Towards a metabolomic characterization of the grapevine response to “flavescence dorée” infection by NMR and LC-MS profiling

Abstract

“Flavescence dorée” (FD) is a major threat to vineyard sustainability in different European grape-growing areas. This quarantine disease involves interactions between plants, leafhopper vectors and FD phytoplasma. It was developed an innovative protocol for the inoculation of FD phytoplasma under controlled conditions and it was shown that there are differences in susceptibility between grapevine varieties. The present study aims at determining the primary and secondary or specialized metabolites whose contents are modified in the grapevine following infection by FD phytoplasmas under controlled conditions to identify metabolites or pathways that are associated with a better resistance to FD. Preliminary results are presented.