Meccanismi di resistenza alla verticilliosi e caratterizzazione di varietà meridionali di olivo: dati preliminari sulla fisiologia dell'interazione olivo Verticillium dahliae Kleb.

Physiology of Verticillium dahliae Kleb. and olive interaction: preliminary data. Titolo in inglese in corsivo – Inoculations experiment were performed with two strains of Verticillium dahliae characterized as defoliating (VD312D) or not defoliating (VD315ND) pathotypes, ‘Frantoio’ (resistant) and ‘Leccino’ (susceptible) olive plants. The interaction plant/pathogen was evaluated as: total phenols, carotenoids, chlorophylls, hydrogen peroxide, ascorbic acid, generic peroxidases, and ascorbate peroxidase activity. Inoculated plants showed the typical pathway associate to a stress. The two pathotypes are also able to produce in vitro phytotoxins. Some of these secondary metabolites should be involved on biochemical and physiological alterations associated to verticillium wilt symptoms on olive trees (leaves wilting and defoliation