Abstract
This article represents a summary of our contemporary understanding of carbon dioxide assimilation in photosynthesis, including both the oxygen-evolving (oxygenic) type characteristic of cyanobacteria, algae and higher plants, and the non-oxygen-evolving (anoxygenic) type characteristic of other bacteria. Mechanisms functional in the regulation of the reductive pentose phosphate cycle of oxygenic photosynthesis are emphasized, as is the reductive carboxylic acid cycle-the photosynthetic carbon pathway functional in anoxygenic green sulfur bacteria. Thioredoxins, an ubiquitous group of low molecular weight proteins with catalytically active thiols, are also described in some detail, notably their role in regulating the reductive pentose phosphate cycle of oxygenic photosynthesis and their potential use as markers to trace the evolutionary development of photosynthesis.
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Abbreviations
- NADP-GAPDH-NADP:
-
glyceraldehyde 3-phosphate dehydrogenase
- FBPase:
-
fructose 1,6-bisphosphatase
- FTR:
-
ferredoxin-thioredoxin reductase
- Rubisco:
-
ribulose 1,5-bisphosphate carboxylase/oxygenase
- SBPase:
-
sedoheptulos 1,7-bisphosphatase
- PRK:
-
phosphoribulokinase
- NADP-MDH-NADP:
-
malate dehydrogenase
- CF1-ATPase:
-
chloroplast coupling factor
- G6PDH:
-
glucose 6-phosphate dehydrogenase
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Buchanan, B.B. Carbon dioxide assimilation in oxygenic and anoxygenic photosynthesis. Photosynth Res 33, 147–162 (1992). https://doi.org/10.1007/BF00039177
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DOI: https://doi.org/10.1007/BF00039177