SUMMARY: In the fluid culture of Streptococcus pneumoniue in glucose + serum broth the pa.rt played by the serum appeared to be solely the regulation of pH value, and may be substituted by a suitable amount of sodium carbonate. The reason for the autolysis experienced in the fluid culture of pneumococci would appear to be due to hydrogen peroxide production. The addition of cysteine to a glucose + carbonate broth precluded the autolytic effect either by the cysteine giving an anaerobic condition of growth or by destroying HO.


Article metrics loading...

Loading full text...

Full text loading...



  1. Holt L. B. 1962; The growth-factor requirements of Haemophilus influenzae . J. gen. Microbiol 27:317
    [Google Scholar]
  2. Stokes E. J. 1955 Clinical Bacteriology p. 271 London: Edward Arnold (Publishers) Ltd;
    [Google Scholar]
  3. Wright H. D. 1933; The importance of adequate reduction of peptone in the preparation of media for the pneumococcus and other organisms. J. Path. Bad 37:257
    [Google Scholar]

Data & Media loading...

Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error