Fig. 4From: Iron-regulated gene ireA in avian pathogenic Escherichia coli participates in adhesion and stress-resistanceExpressions of Fe acquisition genes. Expressions of Fe acquisition genes of the wild-type strain DE205B, mutant strain DE205BΔireA and complementary strain DE205BCΔireA were tested by qPCR. The relative expression levels in the different mutant strains were calculated using the 2-△△Ct methodBack to article page