Letter | Published:

Difference between the Catalases of Acid-fast Bacilli

Abstract

IT is well known fact that acid-fast bacilli, virulent and rendered resistant to isonicotinic acid hydrazide become catalase-negative. The saprophytic bacilli, on the other hand, grown in even high concentrations of isonicotinic acid hydrazide always preserve at least some residual catalase activity1,2. This difference implies that there are different catalases in the above-mentioned strains of acid-fast bacilli.

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References

  1. 1

    Bonicke, R., Naturwiss., 41, 430 (1954).

  2. 2

    Kwiek, S. (unpublished experiments).

  3. 3

    Tysarowski, W., and Kwiek, S., Amer. Rev. Tuberc. (in the press).

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