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Mycopathologia

, Volume 61, Issue 1, pp 43–48 | Cite as

Submicroscopic morphology of trichophyton mentagrophytes grown at different temperatures

  • Donatella Mares
  • G. L. Vannini
  • Maria P. Fasulo
  • A. Bruni
Article

Abstract

Several modifications were observed in Trichophyton mentagrophytes cultivated at 19° and 37 °C, i.e. nine degrees below and above the optimum of 28 °C. The phenomena included inhibition of the growth rate, changes in the gross aspects of the cultures as well as of the microscopic and submicroscopic morphology of the hyphal cells. At the ultrastructural level, in particular, it was shown that, at the suboptimal temperature, although the organelle structure in both young and aged hyphal cells remained nearly unchanged, unusual bodies of probable storage significance and plasmalemmasomes were formed.

At the supraoptimal temperature, the youngest cells showed a normal organization but were richer in glycogen clusters and enveloped by a cell wall thicker than the ones at the optimal condition. In the cells far from the apex, the endomembrane integrity was lost and consequently an autolytic activity occurred. Degradation phenomena were detectable also at cell wall level. The cytological changes observed were tentatively correlated with a possible different sensitivity of the membrane system at the experimented temperature conditions.

Keywords

Cell Wall Membrane System Normal Organization Ultrastructural Level Young Cell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Dr. W. Junk bv - Publishers 1977

Authors and Affiliations

  • Donatella Mares
    • 1
  • G. L. Vannini
    • 1
  • Maria P. Fasulo
    • 1
  • A. Bruni
    • 1
  1. 1.Istituto di Botanica dell'Universitá di FerraraFerraraItaly

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