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. 2000 Jan 18;97(2):859–864. doi: 10.1073/pnas.97.2.859

Figure 4.

Figure 4

Growth-phase and CtrA dependence of β-galactosidase activities of orfg2′∷′lacZ plasmid-borne gene fusions. (A) Maps of the orfg2′∷′lacZ fusions used to investigate GTA gene expression. (B) β-galactosidase specific activities. The cell samples indicated left of the graph designate: Y262, plasmid-free Y262; Y262(pYNP), Y262 containing plasmid pYNP; Y262(pYP), Y262 containing plasmid pYP; YCKF(pYP), YCKF containing plasmid pYP; and YCKF(pCTRA, pYP), YCKF containing plasmids pCTRA and pYP. Cells were harvested over the growth phase at a, mid-log phase; b, late-log phase; c, early stationary phase; and d, late stationary phase.