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UTI89ΔcyaA and UTI89Δcrp are sensitive to nitrosative stress and methyl viologen but resistant to H2O2. Growth of UTI89, UTI89ΔcyaA, and UTI89Δcrp in MES-LB broth (A), MES-LB broth + 1 mM ASN (B), MES-LB broth + 1 mM H2O2 (C), LB broth (D), and LB broth containing 1 mM MV (E). Growth curves show the means of results from a single experiment and are representative of at least three independent experiments carried out in quadruplicate.
