Propionibacterium is a Gram-positive, anaerobic, rod-shaped genus of bacteria named for their unique metabolism: They are able to synthesize propionic acid by using unusual transcarboxylase enzymes.
Its members are primarily facultative parasites and commensals of humans and other animals, living in and around the sweat glands, sebaceous glands, and other areas of the skin. They are virtually ubiquitous and do not cause problems for most people, but propionibacteria have been implicated in acne and other skin conditions. One study found the Propionibacterium was the most prevalent human skin-associated genus of microorganisms.
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- Bojar, R., and Holland, K. "Acne and propionibacterium acnes." 2004. Clinics in Dermatology 22(5), pg. 375-379.
- Rust, Susanne (4 February 2012). "UC Berkeley Bacteria Study: Research Shows Humans A Major Source Of Germs". Huffington Post. San Francisco. Retrieved 2012-04-06.
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- Making Swiss Cheese - David B. Fankhauser, Ph.D.
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