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. 2017 Jan 6;11(5):1179–1188. doi: 10.1038/ismej.2016.195

Figure 1.

Figure 1

PA wild type grows significantly better than BC and the PA cheat in iron-limited medium (***P<0.001). This indicates that the PA cheats have an equalizing fitness effect in mixed communities, as they drag down the overall growth potential of PA relative to BC. As the PA wild type and the PA cheat are isogenic except for genes mediating siderophore production, these results indicate that pyoverdine is the most efficient iron-uptake system in this environment. Bacteria were grown as monocultures (18 replicates) in iron-limited medium for 24 h at 37 °C. Dark and faint symbols represent mean (±95% CI) and individual-replicate number of doublings, respectively.