Figure 1

FPA negatively regulates plant immunity.
(A) Oxidative burst elicited by flg22 (1 μM) in Col-0, fls2, 35S::FPA, fpa-7 and fpa-8 seedlings. Mean data with standard error from 3 biological replicates are shown. (B) Number of bacteria extracted from leaves of plants 3 days post-spray inoculation with PstDC3000ΔavrPtoΔavrPtoB (OD600 = 0.2; left panel) or 3 days post-syringe infiltration with PstDC3000 (OD600 = 0.002; right panel). Data shown are the mean colony forming units (CFU)/cm2 extracted from leaf discs from five plants per genotype. Standard errors are shown. Asterisks indicate a difference from Col-0 (P < 0.05).