Acetitomaculum is a genus in the phylum Bacillota (Bacteria). The single species is an acetogenic bacteria from the bovine rumen.
The genus Acetitomaculum was originally created to describe strains of bacteria isolated from a mature Hereford crossbred steer fed a typical high forage diet.[1] They were isolated in a screen for acetate-producing bacteria extracted from the steer rumen.
The name of the genus is derived from the Latin noun acetum, meaning vinegar, combined with the Latin noun tomaculum, a kind of sausage. Together they form Acetitomaculum, literally a kind of vinegar sausage. The name of the type species, A. ruminis is derived from the Latin genitive noun ruminis, meaning "of the rumen".
Members of Acetitomaculum are Gram-positive rods which can utilize formate, glucose, and carbon monoxide.
The genus contains a single species, A. ruminis, which is the type species of the genus.