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Pavlou A, Styring S, Mamedov F. The S 1 to S 2 and S 2 to S 3 state transitions in plant photosystem II: relevance to the functional and structural heterogeneity of the water oxidizing complex. Photosynth Res 2024:10.1007/s11120-024-01096-4. [PMID: 38662327 DOI: 10.1007/s11120-024-01096-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/18/2024] [Indexed: 04/26/2024]
Abstract
In Photosystem II, light-induced water splitting occurs via the S state cycle of the CaMn4O5-cluster. To understand the role of various possible conformations of the CaMn4O5-cluster in this process, the temperature dependence of the S1 → S2 and S2 → S3 state transitions, induced by saturating laser flashes, was studied in spinach photosystem II membrane preparations under different conditions. The S1 → S2 transition temperature dependence was shown to be much dependent on the type of the cryoprotectant and presence of 3.5% methanol, resulting in the variation of transition half-inhibition temperature by 50 K. No similar effect was observed for the S2 → S3 state transition, for which we also show that both the low spin g = 2.0 multiline and high spin g = 4.1 EPR configurations of the S2 state advance with similar efficiency to the S3 state, both showing a transition half-inhibition temperature of 240 K. This was further confirmed by following the appearance of the Split S3 EPR signal. The results are discussed in relevance to the functional and structural heterogeneity of the water oxidizing complex intermediates in photosystem II.
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Affiliation(s)
- Andrea Pavlou
- Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, 751 20, Uppsala, Sweden
| | - Stenbjörn Styring
- Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, 751 20, Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, 751 20, Uppsala, Sweden.
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2
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Bhowmick A, Hussein R, Bogacz I, Simon PS, Ibrahim M, Chatterjee R, Doyle MD, Cheah MH, Fransson T, Chernev P, Kim IS, Makita H, Dasgupta M, Kaminsky CJ, Zhang M, Gätcke J, Haupt S, Nangca II, Keable SM, Aydin AO, Tono K, Owada S, Gee LB, Fuller FD, Batyuk A, Alonso-Mori R, Holton JM, Paley DW, Moriarty NW, Mamedov F, Adams PD, Brewster AS, Dobbek H, Sauter NK, Bergmann U, Zouni A, Messinger J, Kern J, Yano J, Yachandra VK. Author Correction: Structural evidence for intermediates during O 2 formation in photosystem II. Nature 2024; 626:E12. [PMID: 38291188 PMCID: PMC10866699 DOI: 10.1038/s41586-024-07099-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Affiliation(s)
- Asmit Bhowmick
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Rana Hussein
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Isabel Bogacz
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Philipp S Simon
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Mohamed Ibrahim
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
- Institute of Molecular Medicine, University of Lübeck, Lübeck, Germany
| | - Ruchira Chatterjee
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Margaret D Doyle
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Mun Hon Cheah
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - Thomas Fransson
- Department of Theoretical Chemistry and Biology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Petko Chernev
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - In-Sik Kim
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Hiroki Makita
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Medhanjali Dasgupta
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Corey J Kaminsky
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Miao Zhang
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Julia Gätcke
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Stephanie Haupt
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Isabela I Nangca
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Stephen M Keable
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - A Orkun Aydin
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - Kensuke Tono
- Japan Synchrotron Radiation Research Institute, Hyogo, Japan
- RIKEN SPring-8 Center, Hyogo, Japan
| | - Shigeki Owada
- Japan Synchrotron Radiation Research Institute, Hyogo, Japan
- RIKEN SPring-8 Center, Hyogo, Japan
| | - Leland B Gee
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Franklin D Fuller
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Alexander Batyuk
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Roberto Alonso-Mori
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - James M Holton
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Daniel W Paley
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Nigel W Moriarty
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - Paul D Adams
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Bioengineering, University of California, Berkeley, CA, USA
| | - Aaron S Brewster
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Holger Dobbek
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Nicholas K Sauter
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Uwe Bergmann
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Athina Zouni
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany.
| | - Johannes Messinger
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden.
- Department of Chemistry, Umeå University, Umeå, Sweden.
| | - Jan Kern
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Junko Yano
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - Vittal K Yachandra
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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Pavlou A, Mokvist F, Styring S, Mamedov F. Far-red photosynthesis: Two charge separation pathways exist in plant Photosystem II reaction center. Biochim Biophys Acta Bioenerg 2023; 1864:148994. [PMID: 37355002 DOI: 10.1016/j.bbabio.2023.148994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/09/2023] [Accepted: 06/15/2023] [Indexed: 06/26/2023]
Abstract
An alternative charge separation pathway in Photosystem II under the far-red light was proposed by us on the basis of electron transfer properties at 295 K and 5 K. Here we extend these studies to the temperature range of 77-295 K with help of electron paramagnetic resonance spectroscopy. Induction of the S2 state multiline signal, oxidation of Cytochrome b559 and ChlorophyllZ was studied in Photosystem II membrane preparations from spinach after application of a laser flashes in visible (532 nm) or far-red (730-750 nm) spectral regions. Temperature dependence of the S2 state signal induction after single flash at 730-750 nm (Tinhibition ~ 240 K) was found to be different than that at 532 nm (Tinhibition ~ 157 K). No contaminant oxidation of the secondary electron donors cytochrome b559 or chlorophyllZ was observed. Photoaccumulation experiments with extensive flashing at 77 K showed similar results, with no or very little induction of the secondary electron donors. Thus, the partition ratio defined as (yield of YZ/CaMn4O5-cluster oxidation):(yield of Cytb559/ChlZ/CarD2 oxidation) was found to be 0.4 at under visible light and 1.7 at under far-red light at 77 K. Our data indicate that different products of charge separation after far-red light exists in the wide temperature range which further support the model of the different primary photochemistry in Photosystem II with localization of hole on the ChlD1 molecule.
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Affiliation(s)
- Andrea Pavlou
- Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, 751 20 Uppsala, Sweden
| | - Fredrik Mokvist
- Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, 751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, 751 20 Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, 751 20 Uppsala, Sweden.
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Bhowmick A, Hussein R, Bogacz I, Simon PS, Ibrahim M, Chatterjee R, Doyle MD, Cheah MH, Fransson T, Chernev P, Kim IS, Makita H, Dasgupta M, Kaminsky CJ, Zhang M, Gätcke J, Haupt S, Nangca II, Keable SM, Aydin AO, Tono K, Owada S, Gee LB, Fuller FD, Batyuk A, Alonso-Mori R, Holton JM, Paley DW, Moriarty NW, Mamedov F, Adams PD, Brewster AS, Dobbek H, Sauter NK, Bergmann U, Zouni A, Messinger J, Kern J, Yano J, Yachandra VK. Structural evidence for intermediates during O 2 formation in photosystem II. Nature 2023; 617:629-636. [PMID: 37138085 PMCID: PMC10191843 DOI: 10.1038/s41586-023-06038-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 03/31/2023] [Indexed: 05/05/2023]
Abstract
In natural photosynthesis, the light-driven splitting of water into electrons, protons and molecular oxygen forms the first step of the solar-to-chemical energy conversion process. The reaction takes place in photosystem II, where the Mn4CaO5 cluster first stores four oxidizing equivalents, the S0 to S4 intermediate states in the Kok cycle, sequentially generated by photochemical charge separations in the reaction center and then catalyzes the O-O bond formation chemistry1-3. Here, we report room temperature snapshots by serial femtosecond X-ray crystallography to provide structural insights into the final reaction step of Kok's photosynthetic water oxidation cycle, the S3→[S4]→S0 transition where O2 is formed and Kok's water oxidation clock is reset. Our data reveal a complex sequence of events, which occur over micro- to milliseconds, comprising changes at the Mn4CaO5 cluster, its ligands and water pathways as well as controlled proton release through the hydrogen-bonding network of the Cl1 channel. Importantly, the extra O atom Ox, which was introduced as a bridging ligand between Ca and Mn1 during the S2→S3 transition4-6, disappears or relocates in parallel with Yz reduction starting at approximately 700 μs after the third flash. The onset of O2 evolution, as indicated by the shortening of the Mn1-Mn4 distance, occurs at around 1,200 μs, signifying the presence of a reduced intermediate, possibly a bound peroxide.
