FIG 2.

Effect of sodA deletion from APEC strain E058 on sensitivity to oxidative stress. (A) Growth curves of sodA mutant, complementation, and wild-type strains. Strains E058 (wild type), E058 ΔsodA (sodA deletion mutant), and ReE058 ΔsodA (complementation strain) were grown in Luria-Bertani broth with or without 10 mM H₂O₂ at 37°C, and their growth was determined by measurement of the optical density at 600 nm (OD₆₀₀). (B) The survival rates of strains in 10 mM H₂O₂ for 30 min at 37°C. Data represent the averages of the results from three independent assays (**, P < 0.01).