Table 1.
Maximal oxygen evolution activity (V max) and Ci affinity, K (0.5) values for wild-type D66 and cia8 mutant cells
Cells were grown on high CO2 for 48 h and acclimated to low CO2 for 4 h.
| V max (μmol O 2 mg Chl –1 h –1 ) | K (0.5) Ci (μM) | |||
|---|---|---|---|---|
| D66 | Cia8 | D66 | Cia8 | |
| pH 7.3 high CO2 cells | 166 (±3.3) | 155 (±4.5) | 95(±2.8) | 158 (±2.9) |
| pH 7.3 low CO2 cells | 160 (±7.8) | 150 (±5.3) | 20 (±2.7) | 60 (±4.7) |
| pH 9.0 low CO2 cells | 92.7 (±1.5) | 90 (±5.2) | 110 (±5.0) | 320 (±10.5) |
For Vmax, all means are not significantly different P>0.1 (α=0.05). For K(0.5) Ci, the means are significantly different from each other P<0.001 (α=0.05). In parenthesis, ±SEM; n=3.