The double-inactivation mutants are more sensitive to oxidative stress agents. Wild-type (UI224), ΔuvsBATR, ΔphbA (IM70), ΔphbA ΔuvsB (IM70-14), ΔmshA (IM71), ΔmshA ΔuvsB (IM71-14), ΔcshA (IM72-3), ΔcshA ΔuvsB (IM72-2.14), ΔfhdA (IM73-104), ΔfhdA ΔuvsB (IM73-104.14A), ΔtprA (IM74-10), and ΔtrpA ΔuvsB (IM74-10.14A) strains were grown for 72 h at 37°C in YUU, YUU plus MENA (0.05 mM), and YUU plus PARAQ (2 mM).