Fig. 6.

Exogenously applied LPE increases plant resistance to Pseudomonas syringae. a Differentially regulated genes after LPE-treatment were pooled and used to generate a functional protein interaction network by the use of STRING (version 10.0) within the Cytoscape environment. Interconnected clusters contain targets involved in senescence (yellow), ROS metabolism (blue, red) and MAP kinase signaling (green). b Overview of four-week-old WT plants, after mock- and LPE-pretreatment, followed by PstDC3000 spray-inoculation. c WT (Col) plant, were challenged with PstDC3000 after LPE- or mock-pretreatment. Three biological replicates of ten plants (n = 30) were spray-inoculated with a bacterial suspension of OD₆₀₀ = 0.2, the density of colony-forming units (CFU) was analyzed 2, 48, 96 and 154 h post-inoculation (hpi). Statistical significance was analyzed by one-way ANOVA, asterisks indicate significant difference, n.s., non-significant; ** p ≤ 0.01; ***p ≤ 0.001. Error bars show ± SEM