Vol. 12, Issue 7 (2023)

Bacterial leaf spot is one of the major threats in betel vine production as it can cause economic loss. Endophytes are used in agriculture as a method to boost crop performance due to their capacity to colonize interior host tissues. In the present study, it was observed that accumulation of defense related enzyme and compounds (Peroxidise (PO), polyphenoloxidase (PPO), phenylalanine ammonia lyase (PAL), total phenols, total sugars and proteins) has been increased in betel vine that were treated with endophyte Bacillus velezensis along with pathogen compared to untreated control. The endophyte treated plants had a significantly lower intensity of bacterial leaf spot than untreated control plants and also recorded a higher plant height and more of leaves.