The oxygen and carbon dioxide compensation points of C3 plants: possible role in regulating atmospheric oxygen.

@article{Tolbert1995TheOA,
  title={The oxygen and carbon dioxide compensation points of C3 plants: possible role in regulating atmospheric oxygen.},
  author={N. E. Tolbert and Christina Benker and Ewald Beck},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1995},
  volume={92 24},
  pages={11230-3}
}
The O2 and CO2 compensation points (O2 and CO2) of plants in a closed system depend on the ratio of CO2 and O2 concentrations in air and in the chloroplast and the specificities of ribulose bisphosphate carboxylase/oxygenase (Rubisco). The photosynthetic O2 is defined as the atmospheric O2 level, with a given CO2 level and temperature, at which net O2 exchange is zero. In experiments with C3 plants, the O2 with 220 ppm CO2 is 23% O2; O2 increases to 27% with 350 ppm CO2 and to 35% O2 with 700… CONTINUE READING

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