Popis: |
The C4 photosynthetic process is a combination of biochemical, anatomical and genetic specialization which concentrates CO2 at the site of carbon fixation, ribulose-1,5-bisphosphate carboxylase/oxygenase. This essentially suppresses photorespiration and allows carbon fixation to proceed at near CO2 saturation. In this review we summarize the three diverse biochemical mechanisms underlying C4 photosynthesis, describe the regulation of individual enzymes in the C4 pathway, discuss the integrated regulation of C4 photosynthesis and how these regulatory processes respond to environmental conditions. |