Photosynthetic carbon fixation characteristics of fruiting structures of wheat, chickpea and Brassica sp.

Abstract

Activities of some key enzymes of the Calvin cycle and C₄ metabolism, rates of ¹⁴CO₂ fixation in light and dark, and initial products of photosynthetic ¹⁴CO₂ fixation when determined in fruiting structures of wheat and chickpea, indicated that compared to activities of RuBP carboxylase and other Calvin cycle enzymes, the activities of PEP carboxylase and other enzymes of C₄ metabolism were generally much higher in fruiting structures than in the leaf.