title: Sediminicola arcticus sp. nov., a psychrophilic bacterium isolated from deep-sea sediment, and emended description of the genus Sediminicola.
abstract: A Gram-stain-negative, rod-shaped and non-motile strain, designated PAMC 27266(T), was isolated from deep-sea sediment of the Arctic Ocean. Analysis of the 16S rRNA gene sequence of strain PAMC 27266(T) showed closest affiliation with the genus Sediminicola . Phylogenetic analyses revealed that strain PAMC 27266(T) formed a robust clade with Sediminicola luteus CNI-3(T), with which it shared 98.9% 16S rRNA gene sequence similarity. Genomic relatedness analyses based on the average nucleotide identity and genome-to-genome distance showed that strain PAMC 27266(T) is clearly distinguished from S. luteus . Cells of strain PAMC 27266(T) grew optimally at 15 °C and pH 6.5-7.5 in the presence of 3.5% (w/v) sea salts. The major polar lipids were phosphatidylethanolamine, two unidentified aminophospholipids and two unidentified lipids. The only respiratory quinone was menaquinone-6. The major cellular fatty acids (>10%) were C16 : 1ω6c and/or C16 : 1ω7c and C15 : 0. The genomic DNA G+C content was 37.9 mol%. Based on the phylogenetic, genomic, chemotaxonomic and phenotypic data presented, we propose strain PAMC 27266(T) ( =KCCM 43038(T) =JCM 19894(T)) as the type strain of a novel species, with the name Sediminicola arcticus sp. nov.
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Chung Yeon
authors.initials: CY
authors.lastname: Hwang
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Inae
authors.initials: I
authors.lastname: Lee
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Yirang
authors.initials: Y
authors.lastname: Cho
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Yung Mi
authors.initials: YM
authors.lastname: Lee
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: You-Jung
authors.initials: YJ
authors.lastname: Jung
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Kiwoon
authors.initials: K
authors.lastname: Baek
authors.affiliation: Arctic Research Center, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Seung-Il
authors.initials: SI
authors.lastname: Nam
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Hong Kum
authors.initials: HK
authors.lastname: Lee
mesh_terms: D001110:Arctic Regions; D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry; D041965:Flavobacteriaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D019015:Geologic Sediments / Q000382:microbiology*; D008969:Molecular Sequence Data; D010714:Phosphatidylethanolamines / Q000737:chemistry; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D010714:Phosphatidylethanolamines; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C483858:phosphatidylethanolamine; C042455:menaquinone 6