Induced Defense in Avocado Fruits Mediated by Secondary Metabolites Produced by Bacillus atrophaeus B5

Biocontrol agents are an environmentally friendly alternative to chemical pesticides against phytopathogens. The effectiveness of metabolites produced by Bacillus atrophaeus B5 for controlling anthracnose Colletotrichum gloeosporioides in harvested fruit and the possible action mechanisms have been studied. Avocado treated with reduced 54% incidence nearly 70% lesion than untreated fruit. treatment enhanced activities peroxidase, polyphenol oxidase, phenylalanine ammonia-lyase. Additionally, transcription PAL EIN3-like genes related defense were increased. These results suggest that B. enhance disease resistance C. avocado In fruit, induced is priming responses. Metabolites cell-free supernatant could also be a potential biological preservative protection.