title: Rheinheimera aquimaris sp. nov., isolated from seawater of the East Sea in Korea.
abstract: Two Gram-negative, motile, non-spore-forming bacterial strains, SW-353(T) and SW-369, were isolated from seawater from the East Sea, Korea, and their taxonomic positions were investigated by means of a polyphasic study. Strains SW-353(T) and SW-369 grew optimally at 30-37 degrees C and pH 7.0-8.0. Strains SW-353(T) and SW-369 contained Q-8 as the predominant ubiquinone and contained C(16 : 0), C(18 : 1) omega 7c and C(16 : 1) omega 7c and/or iso-C(15 : 0) 2-OH as the major fatty acids. The DNA G+C contents were 50.1 and 50.5 mol%. Strains SW-353(T) and SW-369 exhibited no differences in their 16S rRNA gene sequences and showed a mean DNA-DNA relatedness level of 91 %. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains SW-353(T) and SW-369 belong to the genus Rheinheimera. Similarity values between the 16S rRNA gene sequences of the two isolates and the type strains of the recognized Rheinheimera species were in the range 96.6-97.9 %. DNA-DNA relatedness data and differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strains SW-353(T) and SW-369 differ from the recognized Rheinheimera species. On the basis of phenotypic, phylogenetic and genetic data, therefore, strains SW-353(T) and SW-369 represent a novel species of the genus Rheinheimera, for which the name Rheinheimera aquimaris sp. nov. is proposed. The type strain is SW-353(T) (=KCTC 12840(T)=JCM 14331(T)).
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Yoon
authors.affiliation: Department of Fashion Design, Hanseo University, Seosan, Chungnam 356-820, Korea.
authors.forename: Soon Ei
authors.initials: SE
authors.lastname: Park
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
authors.forename: So-Jung
authors.initials: SJ
authors.lastname: Kang
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
authors.forename: Tae-Kwang
authors.initials: TK
authors.lastname: Oh
mesh_terms: D001482:Base Composition; D002841:Chromatiaceae / Q000737:chemistry / Q000145:classification* / Q000302:isolation & purification* / Q000502:physiology; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D020459:Genes, rRNA; D006863:Hydrogen-Ion Concentration; D007723:Korea; D008124:Locomotion; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D013171:Spores, Bacterial; D013696:Temperature; D014451:Ubiquinone / Q000032:analysis
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D014451:Ubiquinone