An alternative, very efficient metabolic
pathway used by plants living in areas with low levels of carbon dioxide
. They use this pathway to convert carbon dioxide into a form usable during photosynthesis
. Plants in environments with normal carbon dioxide
concentrations use the Calvin cycle
instead of this pathway, which is also called the C4 cycle
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.