In vitro antifungal activity of medicinal plant extracts against Fusarium oxysporum f. sp. Lycopersici race 3 the causal agent of tomato wilt
Isaac, George; M. A. Abu-Tahon;
Abstract
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;
β-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.
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;
β-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.
Other data
Title | In vitro antifungal activity of medicinal plant extracts against Fusarium oxysporum f. sp. Lycopersici race 3 the causal agent of tomato wilt | Authors | Isaac, George ; M. A. Abu-Tahon | Keywords | Ocimum basilicum;Fusarium oxysporum f. sp. lycopersici race 3 in vitro conditions;antifungal activity;hydrolytic enzymes | Issue Date | 2014 | Journal | Acta Biologica Hungarica | DOI | 10.1556/ABiol.65.2014.1.10 |
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