title: Moritella dasanensis sp. nov., a psychrophilic bacterium isolated from the Arctic ocean.
abstract: An aerobic, motile, Gram-negative, ice-active substance-producing, rod-shaped psychrophile, designated strain ArB 0140T, was isolated from seawater collected from near a glacier in Kongsfjorden, Svalbard Archipelago, Norway. Phylogenetic analysis using 16S rRNA gene sequences indicated that strain ArB 0140T showed a distinct phyletic line within the genus Moritella. Characteristic chemotaxonomic data [predominant isoprenoid quinone, Q8; major fatty acids, C14 : 0, C14 : 1, C16 : 0, C16 : 1 and C22 : 6 (docosahexaenoic acid; DHA)] also corroborated the affiliation of strain ArB 0140T to the genus Moritella. The maximal growth rate of the novel strain was observed at 9 degrees C, with a maximum temperature for growth of 18 degrees C. The genomic DNA G+C content was 46.9 mol%. Based on the data obtained from this polyphasic study, including DNA-DNA relatedness, physiological and biochemical tests and ice-controlling activity, strain ArB 0140T was found to be genetically and phenotypically different from other recognized species of the genus Moritella. Therefore strain ArB 0140T represents a novel species, for which the name Moritella dasanensis sp. nov. is proposed. The type strain is ArB 0140T (=KCTC 10814T=KCCM 42845T=JCM 14759T).
authors.affiliation: Department of Applied Polar Sciences, Korea Polar Research Institute, KORDI, 7-50 Songdo-dong, Incheon 406-840, Republic of Korea.
authors.forename: Hak Jun
authors.initials: HJ
authors.lastname: Kim
authors.forename: Soyoung
authors.initials: S
authors.lastname: Park
authors.forename: Jung Min
authors.initials: JM
authors.lastname: Lee
authors.forename: Seungil
authors.initials: S
authors.lastname: Park
authors.forename: Woongsic
authors.initials: W
authors.lastname: Jung
authors.forename: Jae-Shin
authors.initials: JS
authors.lastname: Kang
authors.forename: Hyung Min
authors.initials: HM
authors.lastname: Joo
authors.forename: Ki-Won
authors.initials: KW
authors.lastname: Seo
authors.forename: Sung-Ho
authors.initials: SH
authors.lastname: Kang
mesh_terms: D001110:Arctic Regions; D001482:Base Composition; D050260:Carbohydrate Metabolism; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000378:metabolism; D005798:Genes, Bacterial; D046448:Ice Cover / Q000382:microbiology; D008969:Molecular Sequence Data; D034221:Moritella / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D009664:Norway; D010641:Phenotype; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology; D013045:Species Specificity; D009626:Terminology as Topic
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S