Excitation migration in fluctuating light-harvesting antenna systems

作者: Jevgenij Chmeliov , Gediminas Trinkunas , Herbert van Amerongen , Leonas Valkunas

DOI: 10.1007/S11120-015-0083-3

关键词:

摘要: Complex multi-exponential fluorescence decay kinetics observed in various photosynthetic systems like photosystem II (PSII) have often been explained by the reversible quenching mechanism of charge separation taking place reaction center (RC) PSII. However, this description does not account for intrinsic dynamic disorder light-harvesting proteins as well their fluctuating dislocations within antenna, which also facilitate repair RCs, state transitions, and process non-photochemical quenching. Since fluctuations result varying connectivity between pigment–protein complexes, they can lead to non-exponential excitation kinetics. Based on presumption, we recently proposed a simple conceptual model describing diffusion continuous medium accounting possible variations transfer pathways. In current work, is further developed then applied describe originating from very diverse antenna systems, ranging PSII sizes LHCII aggregates even entire thylakoid membrane. all cases, complex are perfectly reproduced relevant time scale without assuming any radical pair equilibration at side quencher, but using just few parameters reflecting mean energy rate overall average organization antenna.

参考文章(54)
Robert E. Blankenship, Molecular mechanisms of photosynthesis ,(2002)
Martin B. Plenio, Gregory S. Engel, Yasser Omar, Masoud Mohseni, Quantum Effects in Biology Quantum Effects in Biology. ,(2014)
Grzegorz Raszewski, Thomas Renger, Light harvesting in photosystem II core complexes is limited by the transfer to the trap: can the core complex turn into a photoprotective mode? Journal of the American Chemical Society. ,vol. 130, pp. 4431- 4446 ,(2008) , 10.1021/JA7099826
Ismael Moya, Mariuccia Silvestri, Olivier Vallon, Gianfelice Cinque, Roberto Bassi, Time-resolved fluorescence analysis of the photosystem II antenna proteins in detergent micelles and liposomes. Biochemistry. ,vol. 40, pp. 12552- 12561 ,(2001) , 10.1021/BI010342X
Jevgenij Chmeliov, Gediminas Trinkunas, Herbert van Amerongen, Leonas Valkunas, Light harvesting in a fluctuating antenna Journal of the American Chemical Society. ,vol. 136, pp. 8963- 8972 ,(2014) , 10.1021/JA5027858
Marc G. Müller, Petar Lambrev, Michael Reus, Emilie Wientjes, Roberta Croce, Alfred R. Holzwarth, Singlet Energy Dissipation in the Photosystem II Light‐Harvesting Complex Does Not Involve Energy Transfer to Carotenoids ChemPhysChem. ,vol. 11, pp. 1289- 1296 ,(2010) , 10.1002/CPHC.200900852
Rienk van Grondelle, Vladimir I. Novoderezhkin, Energy transfer in photosynthesis: experimental insights and quantitative models. Physical Chemistry Chemical Physics. ,vol. 8, pp. 793- 807 ,(2006) , 10.1039/B514032C
Erica Belgio, Matthew P. Johnson, Snježana Jurić, Alexander V. Ruban, Higher Plant Photosystem II Light-Harvesting Antenna, Not the Reaction Center, Determines the Excited-State Lifetime—Both the Maximum and the Nonphotochemically Quenched Biophysical Journal. ,vol. 102, pp. 2761- 2771 ,(2012) , 10.1016/J.BPJ.2012.05.004
Roberta Croce, Herbert van Amerongen, Light-harvesting and structural organization of Photosystem II: From individual complexes to thylakoid membrane Journal of Photochemistry and Photobiology B-biology. ,vol. 104, pp. 142- 153 ,(2011) , 10.1016/J.JPHOTOBIOL.2011.02.015