory quinone was menaquinone-6. Phylogenetic analysis based on 16S rRNA gene sequences showed that the novel strain formed a tight phyletic lineage with members of the genus Arenibacter and was most closely related to Arenibacter palladensis KMM 3961T, Arenibacter troitsensis KMM 3674T and Arenibacter echinorum KMM 6032T, with 16S rRNA gene sequence similarities of 98.1 %, 98.0 % and 97.8 %, respectively. However, the DNA–DNA relatedness values between strain HP12T and A. palladensis JCM 13509T, A. troitsensis KCTC 12362T and A. echinorum KCTC 22013T were only 20.2±0.3 %, 22.6±0.6 % and 9.1±2.6 %, respectively. On the basis of phenotypic and molecular features, strain HP12T represents a novel species of the genus Arenibacter , for which the name Arenibacter hampyeongensis sp. nov. is proposed. The type strain is HP12T ( = KACC 16193T = JCM 17788T).

scholarly journals Erythrobacter lutimaris sp. nov., isolated from a tidal flat sediment

2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 4184-4190 ◽  
Author(s):  
Yong-Taek Jung ◽  
Sooyeon Park ◽  
Jung-Sook Lee ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
Sequence Similarity ◽  
The Yellow Sea ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Tidal Flat Sediment

A Gram-stain-negative, non-motile, coccoid- or oval-shaped bacterial strain, designated S-5T, belonging to the class Alphaproteobacteria , was isolated from a tidal flat sediment of the Yellow Sea, Korea and was subjected to a polyphasic taxonomic study. Strain S-5T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2–3 % (w/v) NaCl. Neighbour-joining analysis based on 16S rRNA gene sequences showed that strain S-5T fell within the clade comprising the species of the genus Erythrobacter , clustering with the type strains of Erythrobacter pelagi , Erythrobacter citreus and Erythrobacter seohaensis with which it exhibited the highest 16S rRNA gene sequence similarity (96.0–96.7 %). The DNA G+C content was 66.0 mol%. Strain S-5T contained Q-10 as the predominant ubiquinone and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and C17 : 1ω6c as the major fatty acids. The major polar lipids were sphingoglycolipid, phosphatidylcholine, phosphatidylglycerol, an unidentified glycolipid and two unidentified lipids. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, demonstrated that strain S-5T is distinguishable from other species of the genus Erythrobacter . On the basis of the data presented, strain S-5T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter lutimaris sp. nov. is proposed. The type strain is S-5T ( = KCTC 42109T = CECT 8624T).

scholarly journals Erythrobacter insulae sp. nov., isolated from a tidal flat

2020 ◽  
Vol 70 (3) ◽  
pp. 1470-1477 ◽  
Author(s):  
Sooyeon Park ◽  
Siyu Chen ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
The Yellow Sea ◽  
Rrna Gene ◽  
Phenotypic Properties ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-staining-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated as JBTF-M21T, was isolated from a tidal flat sediment on the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences indicated that JBTF-M21T fell within the clade comprising the type strains of species of the genus Erythrobacter . JBTF-M21T exhibited 16S rRNA gene sequence similarities of 97.0–98.4 % to the type strains of Erythrobacter longus , Erythrobacter aquimaris , Erythrobacter nanhaisediminis , Erythrobacter vulgaris , Erythrobacter seohaensis , Erythrobacter litoralis and Erythrobacter citreus and 93.7–96.6 % to the type strains of the other species of the genus Erythrobacter . The ANI and dDDH values between JBTF-M21T and the type strains of E. longus , E. nanhaisediminis , E. seohaensis and E. litoralis were 70.83–72.93 % and 18.0–18.8 %, respectively. Mean DNA–DNA relatedness values between JBTF-M21T and the type strains of E. aquimaris , E. vulgaris and E. citreus were 12–24 %. The DNA G+C content of JBTF-M21T was 57.0 mol%. JBTF-M21T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c and C17 : 1ω6c as the major fatty acids. The major polar lipids ofJBTF-M21T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. Distinguishing phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that JBTF-M21T is separated from species of the genus Erythrobacter with validly published names. On the basis of the data presented, strain JBTF-M21T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter insulae sp. nov. is proposed. The type strain is JBTF-M21T (=KACC 19864T=NBRC 113584T).

Cyclobacterium caenipelagi sp. nov., isolated from a tidal flat sediment, and emended description of the genus Cyclobacterium

2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3158-3163 ◽  
Author(s):  
Yong-Taek Jung ◽  
Jung-Sook Lee ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Tidal Flat Sediment ◽  
Emended Description

A Gram-staining-negative, aerobic, non-flagellated, non-gliding and ring-like or horseshoe-shaped bacterial strain, designated HD-17T, was isolated from a tidal flat sediment in the Korean peninsula. Strain HD-17T grew optimally at pH 7.0–8.0, at 25 °C and in the presence of 2.0 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain HD-17T fell within the clade comprising species of the genus Cyclobacterium . Strain HD-17T exhibited 16S rRNA gene sequence similarity values of 93.8–98.8 % to the type strains of species of the genus Cyclobacterium . Strain HD-17T contained MK-7 as the predominant menaquinone and iso-C15 : 0, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c), anteiso-C15 : 0 and iso-C15 : 1 G as the major fatty acids. The major polar lipids of strain HD-17T were phosphatidylcholine, phosphatidylethanolamine and two unidentified lipids. The DNA G+C content of strain HD-17T was 43.8 mol% and its DNA–DNA relatedness values with Cyclobacterium amurskyense KCTC 12363T, Cyclobacterium qasimii KCTC 23011T and Cyclobacterium marinum KCTC 2917T were 10.4, 7.6 and 5.3 %, respectively. The phylogenetic and genetic distinctiveness and several differentiating phenotypic properties revealed that strain HD-17T was separate from other species of the genus Cyclobacterium . On the basis of the data presented, strain HD-17T represents a novel species of the genus Cyclobacterium , for which the name Cyclobacterium caenipelagi sp. nov. is proposed. The type strain is HD-17T ( = KCTC 32178T = CCUG 63247T). An emended description of the genus Cyclobacterium is also provided.

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