Table 2.
Model input parameter values for four cases I–IV that represent two NADP‐ME species and two NAD‐ME species as reported by Ghannoum et al. (2005), and model predicted output variables for each case, either when no photorespiration nor alternative electron and ATP sinks are assumed (before/) or when photorespiration and alternative electron and ATP sinks are considered (after/) (the equation number, if available in Supporting Information Methods S1, for the corresponding calculation is indicated)
| Parameter or variable | NADP‐ME | NAD‐ME | ||
|---|---|---|---|---|
| Sorghum bicolor | Cenchrus ciliaris | Panicum miliaceum | Panicum coloratum | |
| I | II | III | IV | |
| Inputa | ||||
| Leaf [CHL] (µmol Chl m−2) | 579 | 464 | 424 | 425 |
| Fraction of [CHL] that is in BS cells (f bsCHL) | 0.33 | 0.38 | 0.60 | 0.59 |
| Fraction of PSI that is in BS cells (f bsPSI) | 0.37 | 0.39 | 0.24 | 0.46 |
| Fraction of PSII that is in BS cells (α) | 0.01 | 0.04 | 0.17 | 0.35 |
| Output | ||||
| BS : M absorptance ratio (a BS : a M), Eqn C5 | 0.40/0.40 | 0.48/0.48 | 0.92/0.92 | 0.90/0.90 |
| PSICET : PSII ratio (C x : T), Eqn B2 | 0.81/0.69 | 0.78/0.66 | 0.79/0.69 | 0.94/0.84 |
| Fraction of C x in BS cells (β), Eqn B10 | 0.75/0.82 | 0.78/0.84 | 0.32/0.33 | 0.56/0.57 |
| BS : M photosystem ratio | 0.31/0.30 | 0.34/0.33 | 0.27/0.27 | 0.73/0.72 |
| BS : M absorptance ratio per photosystem (k BS : k M), Eqn B9 | 1.30/1.35 | 1.38/1.43 | 3.41/3.43 | 1.23/1.24 |
| Whole‐leaf PSI : PSII ratio, Eqn B12 | 1.66/1.54 | 1.62/1.51 | 1.64/1.54 | 1.79/1.69 |
| PSI : PSII ratio in BS cells | 61.3/56.8 | 15.8/14.7 | 2.32/2.18 | 2.36/2.21 |
| PSI : PSII ratio in M cells | 1.05/0.98 | 1.03/0.96 | 1.50/1.41 | 1.48/1.40 |
| Fraction of M‐absorbed light that drives LET (u), Eqn A8 | 0.90/0.94 | 0.91/0.95 | 0.74/0.77 | 0.74/0.77 |
| Fraction of BS‐absorbed light that drives LET (v), Eqn A5 | 0.03/0.03 | 0.11/0.12 | 0.56/0.58 | 0.55/0.58 |
| Whole‐leaf f CET, Eqn 11 | 0.54/0.51 | 0.54/0.51 | 0.54/0.51 | 0.54/0.51 |
| f CET in BS cells (f CET,BS), Eqn 11a | 0.99/0.99 | 0.95/0.94 | 0.63/0.61 | 0.64/0.62 |
| f CET in M cells (f CET,M), Eqn 11b | 0.19/0.13 | 0.17/0.11 | 0.43/0.40 | 0.43/0.39 |
| BS : M total electron flux ratio | 0.76/0.79 | 0.89/0.91 | 1.08/1.08 | 1.05/1.06 |
| CETBS : (CETBS + CETM) | 0.80/0.86 | 0.83/0.89 | 0.61/0.62 | 0.61/0.62 |
| Fraction of NADPH produced in BS cells (f nadph,BS), Eqn 6 | 0.01/0.01 | 0.05/0.06 | 0.41/0.41 | 0.40/0.40 |
| Fraction of ATP produced in BS cells (f atp,BS), Eqn 5 | 0.35/0.36 | 0.39/0.39 | 0.50/0.50 | 0.49/0.49 |
| Fraction of total BS ATP that is from CET | 0.98/0.98 | 0.92/0.92 | 0.53/0.51 | 0.54/0.51 |
| Fraction of ATP that is from LET | 0.56/0.59 | 0.56/0.59 | 0.56/0.59 | 0.56/0.59 |
| ΦCO2 (mol mol−1), Eqn 14 | 0.071/0.065 | 0.071/0.065 | 0.071/0.065 | 0.071/0.065 |