Energy transfer from phycobilisomes to photosystem I at 77 K

Autor: Ivo H. M. van Stokkum, Parveen Akhtar, Avratanu Biswas, Petar H. Lambrev

Publikováno v: Frontiers in Plant Science, Vol 14 (2023)

Phycobilisomes serve as a light-harvesting antenna of both photosystem I (PSI) and II (PSII) in cyanobacteria, yet direct energy transfer from phycobilisomes to PSI is not well documented. Here we recorded picosecond time-resolved fluorescence at wav

Externí odkaz: https://doaj.org/article/806ce4f76f2940409c9b2e8763ce382f

Reaction dynamics of the chimeric channelrhodopsin C1C2

Autor: Yusaku Hontani, Marco Marazzi, Katja Stehfest, Tilo Mathes, Ivo H. M. van Stokkum, Marcus Elstner, Peter Hegemann, John T. M. Kennis

Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)

Abstract Channelrhodopsin (ChR) is a key protein of the optogenetic toolkit. C1C2, a functional chimeric protein of Chlamydomonas reinhardtii ChR1 and ChR2, is the only ChR whose crystal structure has been solved, and thus uniquely suitable for struc

Externí odkaz: https://doaj.org/article/55c88734e4454dd4b7fde387a502ba5e

Unraveling the Excited-State Dynamics and Light-Harvesting Functions of Xanthophylls in Light-Harvesting Complex II Using Femtosecond Stimulated Raman Spectroscopy

Autor: Francesco Saccon, Juan M. Artes Vivancos, John T. M. Kennis, Ivo H. M. van Stokkum, Rienk van Grondelle, Alexander V. Ruban, Yusaku Hontani, Miroslav Kloz

Publikováno v: Journal of the American Chemical Society
Journal of the American Chemical Society, 142(41), 17346-17355. American Chemical Society
Artes Vivancos, J M, van Stokkum, I H M, Saccon, F, Hontani, Y, Kloz, M, Ruban, A, van Grondelle, R & Kennis, J T M 2020, ' Unraveling the Excited-State Dynamics and Light-Harvesting Functions of Xanthophylls in Light-Harvesting Complex II Using Femtosecond Stimulated Raman Spectroscopy ', Journal of the American Chemical Society, vol. 142, no. 41, pp. 17346-17355 . https://doi.org/10.1021/jacs.0c04619

Photosynthesis in plants starts with the capture of photons by light-harvesting complexes (LHCs). Structural biology and spectroscopy approaches have led to a map of the architecture and energy transfer pathways between LHC pigments. Still, controver

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f919335b789e7d53de5d291ed71d0460
https://doi.org/10.1021/jacs.0c04619

Harvesting far-red light

Autor: Luca Bersanini, Roberta Croce, Martijn Tros, Gaozhong Shen, Donald A. Bryant, Ming Yang Ho, Ivo H. M. van Stokkum

Publikováno v: Tros, M, Bersanini, L, Shen, G, Ho, M Y, van Stokkum, I H M, Bryant, D A & Croce, R 2020, ' Harvesting far-red light : Functional integration of chlorophyll f into Photosystem I complexes of Synechococcus sp. PCC 7002 ', Biochimica et Biophysica Acta-Bioenergetics, vol. 1861, no. 8, 148206, pp. 1-9 . https://doi.org/10.1016/j.bbabio.2020.148206
Biochimica et Biophysica Acta-Bioenergetics, 1861(8):148206, 1-9. Elsevier

The heterologous expression of the far-red absorbing chlorophyll (Chl) f in organisms that do not synthesize this pigment has been suggested as a viable solution to expand the solar spectrum that drives oxygenic photosynthesis. In this study, we inve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ae8df7ccd6fd18fa228323ea769abe9
https://doi.org/10.1016/j.bbabio.2020.148206

pH dependence, kinetics and light-harvesting regulation of nonphotochemical quenching in Chlamydomonas

Autor: Iryna Polukhina, Roberta Croce, Ivo H. M. van Stokkum, Lijin Tian, Wojciech J. Nawrocki, Xin Liu

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America, 116(17), 8320-8325. National Acad Sciences
Tian, L, Nawrocki, W J, Liu, X, Polukhina, I, Van Stokkum, I H M & Croce, R 2019, ' PH dependence, kinetics and light-harvesting regulation of nonphotochemical quenching in Chlamydomonas ', Proceedings of the National Academy of Sciences of the United States of America, vol. 116, no. 17, pp. 8320-8325 . https://doi.org/10.1073/pnas.1817796116
Proceedings of the National Academy of Sciences

Significance Photosynthetic organisms utilize sunlight as a form of energy. Under low light, they maximize their capacity to harvest photons; however, under excess light, they dissipate part of the harvested energy to prevent photodamage, at the expe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::791db64fc584caad0f8bf032cfd6155d
http://europepmc.org/articles/PMC6486713