1. Laboratory of Phytopathology (K.C., H.S., B.A., M.H.) and Department of Plant Biotechnology and Genetics (K.C., R.d.R., F.V.B.), Ghent University, B–9000 Ghent, Belgium; Department of Plant Systems Biology (K.C., R.d.R., F.V.B.) and Department for Molecular Biomedical Research (A.V.H., D.V., N.C.), VIB, B–9052 Ghent, Belgium; Plate-forme de Chimie du Végétal, Institut Jean-Pierre Bourgin, UMR1318