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Tecnología en Marcha
Article . 2016 . Peer-reviewed
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Tecnología en Marcha
Article
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Tecnología en Marcha
Article . 2016
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Actividad antagonista de Gliocladium sp. contra Sclerotium cepivorum.

Authors: Castillo, Humberto; Rojas, Randall; Villalta, Manuel;

Actividad antagonista de Gliocladium sp. contra Sclerotium cepivorum.

Abstract

Algunos géneros fúngicos han sido utilizados para el control de agentes causantes de enfermedades en plantas, por lo que su actividad representa una alternativa para la disminución e incluso la sustitución de químicos sintéticos. Existen hongos antagonistas ampliamente estudiados, como Trichoderma sp., que concurre con otros hongos que poseen un alto potencial como agentes biocontroladores, entre ellos se destaca Gliocladium sp. En este estudio se pretende establecer la capacidad antagonista que tiene Gliocladium contra el patógeno causante de la pudrición blanca de la cebolla, Sclerotium cepivorum. Se logró aislar Gliocladium sp. a partir de una muestra de suelo dedicada al cultivo de cebolla (Allium cepa L.), se subcultivó hasta obtener un cultivo axénico y se realizaron cultivos duales en placas con el hongo y el patógeno. Se determinó que el porcentaje de inhibición del crecimiento radial (PICR) promedio obtenido a los ocho días de exposición (53,66%) no presentaba diferencias significativas (p=0,19) con el obtenido a los 15 días (54,20%) y, dadas las características de inhibición, se presume que el mecanismo de control presentado por la cepa de Gliocladium sp. utilizada responde a la producción de enzimas, metabolitos y posiblemente una mezcla de compuestos orgánicos volátiles capaces de inhibir el crecimiento y desarrollo de S. cepivorum aun sin que sus hifas entren en contacto.

Country
Costa Rica
Related Organizations
Keywords

Aislamiento, Technology, biocontrolador, secondary metabolites, T, aislamiento; biocontrolador; inhibición del crecimiento radial; metabolitos secundarios, inhibición del crecimiento radial, Isolation, aislamiento, metabolitos secundarios, biocontrol, inhibition of radial growth

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
Green
gold