Figure 1.
Disease symptoms on calla lily or cabbage leaves in response to inoculation with Pectobacterium strains isolated from monocot or dicot hosts. (A) Pectobacterium strains PC1 and PC16 (P. aroidearum isolated from Ornithogalum dubium and Zantedeschia aethiopica, respectively), Pb1692 and WPP14 (P. brasiliense and P. carotovorum, both isolated from potato) were infiltrated into calla lily or cabbage leaves (100 µL, 107 cfu/mL sterile DDW) and disease symptoms were evaluated 24 h after inoculation. (B) Leaf discs assessment of calla lily or cabbage inoculated with the same strains as above (10 µL of 108 cfu/mL). Infection was measured as percentage of decayed tissue at 15 h after inoculation. The full-leaf experiment (A) was repeated twice with five replicates and the leaf-disc experiment (B) was repeated twice with 20 replicates for each strain/host combination. Bars represents mean ± standard errors (SE) of decayed area (%). Bars not labeled with the same letter (a–d) are significantly different from each other (one-way ANOVA with post hoc Tukey HSD test, p < 0.05).