ISHS Acta Horticulturae 343: Physiological Basis of Postharvest Technologies
ANTIFUNGAL COMPOUNDS IN THE AVOCADO FRUIT PEEL AND THEIR RELATION TO ANTHRACNOSE DEVELOPMENT |
| Authors: | N.K.B. Adikaram, N.A. Egodawela, A. Karunaratne |
| DOI: | 10.17660/ActaHortic.1993.343.5 |
| Abstract:
Anthracnose disease in ripe avocados originates from latent infections at immature stages. Latency has been shown to be due to the presence of antifungal activity of the fruit peel. We recently characterized three more antifungal principles 1,2,4-trihydroxyheptadec-16-yne, 1,2,4-trihydroxyheptadec-16-ene and 1-acetoxy-2, 4-dihydroxyheptadec-16-ene from the fruit peel. These three together with the two previously described diene and monoene constitute the total antifungal activity of the unripe fruit peel. All these compounds decline in concentration during ripening to non-toxic levels. The relative toxicity of the three compounds and their concentrations are discussed in relation to latency and lesion development during ripening. | |
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