Photosystem I pp 361-386 | Cite as

Transient EPR Spectroscopy as Applied to Light-Induced Functional Intermediates Along the Electron Transfer Pathway in Photosystem I

  • Dietmar Stehlik
Part of the Advances in Photosynthesis and Respiration book series (AIPH, volume 24)


In the pursuit to understand biological function in fundamental processes such as photo-induced charge separation along a chain of electron carriers as in Photosystem I (PS I), detailed knowledge of protein-cofactor interactions is desired in real time. Today, every promising time resolved molecular spectroscopic method is scrutinized, adapted, and exploited to provide that knowledge. The primary processes in photosynthetic charge separation involve the sequential generation of paramagnetic intermediates in the form of radical ion pairs. Hence, magnetic resonance techniques are a specific method of choice and promise the most detailed insight into protein-induced molecular interactions.


Electron Spin Echo Envelope Modulation Electron Spin Polarization Electron Spin Echo Paramagnetic Intermediate Phytyl Tail 
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© Springer 2006

Authors and Affiliations

  • Dietmar Stehlik
    • 1
  1. 1.Fachbereich PhysikFreie Universität BerlinBerlinGermany

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