FIG. 4.

Residual protein synthesis, after inhibition of mRNA synthesis with rifampin, in exponentially growing and stationary-phase cultures. At time zero rifampin (0.1 μg ml⁻¹) was added to the culture, and at various times the protein synthesis was determined by determining the rate of incorporation of [³⁵S]methionine. Rates are given relative to the rate at time zero. ○, exponential-phase culture; •, 20-h-carbon-starved, stationary-phase culture.