Journal
ANNUAL REVIEW OF PLANT BIOLOGY, VOL 71, 2020
Volume 71, Issue -, Pages 183-215Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-arplant-042916-040915
Keywords
CO2 fixation; evolution; redox regulation; transcriptional regulation; posttranslational regulation
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Funding
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy [EXC-2048/1, 390686111]
- ERACAPS project C4BREED [WE 2231/20-1]
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C-4 photosynthesis evolved multiple times independently from ancestral C-3 photosynthesis in a broad range of flowering land plant families and in both monocots and dicots. The evolution of C-4 photosynthesis entails the recruitment of enzyme activities that are not involved in photosynthetic carbon fixation in C-3 plants to photosynthesis. This requires a different regulation of gene expression as well as a different regulation of enzyme activities in comparison to the C-3 context. Further, C-4 photosynthesis relies on a distinct leaf anatomy that differs from that of C-3, requiring a differential regulation of leaf development in C-4. We summarize recent progress in the understanding of C-4-specific features in evolution and metabolic regulation in the context of C-4 photosynthesis.
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