Molecular, phenotypic and histological analysis reveals a multi-tiered immune response and callose deposition in stone fruit rootstocks (Prunus spp.) against Pseudomonas syringae pv. syringae (Pss) infection

•A novel leaf disk assay discriminates between resistant and sensible stone fruit rootstocks to Pss infection.•A multi-tiered immune response is activated in Prunus rootstocks by Pss infection.•The mechanical wounding promotes the differential accumulation of callose in Prunus rootstocks. Bacterial...

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