title: Octadecabacterponticola sp. nov., isolated from seawater.
abstract: A Gram-stain-negative, non-spore-forming, non-flagellated and coccoid, ovoid or rod-shaped bacterial strain, HDSW-34T, was isolated from seawater of Hwang-do on the Yellow Sea, South Korea, and subjected to a taxonomic study using a polyphasic approach. Strain HDSW-34T grew optimally at 30 °C, at pH 7.0-8.0 and in the presence of 1.0-2.0 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences revealed that strain HDSW-34Tclustered with the type strains of four species of the genus Octadecabacter, showing 96.7-97.6 % sequence similarity. Strain HDSW-34T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The major polar lipids detected in strain HDSW-34T were phosphatidylcholine, phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. The DNA G+C content of strain HDSW-34T was 62.0 mol% and its DNA-DNA relatedness values with Octadecabacterantarcticus CIP 106731T and Octadecabacterarcticus DSM 13978T were 11-18 %. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain HDSW-34T is separated from other recognized species of the genus Octadecabacter. On the basis of the data presented, strain HDSW-34T is considered to represent a novel species of the genus Octadecabacter, for which the name Octadecabacterponticola sp. nov. is proposed. The type strain is HDSW-34T (= KCTC 52250T=NBRC 112296T).
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
authors.forename: Sooyeon
authors.initials: S
authors.lastname: Park
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
authors.forename: Sun Young
authors.initials: SY
authors.lastname: Yoon
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.|University of Science and Technology (UST), 113 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea.
authors.forename: Yong-Taek
authors.initials: YT
authors.lastname: Jung
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Yoon
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D056910:Republic of Korea; D041902:Rhodobacteraceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D014451:Ubiquinone / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D014451:Ubiquinone; C024989:coenzyme Q10