Mapman visualisation of cell wall and metabolism functions. The over-represented functional categories seen in the differentially expressed geneset following bacterial infection. A false coloured heatmap showing the fold-change response following Xoo. infection, where each coloured square represents the intensity of the fold change response for a single gene. Fold-changes following 24 HPI is shown above those at 96 HPI. Yellow squares indicates universal stress markers, as these genes were seen to be up-regulated following bacterial infection (this study), following parasite, fungal and viral infection [13, 14], as well as following heat, cold, drought and salt stress [17, 18].