Relative Susceptibility of Vitis vinifera Cultivars to Vector-Borne Xylella fastidiosa through Time

摘要: Understanding the interactions between pathogen, crop and vector are necessary for development of disease control practices vector-borne pathogens. For instance, resistant plant genotypes can help constrain symptoms due to infections limit pathogen spread by vectors. On other hand, susceptible infection may increase owing their greater quantity, regardless symptom status. In this study, we evaluated under greenhouse conditions relative levels resistance (i.e. relatively lower quantity) versus tolerance less severity) 10 commercial grapevine (Vitis vinifera) cultivars Pierce’s etiological agent, bacterium Xylella fastidiosa. Overall, no correlation was detected quantity severity, indicating existence among-cultivar variation in response infection. Thompson Seedless Barbera were two most among cultivars. Rubired showed least severe categorized as one study. However, within each cultivar degree resistance/tolerance not consistent across sampling dates. These temporal differences susceptibility have important consequences epidemiology effectiveness management protocols.