Abstract
The information on the extent of postharvest losses of aubergine and the causes of these losses are meager. Fruit rot and wilt are the most serious diseases of aubergine in the tropics and among the most common postharvest diseases of the aubergine are fruit rots and anthracnose. Induction of natural disease resistance (NDR) in harvested horticultural crops using physical, biological and/or chemical elicitors has received increasing attention over recent years, it being considered a preferred strategy for disease management. This study reviews the enhancement of inducible antifungal compounds and suppression of anthracnose diseases in aubergine through bio-elicitors. The results revealed that the anthracnose, caused by Colletotrichum capsici, is one of the major postharvest diseases in aubergine and that pre-inoculation with Fusarium solani, found to be a weaker pathogen in aubergine, delayed the anthracnose disease development by 4 days. Thin layer chromatography bioassays showed that the pre-inoculation with F. solani resulted in greater phytoalexin accumulation and thus, F. solani appears to be an effective elicitor of host natural resistance in aubergine. Purification of the phytoalexin using flash chromatography showed that the compound was lubimin, a sesquiterpenoid of aubergine.
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