Effectiveness of beneficial bacteria-mediated ISR against Botrytis cinerea in relation to priming of defense responses in grapevine

Abstract: Plants have evolved the ability to enhance their basal resistance after perception ofspecific stimuli, such as root colonization by selective rhizobacteria or derived microbialassociatedmolecular patterns. In this study, we examined the differences and similarities in termof the effectiveness of various bacteria with different origins to trigger ISR and to induce orprime some defence responses in grapevine. We especially focused on oxidative burst ingrapevine cell suspensions and systemic production of stilbenic phytoalexins, trans-resveratroland its dehydrodimer ε-viniferin in plants.