TABLE 1.
Sets of constraints for modeling C3, CAM, CAM cycling, and CAM idling.
| Constraints (μmol m–2 s–1) | C3 | CAM | CAM cycling | CAM idling |
| Phloem export | 0.259 | 0.259 | 0.259 | 0 |
| CO2 exchange (light) | Unconstrained | 0 | Unconstrained | 0 |
| CO2 exchange (dark) | Unconstrained | Unconstrained | 0 | 0 |
| O2 exchange (light) | Unconstrained | 0 | Unconstrained | 0 |
| O2 exchange (dark) | Unconstrained | Unconstrained | 0 | 0 |
| RuBisCO carboxylase:oxygenase ratio (light) | 3:1 | 5.15:1 | 3:1 | 5.15:1 |
| RuBisCO carboxylase:oxygenase ratio (dark) | 3:1 | 3:1 | 5.15:1 | 5.15:1 |
Phloem export rate was set based on the predicted value of C3 plants in Shameer et al. (2018). RuBisCO carboxylase:oxygenase ratio was set to 3:1 when stomata is opened [a typical value for C3 plants (Gutteridge and Pierce, 2006)], and 5.15:1 when stomata is closed [the median value from experimental estimates of CAM plants (Lüttge, 2010)] similar to Shameer et al. (2018).