Oxygen tolerance of anaerobic bacteria isolated from human feces

The large bowel intestinal flora of mammals is made up mostly of O sub(2)-intolerant anaerobic microorganisms which are irreversibly damaged by brief exposure to air. The aim of the authors' work was to investigate the effect of atmospheric O sub(2) on human intestinal anaerobic microorganisms....

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Bibliographic Details
Published in:Current microbiology 1989-07, Vol.19 (1), p.39-43
Main Authors: BRUSA, T, CANZI, E, PACINI, N, ZANCHI, R, FERRARI, A
Format: Article
Language:English
Subjects:
Bacteriology
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Microbiology
Pathogenicity, virulence, toxins, bacteriocins, pyrogens, host-bacteria relations, miscellaneous strains
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Summary:The large bowel intestinal flora of mammals is made up mostly of O sub(2)-intolerant anaerobic microorganisms which are irreversibly damaged by brief exposure to air. The aim of the authors' work was to investigate the effect of atmospheric O sub(2) on human intestinal anaerobic microorganisms. Thirty O sub(2)-intolerant bacterial strains that reached 100% mortality after 120 min of air exposure were isolated. Ten of these strains were tested for their atmospheric O sub(2) sensitivity as a function of air exposure time; all tested microorganisms showed a similar mortality trend on exposure to air. All strains reached 100% mortality in a time range of 100-120 min. The strains examined were identified as belonging to the genera Eubacterium, Peptostreptococcus), and Coprococcus .
ISSN:0343-8651
1432-0991
DOI:10.1007/bf01568901