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The polarization model in bacterial photosynthesis
Author(s) -
Borisov A.Yu.,
Fok M. V.
Publication year - 1999
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216549900201113
Subject(s) - excited state , photosynthetic reaction centre , photosynthesis , polarization (electrochemistry) , chemical physics , dimer , dipole , energy transfer , chemistry , atomic physics , molecular physics , physics , photochemistry , nuclear magnetic resonance , quantum mechanics , biochemistry
The widely accepted model of reaction center /RC/ functioning is proved to come into contradiction with some recent data. In particular, it cannot explain why only a minor part of electronic excitations (≈10%) escapes from excited RC special pairs back to antenna BChls. Therefore we believe that the model must be substantially modernized. In 1981 we developed a new model/1,2/. We suggested a femtosecond state to precede primary e‐transfer reaction due to reorientation of water molecule dipole in the electric field of excited RC dimer. This mechanism is responsible for energy trapping before the primary e‐transport occurs. During last years his mechanism got support from various experimental works. Now this polarization model claims to fit all reliable experimental data at least in bacterial photosynthesis.