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Abstract

Three bacterial isolates from air samples in Korea, designated strains 6424S-25, 6515J-31 and 6424S-61, were characterized using a polyphasic approach. The cells were strictly aerobic, Gram-stain-negative, non-motile, non-spore-forming and rod-shaped. Phylogenetic analysis of their 16S rRNA gene sequences revealed a clear affiliation with the phylum . Strains 6424S-25 and 6515J-31 showed 16S rRNA gene sequence similarities of 92.7–94.8 % to type strains of recognized species of the genus and strain 6424S-61 was closely related to Gsoil 664 (93.9 % similarity). The G+C contents of the DNA of strains 6424S-25, 6515J-31 and 6424S-61 were 44.5, 43.9 and 38.4 mol%, respectively. Major fatty acids of strains 6424S-25 and 6515J-31 were summed feature 4 (iso-C I and/or anteiso-C B), iso-C and C 5. The fatty acid content of strain 6424S-61 mainly comprised iso-C G and iso-C. Comparative analysis of phenotypic and phylogenetic traits indicated that strains 6424S-25 and 6515J-31 represented two novel species of the genus and that strain 6424S-61 should be considered as a novel species of the genus . The names sp. nov. (type strain 6424S-25 =KACC 14118 =NBRC 106134), sp. nov. (type strain 6515J-31 =KACC 14117 =NBRC 106133) and sp. nov. (type strain 6424S-61 =KACC 14119 =NBRC 106135) are proposed for these organisms.

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2010-10-01
2021-10-28
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