Efficiency assessment of the antifungal metabolites from Sclerotium cepivorum against onion white rot disease

摘要: The inhibitory effects of secondary metabolites Sclerotium cepivorum against itself were studied both in vitro and vivo. highest inhibition fungal growth a 98.6 % reduction the number sclerotia was obtained with 50 culture filtrate. No sclerotial germination observed on media amended filtrates at 10, 25 %. Methanol extract mycelia sclerotia, ethyl acetate filtrate exhibited over 90 S. 1200 ppm. A chloroform resulted 71.1 All extracts completely suppressed formation 400, 800 In greenhouse experiments, no disease when onion seedlings dipped for 4 or 8 h. GC-MS analysis revealed 28 compounds methanol extract. contained mainly hexadecanoic acid methyl ester (31.16 %), whereas 5-hydroxymethylfurfural, HMF, (36.40 %) main constituent These results suggest that are potential promising antifungal agents control white rot. can be also applied to reduce incidence severity other diseases different crops.