Fig. 3.

Average in planta catalytic turnover rate, k_cat, of Rubisco sites as a function of the Rubisco content in leaves. Grey diamonds, data for birch from Laisk et al. (2005) and Eichelmann et al. (2004b); the meaning of the other symbols is given in Fig. 2. Sunflower leaves (grey triangles) with exceptionally high k_cat were transferred from low to high growth light. The line was calculated from equation (3).