Disease resistance in tomato induced by an elicitor derived from cell walls of the fungal pathogen, Botrytis cinerea
2007
Perkovska, G. Yu | Sergienko, V. G. | Grodzinsky, D. M. | Dmitriev, A. P.
Cell walls of the phytopathogenic fungus, Botrytis cinerea were identified for the presence of biotic elicitors. The isolation of carbohydrates from purified mycelial cell walls of B. cinerea (CCW) and the effect of CCW on induction of disease resistance of Lycopersicon esculentum were carried out. CCW, Immunocytophyt and a fungicide, Ridomil Gold, were evaluated for the control of late blight, early blight and nailhead spot, the most damaging diseases of tomato in Ukraine. The results of 2-year greenhouse experiments and field trials demonstrated that foliar spraying of tomato plants with sensitizing concentration of CCW (0.01%) reduced development of infection during the vegetation period and crop losses. Our results indicate that the elicitoractive carbohydrates from cell walls of the fungal pathogen B. cinerea are effective to induce systemic resistance against tomato foliar diseases under greenhouse and field conditions.
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