FIG 5.

Proportions of siderophores produced by UPEC strain CFT073 and derivatives. Production of siderophores secreted into the supernatants of UPEC strain CFT073, mutant strains (ΔryhB, Δfur, and ΔryhB Δfur), and complemented strains (ΔryhB compl., Δfur compl., and ΔryhB Δfur compl.) in iron-poor M63-glycerol minimal medium was quantified by LC-MS analyses. For each strain, results are presented as the percentage of each siderophore produced compared to the total siderophore production level. Results are the mean values and standard deviations of results from three biological experiments.