RT Journal Article SR Electronic(1) A1 Nagai, Fumiko A1 Morotomi, Masami A1 Sakon, Hiroshi A1 Tanaka, RyuichiroYR 2009 T1 Parasutterella excrementihominis gen. nov., sp. nov., a member of the family Alcaligenaceae isolated from human faeces JF International Journal of Systematic and Evolutionary Microbiology, VO 59 IS 7 SP 1793 OP 1797 DO https://doi.org/10.1099/ijs.0.002519-0 PB Microbiology Society, SN 1466-5034, AB A novel, strictly anaerobic, non-spore-forming, Gram-negative coccobacillus (strain YIT 11859T) was isolated from human faeces. Biochemically, this strain was largely unreactive and was asaccharolytic. Growth of strain YIT 11859T in peptone-yeast extract broth produced no visible turbidity, and a trace amount of propionate was detected as an end product of metabolism. 16S rRNA gene sequence analysis showed that strain YIT 11859T was related most closely to the type strains of Sutterella species, with 90.8–88.0 % sequence similarity. Phylogenetic analysis of these and other related sequences confirmed that strain YIT 11859T was phylogenetically most closely associated with Sutterella species, but formed a separate cluster, indicating that strain YIT 11859T represents a novel member of the family Alcaligenaceae. Fatty acid analysis demonstrated the presence of a high concentration of C18 : 1 ω9c (75 % of the total). The main respiratory quinones were menaquinone (MK–6) and methylated menaquinone (MMK-6). The G+C content of the DNA was 49.8 mol%. These results suggest that strain YIT 11859T represents a novel species of a new genus, for which the name Parasutterella excrementihominis gen. nov., sp. nov. is proposed. The type strain of Parasutterella excrementihominis is YIT 11859T (=DSM 21040T =JCM 15078T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.002519-0