Possibility of control of post-harvest fungal diseases by manipulation of host defence system

Adikaram N.K.B., . (1990) Possibility of control of post-harvest fungal diseases by manipulation of host defence system. [Proceedings Paper]

Many fruit species investigated have been shown to possess natural mechanisms to resist invasion by fungal pathogens before they attain ripening. During ripening these mechanisms often collapse and this apparently allows fungal pathogens to develop post-harvest rotting. Investigations carried out so far revealed that in immature avocado mango green peppers and wood apple the resistance to anthracnose is mediated through antifungal systems pre-formed or phytoalexin type. Treatment of unripe peppers with an elicitor preparation or heat-killed conidia of Glomerella cingulata accumulated capsicannol phytoalexins at levels sufficient to prevent Botrytis cinerea rotting. Various treatments to retain antifungal activity of avocado during ripening have been found to reduce anthracnose development substantially during ripening. These studies open a novel thinking to post-harvest diseases control strategies

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Abstract

Many fruit species investigated have been shown to possess natural mechanisms to resist invasion by fungal pathogens before they attain ripening. During ripening these mechanisms often collapse and this apparently allows fungal pathogens to develop post-harvest rotting. Investigations carried out so far revealed that in immature avocado mango green peppers and wood apple the resistance to anthracnose is mediated through antifungal systems pre-formed or phytoalexin type. Treatment of unripe peppers with an elicitor preparation or heat-killed conidia of Glomerella cingulata accumulated capsicannol phytoalexins at levels sufficient to prevent Botrytis cinerea rotting. Various treatments to retain antifungal activity of avocado during ripening have been found to reduce anthracnose development substantially during ripening. These studies open a novel thinking to post-harvest diseases control strategies

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Item Type:	Proceedings Paper
Additional Information:	4 ill. 2 tables; 16 refs. Summary En
AGROVOC Term:	FRUTALES
AGROVOC Term:	CONTROL DE PLAGAS POSTCOSECHA
AGROVOC Term:	ENFERMEDADES FUNGOSAS
AGROVOC Term:	INMUNIDAD/ ORGANISMOS PATOGENOS
AGROVOC Term:	MADURAMIENTO
AGROVOC Term:	PODREDUMBRES
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/14885

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