FIG. 7.

Influence of an rsmA mutation on gacA expression. β-Galactosidase activities from a translational gacA′-′lacZ fusion inserted at the Tn7 attachment site of the chromosome were determined in the wild type, PAO1 (□), and the rsmA mutant PAZH13 (▵). Each result is the mean ± standard deviation of the results from three measurements. Bacterial growth reached a plateau at an OD₆₀₀ of about 3.