title: The carbon dioxide requirements of anaerobic bacteria.
abstract: Some clinically significant anaerobic bacteria were incubated in pure culture in anaerobic jars containing a range of atmospheric concentrations of CO2. Growth of Clostridium perfringens, C. sporogenes and C. septicum was independent of the amount of CO2. Small supplements of CO2 (0.25%) allowed good growth of the majority of anaerobes studied--an observation contrary to established teaching. The exceptions were Fusobacterium necrophorum which showed an absolute requirement for CO2 of at least 1% and B. melaninogenicus which needed an atmospheric content of 10--40% CO2 for optimal growth. The inclusion of CO2 in the anaerobic jar at a final concentration of 10% is to be recommended for all routine isolation procedures.
mesh_terms: D000191:Actinomycetaceae / Q000254:growth & development*; D001438:Bacteroidaceae / Q000254:growth & development*; D002245:Carbon Dioxide / Q000494:pharmacology*; D003013:Clostridium / Q000254:growth & development*; D003016:Clostridium perfringens / Q000254:growth & development; D003470:Culture Media; D005673:Fusobacterium / Q000254:growth & development; D010459:Peptococcaceae / Q000254:growth & development*; D001443:Prevotella melaninogenica / Q000254:growth & development
chemical_list: D003470:Culture Media; D002245:Carbon Dioxide