Figure 5

Visual comparison of wilt symptoms in squash seedlings after inoculation with either the Δexlx–gh5 mutant or wild type Erwinia tracheiphila. (a) Non-inoculated squash seedling with no wilt symptoms (b) Squash seedling inoculated with wild type E. tracheiphila that has developed systemic wilt symptoms (c) Representative symptoms caused by inoculation with the Δexlx–gh5 mutant strain, where wilt often remains localized to the inoculated leaf without causing systemic wilt symptoms.