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Electronic Journal of Biotechnology
Universidad Católica de Valparaíso
ISSN: 0717-3458
Vol. 15, No. 4, 2012, pp. 1-17
Bioline Code: ej12038
Full paper language: English
Document type: Research Article
Document available free of charge

Electronic Journal of Biotechnology, Vol. 15, No. 4, 2012, pp. 1-17

 en Culturable fungi associated with urban stone surfaces in Mexico City
Páramo-Aguilera, Leandro; Ortega-Morales, Benjamín Otto & Narváez-Zapata, José Alberto

Abstract


Background: Urban surface stones in Mexico City are exposed to a temperate climate and a range of atmospheric conditions ranging from mildly impacted to heavily polluted areas. In this study, we focused on the characterization of the cultivable fungal component of selected biological patinas in the surrounding area of Chapultepec castle, a historic monument in Mexico City. Thirty four representative fungal isolates selected based on distinctive differential macroscopic characteristics out of a total of 300 fungi, were characterized using morphological and molecular approaches.
Results: This identification strategy based on the combination of phenotypic- and molecular-based methodologies allowed us to discriminate the fungal community in some cases down to the species level.
Conclusions: The characterization of this mycoflora revealed the presence of a complex fungal community mainly represented by filamentous fungi belonging to the genera Fusarium check for this species in other resources , Trichoderma check for this species in other resources , Aspergillus check for this species in other resources , Cladosporium check for this species in other resources , Alternaria check for this species in other resources , Mucor check for this species in other resources , Penicillium check for this species in other resources , Pestalotiopsis check for this species in other resources , and the dimorphic fungus Aureobasidium check for this species in other resources , along with the yeast Rhodotorula check for this species in other resources . A specific distribution of fungi could be observed based on the type of biological patina analyzed.

Keywords
aeroterrestrial habitat; fungi; stone surfaces; urban buildings

 
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