FIG. 6.

Variations in induction factors during heat stress. For each polypeptide, the induction factor (defined as the ratio of the relative rates of synthesis for stressed and control cells) was determined at 10, 15, 20, and 25 min of adaptation. Each point is the average of two independent experiments. Symbols: •, 184; ▴, 250; ⧫, 390; ▪, 223; ○, 1018; □, 907. Induction factors are plotted in arithmetic scale (left). The kinetics of viability established in Fig. 1 are represented in logarithmic scale (right) for comparison.