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KMID : 0880220180560120880
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Journal of Microbiology
2018 Volume.56 No. 12 p.880 ~ p.885
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Salicibibacter kimchii gen. nov., sp. nov., a moderately halophilic and alkalitolerant bacterium in the family Bacillaceae, isolated from kimchi
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Jang Ja-Young
Oh Young-Joon
Lim Seul-Ki
Park Hyo-Kyeong
Lee Chang-Su
Kim Joon-Yong
Lee Mi-Ai
Choi Hak-Jong
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Abstract
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A moderately halophilic and alkalitolerant bacterial strain NKC1-1T was isolated from commercial kimchi in Korea. Strain NKC1-1T was Gram-stain-positive, aerobic, rod-shaped, non-motile, and contained diaminopimelic acid-type murein. Cell growth was observed in a medium containing 0?25% (w/v) NaCl (optimal at 10% [w/v]), at 20?40°C (optimal at 37°C) and pH 6.5?10.0 (optimal at pH 9.0). The major isoprenoid quinone of the isolate was menaquinone-7, and the major polar lipids were phosphatidylglycerol and unidentified phospholipids. Cell membrane of the strain contained iso-C17:0 and anteiso-C15:0 as the major fatty acids. Its DNA G + C content was 45.2 mol%. Phylogenetic analysis indicated the strain to be most closely related to Geomicrobium halophilum with 92.7?92.9% 16S rRNA gene sequence similarity. Based on polyphasic taxonomic evaluation with phenotypic, phylogenetic, and chemotaxonomic analyses, the strain represents a novel species in a new genus, for which the name Salicibibacter kimchii gen. nov., sp. nov. is proposed (= CECT 9537T; KCCM 43276T).
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KEYWORD
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Salicibibacter kimchii gen. nov., sp. nov., halophile, alkalitolerant bacterium, kimchi, taxonomy
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