intermediate metabolite which is formed during the light independent reaction in photosynthesis is
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Explanation:
Complete question is "intermediate metabolite which is formed during the light independent reaction in photosynthesis, explain."
Answer:
Light-dependent reactions synthesize ATP and the reducing agent NADPH. "Light-independent reactions," then use NADPH and ATP to reduce and phosphorylate oxidized atmospheric carbon to sugar phosphate levels.
The evolution of C4 photosynthesis is not evenly distributed in the plant kingdom. The situation is particularly interesting for Brassicaceae because the family does not contain C4 species but several C3–C4 intermediates, mainly from the genus Moricandia. Studying the leaf anatomy, gas exchange parameters, metabolism, and transcriptome of the two intermediate C3–C4 Moricandia species, M. arvensis and M. suffruticosa, and their close C3 relative, M. moricandioides, allowed us to unravel the specific C3–C4 traits of these Moricandia lineages. The reduced CO compensation points in these lines were accompanied by anatomical adaptations, such as the centripetal concentration of organelles in the bundle sheath, and metabolic adaptations, such as balancing C and N metabolism between mesophyll and bundle sheath cells in multiple ways. The evolution from C3 to C3-C4 was probably promoted first by the loss of one copy of the glycine decarboxylase P protein, followed by the dominant activity of the bundle shell-specific element in its promoter. In contrast to recent models, installation of the C3–C4 pathway was not accompanied by increased activity of the C4 cycle. Our results suggest that metabolic constraints related to N metabolism or anatomical constraints related to vein density may have limited the evolution of C4 in Morikandia.
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