Advertisement

No Evidence for a Specific Function of Ca2+ and Cl in Oxygen Evolution of Isolated PSII-Complexes from Thermophilic Cyanobacteria

  • S. Pauly
  • E. Schlodder
  • H. T. Witt

Abstract

Evidence has been presented in the last years that there is a specific requirement for calcium and chloride in the process of water oxidation [1]. Most of these investigations have been performed on PSII from higher plants, where this ion requirement has been found to be dependent on the presence, or rather absence, of the extrinsic 17 and 23 kDa proteins. PSII from cyanobacteria lacks these proteins. Therefore it is of interest to investigate the effect of various salts on photosynthetic water oxidation in PSII-complexes from Synechococcus Sp. This was performed by measuring flash induced oxygen yield. Significant differences compared to higher plants have been observed.

Keywords

Oxygen Evolution Water Oxidation Additional Salt Oxygen Yield Irreversible Inactivation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Homann, P. H. (1987) J. Bioenerg. Biomembr. 19, 105–123PubMedCrossRefGoogle Scholar
  2. [2]
    Schatz, G. H. and Witt, H. T. (1984) Photobiochem. Photobiophys. 7, 1–14Google Scholar
  3. [3]
    Rögner, M., Dekker, J. P., Boekema, E. J. and Witt, H. T. (1987) FEBS Lett. 219, 207–211CrossRefGoogle Scholar
  4. [4]
    Schlodder, E. and Meyer, B. (1987) Biochim. Biophys. Acta 890, 23–31CrossRefGoogle Scholar
  5. [5]
    Sandusky, P. O. and Yocum, C. F. (1983) FEBS Lett. 162, 339–343CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • S. Pauly
    • 1
  • E. Schlodder
    • 1
  • H. T. Witt
    • 1
  1. 1.Max-Volmer-Institut f. biophysikalische u. physikalische ChemieTechnische UniversitätBerlin 12West Germany

Personalised recommendations