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Affiliation(s)
- Asmit Bhowmick
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Rana Hussein
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Isabel Bogacz
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Philipp S Simon
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Mohamed Ibrahim
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
- Institute of Molecular Medicine, University of Lübeck, Lübeck, Germany
| | - Ruchira Chatterjee
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Margaret D Doyle
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Mun Hon Cheah
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - Thomas Fransson
- Department of Theoretical Chemistry and Biology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Petko Chernev
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - In-Sik Kim
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Hiroki Makita
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Medhanjali Dasgupta
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Corey J Kaminsky
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Miao Zhang
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Julia Gätcke
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Stephanie Haupt
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Isabela I Nangca
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Stephen M Keable
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - A Orkun Aydin
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - Kensuke Tono
- Japan Synchrotron Radiation Research Institute, Hyogo, Japan
- RIKEN SPring-8 Center, Hyogo, Japan
| | - Shigeki Owada
- Japan Synchrotron Radiation Research Institute, Hyogo, Japan
- RIKEN SPring-8 Center, Hyogo, Japan
| | - Leland B Gee
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Franklin D Fuller
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Alexander Batyuk
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Roberto Alonso-Mori
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - James M Holton
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Daniel W Paley
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Nigel W Moriarty
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden
| | - Paul D Adams
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Bioengineering, University of California, Berkeley, CA, USA
| | - Aaron S Brewster
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Holger Dobbek
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Nicholas K Sauter
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Uwe Bergmann
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Athina Zouni
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany.
| | - Johannes Messinger
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, Uppsala, Sweden.
- Department of Chemistry, Umeå University, Umeå, Sweden.
| | - Jan Kern
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Junko Yano
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - Vittal K Yachandra
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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Han G, Chernev P, Styring S, Messinger J, Mamedov F. Molecular basis for turnover inefficiencies (misses) during water oxidation in photosystem II. Chem Sci 2022; 13:8667-8678. [PMID: 35974765 PMCID: PMC9337725 DOI: 10.1039/d2sc00854h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 07/04/2022] [Indexed: 11/24/2022] Open
Abstract
Photosynthesis stores solar light as chemical energy and efficiency of this process is highly important. The electrons required for CO2 reduction are extracted from water in a reaction driven by light-induced charge separations in the Photosystem II reaction center and catalyzed by the CaMn4O5-cluster. This cyclic process involves five redox intermediates known as the S0–S4 states. In this study, we quantify the flash-induced turnover efficiency of each S state by electron paramagnetic resonance spectroscopy. Measurements were performed in photosystem II membrane preparations from spinach in the presence of an exogenous electron acceptor at selected temperatures between −10 °C and +20 °C and at flash frequencies of 1.25, 5 and 10 Hz. The results show that at optimal conditions the turnover efficiencies are limited by reactions occurring in the water oxidizing complex, allowing the extraction of their S state dependence and correlating low efficiencies to structural changes and chemical events during the reaction cycle. At temperatures 10 °C and below, the highest efficiency (i.e. lowest miss parameter) was found for the S1 → S2 transition, while the S2 → S3 transition was least efficient (highest miss parameter) over the whole temperature range. These electron paramagnetic resonance results were confirmed by measurements of flash-induced oxygen release patterns in thylakoid membranes and are explained on the basis of S state dependent structural changes at the CaMn4O5-cluster that were determined recently by femtosecond X-ray crystallography. Thereby, possible “molecular errors” connected to the e− transfer, H+ transfer, H2O binding and O2 release are identified. Temperature dependence of the transition inefficiencies (misses) for the water oxidation process in photosystem II were studied by EPR spectroscopy and are explained on the basis of S state dependent structural changes at the CaMn4O5-cluster.![]()
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Affiliation(s)
- Guangye Han
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
| | - Petko Chernev
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
| | - Johannes Messinger
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
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Kosourov S, Böhm M, Senger M, Berggren G, Stensjö K, Mamedov F, Lindblad P, Allahverdiyeva Y. Photosynthetic hydrogen production: Novel protocols, promising engineering approaches and application of semi-synthetic hydrogenases. Physiol Plant 2021; 173:555-567. [PMID: 33860946 DOI: 10.1111/ppl.13428] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
Photosynthetic production of molecular hydrogen (H2 ) by cyanobacteria and green algae is a potential source of renewable energy. These organisms are capable of water biophotolysis by taking advantage of photosynthetic apparatus that links water oxidation at Photosystem II and reduction of protons to H2 downstream of Photosystem I. Although the process has a theoretical potential to displace fossil fuels, photosynthetic H2 production in its current state is not yet efficient enough for industrial applications due to a number of physiological, biochemical, and engineering barriers. This article presents a short overview of the metabolic pathways and enzymes involved in H2 photoproduction in cyanobacteria and green algae and our present understanding of the mechanisms of this process. We also summarize recent advances in engineering photosynthetic cell factories capable of overcoming the major barriers to efficient and sustainable H2 production.
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Affiliation(s)
- Sergey Kosourov
- Molecular Plant Biology, Department of Life Technologies, University of Turku, Turku, Finland
| | - Maximilian Böhm
- Molecular Biomimetics, Department of Chemistry-Ångström, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Moritz Senger
- Molecular Biomimetics, Department of Chemistry-Ångström, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Gustav Berggren
- Molecular Biomimetics, Department of Chemistry-Ångström, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Karin Stensjö
- Microbial Chemistry, Department of Chemistry-Ångström, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry-Ångström, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Peter Lindblad
- Microbial Chemistry, Department of Chemistry-Ångström, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Yagut Allahverdiyeva
- Molecular Plant Biology, Department of Life Technologies, University of Turku, Turku, Finland
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Wang H, Emanuelsson R, Liu H, Mamedov F, Strømme M, Sjödin M. A conducting additive-free high potential quinone-based conducting redox polymer as lithium ion battery cathode. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138901] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ermakova M, Bellasio C, Fitzpatrick D, Furbank RT, Mamedov F, von Caemmerer S. Upregulation of bundle sheath electron transport capacity under limiting light in C 4 Setaria viridis. Plant J 2021; 106:1443-1454. [PMID: 33772896 PMCID: PMC9291211 DOI: 10.1111/tpj.15247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 02/15/2021] [Accepted: 03/22/2021] [Indexed: 05/22/2023]
Abstract
C4 photosynthesis is a biochemical pathway that operates across mesophyll and bundle sheath (BS) cells to increase CO2 concentration at the site of CO2 fixation. C4 plants benefit from high irradiance but their efficiency decreases under shade, causing a loss of productivity in crop canopies. We investigated shade acclimation responses of Setaria viridis, a model monocot of NADP-dependent malic enzyme subtype, focussing on cell-specific electron transport capacity. Plants grown under low light (LL) maintained CO2 assimilation rates similar to high light plants but had an increased chlorophyll and light-harvesting-protein content, predominantly in BS cells. Photosystem II (PSII) protein abundance, oxygen-evolving activity and the PSII/PSI ratio were enhanced in LL BS cells, indicating a higher capacity for linear electron flow. Abundances of PSI, ATP synthase, Cytochrome b6 f and the chloroplast NAD(P)H dehydrogenase complex, which constitute the BS cyclic electron flow machinery, were also increased in LL plants. A decline in PEP carboxylase activity in mesophyll cells and a consequent shortage of reducing power in BS chloroplasts were associated with a more oxidised plastoquinone pool in LL plants and the formation of PSII - light-harvesting complex II supercomplexes with an increased oxygen evolution rate. Our results suggest that the supramolecular composition of PSII in BS cells is adjusted according to the redox state of the plastoquinone pool. This discovery contributes to the understanding of the acclimation of PSII activity in C4 plants and will support the development of strategies for crop improvement, including the engineering of C4 photosynthesis into C3 plants.
