Mechanism of far-red adaptation in alveolate algae studied by two-dimensional electronic spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00646233" target="_blank" >RIV/60077344:_____/25:00646233 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2666386425002772?pes=vor&utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2666386425002772?pes=vor&utm_source=clarivate&getft_integrator=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.xcrp.2025.102678" target="_blank" >10.1016/j.xcrp.2025.102678</a>

Result language
angličtina
Original language name
Mechanism of far-red adaptation in alveolate algae studied by two-dimensional electronic spectroscopy
Original language description
There is a growing interest in understanding the diverse and still largely unknown mechanisms of far-red light adaptation used by photosynthetic systems, as this knowledge can have significant implications for enhancing photosynthetic yields. In this study, we employ two-dimensional electronic spectroscopy to investigate the primary light-harvesting complex from Chromera velia (CLH) and its far-red adapted oligomeric analog (FR-CLH), both of which lack resolved structural information. Our analysis reveals rapid relaxation in the far-red states of FR-CLH, typical of excitonic aggregates of chlorophylls. Following red band excitation, both samples display energy equilibration in 200 fs, followed by energy transfer to the far-red chlorophyll states in FR-CLH in 874 fs. By integrating these data with existing knowledge, we propose that excitonic interactions from oligomerization create far-red chlorophyll states in FR-CLH and discuss hypotheses regarding the pigment arrangement within the two antennas.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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