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Spo0A negatively regulates the expression of inhA2. Expression of inhA2′-lacZ in strains 407 Cry− (▪, □) (A) and 407 Cry− Δspo0A (•, ○) (B) at 30°C was determined. Open and solid symbols indicate β-galactosidase activity expressed in units/milligram of protein (Miller units) when the strains were grown in LB and HCT, respectively.
