title: Stability of Methanobrevibacter smithii populations in the microbial flora excreted from the human large bowel.
abstract: Total anaerobic bacteria and Methanobrevibacter smithii populations were enumerated in fecal specimens from two individuals over 10- and 13-month periods. The ratio of M. smithii to total anaerobic count varied between the individuals, but it was a relatively constant proportion of the large-bowel microbial flora within each individual. Neither a barium enema examination of one subject nor a radical change in the diet of the other had any long-term effect on the methanogen populations.
mesh_terms: D000328:Adult; D000693:Anaerobiosis; D001419:Bacteria / Q000254:growth & development; D001466:Barium Sulfate; D004038:Diet, Reducing; D004733:Enema; D019605:Euryarchaeota / Q000254:growth & development*; D005243:Feces / Q000382:microbiology*; D005260:Female; D006801:Humans; D007420:Intestine, Large / Q000382:microbiology*; D008297:Male; D013997:Time Factors
chemical_list: D001466:Barium Sulfate