RT Journal Article SR Electronic(1) A1 Sakamoto, Mitsuo A1 Suzuki, Natsuko A1 Matsunaga, Naohisa A1 Koshihara, Kimihito A1 Seki, Masayasu A1 Komiya, Hideaki A1 Benno, YoshimiYR 2009 T1 Parabacteroides gordonii sp. nov., isolated from human blood cultures JF International Journal of Systematic and Evolutionary Microbiology, VO 59 IS 11 SP 2843 OP 2847 DO https://doi.org/10.1099/ijs.0.010611-0 PB Microbiology Society, SN 1466-5034, AB Three bacterial strains that had been isolated from human blood cultures, MS-1T, MS-2 and MS-3, were characterized for their phenotypic and biochemical features, cellular fatty acid profiles, menaquinone profiles and phylogenetic positions based on 16S rRNA gene sequence analysis. 16S rRNA gene sequence analysis showed that the isolates were members of the genus Parabacteroides. These isolates were most closely related to Parabacteroides goldsteinii JCM 13446T, with 95.9 % 16S rRNA gene sequence similarity. The levels of sequence similarity among the three strains were 99.7–100 %. The isolates were obligately anaerobic, non-pigmented, non-spore-forming, non-motile, Gram-negative and rod-shaped. The strains grew on media containing 20 % bile. These strains could be differentiated from P. goldsteinii by their ability to ferment l-arabinose and inabilities to ferment cellobiose, l-rhamnose and trehalose or to hydrolyse aesculin. The major menaquinone of the isolates was MK-10. Based on these data, we propose a novel Parabacteroides species, Parabacteroides gordonii sp. nov. The type strain is MS-1T (=JCM 15724T =CCUG 57478T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.010611-0