ArticleBiophysical journal2007
The low-energy forms of photosystem I light-harvesting complexes: spectroscopic properties and pigment-pigment interaction characteristics.
Article in Biophysical journal, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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36 citing papers in PubMed, 79 citations in OpenAlex.
- Article
- Isolating the Vibrational Spectra of the Red Chlorophylls in Photosystem I with Multispectral Two-Dimensional Spectroscopy.The journal of physical chemistry letters · 2026Article
- A design principle for tuning far-red absorption of chlorophyll a in light-harvesting complexes.Communications chemistry · 2026Article
- Photosynthesis under far-red light-evolutionary adaptations and bioengineering of light-harvesting complexes.FEBS letters · 2026Review
- Exciton Delocalization Promotes Far-Red Absorption in a Tetrameric ChlorophyllJournal of the American Chemical Society · 2025Article
- Photophysical model of primary charge separation in green algal photosystem I based on combined analysis of time-resolved absorption and fluorescence spectra.Photosynthesis research · 2025Article
- Canopy imaging spectroscopy reveals a stepwise redshifted energy redistribution in the antenna under drought stress.Scientific reports · 2025Article
- Kinetics of Chlorophyll Degradation in Japanese Maple (Life (Basel, Switzerland) · 2025Article
- Structure of the red-shifted Fittonia albivenis photosystem I.Nature communications · 2024Article
- Coloring Outside the Lines: Exploiting Pigment-Protein Synergy for Far-Red Absorption in Plant Light-Harvesting Complexes.Journal of the American Chemical Society · 2024Article
- Environment-dependent chlorophyll-chlorophyll charge transfer states in Lhca4 pigment-protein complex.Frontiers in plant science · 2024Article
- Origin of Low-Lying Red States in the Lhca4 Light-Harvesting Complex of Photosystem I.The journal of physical chemistry letters · 2023Article
- The location of the low-energy states in Lhca1 favors excitation energy transfer to the core in the plant PSI-LHCI supercomplex.Photosynthesis research · 2023Article
- Dynamic Regulation of the Light-Harvesting System through State Transitions in Land Plants and Green Algae.Plants (Basel, Switzerland) · 2023Review
- Energy transfer from phycobilisomes to photosystem I at 77 K.Frontiers in plant science · 2023Article
- Spectral diversity of photosystem I from flowering plants.Photosynthesis research · 2023Article
- The Structural and Spectral Features of Light-Harvesting Complex II Proteoliposomes Mimic Those of Native Thylakoid Membranes.The journal of physical chemistry letters · 2022Article
- The structure of the Physcomitrium patens photosystem I reveals a unique Lhca2 paralogue replacing Lhca4.Nature plants · 2022Article
- Light quality, oxygenic photosynthesis and more.Photosynthetica · 2022Review
- Generation of ion-radical chlorophyll states in the light-harvesting antenna and the reaction center of cyanobacterial photosystem I.Photosynthesis research · 2020Article
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Authors and funding
8 authors at 5 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this work the spectroscopic properties of the special low-energy absorption bands of the outer antenna complexes of higher plant Photosystem I have been investigated by means of low-temperature absorption, fluorescence, and fluorescence line-narrowing experiments. It was found that the red-most absorption bands of Lhca3, Lhca4, and Lhca1-4 peak, respectively, at 704, 708, and 709 nm and are responsible for 725-, 733-, and 732-nm fluorescence emission bands. These bands are more red shifted compared to "normal" chlorophyll a (Chl a) bands present in light-harvesting complexes. The low-energy forms are characterized by a very large bandwidth (400-450 cm(-1)), which is the result of both large homogeneous and inhomogeneous broadening. The observed optical reorganization energy is untypical for Chl a and resembles more that of BChl a antenna systems. The large broadening and the changes in optical reorganization energy are explained by a mixing of an Lhca excitonic state with a charge transfer state. Such a charge transfer state can be stabilized by the polar residues around Chl 1025. It is shown that the optical reorganization energy is changing through the inhomogeneous distribution of the red-most absorption band, with the pigments contributing to the red part of the distribution showing higher values. A second red emission form in Lhca4 was detected at 705 nm and originates from a broad absorption band peaking at 690 nm. This fluorescence emission is present also in the Lhca4-N-47H mutant, which lacks the 733-nm emission band.
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