peptoniphilus peptoniphilus peptoniphilus is a genus of bacteria in the phylum bacillota (bacteria). peptoniphilus scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: peptoniphilaceae genus: peptoniphilusezaki et al. 2001 type species p. asaccharolyticus species see text. etymology the name peptoniphilus derives from:neo-latin noun peptonum, peptone; neo-latin adjective philus from greek adjective philos (φίλος) meaning friend, loving; neo-latin masculine gender noun peptoniphilus, friend of peptone, referring to the use of peptone as a major energy source. classification peptoniphilus are gram positive anaerobic cocci that were formerly classified in the genus peptostreptococcus. they are non-saccharolytic, use peptone as a major energy source and produce butyrate. clinical relevance this genus is part of the vaginal and gut microbiota. they have been reported to as present in diabetic skin and soft tissue infections, bone and joint infections, surgical site infections, chorioamnionitis and bloodstream infections. they are typically found as part of polymicrobial infections but are difficult to recover with usual clinical cultures. they have been increasingly reported with the more widespread use of 16s pcr and maldi-tof for identification. they are noted to be linked with an impairment of wound-healing in patients with diabetic foot ulcers if present in abundance during the initial infection. species the genus contains 17 species (including basonyms and synonyms), namely p. asaccharolyticus p. catoniae p. coxii p. duerdenii p. gorbachii p. harei p. ivorii p. koenoeneniae p. lacrimalis p. lacydonensis p. methioninivorax p. olsenii p. senegalensis p. stercorisuis p. timonensis p. tyrrelliae p. urinimassiliensis