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Affiliation(s)
- Maria Ermakova
- Australian Research Council Centre of Excellence for Translational PhotosynthesisDivision of Plant ScienceResearch School of BiologyThe Australian National UniversityActonAustralian Capital Territory2601Australia
| | - Chandra Bellasio
- Australian Research Council Centre of Excellence for Translational PhotosynthesisDivision of Plant ScienceResearch School of BiologyThe Australian National UniversityActonAustralian Capital Territory2601Australia
- University of the Balearic IslandsPalmaIlles Balears07122Spain
| | - Duncan Fitzpatrick
- Australian Research Council Centre of Excellence for Translational PhotosynthesisDivision of Plant ScienceResearch School of BiologyThe Australian National UniversityActonAustralian Capital Territory2601Australia
| | - Robert T. Furbank
- Australian Research Council Centre of Excellence for Translational PhotosynthesisDivision of Plant ScienceResearch School of BiologyThe Australian National UniversityActonAustralian Capital Territory2601Australia
| | - Fikret Mamedov
- Molecular BiomimeticsDepartment of Chemistry – Ångström LaboratoryUppsala UniversityUppsala75 120Sweden
| | - Susanne von Caemmerer
- Australian Research Council Centre of Excellence for Translational PhotosynthesisDivision of Plant ScienceResearch School of BiologyThe Australian National UniversityActonAustralian Capital Territory2601Australia
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9
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Nilsson AK, Pěnčík A, Johansson ON, Bånkestad D, Fristedt R, Suorsa M, Trotta A, Novák O, Mamedov F, Aro EM, Burmeister BL. PSB33 protein sustains photosystem II in plant chloroplasts under UV-A light. J Exp Bot 2020; 71:7210-7223. [PMID: 32930769 DOI: 10.1093/jxb/eraa427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Plants can quickly and dynamically respond to spectral and intensity variations of the incident light. These responses include activation of developmental processes, morphological changes, and photosynthetic acclimation that ensure optimal energy conversion and minimal photoinhibition. Plant adaptation and acclimation to environmental changes have been extensively studied, but many details surrounding these processes remain elusive. The photosystem II (PSII)-associated protein PSB33 plays a fundamental role in sustaining PSII as well as in the regulation of the light antenna in fluctuating light. We investigated how PSB33 knock-out Arabidopsis plants perform under different light qualities. psb33 plants displayed a reduction of 88% of total fresh weight compared to wild type plants when cultivated at the boundary of UV-A and blue light. The sensitivity towards UV-A light was associated with a lower abundance of PSII proteins, which reduces psb33 plants' capacity for photosynthesis. The UV-A phenotype was found to be linked to altered phytohormone status and changed thylakoid ultrastructure. Our results collectively show that PSB33 is involved in a UV-A light-mediated mechanism to maintain a functional PSII pool in the chloroplast.
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Affiliation(s)
- Anders K Nilsson
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Section for Ophthalmology, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Aleš Pěnčík
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences & Faculty of Science of Palacký University, Šlechtitelů, Olomouc, Czech Republic
| | - Oskar N Johansson
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | | | - Rikard Fristedt
- Chalmers University of Technology, Department of Biology and Biology Engineering, Division of Food and Nutrient Science, Gothenburg, Sweden
| | - Marjaana Suorsa
- Department of Biochemistry, Molecular Plant Biology, FI-20014 University of Turku, Turku, Finland
| | - Andrea Trotta
- Department of Biochemistry, Molecular Plant Biology, FI-20014 University of Turku, Turku, Finland
| | - Ondřej Novák
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences & Faculty of Science of Palacký University, Šlechtitelů, Olomouc, Czech Republic
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Eva-Mari Aro
- Department of Biochemistry, Molecular Plant Biology, FI-20014 University of Turku, Turku, Finland
| | - Björn Lundin Burmeister
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Independent researcher, Gamlestadstorget, Gothenburg, Sweden
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10
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de Lichtenberg C, Avramov AP, Zhang M, Mamedov F, Burnap RL, Messinger J. The D1-V185N mutation alters substrate water exchange by stabilizing alternative structures of the Mn 4Ca-cluster in photosystem II. Biochim Biophys Acta Bioenerg 2020; 1862:148319. [PMID: 32979346 DOI: 10.1016/j.bbabio.2020.148319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/15/2020] [Accepted: 09/19/2020] [Indexed: 11/30/2022]
Abstract
In photosynthesis, the oxygen-evolving complex (OEC) of the pigment-protein complex photosystem II (PSII) orchestrates the oxidation of water. Introduction of the V185N mutation into the D1 protein was previously reported to drastically slow O2-release and strongly perturb the water network surrounding the Mn4Ca cluster. Employing time-resolved membrane inlet mass spectrometry, we measured here the H218O/H216O-exchange kinetics of the fast (Wf) and slow (Ws) exchanging substrate waters bound in the S1, S2 and S3 states to the Mn4Ca cluster of PSII core complexes isolated from wild type and D1-V185N strains of Synechocystis sp. PCC 6803. We found that the rate of exchange for Ws was increased in the S1 and S2 states, while both Wf and Ws exchange rates were decreased in the S3 state. Additionally, we used EPR spectroscopy to characterize the Mn4Ca cluster and its interaction with the redox active D1-Tyr161 (YZ). In the S2 state, we observed a greatly diminished multiline signal in the V185N-PSII that could be recovered by addition of ammonia. The split signal in the S1 state was not affected, while the split signal in the S3 state was absent in the D1-V185N mutant. These findings are rationalized by the proposal that the N185 residue stabilizes the binding of an additional water-derived ligand at the Mn1 site of the Mn4Ca cluster via hydrogen bonding. Implications for the sites of substrate water binding are discussed.
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Affiliation(s)
- Casper de Lichtenberg
- Department of Chemistry, Umeå University, Linnaeus väg 6 (KBC huset), SE-901 87 Umeå, Sweden; Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, POB 523, SE-75120 Uppsala, Sweden
| | - Anton P Avramov
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK 74078, United States
| | - Minquan Zhang
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK 74078, United States
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, POB 523, SE-75120 Uppsala, Sweden
| | - Robert L Burnap
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK 74078, United States
| | - Johannes Messinger
- Department of Chemistry, Umeå University, Linnaeus väg 6 (KBC huset), SE-901 87 Umeå, Sweden; Molecular Biomimetics, Department of Chemistry - Ångström, Uppsala University, POB 523, SE-75120 Uppsala, Sweden.
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11
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Krishna PS, Morello G, Mamedov F. Characterization of the transient fluorescence wave phenomenon that occurs during H2 production in Chlamydomonas reinhardtii. J Exp Bot 2019; 70:6321-6336. [PMID: 31504725 PMCID: PMC6859737 DOI: 10.1093/jxb/erz380] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 08/14/2019] [Indexed: 05/10/2023]
Abstract
The redox state of the plastoquinone (PQ) pool in sulfur-deprived, H2-producing Chlamydomonas reinhardtii cells was studied using single flash-induced variable fluorescence decay kinetics. During H2 production, the fluorescence decay kinetics exhibited an unusual post-illumination rise of variable fluorescence, giving a wave-like appearance. The wave showed the transient fluorescence minimum at ~60 ms after the flash, followed by a rise, reaching the transient fluorescence maximum at ~1 s after the flash, before decaying back to the initial fluorescence level. Similar wave-like fluorescence decay kinetics have been reported previously in anaerobically incubated cyanobacteria but not in green algae. From several different electron and proton transfer inhibitors used, polymyxin B, an inhibitor of type II NAD(P)H dehydrogenase (NDA2), had the effect of eliminating the fluorescence wave feature, indicating involvement of NDA2 in this phenomenon. This was further confirmed by the absence of the fluorescence wave in the Δnda2 mutant lacking NDA2. Additionally, Δnda2 mutants have also shown delayed and diminished H2 production (only 23% if compared with the wild type). Our results show that the fluorescence wave phenomenon in C. reinhardtii is observed under highly reducing conditions and is induced by the NDA2-mediated electron flow from the reduced stromal components to the PQ pool. Therefore, the fluorescence wave phenomenon is a sensitive probe for the complex network of redox reactions at the PQ pool level in the thylakoid membrane. It could be used in further characterization and improvement of the electron transfer pathways leading to H2 production in C. reinhardtii.
