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

Content Provider	Springer Nature Link
Author	Elsherbiny, Elsherbiny A. Saad, Amany S. Zaghloul, Mona G. El Sheshtawi, Mohamed A.
Copyright Year	2015
Abstract	The inhibitory effects of secondary metabolites of Sclerotium cepivorum against itself were studied both in vitro and in vivo. The highest inhibition of fungal growth and a 98.6 % reduction in the number of sclerotia was obtained with 50 % culture filtrate. No sclerotial germination was observed on media amended with culture filtrates at 10, 25 and 50 %. Methanol extract of mycelia and sclerotia, and ethyl acetate extract of culture filtrate both exhibited over 90 % inhibition of S. cepivorum growth at 1200 ppm. A chloroform extract of culture filtrate resulted in 71.1 % inhibition at 1200 ppm. All extracts completely suppressed the formation and germination of sclerotia at 400, 800 and 1200 ppm. In greenhouse experiments, no disease was observed with the ethyl acetate extract when onion seedlings were dipped in the extract for 4 or 8 h. The GC-MS analysis revealed 28 compounds in the methanol extract. The methanol extract contained mainly hexadecanoic acid methyl ester (31.16 %), whereas 5-hydroxymethylfurfural, HMF, (36.40 %) was the main constituent of the ethyl acetate extract. These results suggest that the secondary metabolites of S. cepivorum are potential and promising antifungal agents for the control of onion white rot. These results can be also applied to reduce the incidence and severity of other diseases in different crops.
Starting Page	843
Ending Page	854
Page Count	12
File Format	PDF
ISSN	09291873
Journal	European Journal of Plant Pathology
Volume Number	142
Issue Number	4
e-ISSN	15738469
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-04-10
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biological control Onion white rot Sclerotium cepivorum metabolites GC-MS Plant Pathology Plant Sciences Ecology Agriculture Life Sciences
Content Type	Text
Resource Type	Article
Subject	Plant Science Horticulture Agronomy and Crop Science

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