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Kagatani K, Nagao R, Shen JR, Yamano Y, Takaichi S, Akimoto S. Excitation relaxation dynamics of carotenoids constituting the diadinoxanthin cycle. PHOTOSYNTHESIS RESEARCH 2022; 154:13-19. [PMID: 35951151 DOI: 10.1007/s11120-022-00944-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Carotenoids (Cars) exhibit two functions in photosynthesis, light-harvesting and photoprotective functions, which are performed through the excited states of Cars. Therefore, increasing our knowledge on excitation relaxation dynamics of Cars is important for understanding of the functions of Cars. In light-harvesting complexes, there exist Cars functioning by converting the π-conjugation number in response to light conditions. It is well known that some microalgae have a mechanism controlling the conjugation number of Cars, called as the diadinoxanthin cycle; diadinoxanthin (10 conjugations) is accumulated under low light, whereas diatoxanthin (11 conjugations) appears under high light. However, the excitation relaxation dynamics of these two Cars have not been clarified. In the present study, we investigated excitation relaxation dynamics of diadinoxanthin and diatoxanthin in relation to their functions, by the ultrafast fluorescence spectroscopy. After an excitation to the S2 state, the intramolecular vibrational redistribution occurs, followed by the internal conversion to the S1 state. The S2 lifetimes were analyzed to be 175 fs, 155 fs, and 140 fs in diethyl ether, ethanol, and acetone, respectively, for diadinoxanthin, and 155 fs, 135 fs, and 125 fs in diethyl ether, ethanol, and acetone, respectively for diatoxanthin. By converting diadinoxanthin to diatoxanthin, the absorption spectra shift to longer wavelengths by 5-7 nm, and lifetimes of S2 and S1 states decrease by 11-13% and 52%, respectively. Differences in levels and lifetimes of excited states between diadinoxanthin and diatoxanthin are small; therefore, it is suggested that changes in the energy level of chlorophyll a are necessary to efficiently control the functions of the diadinoxanthin cycle.
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Affiliation(s)
- Kohei Kagatani
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan
| | - Ryo Nagao
- Research Institute for Interdisciplinary Science and Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Jian-Ren Shen
- Research Institute for Interdisciplinary Science and Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Yumiko Yamano
- Comprehensive Education and Research Center, Kobe Pharmaceutical University, Kobe, 658-8558, Japan
| | - Shinichi Takaichi
- Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Seiji Akimoto
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan.
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Nagao R, Yokono M, Ueno Y, Shen JR, Akimoto S. Excitation-Energy Transfer and Quenching in Diatom PSI-FCPI upon P700 Cation Formation. J Phys Chem B 2020; 124:1481-1486. [DOI: 10.1021/acs.jpcb.0c00715] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ryo Nagao
- Research Institute for Interdisciplinary Science and Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Makio Yokono
- Innovation Center, Nippon Flour Mills Company Ltd., Atsugi 243-0041, Japan
| | - Yoshifumi Ueno
- Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Jian-Ren Shen
- Research Institute for Interdisciplinary Science and Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Seiji Akimoto
- Graduate School of Science, Kobe University, Kobe 657-8501, Japan
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Kim E, Akimoto S, Tokutsu R, Yokono M, Minagawa J. Fluorescence lifetime analyses reveal how the high light-responsive protein LHCSR3 transforms PSII light-harvesting complexes into an energy-dissipative state. J Biol Chem 2017; 292:18951-18960. [PMID: 28972177 DOI: 10.1074/jbc.m117.805192] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/14/2017] [Indexed: 12/14/2022] Open
Abstract
In green algae, light-harvesting complex stress-related 3 (LHCSR3) is responsible for the pH-dependent dissipation of absorbed light energy, a function vital for survival under high-light conditions. LHCSR3 binds the photosystem II and light-harvesting complex II (PSII-LHCII) supercomplex and transforms it into an energy-dissipative form under acidic conditions, but the molecular mechanism remains unclear. Here we show that in the green alga Chlamydomonas reinhardtii, LHCSR3 modulates the excitation energy flow and dissipates the excitation energy within the light-harvesting complexes of the PSII supercomplex. Using fluorescence decay-associated spectra analysis, we found that, when the PSII supercomplex is associated with LHCSR3 under high-light conditions, excitation energy transfer from light-harvesting complexes to chlorophyll-binding protein CP43 is selectively inhibited compared with that to CP47, preventing excess excitation energy from overloading the reaction center. By analyzing femtosecond up-conversion fluorescence kinetics, we further found that pH- and LHCSR3-dependent quenching of the PSII-LHCII-LHCSR3 supercomplex is accompanied by a fluorescence emission centered at 684 nm, with a decay time constant of 18.6 ps, which is equivalent to the rise time constant of the lutein radical cation generated within a chlorophyll-lutein heterodimer. These results suggest a mechanism in which LHCSR3 transforms the PSII supercomplex into an energy-dissipative state and provide critical insight into the molecular events and characteristics in LHCSR3-dependent energy quenching.
