title: Sanguibacter antarcticus sp. nov., isolated from Antarctic sea sand.
abstract: A Gram-positive, yellow-pigmented bacterium, strain KOPRI 21702(T), was isolated from sea sand on King George Island, Antarctica. Cells were irregular rods with peritrichous flagella; their optimum growth temperature was 23-26 degrees C. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the Antarctic isolate formed a distinct phyletic line in a clade of the genus Sanguibacter and showed highest sequence similarity (97.7%) to the type strain of Sanguibacter keddieii. The major isoprenoid quinone, predominant cellular fatty acids and DNA G+C content were consistent with placement of the Antarctic isolate in the genus Sanguibacter. Phylogenetic analysis and differences in physiological and biochemical characteristics between strain KOPRI 21702(T) and the four recognized Sanguibacter species indicate that the isolate represents a novel species of this genus. The name Sanguibacter antarcticus sp. nov. (type strain KOPRI 21702(T) =KCTC 13143(T) =JCM 14623(T) =DSM 18966(T)) is proposed for this isolate.
authors.affiliation: Polar BioCenter, Korea Polar Research Institute, KORDI, Songdo Techno Park, Songdo-dong 7-50, Yeonsu-gu, Incheon 406-840, Republic of Korea.
authors.forename: Soon Gyu
authors.initials: SG
authors.lastname: Hong
authors.forename: Yoo Kyung
authors.initials: YK
authors.lastname: Lee
authors.forename: Joung Han
authors.initials: JH
authors.lastname: Yim
authors.forename: Jongsik
authors.initials: J
authors.lastname: Chun
authors.forename: Hong Kum
authors.initials: HK
authors.lastname: Lee
mesh_terms: D000192:Actinomycetales / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D000864:Antarctic Regions; D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D020459:Genes, rRNA; D019015:Geologic Sediments; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater; D017422:Sequence Analysis, DNA; D012822:Silicon Dioxide; D012988:Soil Microbiology; D013045:Species Specificity
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D012822:Silicon Dioxide