FIG. 2.

Amount of C_i taken up by the mutant cells during incubation with ¹⁴CO₂ (hatched bars) for 10 s or with H¹⁴CO₃⁻ (open bars) for 20 s in the light. Each value is shown as a percentage of the value obtained for WT cells (259 nmol of CO₂/mg of Chl per 10 s and 473 nmol of HCO₃⁻/mg of Chl per 20 s), and the error bars indicate standard deviations (n = 3). Cells grown at pH 8.0 were suspended in the same medium as for Fig. 1.