Polaribacter sejongensis sp. nov., isolated from Antarctic soil, and emended descriptions of the genus Polaribacter, Polaribacter butkevichii and Polaribacter irgensii

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Title
Polaribacter sejongensis sp. nov., isolated from Antarctic soil, and emended descriptions of the genus Polaribacter, Polaribacter butkevichii and Polaribacter irgensii
Author(s)
Byung Chun Kim; Hyun Woo Oh; Hyangmi Kim; Doo-Sang Park; S G Hong; H K Lee; Kyung Sook Bae
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, vol. 63, no. 11, pp. 4000-4005
Publication Year
2013
Abstract
A Gram-staining-negative, catalase-and oxidase-positive, non-motile bacterium, designated strain KOPRI 21160T, was isolated from Antarctic soil. Based on 16S rRNA gene sequence analysis, strain KOPRI 21160T was found to belong to the genus Polaribacter. Sequence similarity between strain KOPRI 21160T and the type strains of species of the genus Polaribacter was 94.2-98.3%. The nearest phylogenetic neighbours of strain KOPRI 21160T were Polaribacter butkevichii KCTC 12100T (98.3% similarity) and Polaribacter irgensii KCTC 23136T (97.5%). DNA-DNA relatedness was 50.6%, between strain KOPRI 21160T and P. butkevichii KCTC 12100T, and 45.2% between strain KOPRI 21160T and P. irgensii KCTC 23136T. Strain KOPRI 21160T grew at 4-37 6C and at pH 7.0-8.5. It could hydrolyse DNA, starch and Tweens 20, 40, 60 and 80. Menaquinone-6 (MK-6) was the only respiratory quinone, and iso-C15: 0, iso-C15: 0 3-OH and C15: 1v6c were the major cellular fatty acids. The major polar lipids were phosphatidylethanolamine, two unidentified aminolipids and one unidentified lipid. The DNA G+C content was 30.0 mol%. Based on data from our polyphasic study, the organism is considered to represent a novel species of the genus Polaribacter, for which we propose the name Polaribacter sejongensis sp. nov. The type strain is KOPRI 21160T (5KCTC 23670T5JCM 18092T). Emended descriptions of the genus Polaribacter, Polaribacter butkevichii Nedashkovskaya et al. 2005 and Polaribacter irgensii Gosink et al. 1998 are also proposed.
ISSN
1466-5026
Publisher
Microbiology Soc
DOI
http://dx.doi.org/10.1099/ijs.0.047100-0
Type
Article
Appears in Collections:
Division of Bio Technology Innovation > Core Facility Management Center > 1. Journal Articles
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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