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Affiliation(s)
- Pilla Sankara Krishna
- Molecular Biomimetics, Department of Chemistry – Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Giorgio Morello
- Molecular Biomimetics, Department of Chemistry – Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry – Ångström Laboratory, Uppsala University, Uppsala, Sweden
- Correspondence:
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12
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Amole C, Ardid M, Arnquist I, Asner D, Baxter D, Behnke E, Bressler M, Broerman B, Cao G, Chen C, Chowdhury U, Clark K, Collar J, Cooper P, Coutu C, Cowles C, Crisler M, Crowder G, Cruz-Venegas N, Dahl C, Das M, Fallows S, Farine J, Felis I, Filgas R, Girard F, Giroux G, Hall J, Hardy C, Harris O, Hillier T, Hoppe E, Jackson C, Jin M, Klopfenstein L, Kozynets T, Krauss C, Laurin M, Lawson I, Leblanc A, Levine I, Licciardi C, Lippincott W, Loer B, Mamedov F, Mitra P, Moore C, Nania T, Neilson R, Noble A, Oedekerk P, Ortega A, Piro MC, Plante A, Podviyanuk R, Priya S, Robinson A, Sahoo S, Scallon O, Seth S, Sonnenschein A, Starinski N, Štekl I, Sullivan T, Tardif F, Vázquez-Jáuregui E, Walkowski N, Weima E, Wichoski U, Wierman K, Yan Y, Zacek V, Zhang J. Dark matter search results from the complete exposure of the PICO-60
C3F8
bubble chamber. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.100.022001] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Rakhimov AV, Barabash AS, Basharina-Freshville A, Blot S, Bongrand M, Bourgeois C, Breton D, Breier R, Birdsall E, Brudanin VB, Burešova H, Busto J, Calvez S, Cascella M, Cerna C, Cesar JP, Chauveau E, Chopra A, Claverie G, De Capua S, Delalee F, Duchesneau D, Egorov VG, Eurin G, Evans JJ, Fajt L, Filosofov DV, Flack R, Garrido X, Gomez H, Guillon B, Guzowski P, Hodák R, Holý K, Huber A, Hugon C, Jeremie A, Jullian S, Karaivanov DV, Kauer M, Klimenko AA, Kochetov OI, Konovalov SI, Kovalenko V, Lang K, Lemière Y, Le Noblet T, Liptak Z, Liu XR, Loaiza P, Lutter G, Maalmi J, Macko M, Mamedov F, Marquet C, Mauger F, Minotti A, Mirsagatova AA, Mirzayev NA, Moreau I, Morgan B, Mott J, Nemchenok IB, Nomachi M, Nova F, Ohsumi H, Oliviero G, Pahlka RB, Pater JR, Palušová V, Perrot F, Piquemal F, Povinec P, Pridal P, Ramachers YA, Rebii A, Remoto A, Richards B, Ricol JS, Rukhadze E, Rukhadze NI, Saakyan R, Sadikov II, Salazar R, Sarazin X, Sedgbeer J, Shitov YA, Šimkovic F, Simard L, Smetana A, Smolek K, Smolnikov AA, Snow S, Söldner-Rembold S, Soulé B, Špavorova M, Štekl I, Tashimova FA, Thomas J, Timkin V, Torre S, Tretyak VI, Tretyak VI, Umatov VI, Vilela C, Vorobel V, Warot G, Waters D, Zampaolo M, Žukauskas A. Development of methods for the preparation of radiopure 82Se sources for the SuperNEMO neutrinoless double-beta decay experiment. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2019-3129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A radiochemical method for producing 82Se sources with an ultra-low level of contamination of natural radionuclides (40K, decay products of 232Th and 238U) has been developed based on cation-exchange chromatographic purification with reverse removal of impurities. It includes chromatographic separation (purification), reduction, conditioning (which includes decantation, centrifugation, washing, grinding, and drying), and 82Se foil production. The conditioning stage, during which highly dispersed elemental selenium is obtained by the reduction of purified selenious acid (H2SeO3) with sulfur dioxide (SO2) represents the crucial step in the preparation of radiopure 82Se samples. The natural selenium (600 g) was first produced in this procedure in order to refine the method. The technique developed was then used to produce 2.5 kg of radiopure enriched selenium (82Se). The produced 82Se samples were wrapped in polyethylene (12 μm thick) and radionuclides present in the sample were analyzed with the BiPo-3 detector. The radiopurity of the plastic materials (chromatographic column material and polypropylene chemical vessels), which were used at all stages, was determined by instrumental neutron activation analysis. The radiopurity of the 82Se foils was checked by measurements with the BiPo-3 spectrometer, which confirmed the high purity of the final product. The measured contamination level for 208Tl was 8–54 μBq/kg, and for 214Bi the detection limit of 600 μBq/kg has been reached.
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Affiliation(s)
- Alimardon V. Rakhimov
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
- Institute of Nuclear Physics of Uzbekistan Academy of Sciences , Tashkent , 100214 , Uzbekistan
| | - A. S. Barabash
- NRC “Kurchatov Institute”, ITEP , 117218 Moscow , Russia
| | | | - S. Blot
- University of Manchester , Manchester M13 9PL , UK
| | - M. Bongrand
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - Ch. Bourgeois
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - D. Breton
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - R. Breier
- Faculty of Mathematics, Physics and Informatics , Comenius University , SK-842 48 Bratislava , Slovakia
| | - E. Birdsall
- University of Manchester , Manchester M13 9PL , UK
| | - V. B. Brudanin
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
- National Research Nuclear University MEPhI , 115409 Moscow , Russia
| | | | - J. Busto
- CPPM, Universite d’Aix Marseille, CNRS/IN2P3 , F-13288 Marseille , France
| | - S. Calvez
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - M. Cascella
- University College London , London WC1E 6BT , UK
| | - C. Cerna
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - J. P. Cesar
- University of Texas at Austin , Austin, TX 78712 , USA
| | - E. Chauveau
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - A. Chopra
- University College London , London WC1E 6BT , UK
| | - G. Claverie
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - S. De Capua
- University of Manchester , Manchester M13 9PL , UK
| | - F. Delalee
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - D. Duchesneau
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc , CNRS/IN2P3, LAPP, 74000 Annecy , France
| | - V. G. Egorov
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - G. Eurin
- University College London , London WC1E 6BT , UK
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - J. J. Evans
- University of Manchester , Manchester M13 9PL , UK
| | - L. Fajt
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - D. V. Filosofov
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - R. Flack
- University College London , London WC1E 6BT , UK
| | - X. Garrido
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - H. Gomez
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - B. Guillon
- LPC Caen, ENSICAEN, Université de Caen , CNRS/IN2P3, F-14050 Caen , France
| | - P. Guzowski
- University of Manchester , Manchester M13 9PL , UK
| | - R. Hodák
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - K. Holý
- Faculty of Mathematics, Physics and Informatics , Comenius University , SK-842 48 Bratislava , Slovakia
| | - A. Huber
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - C. Hugon
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - A. Jeremie
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc , CNRS/IN2P3, LAPP, 74000 Annecy , France
| | - S. Jullian
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - D. V. Karaivanov
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
- Institute for Nuclear Research and Nuclear Energy (INRNE) , 72 Tzarigradsko chaussee, Blvd., BG-1784 Sofia , Bulgaria
| | - M. Kauer
- University College London , London WC1E 6BT , UK
| | - A. A. Klimenko
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - O. I. Kochetov
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | | | - V. Kovalenko
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - K. Lang
- University of Texas at Austin , Austin, TX 78712 , USA
| | - Y. Lemière
- LPC Caen, ENSICAEN, Université de Caen , CNRS/IN2P3, F-14050 Caen , France
| | - T. Le Noblet
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc , CNRS/IN2P3, LAPP, 74000 Annecy , France
| | - Z. Liptak
- University of Texas at Austin , Austin, TX 78712 , USA
| | - X. R. Liu
- University College London , London WC1E 6BT , UK
| | - P. Loaiza
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - G. Lutter
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - J. Maalmi
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - M. Macko
- Faculty of Mathematics, Physics and Informatics , Comenius University , SK-842 48 Bratislava , Slovakia
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - F. Mamedov
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - C. Marquet
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - F. Mauger
- LPC Caen, ENSICAEN, Université de Caen , CNRS/IN2P3, F-14050 Caen , France
| | - A. Minotti
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc , CNRS/IN2P3, LAPP, 74000 Annecy , France
| | - A. A. Mirsagatova
- Institute of Nuclear Physics of Uzbekistan Academy of Sciences , Tashkent , 100214 , Uzbekistan
| | - N. A. Mirzayev
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
- Institute of Radiation Problems of Azerbaijan National Academy of Sciences , AZ1143 B. Vahabzade 9 , Baku , Azerbaijan
| | - I. Moreau
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - B. Morgan
- University of Warwick , Coventry CV4 7AL , UK
| | - J. Mott
- University College London , London WC1E 6BT , UK
