PJB-2017-580
DETERMINING OF A NEW PROMISING NATURAL ANTIFUNGAL PRODUCT AGAINST PENICILLIUM DIGITATUM
SEDA BALKAN
Abstract
Due to fungal infections, a great amount of food losses occur worldwide. The infections caused by Penicilium digitatum, green mold agent in Citrus fruits, are just one of those losses. In this study, determining a novel environmentally-friendly antifungal product against green mold agent is aimed. 39 plant species, naturally growing in K?rklareli (Turkey) have been scanned in terms of antifungal activity against P. digitatum. Digitalis viridiflora, Medicago lupulina and Sambucus ebulus, inhibited the micelle development of P. digitatum completely (100%), while Lythrum salicaria, Epilobium roseum and Prunella vulgaris inhibited the micelle development over 75%. D. viridiflora has showed the least MIC value (250 �g/ml) against P. digitatum. In SEM analysis, flattening, collapse and wrinkling effects of D. viridiflora on hyphae structure of P. digitatum have been observed. In the lemons treated with 8 mg/ml D. viridiflora aqueous extract, 73.99% regression in the lesion diameters has been observed. As a result, in order to avoid green mold infection caused by P. digitatum occurring in lemon fruits, D. viridiflora can be used as a natural antifungal agent.
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