title: Kordia antarctica sp. nov., isolated from Antarctic seawater.
abstract: A Gram-staining-negative, chemoheterotrophic, yellow-pigmented, non-motile, flexirubin-negative, facultatively anaerobic bacterium, designated strain IMCC3317(T), was isolated from a coastal seawater sample from the Antarctic Penninsula. Optimal growth of strain IMCC3317(T) was observed at 20 °C, pH 8.0 and in the presence of 2-3 % NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain IMCC3317(T) belonged to the genus Kordia and was closely related to Kordia algicida OT-1(T) (96.7 % sequence similarity) and Kordia periserrulae IMCC1412(T) (96.1 % sequence similarity). The major fatty acids were 10-methyl C16 : 0 and/or iso-C16 : 1ω9c, iso-C17 : 0 3-OH, iso-C15 : 0 and anteiso-C15 : 0. The G+C content of the genomic DNA was 35.1 mol%. The strain contained menaquinone-6 (MK-6) as the respiratory quinone. The polar lipids detected in the strain were phosphatidylethanolamine and unknown aminophospholipids, aminolipids and polar lipids. On the basis of phylogenetic distinction and differential phenotypic characteristics, it is suggested that strain IMCC3317(T) ( = KCTC 32292(T) = NBRC 109401(T)) be assigned to the genus Kordia as the type strain of a novel species, for which the name Kordia antarctica sp. nov. is proposed.
authors.affiliation: Division of Biology and Ocean Sciences, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Kiwoon
authors.initials: K
authors.lastname: Baek
authors.affiliation: Division of Biology and Ocean Sciences, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Ahyoung
authors.initials: A
authors.lastname: Choi
authors.affiliation: Division of Biology and Ocean Sciences, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Ilnam
authors.initials: I
authors.lastname: Kang
authors.affiliation: Division of Biology and Ocean Sciences, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Kiyoung
authors.initials: K
authors.lastname: Lee
authors.affiliation: Division of Biology and Ocean Sciences, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Jang-Cheon
authors.initials: JC
authors.lastname: Cho
mesh_terms: D000864:Antarctic Regions; D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D041965:Flavobacteriaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D008969:Molecular Sequence Data; D010714:Phosphatidylethanolamines / Q000032:analysis; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000032:analysis
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D010714:Phosphatidylethanolamines; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C042455:menaquinone 6