(a) Morphology of wild-type Col-0, bon1, bon1 mos1, bon1 mos1 smo1 and two independent lines of pHOS15::HOS15 in bon1 mos1 smo1. (b) Growth of bacterial pathogen Pst DC3000 in Col-0, bon1, bon1 mos1 and bon1 mos1 smo1. Statistical analysis was performed with infected plants at 3 DPI (Days Post-Inoculation). (c) DAB staining of Col-0, bon1, bon1 mos1 and bon1 mos1 smo1. (d, e) Analysis of PR1 (d) and SNC1 (e) gene expression in Col-0, bon1, bon1 mos1, bon1 mos1 smo1 by qRT-PCR. Error bars represent S.D. from three biological replicates for (b) or two biological replicates for (d) and (e). Different letters indicate significant difference tested by One-way ANOVA/ Duncan (P < 0.05). Scale bar for (a) and (c), 1 cm.