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Ontology Browser

Term:
Parent Terms Term With Siblings Child Terms
amino acid salvage +   
nucleoside salvage +   
nucleotide salvage +   
oxidative photosynthetic carbon pathway 
photorespiration +  
A light-dependent catabolic process occurring concomitantly with photosynthesis in plants (especially C3 plants) whereby dioxygen (O2) is consumed and carbon dioxide (CO2) is evolved. The substrate is glycolate formed in large quantities in chloroplasts from 2-phosphoglycolate generated from ribulose 1,5-bisphosphate by the action of ribulose-bisphosphate carboxylase; the glycolate enters the peroxisomes where it is converted by glycolate oxidase to glyoxylate which undergoes transamination to glycine. This then passes into the mitochondria where it is decarboxylated forming one molecule of serine for every two molecules of glycine. This pathway also exists in photosynthetic bacteria.
phytol salvage 
purine-containing compound salvage +   
pyridoxal 5'-phosphate salvage +   
pyrimidine-containing compound salvage +   

Synonyms
Xrefs: MetaCyc:PWY-181 ;   Wikipedia:Photorespiration
Only In Taxon: NCBITaxon:2 ! Bacteria ;   NCBITaxon:33090 ! Viridiplantae ;   NCBITaxon:33682 ! Euglenozoa
Definition Sources: ISBN:0198506732

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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.