A Structure-Based Model of Energy Transfer Reveals the Principles of Light Harvesting in Photosystem II Supercomplexes

2013 ◽  
Vol 135 (24) ◽  
pp. 9164-9173 ◽  
Author(s):  
Doran I. G. Bennett ◽  
Kapil Amarnath ◽  
Graham R. Fleming
1994 ◽  
Vol 66 (5) ◽  
pp. 1597-1603 ◽  
Author(s):  
S. Savikhin ◽  
H. van Amerongen ◽  
S.L. Kwa ◽  
R. van Grondelle ◽  
W.S. Struve

ChemPhysChem ◽  
2010 ◽  
Vol 11 (6) ◽  
pp. 1289-1296 ◽  
Author(s):  
Marc G. Müller ◽  
Petar Lambrev ◽  
Michael Reus ◽  
Emilie Wientjes ◽  
Roberta Croce ◽  
...  

1992 ◽  
Vol 1102 (2) ◽  
pp. 202-212 ◽  
Author(s):  
Stefan L.S. Kwa ◽  
Herbert van Amerongen ◽  
Su Lin ◽  
Jan P. Dekker ◽  
Rienk van Grondelle ◽  
...  

2021 ◽  
Author(s):  
Makiko Kosugi ◽  
Masato Kawasaki ◽  
Yutaka Shibata ◽  
Kojiro Hara ◽  
Shinichi Takaichi ◽  
...  

Abstract Prasiola crispa, a major green alga in Antarctica, forms layered colonies for survival under the severe terrestrial conditions of Antarctica, which include severe cold, drought, and strong sunlight. As a result of these conditions, the surface cells of P. crispa and other Antarctic organisms face high risk of photodamage. Cells of deeper layer escape from photodamage at the sacrifice of photosynthetic active radiation except infrared. P. crispa achieves effective photosynthesis by low energy far-red light for photosystem II excitation with high efficiency similar to that of visible light. Here, we identified a far-red light-harvesting complex of photosystem II in P. crispa, Pc-frLHC, and proposed a molecular mechanism of uphill excitation energy transfer based on its cryogenic electron-microscopy structure. While Pc-frLHC is associated with photosystem II, it is evolutionarily related to the light-harvesting complex of photosystem I. Pc-frLHC forms a ring-shaped homo-undecamer in which all chlorophyll a molecules are energetically connected and contains chlorophyll a trimers. It seems that the trimers are long-wavelength-absorbing chlorophylls for far-red light at 708 nm, and further absorbance extension is accomplished by Davydov-splitting in dimeric chlorophylls. The chlorophyll network should enable a highly efficient entropy-driven uphill excitation energy transfer using far-red light up to 725 nm.


2019 ◽  
Vol 216 ◽  
pp. 94-115 ◽  
Author(s):  
Shou-Ting Hsieh ◽  
Lu Zhang ◽  
De-Wei Ye ◽  
Xuhui Huang ◽  
Yuan-Chung Cheng

Coarse-grained model for dimeric PSII core complex reveals robust light harvesting through inter-monomer energy transfer and pooling in CP47s.


FEBS Letters ◽  
1985 ◽  
Vol 193 (2) ◽  
pp. 267-270 ◽  
Author(s):  
Tomas Gillbro ◽  
Villy Sundström ◽  
Åke Sandström ◽  
Michael Spangfort ◽  
Bertil Andersson

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