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Affiliation(s)
- Eunchul Kim
- From the Division of Environmental Photobiology, National Institute for Basic Biology, Okazaki 444-8585
| | - Seiji Akimoto
- the Graduate School of Science, Kobe University, Kobe 657-8501, and
| | - Ryutaro Tokutsu
- From the Division of Environmental Photobiology, National Institute for Basic Biology, Okazaki 444-8585
| | - Makio Yokono
- the Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
| | - Jun Minagawa
- From the Division of Environmental Photobiology, National Institute for Basic Biology, Okazaki 444-8585,
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Hamada F, Murakami A, Akimoto S. Adaptation of Divinyl Chlorophyll a/b-Containing Cyanobacterium to Different Light Conditions: Three Strains of Prochlorococcus marinus. J Phys Chem B 2017; 121:9081-9090. [DOI: 10.1021/acs.jpcb.7b04835] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fumiya Hamada
- Graduate
School of Science, Kobe University, Kobe 657-8501, Japan
| | - Akio Murakami
- Graduate
School of Science, Kobe University, Kobe 657-8501, Japan
- Kobe University Research Center for Inland Seas, Awaji 656-2401, Japan
| | - Seiji Akimoto
- Graduate
School of Science, Kobe University, Kobe 657-8501, Japan
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Takabayashi A, Takabayashi S, Takahashi K, Watanabe M, Uchida H, Murakami A, Fujita T, Ikeuchi M, Tanaka A. PCoM-DB Update: A Protein Co-Migration Database for Photosynthetic Organisms. PLANT & CELL PHYSIOLOGY 2017; 58:e10. [PMID: 28011869 DOI: 10.1093/pcp/pcw219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 12/01/2016] [Indexed: 05/29/2023]
Abstract
The identification of protein complexes is important for the understanding of protein structure and function and the regulation of cellular processes. We used blue-native PAGE and tandem mass spectrometry to identify protein complexes systematically, and built a web database, the protein co-migration database (PCoM-DB, http://pcomdb.lowtem.hokudai.ac.jp/proteins/top), to provide prediction tools for protein complexes. PCoM-DB provides migration profiles for any given protein of interest, and allows users to compare them with migration profiles of other proteins, showing the oligomeric states of proteins and thus identifying potential interaction partners. The initial version of PCoM-DB (launched in January 2013) included protein complex data for Synechocystis whole cells and Arabidopsis thaliana thylakoid membranes. Here we report PCoM-DB version 2.0, which includes new data sets and analytical tools. Additional data are included from whole cells of the pelagic marine picocyanobacterium Prochlorococcus marinus, the thermophilic cyanobacterium Thermosynechococcus elongatus, the unicellular green alga Chlamydomonas reinhardtii and the bryophyte Physcomitrella patens. The Arabidopsis protein data now include data for intact mitochondria, intact chloroplasts, chloroplast stroma and chloroplast envelopes. The new tools comprise a multiple-protein search form and a heat map viewer for protein migration profiles. Users can compare migration profiles of a protein of interest among different organelles or compare migration profiles among different proteins within the same sample. For Arabidopsis proteins, users can compare migration profiles of a protein of interest with putative homologous proteins from non-Arabidopsis organisms. The updated PCoM-DB will help researchers find novel protein complexes and estimate their evolutionary changes in the green lineage.
