Figure 4.

TolQ-induced cell filamentation occurs independent of TolR and TolA. Stained preparations of the W3110 ∆tol derivatives RA1027 (ΔtolQ), RA1028 (ΔtolR), and RA1038 (ΔtolA) bearing a plasmid carrying the tolQ gene under the control of the pBAD promoter grown for 24 h at 37°C with aeration in Miller LB supplemented with 100 μg mL⁻¹ ampicillin and either no l-arabinose or 0.1% (w/v) l-arabinose are shown. All panels are displayed at the same relative magnification, with a bar representing 10 μm provided in each panel for scale.