ArticleNature chemistry2022
Excitation energy transfer and vibronic coherence in intact phycobilisomes.
Article in Nature chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 31 citations in OpenAlex.
- Electron transport reactions of cyanobacterial photosynthesis and state-of-the-art in vivo measurement techniques.Plant physiology · 2026Review
- Disordered light-harvesting aggregates can host functional vibronic couplings at room temperature.Nature communications · 2026Article
- Quantum Life Science: A Paradigm for Life Science Research.ACS nano · 2026Review
- Ultrafast, remote-controlled protonation reaction enables structural changes in a phytochrome.Science advances · 2025Article
- Unveiling long-range forces in light-harvesting proteins: Pivotal roles of temperature and light.Science advances · 2025Article
- Intramolecular charge transfer and the function of vibronic excitons in photosynthetic light harvesting.Photosynthesis research · 2024Review
- Resonant Vibrational Enhancement of Downhill Energy Transfer in theThe journal of physical chemistry letters · 2024Article
- Development of artificial photosystems based on designed proteins for mechanistic insights into photosynthesis.Protein science : a publication of the Protein Society · 2024Review
- Optically accessible long-lived electronic biexcitons at room temperature in strongly coupled H- aggregates.Nature communications · 2024Article
- Sub-100-fs energy transfer in coenzyme NADH is a coherent process assisted by a charge-transfer state.Nature communications · 2024Article
- Inter-subunit energy transfer processes in a minimal plant photosystem II supercomplex.Science advances · 2024Article
- Phycobilisome's Exciton Transfer Efficiency Relies on an Energetic Funnel Driven by Chromophore-Linker Protein Interactions.Journal of the American Chemical Society · 2023Article
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The phycobilisome is an oligomeric chromoprotein complex that serves as the principal mid-visible light-harvesting system in cyanobacteria. Here we report the observation of excitation-energy-transfer pathways involving delocalized optical excitations of the bilin (linear tetrapyrrole) chromophores in intact phycobilisomes isolated from Fremyella diplosiphon. By using broadband multidimensional electronic spectroscopy with 6.7-fs laser pulses, we are able to follow the progress of excitation energy from the phycoerythrin disks at the ends of the phycobilisome's rods to the C-phycocyanin disks along their length in <600 fs. Oscillation maps show that coherent wavepacket motions prominently involving the hydrogen out-of-plane vibrations of the bilins mediate non-adiabatic relaxation of a manifold of vibronic exciton states. However, the charge-transfer character of the bilins in the allophycocyanin-containing segments localizes the excitations in the core of the phycobilisome, yielding a kinetic bottleneck that enables photoregulatory mechanisms to operate efficiently on the >10-ps timescale.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.