Table 3.
CO2 compensation points (Γ) determined under low photorespiratory (1.84 kPa pO2) and photorespiratory (18.4 kPa pO2) conditions on gdch-KD and WT plants
| Plant-type | pO2 | Γ |
|---|---|---|
| (kPa) | (Pa) | |
| gdch-KD | 1.84 | 0.25±0.06 |
| 18.4 | 5.48±0.04 | |
| WT | 1.84 | 0.62±0.12 |
| 18.4 | 4.54±0.18 | |
| Significance | Plant type | P=0.055 |
| pO2 | P<0.001 | |
| Plant type×pO2 | P=0.001 |
Values are the mean ±SE (n=3 for gdch-KD at a pO2 of 18.4 kPa; n=4 otherwise). Significance (P<0.05) for the effects of plant type, pO2, and plant type×pO2 interaction was evaluated by SAS PROC MIXED.