Fig. 4
Similar effects of the trkH80 and rpoS-null mutations on the viability and on the metabolic activity of strains incubated in monoculture. Strains were inoculated 1:500 (time zero) into Pi-limiting medium and further incubated. The numbers of CFU (a, b), the pH (c, d) and the concentrations of glucose (e, f) and of acetate (g, h) were determined between days 1 and 24 of incubation. The curves in panels a, c, e, g for the ancestral strain ENZ535, the evolved strain ENZ1901 and the rpoS strain were previously published [1]