The capacity of RuBP regeneration (Jg) and the Jg per ATP synthase (δ) content at 25°C in antisense plants with a variety of contents of δ-subunit of chloroplast ATP synthase (A and C) and the capacity of RuBP regeneration (Jg) and the Jg per Rieske FeS content at 25°C in antisense plants with a variety of Rieske FeS contents (B and D). Jg was calculated from measurements of CO2 assimilation rate at high CO2 as described in “Materials and Methods.” The regression lines are shown in each figure. Regression coefficient (R2). A, R2 = 0.95. B, R2 = 0.98. C, R2 = 0.80. D, R2 = 0.17. Statistical comparison of regressions shown in A and B showed them to be significantly different at P < 0.00001. WT, Wild type.