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Growth of the L. monocytogenes EGD, ΔdegU, and degU(D55N) strains at 37°C in BHI broth in the presence of 5% ethanol. Overnight cultures of the respective strains were diluted 1:50 in BHI broth supplemented with 5% ethanol. The optical densities (in Klett units) were determined at the indicated time points. The growth curve represents the means of results of four independent experiments. Error bars indicate the standard deviations from the means.
