TOLERANCES OF UNCLASSIFIED MYCOBACTERIA .1. LIMITS OF PH TOLERANCE

Abstract
The limits of pH tolerance of 56 strains of mycobacteria were studied. Saprophytic mycobacteria grow well through the widest range of pH and are able to multiply at the highest pH. Group III organisms (Runyon) grow well at a wider range of pH than do Groups I or II and all groups flourish at a wider range than does H37Rv. The increased range is the result of a better growth in the more acid levels.

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