Figure 5.

A to C, Kinetics of CO₂ assimilation rate (A), leaf conductance (B), and the ratio of intercellular to ambient CO₂ (C_i/C_a; C) in wild-type and anti-SSU plants with 10% to 15% of wild-type Rubisco during illumination of dark acclimated leaves at an irradiance of 1,000 μmol photons m⁻² s⁻¹ of red light. Plants were grown under an irradiance of 30 μmol photons m⁻² s⁻¹ (LL, squares) or 300 μmol photons m⁻² s⁻¹ (ML, circles). During gas-exchange measurements, light was turned on at time 0. Leaves were acclimated in the dark for a minimum of 20 min before the measurements. Experimental conditions were the same as for Figure 2. Data are the means of measurements on four different plants; error bars represent se and are not shown if smaller than the symbols. Black symbols, wild-type plants; white symbols, anti-SSU plants.