| | - I. B. Nemchenok
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - M. Nomachi
- Osaka University , 1-1 Machikaney arna Toyonaka , Osaka 560-0043 , Japan
| | - F. Nova
- University of Texas at Austin , Austin, TX 78712 , USA
| | - H. Ohsumi
- Saga University , Saga 840-8502 , Japan
| | - G. Oliviero
- LPC Caen, ENSICAEN, Université de Caen , CNRS/IN2P3, F-14050 Caen , France
| | - R. B. Pahlka
- University of Texas at Austin , Austin, TX 78712 , USA
| | - J. R. Pater
- University of Manchester , Manchester M13 9PL , UK
| | - V. Palušová
- Faculty of Mathematics, Physics and Informatics , Comenius University , SK-842 48 Bratislava , Slovakia
| | - F. Perrot
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - F. Piquemal
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - P. Povinec
- Faculty of Mathematics, Physics and Informatics , Comenius University , SK-842 48 Bratislava , Slovakia
| | - P. Pridal
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | | | - A. Rebii
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - A. Remoto
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc , CNRS/IN2P3, LAPP, 74000 Annecy , France
| | - B. Richards
- University College London , London WC1E 6BT , UK
| | - J. S. Ricol
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - E. Rukhadze
- Faculty of Mathematics, Physics and Informatics , Comenius University , SK-842 48 Bratislava , Slovakia
| | - N. I. Rukhadze
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - R. Saakyan
- University College London , London WC1E 6BT , UK
| | - I. I. Sadikov
- Institute of Nuclear Physics of Uzbekistan Academy of Sciences , Tashkent , 100214 , Uzbekistan
| | - R. Salazar
- University of Texas at Austin , Austin, TX 78712 , USA
| | - X. Sarazin
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
| | - J. Sedgbeer
- Imperial College London , London SW7 2AZ , UK
| | - Yu. A. Shitov
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - F. Šimkovic
- Faculty of Mathematics, Physics and Informatics , Comenius University , SK-842 48 Bratislava , Slovakia
| | - L. Simard
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay , F-91405 Orsay , France
- Institut Universitaire de France , F-75005 Paris , France
| | - A. Smetana
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - K. Smolek
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - A. A. Smolnikov
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - S. Snow
- University of Warwick , Coventry CV4 7AL , UK
| | | | - B. Soulé
- CENBG, Université de Bordeaux, CNRS/IN2P3 , F-33175 Gradignan , France
| | - M. Špavorova
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - I. Štekl
- Institute of Experimental and Applied Physics , Czech Technical University in Prague , CZ-12800 Prague , Czech Republic
| | - F. A. Tashimova
- Institute of Nuclear Physics of Uzbekistan Academy of Sciences , Tashkent , 100214 , Uzbekistan
| | - J. Thomas
- University College London , London WC1E 6BT , UK
| | - V. Timkin
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - S. Torre
- University College London , London WC1E 6BT , UK
| | | | - V. I. Tretyak
- Joint Institute for Nuclear Research (JINR) , Dubna , 141980 , Russian Federation
| | - V. I. Umatov
- NRC “Kurchatov Institute”, ITEP , 117218 Moscow , Russia
| | - C. Vilela
- University College London , London WC1E 6BT , UK
| | - V. Vorobel
- Charles University, Prague, Faculty of Mathematics and Physics , CZ-12116 Prague , Czech Republic
| | - G. Warot
- Univ. Grenoble Alpes, CNRS, Grenoble INP , LPSC-IN2P3, 38000 Grenoble , France
| | - D. Waters
- University College London , London WC1E 6BT , UK
| | - M. Zampaolo
- Univ. Grenoble Alpes, CNRS, Grenoble INP , LPSC-IN2P3, 38000 Grenoble , France
| | - A. Žukauskas
- Charles University, Prague, Faculty of Mathematics and Physics , CZ-12116 Prague , Czech Republic
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14
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Sterby M, Emanuelsson R, Mamedov F, Strømme M, Sjödin M. Investigating electron transport in a PEDOT/Quinone conducting redox polymer with in situ methods. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.207] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Shevela D, Ananyev G, Vatland AK, Arnold J, Mamedov F, Eichacker LA, Dismukes GC, Messinger J. 'Birth defects' of photosystem II make it highly susceptible to photodamage during chloroplast biogenesis. Physiol Plant 2019; 166:165-180. [PMID: 30693529 DOI: 10.1111/ppl.12932] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 06/09/2023]
Abstract
High solar flux is known to diminish photosynthetic growth rates, reducing biomass productivity and lowering disease tolerance. Photosystem II (PSII) of plants is susceptible to photodamage (also known as photoinactivation) in strong light, resulting in severe loss of water oxidation capacity and destruction of the water-oxidizing complex (WOC). The repair of damaged PSIIs comes at a high energy cost and requires de novo biosynthesis of damaged PSII subunits, reassembly of the WOC inorganic cofactors and membrane remodeling. Employing membrane-inlet mass spectrometry and O2 -polarography under flashing light conditions, we demonstrate that newly synthesized PSII complexes are far more susceptible to photodamage than are mature PSII complexes. We examined these 'PSII birth defects' in barley seedlings and plastids (etiochloroplasts and chloroplasts) isolated at various times during de-etiolation as chloroplast development begins and matures in synchronization with thylakoid membrane biogenesis and grana membrane formation. We show that the degree of PSII photodamage decreases simultaneously with biogenesis of the PSII turnover efficiency measured by O2 -polarography, and with grana membrane stacking, as determined by electron microscopy. Our data from fluorescence, QB -inhibitor binding, and thermoluminescence studies indicate that the decline of the high-light susceptibility of PSII to photodamage is coincident with appearance of electron transfer capability QA - → QB during de-etiolation. This rate depends in turn on the downstream clearing of electrons upon buildup of the complete linear electron transfer chain and the formation of stacked grana membranes capable of longer-range energy transfer.
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Affiliation(s)
- Dmitry Shevela
- Department of Chemistry, Chemical Biological Centre, Umeå University, S-90187, Umeå, Sweden
| | - Gennady Ananyev
- The Waksman Institute of Microbiology, Rutgers University, Piscataway, NJ, 08854, USA
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, 08854, USA
| | - Ann K Vatland
- Centre for Organelle Research, Faculty of Science and Technology, University of Stavanger, N-4036, Stavanger, Norway
| | - Janine Arnold
- Centre for Organelle Research, Faculty of Science and Technology, University of Stavanger, N-4036, Stavanger, Norway
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Uppsala University, S-75237, Uppsala, Sweden
| | - Lutz A Eichacker
- Centre for Organelle Research, Faculty of Science and Technology, University of Stavanger, N-4036, Stavanger, Norway
| | - G Charles Dismukes
- The Waksman Institute of Microbiology, Rutgers University, Piscataway, NJ, 08854, USA
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, 08854, USA
| | - Johannes Messinger
- Department of Chemistry, Chemical Biological Centre, Umeå University, S-90187, Umeå, Sweden
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Uppsala University, S-75237, Uppsala, Sweden
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16
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Chen YE, Yuan S, Lezhneva L, Meurer J, Schwenkert S, Mamedov F, Schröder WP. The Low Molecular Mass Photosystem II Protein PsbTn Is Important for Light Acclimation. Plant Physiol 2019; 179:1739-1753. [PMID: 30538167 PMCID: PMC6446760 DOI: 10.1104/pp.18.01251] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/30/2018] [Indexed: 05/29/2023]
Abstract
Photosystem II (PSII) is a supramolecular complex containing over 30 protein subunits and a large set of cofactors, including various pigments and quinones as well as Mn, Ca, Cl, and Fe ions. Eukaryotic PSII complexes contain many subunits not found in their bacterial counterparts, including the proteins PsbP (PSII), PsbQ, PsbS, and PsbW, as well as the highly homologous, low-molecular-mass subunits PsbTn1 and PsbTn2 whose function is currently unknown. To determine the function of PsbTn1 and PsbTn2, we generated single and double psbTn1 and psbTn2 knockout mutants in Arabidopsis (Arabidopsis thaliana). Cross linking and reciprocal coimmunoprecipitation experiments revealed that PsbTn is a lumenal PSII protein situated next to the cytochrome b 559 subunit PsbE. The removal of the PsbTn proteins decreased the oxygen evolution rate and PSII core phosphorylation level but increased the susceptibility of PSII to photoinhibition and the production of reactive oxygen species. The assembly and stability of PSII were unaffected, indicating that the deficiencies of the psbTn1 psbTn2 double mutants are due to structural changes. Double mutants exhibited a higher rate of nonphotochemical quenching of excited states than the wild type and single mutants, as well as slower state transition kinetics and a lower quantum yield of PSII when grown in the field. Based on these results, we propose that the main function of the PsbTn proteins is to enable PSII to acclimate to light shifts or intense illumination.
