NDLI: The energy flux theory 35 years later: formulations and applications

Content Provider	Springer Nature Link
Author	Tsimilli Michael, Merope Strasser, Reto J.
Copyright Year	2013
Abstract	Several models have been proposed for the energetic behavior of the photosynthetic apparatus and a variety of experimental techniques are nowadays available to determine parameters that can quantify this behavior. The Energy Flux Theory (EFT) developed by Strasser 35 years ago provides a straightforward way to formulate any possible energetic communication between any complex arrangement of interconnected pigment systems and any energy transduction by these systems. We here revisit the EFT, starting from the basic general definitions and equations and presenting applications in formulating the energy distribution in photosystem (PS) II units with variable connectivity, as originally derived, where certain simplifications were adopted. We then proceed to the derivation of equations for a PSII model of higher complexity, which corresponds, from the formalistic point of view, to the later formulated and now broadly accepted exciton–radical-pair model. We also compare the formulations derived with the EFT with those obtained, by different approaches, in the classic papers on energetic connectivity. Moreover, we apply the EFT for the evaluation of the excitation energy distribution between PSII and PSI and the distinction between state transitions and PSII to PSI excitation energy migration. Our analysis demonstrates that the EFT is a powerful approach for the formulation of any possible model, at any complexity level, even of models that may be proposed in the future, with the advantage that any possible energetic communication or energy transduction can be easily formulated mathematically by trivial algebraic equations. Moreover, the biophysical parameters introduced by the EFT and applicable for any possible model can be linked with obtainable experimental signals, provided that the theoretical resolution of the model does not go beyond the experimental resolution.
Starting Page	289
Ending Page	320
Page Count	32
File Format	PDF
ISSN	01668595
Journal	Photosynthesis Research
Volume Number	117
Issue Number	1-3
e-ISSN	15735079
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-09-17
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Energetic connectivity (grouping) Energy distribution Energy flux Grouping probability Photosynthetic unit Photosystem II models Plant Sciences Plant Physiology Biochemistry Plant Genetics & Genomics
Content Type	Text
Resource Type	Article
Subject	Cell Biology Plant Science Medicine Biochemistry

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