Fig. 7.

(A) Temperature responses of the CO₂ assimilation rate in Flaveria bidentis wild-type and anti-Rubisco plants. Photosynthesis was measured at different leaf temperatures and ambient CO₂ of 370 µbar and 200 mbar O₂, and an irradiance of 1500 µmol m^–2 s^–1. Each point represents the mean (±SE) of measurements on five different leaves. (B) Temperature dependence of the in vitro and in vivo k_cat for Rubisco in wild-type and anti-Rubisco F. bidentis. The in vitro data reflect the activity of the fully carbamylated enzyme; in vivo k_cat is estimated as gross photosynthesis divided by the number of Rubisco catalytic sites. Each value represents the mean (±SE) of four measurements. The data are redrawn from figs 1 and 4 of Kubien et al. (2003)