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Affiliation(s)
- Yang-Er Chen
- Department of Chemistry, University of Umeå, Umeå SE-901 87, Sweden
- College of Life Sciences, Sichuan Agricultural University, Ya'an 625014, China
| | - Shu Yuan
- College of Resources Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Lina Lezhneva
- Department of Chemistry, University of Umeå, Umeå SE-901 87, Sweden
| | - Jörg Meurer
- Department Biology I, Plant Sciences, Ludwig-Maximilians-University, Munich 82152 Planegg-Martinsried, Germany
| | - Serena Schwenkert
- Department Biology I, Plant Sciences, Ludwig-Maximilians-University, Munich 82152 Planegg-Martinsried, Germany
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
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17
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Shylin SI, Pavliuk MV, D'Amario L, Mamedov F, Sá J, Berggren G, Fritsky IO. Efficient visible light-driven water oxidation catalysed by an iron(iv) clathrochelate complex. Chem Commun (Camb) 2019; 55:3335-3338. [PMID: 30801592 DOI: 10.1039/c9cc00229d] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A water-stable FeIV clathrochelate complex catalyses fast and homogeneous photochemical oxidation of water to dioxygen with a turnover frequency of 2.27 s-1 and a maximum turnover number of 365. An FeV intermediate generated under catalytic conditions is trapped and characterised using EPR and Mössbauer spectroscopy.
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Affiliation(s)
- Sergii I Shylin
- Department of Chemistry -Ångström Laboratory, Uppsala University, PO Box 523, 75120 Uppsala, Sweden.
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18
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Ozer LY, Apostoleris H, Ravaux F, Shylin SI, Mamedov F, Lindblad A, Johansson FOL, Chiesa M, Sá J, Palmisano G. Long-Lasting Non-hydrogenated Dark Titanium Dioxide: Medium Vacuum Anneal for Enhanced Visible Activity of Modified Multiphase Photocatalysts. ChemCatChem 2018. [DOI: 10.1002/cctc.201800097] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lütfiye Y. Ozer
- Department of Chemical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
| | - Harry Apostoleris
- Department of Mechanical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
| | - Florent Ravaux
- Department of Mechanical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
| | - Sergii I. Shylin
- Department of Chemistry-Ånsgtröm Laboratory; Uppsala University; PO BOX 523 SE-751 20 Uppsala Sweden
| | - Fikret Mamedov
- Department of Chemistry-Ånsgtröm Laboratory; Uppsala University; PO BOX 523 SE-751 20 Uppsala Sweden
| | - Andreas Lindblad
- Division of Molecular and Condensed Matter Physics, Department of Physics and Astronomy; Uppsala University; PO BOX 516 SE-751 20 Uppsala Sweden
| | - Fredrik O. L. Johansson
- Division of Molecular and Condensed Matter Physics, Department of Physics and Astronomy; Uppsala University; PO BOX 516 SE-751 20 Uppsala Sweden
| | - Matteo Chiesa
- Department of Mechanical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
- Arctic Renewable Energy Center (ARC), Department of Physics and Technology; The Arctic University of Norway (UiT); Norway
| | - Jacinto Sá
- Department of Chemistry-Ånsgtröm Laboratory; Uppsala University; PO BOX 523 SE-751 20 Uppsala Sweden
- Institute of Physical Chemistry; Polish Academy of Sciences; Warsaw Poland
| | - Giovanni Palmisano
- Department of Chemical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
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Ahmadova N, Mamedov F. Formation of tyrosine radicals in photosystem II under far-red illumination. Photosynth Res 2018; 136:93-106. [PMID: 28924898 PMCID: PMC5851703 DOI: 10.1007/s11120-017-0442-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 09/05/2017] [Indexed: 05/27/2023]
Abstract
Photosystem II (PS II) contains two redox-active tyrosine residues on the donor side at symmetrical positions to the primary donor, P680. TyrZ, part of the water-oxidizing complex, is a preferential fast electron donor while TyrD is a slow auxiliary donor to P680+. We used PS II membranes from spinach which were depleted of the water oxidation complex (Mn-depleted PS II) to study electron donation from both tyrosines by time-resolved EPR spectroscopy under visible and far-red continuous light and laser flash illumination. Our results show that under both illumination regimes, oxidation of TyrD occurs via equilibrium with TyrZ• at pH 4.7 and 6.3. At pH 8.5 direct TyrD oxidation by P680+ occurs in the majority of the PS II centers. Under continuous far-red light illumination these reactions were less effective but still possible. Different photochemical steps were considered to explain the far-red light-induced electron donation from tyrosines and localization of the primary electron hole (P680+) on the ChlD1 in Mn-depleted PS II after the far-red light-induced charge separation at room temperature is suggested.
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Affiliation(s)
- Nigar Ahmadova
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, 751 20, Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, 751 20, Uppsala, Sweden.
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20
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Miranda H, Immerzeel P, Gerber L, Hörnaeus K, Lind SB, Pattanaik B, Lindberg P, Mamedov F, Lindblad P. Sll1783, a monooxygenase associated with polysaccharide processing in the unicellular cyanobacterium Synechocystis PCC 6803. Physiol Plant 2017; 161:182-195. [PMID: 28429526 DOI: 10.1111/ppl.12582] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/25/2017] [Accepted: 03/31/2017] [Indexed: 06/07/2023]
Abstract
Cyanobacteria play a pivotal role as the primary producer in many aquatic ecosystems. The knowledge on the interacting processes of cyanobacteria with its environment - abiotic and biotic factors - is still very limited. Many potential exocytoplasmic proteins in the model unicellular cyanobacterium Synechocystis PCC 6803 have unknown functions and their study is essential to improve our understanding of this photosynthetic organism and its potential for biotechnology use. Here we characterize a deletion mutant of Synechocystis PCC 6803, Δsll1783, a strain that showed a remarkably high light resistance which is related with its lower thylakoid membrane formation. Our results suggests Sll1783 to be involved in a mechanism of polysaccharide degradation and uptake and we hypothesize it might function as a sensor for cell density in cyanobacterial cultures.
