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Induction of nitrate reductase levels in SSP. M. tuberculosis was grown aerobically in DTA medium with 5 mM NaNO3, and nitrite concentrations were determined at intervals. Growth (measured by OD580) (solid symbols) and nitrite levels (open symbols) of the wild-type strain (circles) and strain RVW3 narK2::aphI (triangles) are shown.
