RESUMEN
Resumen Objetivo. Evaluar la actividad celulolítica y quitinolítica de los hongos aislados de rizósfera de papa con posibilidades de ser usados para el control biológico de R. solani. Método. Se aislaron y clasificaron los hongos, mediante sus características macroscópicas y microscópicas. Se aplicaron pruebas para evaluar la capacidad celulolítica y quitinolítica de los hongos y se probó su capacidad antagónica frente al fitopatógeno. Se realizó análisis fisicoquímico del suelo del cual se aislaron los hongos de estudio. Resultado. Del total de hongos caracterizados, solamente una cepa de Rhizopus sp determinada como TN8 fue la que presentó la mejor actividad antagónica frente a R. solani, lo cual, permite considerar este hongo como posible agente de biocontrol para el fitopatógeno de estudio.
Abstract Objective. To evaluate the cellulolytic and chitinolytic activity of fungi isolated from potato rhizosphere with possibilities of being used for the biological control of R. solani. Method. The fungi were isolated and classified by their macroscopic and microscopic characteristics. Tests were applied to evaluate the cellulolytic and chitinolytic capabilities of fungi and their antagonistic capabilities against the phytopathogen were tested. Physicochemical analysis of the soil from which the fungi were isolated were also performed. Result. From the total characterized fungi, only one strain of Rhizopus sp was determined as TN8 and this was the only one that presented the best antagonistic activity against R. solani. This result lead us to consider that this fungus is a possible biocontrol agent for the phytopathogen of this study.
