A novel strain, designated 5715S-12, was isolated from an air sample collected from Suwon region, Republic of Korea, using R2A medium. The cells were strictly aerobic, Gram-negative, motile, short rods. Comparison of the 16S rRNA gene sequence of strain 5715S-12 showed the highest sequence similarities to S21B (95.9 %) and WP1 (95.4 %). Phylogenetic trees indicated that the strain formed a cluster with members of the family ( , and ). The major fatty acid was C 7. The predominant isoprenoid quinone was ubiquinone 10 (Q-10). Diphosphatidylglycerol, phosphatidylmonomethylethanolamine, phosphatidylethanolamine, phosphatidyldimethylethanolamine, phosphatidylglycerol, phosphatidylcholine and four unknown lipids were found as the polar lipid components. The DNA G+C content was 67.0 mol%. On the basis of the phenotypic and phylogenetic features studied, we propose that strain 5715S-12 be assigned to a novel species of the genus , for which the name sp. nov. (type strain 5715S-12 =KACC 11607 =DSM 18598) is proposed.


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Transmission electron micrograph of a cell of strain 5715S-12 . Bar, 1 µm.


[PDF file of Supplementary Figs S2 and S3](39 KB)


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