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Inductions of the NADPH-dependent nitroreductase. The induction of NADPH:furantoin nitroreductase by paraquat was explored as described in Materials and Methods. Bars 1, 3, and 5, without exposure to paraquat; bars 2, 4, and 6, with exposure to paraquat. Bars 1 and 2, parental strain; bars 3 and 4, ΔsoxR strain; bars 5 and 6, soxR constitutive strain.
