Post harvest decay of apple is caused by

Post-harvest decay of apple is caused by Candida saitoana.
The ability of Candida saitoana to induce systemic resistance in apple fruit against Botrytis cinerea was investigated. To separate the antagonistic activity of C. saitoana from its ability to induce resistance, the antagonist and the pathogen were applied in spatially separated wounds.
In addition to inducing systemic resistance, C. saitoana increased chitinase and beta-1,3-glucanase activities with a higher accumulation in fresh than in stored apples.