Antifungic Activity In Vitro Of Secondary Metabolites Of Bacillus Cereus Against Colletotrichum Gloesporioides

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Lina Chamorro Anaya , Alexander Pérez Cordero , Donicer E. Montes Vergara


The proliferation of diseases in the avocado crop has become a limiting factor in yield and production. The anthracnose disease of the avocado crop has generated large economic losses in the agricultural sector. One of the strategies commonly used by farmers to control the disease is the application of agrochemicals, but these can contaminate the environment and many microorganisms have acquired resistance. Rhizophytic bacteria are considered as a tool to control pathogens through the production of secondary metabolites. The aim of the present study was to evaluate in vitro the concentrated fraction of secondary metabolites produced by Bacillus cereus against Colletotrichum gloesporioides. The secondary metabolites produced by Bacillus cereus against Colletotrichum gloesporioides were characterized by gas chromatography coupled to mass spectrometry (GC-MS). The metabolites extracted from Bacillus cereus showed an inhibition percentage of 48% and geraniol, geranate and sulcatone were identified, which showed in vitro antagonism against C. gloesporioides, a phytopathogen of agricultural interest in avocado crops. The production of microbial secondary metabolites may be an alternative to replace agrochemicals in the future.

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