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Evolution of Multidrug Resistance during Staphylococcus aureus Infection Involves Mutation of the Essential Two Component Regulator WalKR

Figure 3

Cell wall thickness of clinical and walKR mutant strains.

Representative electron microscopic images of parental and mutant S. aureus cells. The mean cell wall thickness for each strain is included, based on at least 100 measurements of the cell wall. Statistical analysis of cell wall thickness was performed compared to the parent strains JKD6009 or JKD6004. Note, *** p<0.001; ** p<0.01.

Figure 3