Volume 10, Issue 3 (fall 2006)
jwss 2006, 10(3): 497-504 |
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J. Shakarami, E. Bazgir, M. Feizian. Inhibition Effects of Five Plant Species Essential Oils on the in Vitro Mycelial Growth of Four Plant Pathogenic Fungi. jwss 2006; 10 (3) :497-504
URL: http://jstnar.iut.ac.ir/article-1-600-en.html
URL: http://jstnar.iut.ac.ir/article-1-600-en.html
Abstract: (18527 Views)
To search for reproducible and environment-friendly antifungal agents, essential oils of five plant species including Myrtus communis, Mentha aquatica, Vitex agnus-castus, Thymus daenensis and Artemisia aucheri were studied for their inhibition effects on the mycelial growth of plant pathogenic fungi including Fusarium oxysporum, Pythium ultimum, Rhizoctonia solani and Gaeumannomyces graminis. The experiment was conducted using a completely randomized design of factorial experiment including three essential oil concentrations and three replications at 25±2 ºC on PDA. Results revealed that R. solani with 48.83 and P.ultimum with 89.62% mean of mycelial growth inhibition were the most resistant and the most susceptible fungi to the essential oils, respectively. The essential oil of M. aquatica and T. daenensis with 93.70 and 92.74% mean of mycelial growth inhibition showed the most inhibition effect and V. agnus-castus with 33.88% was the least mycelial growth inhibitor. The essential oil of M. aquatica and T. daenensis at 20 µl/petri plate (9 cm. in diameter) completely inhibited the mycelial growth of the tested fungi. Considering the high antifungal effect, and low human and environmental hazard of essential oils, it seems that the essential oils may be used for the control of plant pathogenic fungi, or at least they may be adopted as a model for the synthesis of new antifungal agents.
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