In Vitro Antifungal Activity of Medicinal Plant Extracts against Fusarium Oxysporum f. sp. Lycopersici Race 3 the Causal Agent of Tomato Wilt


Medicinal plant extracts of five plants; Adhatoda vasica, Eucalyptus globulus, Lantana camara, Nerium oleander and Ocimum basilicum collected from Cairo, Egypt were evaluated against Fusarium oxysporum f. sp. lycopersici race 3 in vitro conditions using water and certain organic solvents. The results revealed that cold distilled water extracts of O. basilicum and E. globulus were the most effective ones for inhibiting the growth of F. oxysporum f. sp. lycopersici. Butanolic and ethanolic extracts of the tested plants inhibited the pathogen growth to a higher extent than water extracts. Butanolic extract of O. basilicum completely inhibited the growth of F. oxysporum f. sp. lycopersici at concentrations 1.5 and 2.0% (v/v). Butanolic extracts (2.0%) of tested plants had a strong inhibitory effect on hydrolytic enzymes; ß-glucosidase, pectin lyase and protease of F. oxysporum f. sp. lycopersici. This study has confirmed that the application of plant extracts, especially from O. basilicum for controlling F. oxysporum f. sp. lycopersici is environmentally safe, cost effective and does not disturb ecological balance. Investigations are in progress to test the efficacy of O. basilicum extract under in vivo conditions.


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Correspondence to G. S. Isaac.

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Isaac, G.S., Abu-Tahon, M.A. In Vitro Antifungal Activity of Medicinal Plant Extracts against Fusarium Oxysporum f. sp. Lycopersici Race 3 the Causal Agent of Tomato Wilt. BIOLOGIA FUTURA 65, 107–118 (2014).

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  • Ocimum basilicum
  • Fusarium oxysporum f. sp. lycopersici race 3 in vitro conditions
  • antifungal activity
  • hydrolytic enzymes