Regulation of phosphoenolpyruvate carboxylase activity in maize leaves.

@article{Doncaster1987RegulationOP,
  title={Regulation of phosphoenolpyruvate carboxylase activity in maize leaves.},
  author={Helen D. Doncaster and Richard C. Leegood},
  journal={Plant physiology},
  year={1987},
  volume={84 1},
  pages={
          82-7
        }
}
The aim of this work was to investigate how light regulates the activity of phosphoenolpyruvate carboxylase in vivo in C(4) plants. The properties of phosphoenolpyruvate carboxylase were investigated in extracts which were rapidly prepared (in less than 30 seconds) from darkened and illuminated leaves of Zea mays. Illumination resulted in a significant decrease in the S(0.5)(phosphoenolpyruvate) but there was no change in V(max). The form of the enzyme from illuminated leaves was less sensitive… CONTINUE READING
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