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Affiliation(s)
- Atsushi Takabayashi
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, Sapporo, Japan
- CREST, JST, Kita-ku, Sapporo, Japan
| | - Saeka Takabayashi
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, Sapporo, Japan
- Department of Public Health, Graduate School of Medicine Hokkaido University, Kita-ku, Sapporo, Japan
| | - Kaori Takahashi
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Mai Watanabe
- Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
| | - Hiroko Uchida
- Kobe University Research Center for Inland Seas, Awaji, Japan
| | - Akio Murakami
- Kobe University Research Center for Inland Seas, Awaji, Japan
| | - Tomomichi Fujita
- Faculty of Science, Hokkaido University, N10 W8 Kita-ku, Sapporo 060-0810, Japan Tokyo, Tokyo, Japan
| | - Masahiko Ikeuchi
- Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
| | - Ayumi Tanaka
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, Sapporo, Japan
- CREST, JST, Kita-ku, Sapporo, Japan
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Tanaka K, Iida S, Takaichi S, Mimuro M, Murakami A, Akimoto S. Excitation relaxation dynamics and energy transfer in pigment-protein complexes of a dinoflagellate, revealed by ultrafast fluorescence spectroscopy. PHOTOSYNTHESIS RESEARCH 2016; 130:183-191. [PMID: 26942582 DOI: 10.1007/s11120-016-0238-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 02/23/2016] [Indexed: 06/05/2023]
Abstract
Photosynthetic light-harvesting complexes, found in aquatic photosynthetic organisms, contain a variety of carotenoids and chlorophylls. Most of the photosynthetic dinoflagellates possess two types of light-harvesting antenna complexes: peridinin (Peri)-chlorophyll (Chl) a/c-protein, as an intrinsic thylakoid membrane complex protein (iPCP), and water-soluble Peri-Chl a-protein, as an extrinsic membrane protein (sPCP) on the inner surface of the thylakoid. Peri is a unique carotenoid that has eight C=C bonds and one C=O bond, which results in a characteristic absorption band in the green wavelength region. In the present study, excitation relaxation dynamics of Peri in solution and excitation energy transfer processes of sPCP and the thylakoid membranes, prepared from the photosynthetic dinoflagellate, Symbiodinium sp., are investigated by ultrafast time-resolved fluorescence spectroscopy. We found that Peri-to-Chl a energy transfer occurs via the Peri S1 state with a time constant of 1.5 ps or 400 fs in sPCP or iPCP, respectively, and that Chl c-to-Chl a energy transfer occurs in the time regions of 350-400 fs and 1.8-2.6 ps.
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Affiliation(s)
- Kazunori Tanaka
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan
| | - Satoko Iida
- Kobe University Research Center for Inland Seas, Awaji, 656-2401, Japan
| | - Shinichi Takaichi
- Department of Biology, Nippon Medical School, Musashino, 180-0023, Japan
| | - Mamoru Mimuro
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan
| | - Akio Murakami
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan
- Kobe University Research Center for Inland Seas, Awaji, 656-2401, Japan
| | - Seiji Akimoto
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan.
- Molecular Photoscience Research Center, Kobe University, Kobe, 657-8501, Japan.
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Matsubara S, Kunieda M, Wada A, Sasaki SI, Tamiaki H. Visible and near-infrared spectra of chlorosomal zinc chlorin self-aggregates dependent on their peripheral substituents at the 8-position. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.07.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Tamiaki H, Tsuji K, Kim K, Miyatake T. Preparation of mono-vinylated and formylated chlorophyll derivatives and their optical properties. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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