Propionibacterium propionicus

Propionibacterium propionicus (previously known as Arachnia propionica) is a Gram positive, aerotolerant anaerobic species of Propionibacterium, found as part of the normal human oral flora. Kaori, Tanaka-Bandoh; Watanabe, Kunitomo; Kato, Naoki; Ueno, Kazue (1997). 'Susceptibilities of Actinomyces Species and Propionibacterium propionicus to Antimicrobial Agents'. Clinical Infectious Diseases. 25 (SUPPL.2): S262–S263. doi:10.1086/516187. PMID 9310699.