RT Journal Article SR Electronic(1) A1 Weon, Hang-Yeon A1 Kim, Byung-Yong A1 Hong, Seung-Beom A1 Jeon, Young-Ah A1 Koo, Bon-Sung A1 Kwon, Soon-Wo A1 Stackebrandt, ErkoYR 2009 T1 Massilia niabensis sp. nov. and Massilia niastensis sp. nov., isolated from air samples JF International Journal of Systematic and Evolutionary Microbiology, VO 59 IS 7 SP 1656 OP 1660 DO https://doi.org/10.1099/ijs.0.006908-0 PB Microbiology Society, SN 1466-5034, AB Two bacterial isolates, designated strains 5420S-26T and 5516S-1T, were recovered from air samples collected in Suwon, Korea. Cells of both strains were aerobic, Gram-negative, motile rods. Phylogenetically, these strains were positioned within the radius of the genus Massilia. 16S rRNA gene sequence analysis showed that the strains shared 97.3 % sequence similarity and had sequence similarities of 94.9–98.1 % with respect to type strains of species belonging to the genus Massilia. In DNA–DNA hybridization tests, the two strains showed <39 % relatedness with respect to strains of closely related species of the genus Massilia and 27 % relatedness to each other. Both strains contained Q-8 as the predominant isoprenoid quinone and possessed summed feature 3 (comprising C16 : 1 ω7c and/or iso-C15 : 0 2-OH) as the major fatty acid. Strain 5516S-1T was found to contain the fatty acid C20 : 0 (in small amounts), a feature that served to distinguish it from both 5420S-26T and recognized members of the genus Massilia. The DNA G+C contents of 5420S-26T and 5516S-1T were 67.8 and 66.6 mol%, respectively. Phylogenetic, phenotypic and chemotaxonomic data accumulated in this study revealed that 5420S-26T and 5516S-1T represent novel species of the genus Massilia, for which the names Massilia niabensis sp. nov. (type strain 5420S-26T =KACC 12632T =DSM 21312T) and Massilia niastensis sp. nov. (type strain 5516S-1T =KACC 12599T =DSM 21313T) are proposed, respectively., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.006908-0