FIG. 2.

Glutamate and acetate pool levels in E. coli cells upon treatment with acetate. Pools of acetate and glutamate were measured in parallel incubations at pH_o 6, as described in Materials and Methods. Acetate (8 mM) was added at zero time. Symbols: •, glutamate; □, acetate. The data are drawn from several experiments with overlapping sample times to enable rapid kinetics determinations to be performed.