Selección de bacterias inhibidoras del hongo Diplodia en maíz

Abstract

Los principales agentes causales de la pudrición de la mazorca de maíz en Chiapas, son hongos del género Fusarium y Diplodia. En muestras de maíz recolectadas en diversas partes del estado de Chiapas, se aislaron cepas de bacterias inhibidoras del crecimiento in vitro de Diplodia, que pudiesen servir a futuro para su control biológico. Se evaluaron en laboratorio 44 cepas de bacterias nativas obtenidas de las muestras de maíz, encontrándose seis de ellas con efecto inhibidor del crecimiento de Diplodia.

According to conducted studies, the main causal agents of the ear roth in Chiapas, are fungi of the genus Fusarium and Diplodia. In this work was evaluated in laboratory maize samples collected in various parts of the state of Chiapas, were isolated several strains of bacteria to find some growth inhibiting Diplodia, which could be used for future biological control, finding six of them with a clear inhibiting effect of the growth of Diplodia; in one second stage will be identify mechanism of inhibition and test of its effect in field.