Fig. 9.

Low fluid shear phenotypes of WT and ΔydcI mutant strains via RWV culture. The S. Typhimurium WT and ΔydcI mutant strains were grown in the RWV apparatus in low fluid shear (LFS) or control conditions, and the cultures were tested for acid stress resistance (pH 3.5 with citric acid) or oxidative stress resistance (70 mM H₂O₂) in separate assays. The percent survival of the WT and ΔydcI mutant strains for each culture condition in each stress was calculated, and a ratio of the percent survival of each sample to the control condition for each stress is shown. Low fluid shear culture alters stress resistance compared to the control for both the WT and ΔydcI mutant strains.