The Evolution of Photorespiratory Glycolate Oxidase Activity
نویسندگان
چکیده
منابع مشابه
The evolution of photorespiratory glycolate oxidase activity.
The first step of photosynthetic carbon fixation is catalyzed by ribulose-1,5bisphosphate carboxylase/oxygenase, which arose when the atmosphere contained virtually no O2. The increase of atmospheric O2 caused by oxygenic photosynthesis gave rise to photorespiratory metabolism, a process whereby O2 substitutes for CO2, causing ribulose-1,5bisphosphate carboxylase/oxygenase to produce the toxic ...
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The genes coding for the core metabolic enzymes of the photorespiratory pathway that allows plants with C3-type photosynthesis to survive in an oxygen-rich atmosphere, have been largely discovered in genetic screens aimed to isolate mutants that are unviable under ambient air. As an exception, glycolate oxidase (GOX) mutants with a photorespiratory phenotype have not been described yet in C3 sp...
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Photorespiration is essential for all organisms performing oxygenic photosynthesis. The evolution of photorespiratory metabolism began among cyanobacteria and led to a highly compartmented pathway in plants. A molecular understanding of photorespiration in eukaryotic algae, such as glaucophytes, rhodophytes, and chlorophytes, is essential to unravel the evolution of this pathway. However, mecha...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2011
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.111.230810