FIG. 8.

Effect of an rsmZ deletion on expression of the aprA and hcnA genes. (A) β-Galactosidase activities of a chromosomal aprA"-"lacZ translational fusion and growth were measured in the rsmZ⁺ strain CHA805 without (◊, ⧫) and with extract (○, •) and in the rsmZ mutant CHA812 without (□, ▪) and with extract (▵, ▴). (B) β-Galactosidase activities of a chromosomal hcnA"-"lacZ translational fusion and growth were determined in the rsmZ⁺ strain CHA207 without (◊, ⧫) and with extract (○, •) and in the rsmZ mutant CHA811 without (□, ▪) and with extract (▵, ▴). Open symbols, β-galactosidase; solid symbols, OD₆₀₀. Each value is the average from three different cultures ± standard deviation.