Letter | Published:

A Micro-method for performing the Phenylalanine Test on Cultures from Multi-carbohydrate Media

Naturevolume 191pages521522 (1961) | Download Citation



THE phenylalanine test is of great value for investigating cultures of organisms in the family Enterobacteriaceae. Organisms in the Proteus group are able to de-aminate the amino-acid, phenylalanine, to form phenylpyruvic acid, whereas members of the other groups in the family are unable to do so. Buttiaux et al. 1 claim that this test is more reliable than the urease test for the identification of Proteus strains.

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  1. 1

    Buttiaux, R., Moriamez, J., and Papavassiliou, J., Ann. Inst. Pasteur, 90, 133 (1956).

  2. 2

    Stewart, D. J., Nature, 183, 1537 (1959).

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  1. Ministry of Agriculture for Northern Ireland and The Queen's University of Belfast

    • D. J. STEWART


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