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- Title
The Aerobic Growth of <em>Propionibacterium acnes</em> in Primary Cultures from Skin.
- Authors
Evans, Charles A.; Mattern, Kathy L.
- Abstract
Although <em>Propionibacterium acnes</em> ordinarily grows as an anaerobe, this organism was commonly seen on aerobic primary cultures (directly from skin) of the forehead, axilla, deltoid area, and antecubital fossa. On subculture, strains from aerobic primary cultures showed their normal anaerobic state. On repeated tests of the foreheads of 7 subjects over periods of 1 to 4 yr, 24% of all cultures were positive for propionibacteria (<em>P. acnes</em>) on aerobic culture. This phenomenon was equally common in cultures from those with relatively sparse or dense populations of <em>P. acnes</em> on the skin surface. Several different patterns of aerobic growth were observed: satellitism, profuse growth at one dilution and none on the next higher dilution, and proportionate growth in successive dilutions. These different growth patterns indicate that more than one mechanism is operative in stimulating the aerobic growth of propionibacteria. Whether one or more of these mechanisms is operative <em>in vivo</em>, we do not know, but it appears that they do not account for the great individual differences in population density of <em>P. acnes</em> on such sites as the forehead.
- Subjects
CUTIBACTERIUM acnes; ANAEROBIC bacteria; AXILLA; PROPIONIBACTERIACEAE; CULTURES (Biology); GRAM-positive bacteria
- Publication
Journal of Investigative Dermatology, 1979, Vol 72, Issue 2, p103
- ISSN
0022-202X
- Publication type
Article
- DOI
10.1111/1523-1747.ep12530309