Some effects of o-phenanthroline on electron transport in chromatophores from photosynthetic bacteria.

@article{Jackson1973SomeEO,
  title={Some effects of o-phenanthroline on electron transport in chromatophores from photosynthetic bacteria.},
  author={J. Barry Jackson and Richard J. Cogdell and Antony R. Crofts},
  journal={Biochimica et biophysica acta},
  year={1973},
  volume={292 1},
  pages={
          218-25
        }
}
The midpoint potentials of the primary electron acceptors in chromatophores from Rhodopseudomonas spheroides and Chromatium have been studied by titrating the laser-induced P605 and cytochrome c oxidations, respectively. Both midpoint potentials are pH dependent (60 mV/pH unit). o-Phenanthroline shifts the midpoint potentials of the primary acceptors, by +40 mV in Rps spheroides and +135 mV in Chromatium. A similar though less extensive change in midpoint potential was observed in the… CONTINUE READING