Acidity of the Thylakoid Lumen in Plastids Makes Sense from an Evolutionary Perspective

@article{Lee2004AcidityOT,
  title={Acidity of the Thylakoid Lumen in Plastids Makes Sense from an Evolutionary Perspective},
  author={R. E. Lee and Paul Kugrens},
  journal={Photosynthetica},
  year={2004},
  volume={37},
  pages={609-614}
}
An acid pH in the lumen of chloroplast thylakoids is necessary in order to derive the required amount of CO2 to account for the observed rates of carbon fixation. We point out that the endosymbiotic derivation of the chloroplast from a cyanobacterium would have resulted in the lumen of the thylakoid having an acid pH. The thylakoids of cyanobacteria are continuous with the plasma membrane, resulting in the lumen of the thylakoid being open to the outside of the cell. Endosymbiosis resulted in… CONTINUE READING