FIG 7.

The C. jejuni Δfur mutant is affected in adhesion (A), invasion (B), and intracellular survival (C) in HCT116 cells relative to the wild-type strain. (A and B) Monolayers of HCT116 cells were infected with the wild-type, Δfur, or Δfur+fur^WT C. jejuni strain, and the degrees of bacterial adherence (A) and invasion (B) are shown. (C) Percent intracellular bacterial survival over a 72-h period for each strain. The data shown are the means ± standard errors from three independent experiments. P values were determined using ANOVA followed by the Bonferroni multiple-comparison test. *, P < 0.05; ns, not significant.