Plants contain secondary metabolites with antifungal properties. In fruits they are mostly concentrated in the peel at immature stage and decline during ripening in coincidence with fungal rot development
2009
Key concepts
Scholarcy highlights
- Plants contain secondary metabolites with antifungal properties. In fruits they are mostly concentrated in the peel at immature stage and decline during ripening in coincidence with fungal rot development
- The information on antifungal systems in immature avocado and mango, reviewed here, suggests that they play a role in natural disease resistance
- Resorcinols and gallotannins are inhibitory to major postharvest pathogens, Colletotrichum gloeosporioides causing anthracnose and Botryodiplodia theobromae causing stem-end rot
- The quiescence of C. gloeosporioides in the immature fruit has been attributed to the pre-formed antifungal activity of the peel
- Lipoxygenase activity increases during fruit ripening, while epicatechin levels decline, suggesting that these events are linked to the decrease in di-ene concentrations
- The di-ene concentration can be further enhanced by treatment with biotic and abiotic agents
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