ISSN: 0973-7510

E-ISSN: 2581-690X

A.Q. Assarany1 and A.M. Galal2
1Department of Biology, Faculty of Science, Taibah University, Kingdom Saudi Arabia.
2Department of Botany, Faculty of Science, Zagazig University, Egypt.
J Pure Appl Microbiol. 2008;2(1):187-192
© The Author(s). 2008
Received: 02/03/2008 | Accepted: 18/04/2008 | Published: 30/04/2008

The induction of resistance of Cucumber plants (Cucumis sativa) against cucumber mosaic virus (CMV) by either ethyl alcohol extracts or cultural filtrates of twenty fungal isolates from Al-Madinah AL-Monawarah date palm farms, Kingdom of Saudi Arabia have been investigated( Aspergillus clavatus, A. fumigatus, A. glaucus, A. nidulans, A. niger,
A. terreus, A. versicolor, Penicillium expansum, P. funiculosum, P. griseofulvum,
P. janczewskii, P. janthinellum, P. nigricans, P. notatum, P. rubrum, P. chrysogenum, Botrytis squamosa, B. byssoidea, Fusarium solani
and F. oxysporum). Seeds of cucumber were soaked with either the filterates of cultivated fungi or the ethyl alcohol  extracts of these fungi at different periods. An inhibitory effect on  the infectivity of CMV was recorded. In vitro and in vivo studies on the antiviral activities of  different fungal agents were applied. The  purification of the most potent fungal extract (F. oxysporum) was done using DEAE- cellulose column chromatography and the active substance with high antiviral activity was found to be protienacious in structure.


Fungal extracts, cucumber mosaic virus, induction of resistance

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© The Author(s) 2008. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.