ArticleBiophysical journal2012
Picosecond kinetics of light harvesting and photoprotective quenching in wild-type and mutant phycobilisomes isolated from the cyanobacterium Synechocystis PCC 6803.
Article in Biophysical journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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41 citing papers in PubMed.
- Photoactivation Transition State and Dynamical Response of the Orange Carotenoid Protein.The journal of physical chemistry. B · 2025Article
- Intramolecular charge transfer and the function of vibronic excitons in photosynthetic light harvesting.Photosynthesis research · 2024Review
- The Orange Carotenoid Protein Triggers Cyanobacterial Photoprotection by Quenching Bilins via a Structural Switch of Its Carotenoid.Journal of the American Chemical Society · 2024Article
- Structural and quantum chemical basis for OCP-mediated quenching of phycobilisomes.Science advances · 2024Article
- Structure and function of the light-protective orange carotenoid protein families.Current research in structural biology · 2024Review
- The structural basis for light acclimation in phycobilisome light harvesting systems systems in Porphyridium purpureum.Communications biology · 2023Article
- Dominance of photo over chromatic acclimation strategies by habitat-forming mesophotic red algae.Proceedings. Biological sciences · 2023Article
- Phycobilisome's Exciton Transfer Efficiency Relies on an Energetic Funnel Driven by Chromophore-Linker Protein Interactions.Journal of the American Chemical Society · 2023Article
- Energy transfer from phycobilisomes to photosystem I at 77 K.Frontiers in plant science · 2023Article
- Excitation energy transfer and vibronic coherence in intact phycobilisomes.Nature chemistry · 2022Article
- Article
- Phycobilisome light-harvesting efficiency in natural populations of the marine cyanobacteria Synechococcus increases with depth.Communications biology · 2022Article
- Ultrafast energy transfer dynamics of phycobilisome from Thermosynechococcus vulcanus, as revealed by ps fluorescence and fs pump-probe spectroscopies.Photosynthesis research · 2021Article
- State transitions and photosystems spatially resolved in individual cells of the cyanobacterium Synechococcus elongatus.Plant physiology · 2021Article
- Modelling excitation energy transfer and trapping in the filamentous cyanobacterium Anabaena variabilis PCC 7120.Photosynthesis research · 2020Article
- Time-resolved fluorescence study of excitation energy transfer in the cyanobacterium Anabaena PCC 7120.Photosynthesis research · 2020Article
- Photosystem II core quenching in desiccated Leptolyngbya ohadii.Photosynthesis research · 2020Article
- Phycobilisomes Harbor FNRmBio · 2019Article
- Single-molecule trapping and spectroscopy reveals photophysical heterogeneity of phycobilisomes quenched by Orange Carotenoid Protein.Nature communications · 2019Article
- Site, trigger, quenching mechanism and recovery of non-photochemical quenching in cyanobacteria: recent updates.Photosynthesis research · 2018Review
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6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
In high light conditions, cyanobacteria dissipate excess absorbed energy as heat in the light-harvesting phycobilisomes (PBs) to protect the photosynthetic system against photodamage. This process requires the binding of the red active form of the Orange Carotenoid Protein (OCP(r)), which can effectively quench the excited state of one of the allophycocyanin bilins. Recently, an in vitro reconstitution system was developed using isolated OCP and isolated PBs from Synechocystis PCC 6803. Here we have used spectrally resolved picosecond fluorescence to study wild-type and two mutated PBs. The results demonstrate that the quenching for all types of PBs takes place on an allophycocyanin bilin emitting at 660 nm (APC(Q)(660)) with a molecular quenching rate that is faster than (1 ps)(-1). Moreover, it is concluded that both the mechanism and the site of quenching are the same in vitro and in vivo. Thus, utilization of the in vitro system should make it possible in the future to elucidate whether the quenching is caused by charge transfer between APC(Q)(660) and OCP or by excitation energy transfer from APC(Q)(660) to the S(1) state of the carotenoid--a distinction that is very hard, if not impossible, to make in vivo.
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