Figure 7From: Identification of ireA, 0007, 0008, and 2235 as TonB-dependent receptors in the avian pathogenic Escherichia coli strain DE205BThe expression level of fur in iron-depleted M9 media. The three columns represent the relative gene expression levels of fur in the WT strain, DE205BΔtonB, and DE205BΔtonB/tonB*. The expression level of fur in the mutant strain was significantly downregulated relative to that of the WT strain (P < 0.01).Back to article page