Morphological varieties of Trichophyton rubrum clinical Isolates

Authors

  • Francisca Hernández-Hernández Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México. México, D.F., México
  • Patricia Manzano-Gayosso Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México. México, D.F., México
  • Erika Córdova-Martínez Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México. México, D.F., México
  • Luis Javier Méndez-Tovar Servicio de Dermatología y Micología, Centro Médico Nacional (CMN) Siglo XXI, IMSS. México, D.F., México
  • Rubén López-Martínez Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México. México, D.F., México
  • Beatriz García de Acevedo Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”. México, D.F., México
  • Rocío Orozco-Topete Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”. México, D.F., México
  • Marco Antonio Cerbón Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México. México, D.F., México

DOI:

https://doi.org/10.33885/sf.2007.3.996

Keywords:

Dermatophytosis, dermatophytes

Abstract

Trichophyton rubrum is the worldwide most frequently isolated anthropophilic
dermatophyte causing superficial mycosis. Several morphological varieties of this
dermatophyte have been reported, making its identification sometimes difficult. Our aim
was to identify and to determine the frequency of the different morphological varieties
among the T. rubrum isolates in Mexico. One hundred and thirty one isolates, obtained from
patients with dermatophytosis were studied. The different morphological varieties were
evaluated by their macroscopic and microscopic features of isolates growing on three
different media, by the urease production and by their in vitro hair perforation capability.
Using these criteria, six morphological varieties were identified, being the most frequent the
“Y”, typical downy, and flava varieties. In this study we found that although T. rubrum presents
several morphological varieties, only three of them were more frequently found among
isolates of Mexico, which could indicate differences in their capacity to cause infection.

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How to Cite

Hernández-Hernández, F., Manzano-Gayosso, P., Córdova-Martínez, E., Méndez-Tovar, L. J., López-Martínez, R., García de Acevedo, B., … Cerbón, M. A. (2016). Morphological varieties of Trichophyton rubrum clinical Isolates. Scientia Fungorum, 3(25), 9–14. https://doi.org/10.33885/sf.2007.3.996

Issue

No. 25 (2007): RMM núm. 25 2007

Section

Original papers

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