Figure 4

Contribution of the Erwinia tracheiphila exlx–gh5 locus to wilt symptom development and plant death. (a) In planta inoculation experiment comparing virulence of Wt, Δexlx–gh5, Δexlx–gh5(cEXLX-GH5), Δexlx and Δexlx(cEXLX) strains. (b) A second independent in planta inoculation experiment comparing virulence of Wt, Δgh5, and Δgh5(cEXLX-GH5) strains. In both (a) and (b), inoculated plants were monitored for first appearance of wilt symptoms in the inoculated leaf, first appearance of systemic wilt symptoms in a second non-inoculated leaf and plant death for 23 days post inoculation (DPI). Summary statistics are in Table 1 and statistical analyses are in Table 2.