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Affiliation(s)
- Hélder Miranda
- Department of Chemistry - Ångström Laboratory, Molecular Biomimetics and Science for Life Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
| | - Peter Immerzeel
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, Umeå, SE-901 83, Sweden
| | - Lorenz Gerber
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, Umeå, SE-901 83, Sweden
| | - Katarina Hörnaeus
- Department of Chemistry - BMC, Analytical Chemistry and Science for Life Laboratory, Uppsala University, Uppsala, SE-751 24, Sweden
| | - Sara Bergström Lind
- Department of Chemistry - BMC, Analytical Chemistry and Science for Life Laboratory, Uppsala University, Uppsala, SE-751 24, Sweden
| | - Bagmi Pattanaik
- Department of Chemistry - Ångström Laboratory, Molecular Biomimetics and Science for Life Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
| | - Pia Lindberg
- Department of Chemistry - Ångström Laboratory, Molecular Biomimetics and Science for Life Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
| | - Fikret Mamedov
- Department of Chemistry - Ångström Laboratory, Molecular Biomimetics and Science for Life Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
| | - Peter Lindblad
- Department of Chemistry - Ångström Laboratory, Molecular Biomimetics and Science for Life Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
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21
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Arnold R, Augier C, Barabash AS, Basharina-Freshville A, Blondel S, Blot S, Bongrand M, Boursette D, Brudanin V, Busto J, Caffrey AJ, Calvez S, Cascella M, Cerna C, Cesar JP, Chapon A, Chauveau E, Chopra A, Dawson L, Duchesneau D, Durand D, Egorov V, Eurin G, Evans JJ, Fajt L, Filosofov D, Flack R, Garrido X, Gómez H, Guillon B, Guzowski P, Hodák R, Huber A, Hubert P, Hugon C, Jullian S, Klimenko A, Kochetov O, Konovalov SI, Kovalenko V, Lalanne D, Lang K, Lemière Y, Le Noblet T, Liptak Z, Liu XR, Loaiza P, Lutter G, Macko M, Macolino C, Mamedov F, Marquet C, Mauger F, Morgan B, Mott J, Nemchenok I, Nomachi M, Nova F, Nowacki F, Ohsumi H, Patrick C, Pahlka RB, Perrot F, Piquemal F, Povinec P, Přidal P, Ramachers YA, Remoto A, Reyss JL, Riddle CL, Rukhadze E, Saakyan R, Salazar R, Sarazin X, Shitov Y, Simard L, Šimkovic F, Smetana A, Smolek K, Smolnikov A, Söldner-Rembold S, Soulé B, Štefánik D, Štekl I, Suhonen J, Sutton CS, Szklarz G, Thomas J, Timkin V, Torre S, Tretyak VI, Tretyak VI, Umatov VI, Vanushin I, Vilela C, Vorobel V, Waters D, Xie F, Žukauskas A. Search for Neutrinoless Quadruple-β Decay of ^{150}Nd with the NEMO-3 Detector. Phys Rev Lett 2017; 119:041801. [PMID: 29341770 DOI: 10.1103/physrevlett.119.041801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Indexed: 06/07/2023]
Abstract
We report the results of a first experimental search for lepton number violation by four units in the neutrinoless quadruple-β decay of ^{150}Nd using a total exposure of 0.19 kg yr recorded with the NEMO-3 detector at the Modane Underground Laboratory. We find no evidence of this decay and set lower limits on the half-life in the range T_{1/2}>(1.1-3.2)×10^{21} yr at the 90% C.L., depending on the model used for the kinematic distributions of the emitted electrons.
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Affiliation(s)
- R Arnold
- IPHC, ULP, CNRS/IN2P3, F-67037 Strasbourg, France
| | - C Augier
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - A S Barabash
- NRC "Kurchatov Institute," ITEP, 117218 Moscow, Russia
| | | | - S Blondel
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - S Blot
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - M Bongrand
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - D Boursette
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - V Brudanin
- JINR, 141980 Dubna, Russia
- National Research Nuclear University MEPhI, 115409 Moscow, Russia
| | - J Busto
- Aix Marseille Université, CNRS, CPPM, F-13288 Marseille, France
| | - A J Caffrey
- Idaho National Laboratory, Idaho Falls, Idaho 83415, USA
| | - S Calvez
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | | | - C Cerna
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - J P Cesar
- University of Texas at Austin, Austin, Texas 78712, USA
| | - A Chapon
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - E Chauveau
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - A Chopra
- UCL, London WC1E 6BT, United Kingdom
| | - L Dawson
- UCL, London WC1E 6BT, United Kingdom
| | - D Duchesneau
- LAPP, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
| | - D Durand
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | | | - G Eurin
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
- UCL, London WC1E 6BT, United Kingdom
| | - J J Evans
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - L Fajt
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | | | - R Flack
- UCL, London WC1E 6BT, United Kingdom
| | - X Garrido
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - H Gómez
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - B Guillon
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - P Guzowski
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - R Hodák
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - A Huber
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - P Hubert
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - C Hugon
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - S Jullian
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | | | | | - S I Konovalov
- NRC "Kurchatov Institute," ITEP, 117218 Moscow, Russia
| | | | - D Lalanne
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - K Lang
- University of Texas at Austin, Austin, Texas 78712, USA
| | - Y Lemière
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - T Le Noblet
- LAPP, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
| | - Z Liptak
- University of Texas at Austin, Austin, Texas 78712, USA
| | - X R Liu
- UCL, London WC1E 6BT, United Kingdom
| | - P Loaiza
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - G Lutter
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - M Macko
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - C Macolino
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - F Mamedov
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - C Marquet
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - F Mauger
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - B Morgan
- University of Warwick, Coventry CV4 7AL, United Kingdom
| | - J Mott
- UCL, London WC1E 6BT, United Kingdom
| | | | - M Nomachi
- Osaka University, 1-1 Machikaneyama Toyonaka, Osaka 560-0043, Japan
| | - F Nova
- University of Texas at Austin, Austin, Texas 78712, USA
| | - F Nowacki
- IPHC, ULP, CNRS/IN2P3, F-67037 Strasbourg, France
| | - H Ohsumi
- Saga University, Saga 840-8502, Japan
| | - C Patrick
- UCL, London WC1E 6BT, United Kingdom
| | - R B Pahlka
- University of Texas at Austin, Austin, Texas 78712, USA
| | - F Perrot
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - F Piquemal
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
- Laboratoire Souterrain de Modane, F-73500 Modane, France
| | - P Povinec
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - P Přidal
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - Y A Ramachers
- University of Warwick, Coventry CV4 7AL, United Kingdom
| | - A Remoto
- LAPP, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
| | - J L Reyss
- LSCE, CNRS, F-91190 Gif-sur-Yvette, France
| | - C L Riddle
- Idaho National Laboratory, Idaho Falls, Idaho 83415, USA
| | - E Rukhadze
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - R Saakyan
- UCL, London WC1E 6BT, United Kingdom
| | - R Salazar
- University of Texas at Austin, Austin, Texas 78712, USA
| | - X Sarazin
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - Yu Shitov
- JINR, 141980 Dubna, Russia
- Imperial College London, London SW7 2AZ, United Kingdom
| | - L Simard
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
- Institut Universitaire de France, F-75005 Paris, France
| | - F Šimkovic
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - A Smetana
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - K Smolek
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | | | | | - B Soulé
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - D Štefánik
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - I Štekl
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - J Suhonen
- Jyväskylä University, FIN-40351 Jyväskylä, Finland
| | - C S Sutton
- MHC, South Hadley, Massachusetts 01075, USA
| | - G Szklarz
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - J Thomas
- UCL, London WC1E 6BT, United Kingdom
| | | | - S Torre
- UCL, London WC1E 6BT, United Kingdom
| | - Vl I Tretyak
- Institute for Nuclear Research, 03028 Kyiv, Ukraine
| | | | - V I Umatov
- NRC "Kurchatov Institute," ITEP, 117218 Moscow, Russia
| | - I Vanushin
- NRC "Kurchatov Institute," ITEP, 117218 Moscow, Russia
| | - C Vilela
- UCL, London WC1E 6BT, United Kingdom
| | - V Vorobel
- Charles University in Prague, Faculty of Mathematics and Physics, CZ-12116 Prague, Czech Republic
| | - D Waters
- UCL, London WC1E 6BT, United Kingdom
| | - F Xie
- UCL, London WC1E 6BT, United Kingdom
| | - A Žukauskas
- Charles University in Prague, Faculty of Mathematics and Physics, CZ-12116 Prague, Czech Republic
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Amole C, Ardid M, Arnquist IJ, Asner DM, Baxter D, Behnke E, Bhattacharjee P, Borsodi H, Bou-Cabo M, Campion P, Cao G, Chen CJ, Chowdhury U, Clark K, Collar JI, Cooper PS, Crisler M, Crowder G, Dahl CE, Das M, Fallows S, Farine J, Felis I, Filgas R, Girard F, Giroux G, Hall J, Harris O, Hoppe EW, Jin M, Krauss CB, Laurin M, Lawson I, Leblanc A, Levine I, Lippincott WH, Mamedov F, Maurya D, Mitra P, Nania T, Neilson R, Noble AJ, Olson S, Ortega A, Plante A, Podviyanuk R, Priya S, Robinson AE, Roeder A, Rucinski R, Scallon O, Seth S, Sonnenschein A, Starinski N, Štekl I, Tardif F, Vázquez-Jáuregui E, Wells J, Wichoski U, Yan Y, Zacek V, Zhang J. Dark Matter Search Results from the PICO-60 C_{3}F_{8} Bubble Chamber. Phys Rev Lett 2017; 118:251301. [PMID: 28696731 DOI: 10.1103/physrevlett.118.251301] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Indexed: 06/07/2023]
Abstract
New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C_{3}F_{8} located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C_{3}F_{8} exhibits excellent electron recoil and alpha decay rejection, and the observed multiple-scattering neutron rate indicates a single-scatter neutron background of less than one event per month. A blind analysis of an efficiency-corrected 1167-kg day exposure at a 3.3-keV thermodynamic threshold reveals no single-scattering nuclear recoil candidates, consistent with the predicted background. These results set the most stringent direct-detection constraint to date on the weakly interacting massive particle (WIMP)-proton spin-dependent cross section at 3.4×10^{-41} cm^{2} for a 30-GeV c^{-2} WIMP, more than 1 order of magnitude improvement from previous PICO results.
