Salicibibacter kimchii gen. nov., sp. nov., a moderately halophilic and alkalitolerant bacterium in the family Bacillaceae, isolated from kimchi
2018
Jang, J.Y., World Institute of Kimchi, Gwangju, Republic of Korea | Oh, Y.J., World Institute of Kimchi, Gwangju, Republic of Korea | Lim, S.K., World Institute of Kimchi, Gwangju, Republic of Korea | Park, H.K., World Institute of Kimchi, Gwangju, Republic of Korea | Lee, C., World Institute of Kimchi, Gwangju, Republic of Korea | Kim, J.Y., Kyung Hee University, Seoul, Republic of Korea | Lee, M.A., World Institute of Kimchi, Gwangju, Republic of Korea | Choi, H.J., World Institute of Kimchi, Gwangju, Republic of Korea
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℃ (optimal at 37℃) 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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