FIG. 4.
Susceptibility of the E. chrysanthemi 3937 wild type (♦) and the phoP (▪) and phoQ (○) mutants to thionin. Relative growth is expressed as the percentage of optical density attained by the cultures after 6 h in the presence of the indicated peptide concentration with respect to the optical density attained in the absence of the peptide. Results show the means and standard errors of three replicates.