Ultrafast Excitation Energy Transfer Dynamics in the LHCII–CP29–CP24 Subdomain of Plant Photosystem II

We measure the two-dimensional electronic spectra of the LHCII(M)-CP29-CP24 complex in photosystem II (PSII) and provide the first study of the ultrafast excitation energy transfer (EET) processes of an asymmetric and native light-harvesting assembly of the antenna of PSII. With comparisons to LHCII...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Do Thanh Nhut
Nguyen Hoang Long
Akhtar Parveen
Zhong Kai
Jansen Thomas L. C.
Jasper Knoester
Stefano Caffarri
Lambrev Petar
Tan Howe-Siang
Dokumentumtípus: Cikk
Megjelent: 2022
Sorozat:JOURNAL OF PHYSICAL CHEMISTRY LETTERS 13 No. 19
Tárgyszavak:
doi:10.1021/acs.jpclett.2c00194

mtmt:32820803
Online Access:http://publicatio.bibl.u-szeged.hu/27444
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520 3 |a We measure the two-dimensional electronic spectra of the LHCII(M)-CP29-CP24 complex in photosystem II (PSII) and provide the first study of the ultrafast excitation energy transfer (EET) processes of an asymmetric and native light-harvesting assembly of the antenna of PSII. With comparisons to LHCII, we observe faster energy equilibrations in the intermediate levels of the LHCII(M)-CP29-CP24 complex at 662 and 670 nm. Notably, the putative "bottleneck" states in LHCII exhibit faster effective dynamics in the LHCII(M)-CP24-CP29 complex, with the average lifetime shortening from 2.5 ps in LHCII to 1.2 ps in the bigger assembly. The observations are supported by high-level structure-based calculations, and the accelerated dynamics can be attributed to the structural change of LHCII(M) in the bigger complex. This study shows that the biological functioning structures of the complexes are important to understand the overall EET dynamics of the PSII supercomplex. 
650 4 |a Fizikai tudományok 
700 0 1 |a Nguyen Hoang Long  |e aut 
700 0 1 |a Akhtar Parveen  |e aut 
700 0 1 |a Zhong Kai  |e aut 
700 0 1 |a Jansen Thomas L. C.  |e aut 
700 0 1 |a Jasper Knoester  |e aut 
700 0 1 |a Stefano Caffarri  |e aut 
700 0 1 |a Lambrev Petar  |e aut 
700 0 1 |a Tan Howe-Siang  |e aut 
856 4 0 |u http://publicatio.bibl.u-szeged.hu/27444/1/32820803.pdf  |z Dokumentum-elérés