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Factors affecting growth and urease production by Trichophyton spp.

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Abstract

Among Trichophyton spp. examined for urease production, T. rubrum was negative, whereas T. mentagrophytes appeared to be the most active species. Urease was not detected in cell-free culture fluids of the tested fungi. The endocellular urease of the test fungi was essentially constitutive. Moreover, addition of urea to the growth medium of these organisms markedly inhibited their mycelial biomass and ureolytic yield. Environmental factors showed variable effects on the test fungi and there was no correlation between mycelial growth and urease activity of these fungi.

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Authors and Affiliations

  1. Botany Department, Faculty of Science, Assiut University, 71516, Assiut, Egypt

    A. -L. E. Mahmoud, A. A. El-Shanawany & S. A. Omar

  2. Botany and Microbiology Department, Faculty of Science, Al-Azhar University, 71524, Assiut, Egypt

    A. A. El-Shanawany

Authors
  1. A. -L. E. Mahmoud
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  2. A. A. El-Shanawany
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  3. S. A. Omar
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Mahmoud, A.L.E., El-Shanawany, A.A. & Omar, S.A. Factors affecting growth and urease production by Trichophyton spp.. Mycopathologia 135, 109–113 (1996). https://doi.org/10.1007/BF00436460

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  • DOI: https://doi.org/10.1007/BF00436460

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