info:eu-repo/semantics/article
Distribution and frequency of the microflora associated with uredospores of Hemileia vastatrix Berk. and Br.
Distribución y frecuencia de la microflora asociada a uredoesporas de Hemileia vastatrix Berk. and Br.
Registro en:
10.46429/jaupr.v79i3-4.4310
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Resumen
For the study of the microflora associated with uredospores of Hemileia vastatrix, coffee plantations in the areas of Mayagüez, San Sebastián and Las Marias were sampled. Samples were taken during the four seasons of the year, and the microflora associated with uredospores of the coffee rust was isolated and identified. Six fungal species and four genera of bacteria were isolated. The fungal species were Verticillium lecanii, Cladosporium cladosporioides, Cladosporium oxysporum, Aspergillus niger, Fusarium oxysporum and Penicillium spp. The bacteria belong to the genera Pseudomonas, Citrobacter, Micrococus and Bacillus. All microorganisms were consistently found in association with the uredospores throughout the year, but their frequency varied. Verticillium lecanii, C. cladosporioides and Pseudomonas spp. were the most frequently isolated. Para determinar la microflora asociada a las uredoesporas de Hemileia vastatrix, se tomaron muestras en cafetales en los municipios de Mayagüez, San Sebastián y Las Marías. Las muestras se tomaron en las cuatro estaciones del año y se aisló e identificó la microflora asociada a las uredoesporas de la roya del cafeto. Se aislaron seis especies de hongos y cuatro géneros de bacterias. Los hongos encontrados fueron Verticillium lecanii, Cladosporium cladosporioides, Cladosporium oxysporum, Aspergillus niger, Fusarium oxysporum y Penicillium spp. Los géneros de bacterias fueron Pseudomonas, Citrobacter, Micrococus y Bacillus. Indistintamente de la época en la cual se tomaron las muestras, todos los microorganismos se encontraron asociados a las uredoesporas aunque con frecuencia variable. Verticillium lecanii, C. cladosporioides y Pseudomonas spp. fueron los microorganismos que se aislaron con mayor frecuencia.
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