title: Colwellia aestuarii sp. nov., isolated from a tidal flat sediment in Korea.
abstract: A novel Colwellia-like bacterial strain, SMK-10T, was isolated from a tidal flat sediment in Korea and subjected to a polyphasic taxonomic analysis. Cells of strain SMK-10T were Gram-negative, motile, greyish yellow-pigmented, curved rods. Optimal growth occurred at 25-30 degrees C and in the presence of 2-3 % (w/v) NaCl. Strain SMK-10T contained Q-8 as the predominant ubiquinone and C(16 : 1)omega7c and/or iso-C(15 : 0) 2-OH, C(17 : 1), C(15 : 1) and iso-C(16 : 0) as major fatty acids. The DNA G+C content was 39.3 mol%. Phylogenetic trees based on 16S rRNA gene sequence analysis showed that strain SMK-10T belonged to the genus Colwellia. 16S rRNA gene sequence similarity values (94.7-96.7 %) to the type strains of all other Colwellia species and various differential phenotypic properties were sufficient to distinguish strain SMK-10T from recognized Colwellia species. On the basis of its phenotypic properties and phylogenetic distinctiveness, strain SMK-10T (= KCTC 12480T = DSM 17314T) is classified as the type strain of a novel Colwellia species, for which the name Colwellia aestuarii sp. nov. is proposed.
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, South Korea.
authors.forename: Seo-Youn
authors.initials: SY
authors.lastname: Jung
authors.forename: Tae-Kwang
authors.initials: TK
authors.lastname: Oh
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Yoon
mesh_terms: D020591:Alteromonas / Q000737:chemistry / Q000145:classification* / Q000302:isolation & purification / Q000502:physiology; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids; D019015:Geologic Sediments / Q000382:microbiology*; D007723:Korea; D008969:Molecular Sequence Data; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D013045:Species Specificity; D013696:Temperature; D014451:Ubiquinone
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D014451:Ubiquinone