Percent of indigenous gastrointestinal tract microflora that are obligate anaerobes

Value 99.9 %
Organism Human Homo sapiens
Reference Berg RD. The indigenous gastrointestinal microflora. Trends Microbiol. 1996 Nov4(11):430-5. p.431 left column 2nd paragraphPubMed ID8950812
Primary Source Moore WE, Holdeman LV. Human fecal flora: the normal flora of 20 Japanese-Hawaiians. Appl Microbiol. 1974 May27(5):961-79.PubMed ID4598229
Comments Thus, obligate anaerobes (e.g. Bacteroides fragilis) are 100 to 1000-fold more numerous than facultative anaerobes (e.g. Escherichia coli and other coliforms), the organisms commonly cultured as indicators of human fecal contamination.
Entered by Uri M
ID 105706