Effetto di chitinasi e taumatina di vite sulla germinabilità di spore fungine

Following the attack of pathogens plants activate various defense mechanisms. Among these is known the accumulation of pathogenesis proteins(PR-proteins). The most expressed in Vitis are the chitinases, with 13 isoforms and responsible for the degradation of the fungal cell wall, and the "thaumatin-like-proteins", proteins that alter the functionality of the cell membrane and of which five types are known. The accumulation of these proteins is increasing during maturation. Guignardia Bidwell, agent of black rot is a major of fungal pathogens of the grapevine, which can affect the leaves, young shoots and above all the clusters in the early stages.