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Response of leaf disc photosynthetic O2 evolution to added bicarbonate
| Leaf Stage | 0 mm HCO3 | 1.5 mm HCO3 | 3.0 mm HCO3 |
|---|---|---|---|
| μm O2 m−2 s−1 | |||
| YL | 0.53 ± 0.03 | 1.2 ± 0.16 | 1.6 ± 0.12 |
| EL | 0.36 ± 0.04 | 1.7 ± 0.04 | 2.5 ± 0.16 |
| ML | 0.26 ± 0.05 | 2.4 ± 0.11 | 3.9 ± 0.19 |
Each measurement was obtained over a 15-min period beginning 10 min after addition of bicarbonate or equal volume of water. Values represent means ± se (n = 6).
