(a) Morphology of Col-0, hos15-2, hda9-1 and hos15-2 hda9-1. Scale bar, 1 cm. (b) Growth of bacterial pathogen Pst DC3000 in Col-0, hos15-2, hda9-1 and hos15-2 hda9-1. Error bars represent S.D. from three biological replicates. Statistical test was performed with infected plants at 3 DPI (Days Post Inoculation). Different letters indicate significant difference tested by One-way ANOVA/ Duncan (P < 0.05).