Polygalacturonase inhibiting proteins from Allium porrum L. and their role in plant tissue against fungal endo-polygalacturonases

allium ampeloprasum allium porrum botrytis allii disease resistance enfermedades de las plantas enfermedades fungosas fungal diseases gibberella fujikuroi host parasite relations leeks maladie des plantes maladie fongique pathogenese pathogenesis pathogens plant diseases poireau poligalacturonasa polygalacturonase proteine proteins puerro resistencia a la enfermedad sclerotinia sclerotiorum sclerotium cepivorum