Hydrogen Peroxide Production in Photosystem II Preparations

  • Wolfgang P. Schröder
  • Hans-Erik Åkerlund


A photosystem II (PS-II) associated hydrogen peroxide production has recently been reported (1,2). It was found that when inside-out thylakoids or detergent prepared PS-II particles from spinach were illuminated (without any addition of electron acceptors or other redox substances) they produced H2O2, and that the production was linearly increased by illumination. The production was found to be inhibited by DCMU and heat treatment. The site of the PS-II associated H2O2 production was, however, not clarified. The production was found to be stimulated by NaCl-wash treatment known to release the 16 and 23 kDa proteins. This suggested the involvement of the donor-side of PS-II. If this is the case the substrate for the produced H2O2 would be H2O.


Heavy Water Acceptor Side Increase Oxygen Concentration Mehler Reaction High Oxygen Level 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Wolfgang P. Schröder
    • 1
  • Hans-Erik Åkerlund
    • 1
  1. 1.Department of BiochemistryUniversity of LUNDLundSweden

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