We will investigate pattern recognition receptors in crops for durable disease control by focussing on the following areas of research: A) Identification and testing of novel bacterial, fungal and oomycete pathogen-associated molecular patterns (PAMPs) that are recognised by Arabidopsis thaliana and selected crops, e.g. barley, wheat, tomato, grapevine, brassica (P1, P2, P3, P4 and AP1). B) Identification of new pattern recognition receptors (PRRs) in A. thaliana and selected crops, e.g. barley, wheat, grapevine, brassica (P1, P2 P4 and AP1). C) Transformation of A. thaliana PRRs into crops and evaluate the phenotype (P1, P2 and AP2). D) Evaluation of developmental and environmental influences on basal resistance responses in grapevine and a diverse range of cereal and brassica accessions (P2, AP1 and AP2).