FIG. 6.

Growth curves of W3110 cells containing various plasmids at 32 and 42°C. Cultures were grown overnight at 32°C, diluted to an OD₆₀₀ of approximately 0.01, and grown at 32 (A) and 42°C (B). ○, pBR322; ▪, pBR-dnaX; ▴, pBR-dnaX-γ; ▵, pBR-dnaX-τ.