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The morphology of ∆tol strains is altered when grown in low salt medium. Stained preparations of W3110 (“wild type”) and the ∆tol derivatives RA1038 (ΔtolA), RA1028 (ΔtolR), and RA1027 (ΔtolQ); grown for 24 h at 37°C with aeration in either normal Miller LB or modified Miller LB lacking added sodium chloride are shown. All panels are displayed at the same relative magnification, with a bar representing 10 μm provided in each panel for scale.
