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Photoinhibition of Photosynthetic Bacteria

  • Robyn E. Cleland
  • Deborah Rees
  • David A. Walker
  • Peter Horton

Abstract

Photoinhibition of higher plants encompasses a range of phenomena, many of which stem from the requirement to harmlessly dissipate excess light energy. These responses to light stress are manifest as a decrease in the quantum yield of photosynthesis and a quenching of chl fluorescence and primarily affect PS II. In intact plants a number of processes have been suggested to protect the photosynthetic apparatus from the potentially harmful effects of excessive light when dissipation through photosynthesis itself is exceeded. These include ΔpH [1], phosphorylation [2] and the xanthophyll cycle [3]. When the capacity of these processes is exceeded direct damage to a component or components involved in the photochemistry of PS II takes place [4,5,6].

Keywords

Methyl Viologen Photosynthetic Bacterium Xanthophyll Cycle Cyclic Electron Flow Rhodobacter Capsulatus 
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.

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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Robyn E. Cleland
    • 1
  • Deborah Rees
    • 1
  • David A. Walker
    • 1
  • Peter Horton
    • 1
  1. 1.Robert Hill InstituteUniversity of SheffieldSheffieldUK

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