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Int J Syst Evol Microbiol 58 (2008), 50-52; DOI  10.1099/ijs.0.65031-0
© 2008 International Union of Microbiological Societies

Sanguibacter antarcticus sp. nov., isolated from Antarctic sea sand

Soon Gyu Hong1, Yoo Kyung Lee1, Joung Han Yim1, Jongsik Chun2 and Hong Kum Lee1

1 Polar BioCenter, Korea Polar Research Institute, KORDI, Songdo Techno Park, Songdo-dong 7-50, Yeonsu-gu, Incheon 406-840, Republic of Korea
2 School of Biological Sciences and Institute of Microbiology, Seoul National University, 56-1 Shillim-dong, Kwanak-gu, Seoul 151-742, Republic of Korea

Correspondence
Hong Kum Lee
hklee{at}kopri.re.kr

A Gram-positive, yellow-pigmented bacterium, strain KOPRI 21702T, was isolated from sea sand on King George Island, Antarctica. Cells were irregular rods with peritrichous flagella; their optimum growth temperature was 23–26 °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 21702T 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 21702T =KCTC 13143T =JCM 14623T =DSM 18966T) is proposed for this isolate.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain KOPRI 21702T is EF211071.






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