Pelobacter propionicus is a species of bacteria that ferments 2,3-butanediol and acetoin. It is Gram-negative, 0.5-0.7x1.2-7 micrometers in size, strictly anaerobic and non-spore-forming. Ott Bd 1 is the type strain.
References
Further reading
External links Type strain of Pelobacter propionicus at BacDive - the Bacterial Diversity Metadatabase