FIG. 4.

Comparative growth of W3110parE10 cells containing various plasmids at 32 (A) and 42°C (B). Cultures were grown, serially diluted, and plated as described in Materials and Methods. Lanes 1 to 4, 10⁻³, 10⁻⁴, 10⁻⁵, and 10⁻⁶ dilutions, respectively, of the indicated cultures.