Fig. S5.

Net CO₂ assimilation rates in response to intercellular CO₂ concentrations, C_i. Single leaves of RCAR6-3 (open squares), RCAR10-4 (open triangles), wild type (filled circles) were measured at high photosynthetic photon flux density (1,500 μmol⋅m⁻²⋅s⁻¹) and well-watered conditions (Ψ > −0.03 bar). The net CO₂ assimilation rates at ambient CO₂ concentration (400 μmol⋅mol⁻¹) and the corresponding C_i value are highlighted in red (n ≥ 5 biological replicates per line, two technical replicates per data point, mean ± SEM).