FIG 2.

RT-qPCR reveals increased expression of chuA and cfrA in C. jejuni Δfur+fur^ΔS2 and Δfur compared to that in the C. jejuni wild-type and Δfur+fur^WT strains. There was no difference in the expression levels of chuA and cfrA between the C. jejuni Δfur+fur^ΔS2 and Δfur mutants. The data shown are the means ± standard errors from three biological experiments each with three technical replicates. P values were determined using a Student unpaired t test. The dotted lines represent the 1.5-fold cutoff value. NS, not significant.