RT Journal Article SR Electronic(1) A1 Le Roy, Tiphaine A1 Van der Smissen, Patrick A1 Paquot, Adrien A1 Delzenne, Nathalie A1 Muccioli, Giulio G. A1 Collet, Jean-François A1 Cani, Patrice D.YR 2019 T1 Butyricimonas faecalis sp. nov., isolated from human faeces and emended description of the genus Butyricimonas JF International Journal of Systematic and Evolutionary Microbiology, VO 69 IS 3 SP 833 OP 838 DO https://doi.org/10.1099/ijsem.0.003249 PB Microbiology Society, SN 1466-5034, AB A Gram-negative, strictly anaerobic, non-spore forming, non-motile, non-pigmented bacterial strain, designated H184T, was isolated from human faeces. 16S rRNA gene sequence analysis showed that strain H184T represents a member of the genus Butyricimonas . Strain H184T is related to but distinct from Butyricimonas virosa JCM 15149T and Butyricimonas paravirosa JCM 18677T, with 16S rRNA gene sequence similarities of 96.32 and 96.24 %, respectively. Strain H184T shared 90.50 % hsp60 gene sequence similarity to B. virosa JCM 15149T and B. paravirosa JCM 18677T. Growth occurs between 25 and 42 °C with an optimum at 37 °C. Bile and NaCl concentration range allowing growth are 0–3.75 % and 0–1.8 %, respectively. pH range for growth is 5.5–8. The strain produced propionate as the major end product from glucose. The major cellular fatty acids of strain H184T were iso-C15 : 0 (63.5 %) and iso-C17 : 0 3-OH (12.8%). The major menaquinone of the strain was MK-10 (86 %). DNA G+C content of the isolate H184T was 44.2 mol%. The genome-based comparison between strain H184T and B. virosa JCM 15149T by pairwise average nucleotide identity indicated a clear distinction with a score of 87.22. On the basis of these data, strain H184T represents a novel species of the genus Butyricimonas , for which the name Butyricimonas faecalis sp. nov. is proposed. The type strain of B. faecalis is H184T (DSM 106867T, LMG 30602T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.003249