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ONTOLOGY REPORT - ANNOTATIONS


Term:C4 photosynthesis
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Accession:GO:0009760 term browser browse the term
Definition:The combination of atmospheric CO2 with a 3-carbon molecule phosphoenol pyruvate (PEP) in the mesophyll cells to make a 4-carbon acid which is immediately converted to malic acid. The malic acid is then passed across to the bundle sheath cells where it is broken down again to pyruvic acid and CO2. The acid is passed back to the mesophyll cells to be used again, while the CO2 is fed into the reductive pentose-phosphate cycle (Calvin cycle) and converted into sugar and starch.
Synonyms:xref: Wikipedia:C4_carbon_fixation
 only_in_taxon: NCBITaxon:33090 ! Viridiplantae


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Term Annotations click to browse term
  biological_process 20028
    metabolic process 12271
      organic substance metabolic process 11651
        carbon fixation 0
          C4 photosynthesis 0
            NAD-malic enzyme C4 photosynthesis 0
            NADP-malic enzyme C4 photosynthesis 0
            PEP carboxykinase C4 photosynthesis 0
Path 2
Term Annotations click to browse term
  biological_process 20028
    metabolic process 12271
      primary metabolic process 10920
        carbohydrate metabolic process 644
          carbohydrate biosynthetic process 209
            photosynthesis, dark reaction 0
              C4 photosynthesis 0
                NAD-malic enzyme C4 photosynthesis 0
                NADP-malic enzyme C4 photosynthesis 0
                PEP carboxykinase C4 photosynthesis 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.