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Affiliation(s)
- C Amole
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - M Ardid
- Departament de Física Aplicada, IGIC-Universitat Politècnica de València, Gandia 46730 Spain
| | - I J Arnquist
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - D Baxter
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - E Behnke
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - P Bhattacharjee
- Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - H Borsodi
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - M Bou-Cabo
- Departament de Física Aplicada, IGIC-Universitat Politècnica de València, Gandia 46730 Spain
| | - P Campion
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - G Cao
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - C J Chen
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - U Chowdhury
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - K Clark
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | - J I Collar
- Enrico Fermi Institute, KICP and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - P S Cooper
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Crisler
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G Crowder
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - C E Dahl
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Das
- Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - S Fallows
- Department of Physics, University of Alberta, Edmonton T6G 2E1, Canada
| | - J Farine
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - I Felis
- Departament de Física Aplicada, IGIC-Universitat Politècnica de València, Gandia 46730 Spain
| | - R Filgas
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Cz-12800, Czech Republic
| | - F Girard
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - G Giroux
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - J Hall
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - O Harris
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
- Northeastern Illinois University, Chicago, Illinois 60625, USA
| | - E W Hoppe
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M Jin
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - C B Krauss
- Department of Physics, University of Alberta, Edmonton T6G 2E1, Canada
| | - M Laurin
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - I Lawson
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | - A Leblanc
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - I Levine
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - W H Lippincott
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F Mamedov
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Cz-12800, Czech Republic
| | - D Maurya
- Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Material and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061, USA
| | - P Mitra
- Department of Physics, University of Alberta, Edmonton T6G 2E1, Canada
| | - T Nania
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - A J Noble
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - S Olson
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - A Ortega
- Enrico Fermi Institute, KICP and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - A Plante
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - R Podviyanuk
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - S Priya
- Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Material and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061, USA
| | - A E Robinson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Roeder
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - R Rucinski
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - O Scallon
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - S Seth
- Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - A Sonnenschein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - N Starinski
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - I Štekl
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Cz-12800, Czech Republic
| | - F Tardif
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - E Vázquez-Jáuregui
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- Instituto de Física, Universidad Nacional Autónoma de México, México D. F. 01000, Mexico
| | - J Wells
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - U Wichoski
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - Y Yan
- Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Material and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061, USA
| | - V Zacek
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - J Zhang
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
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23
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Ahmadova N, Ho FM, Styring S, Mamedov F. Tyrozine D oxidation and redox equilibrium in photosystem II. Biochimica et Biophysica Acta (BBA) - Bioenergetics 2017; 1858:407-417. [DOI: 10.1016/j.bbabio.2017.02.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/17/2017] [Accepted: 02/20/2017] [Indexed: 10/20/2022]
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24
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Loaiza P, Barabash AS, Basharina-Freshville A, Birdsall E, Blondel S, Blot S, Bongrand M, Boursette D, Brudanin V, Busto J, Caffrey AJ, Calvez S, Cascella M, Cerna C, Chauveau E, Chopra A, Capua SD, Duchesneau D, Durand D, Egorov V, Eurin G, Evans JJ, Fajt L, Filosofov D, Flack R, Garrido X, Gómez H, Guillon B, Guzowski P, Holý K, Hodák R, Huber A, Hugon C, Jeremie A, Jullian S, Kauer M, Klimenko A, Kochetov O, Konovalov SI, Kovalenko V, Lang K, Lemière Y, Noblet TL, Liptak Z, Liu XR, Lutter G, Macko M, Mamedov F, Marquet C, Mauger F, Morgan B, Mott J, Nemchenok I, Nomachi M, Nova F, Ohsumi H, Oliviéro G, Pahlka RB, Pater J, Perrot F, Piquemal F, Povinec P, Přidal P, Ramachers YA, Remoto A, Richards B, Riddle CL, Rukhadze E, Saakyan R, Sarazin X, Shitov Y, Simard L, Šimkovic F, Smetana A, Smolek K, Smolnikov A, Söldner-Rembold S, Soulé B, Štekl I, Thomas J, Timkin V, Torre S, Tretyak VI, Tretyak VI, Umatov VI, Vilela C, Vorobel V, Waters D, Žukauskas A. The BiPo-3 detector. Appl Radiat Isot 2017; 123:54-59. [PMID: 28242294 DOI: 10.1016/j.apradiso.2017.01.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 12/29/2016] [Accepted: 01/23/2017] [Indexed: 11/17/2022]
Abstract
The BiPo-3 detector is a low radioactive detector dedicated to measuring ultra-low natural contaminations of 208Tl and 214Bi in thin materials, initially developed to measure the radiopurity of the double β decay source foils of the SuperNEMO experiment at the μBq/kg level. The BiPo-3 technique consists in installing the foil of interest between two thin ultra-radiopure scintillators coupled to low radioactive photomultipliers. The design and performances of the detector are presented. In this paper, the final results of the 208Tl and 214Bi activity measurements of the first enriched 82Se foils are reported for the first time, showing the capability of the detector to reach sensitivities in the range of some μBq/kg.
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Affiliation(s)
- P Loaiza
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - A S Barabash
- NRC "Kurchatov Institute", ITEP, 117218 Moscow, Russia
| | | | - E Birdsall
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - S Blondel
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - S Blot
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - M Bongrand
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - D Boursette
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - V Brudanin
- JINR, 141980 Dubna, Russia; National Research Nuclear University MEPhI, 115409, Moscow, Russia
| | - J Busto
- Aix Marseille Univ., CNRS, CPPM, Marseille, France
| | - A J Caffrey
- Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - S Calvez
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - M Cascella
- University College London, London WC1E 6BT, United Kingdom
| | - C Cerna
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - E Chauveau
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - A Chopra
- University College London, London WC1E 6BT, United Kingdom
| | - S De Capua
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - D Duchesneau
- LAPP, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
| | - D Durand
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | | | - G Eurin
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France; University College London, London WC1E 6BT, United Kingdom
| | - J J Evans
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - L Fajt
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | | | - R Flack
- University College London, London WC1E 6BT, United Kingdom
| | - X Garrido
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - H Gómez
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - B Guillon
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - P Guzowski
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - K Holý
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - R Hodák
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - A Huber
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - C Hugon
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - A Jeremie
- LAPP, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
| | - S Jullian
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - M Kauer
- University College London, London WC1E 6BT, United Kingdom
| | | | | | - S I Konovalov
- NRC "Kurchatov Institute", ITEP, 117218 Moscow, Russia
| | | | - K Lang
- University of Texas at Austin, Austin, TX78712, United States
| | - Y Lemière
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - T Le Noblet
- LAPP, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
| | - Z Liptak
- University of Texas at Austin, Austin, TX78712, United States
| | - X R Liu
- University College London, London WC1E 6BT, United Kingdom
| | - G Lutter
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - M Macko
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - F Mamedov
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - C Marquet
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - F Mauger
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - B Morgan
- University of Warwick, Coventry CV4 7AL, United Kingdom
| | - J Mott
- University College London, London WC1E 6BT, United Kingdom
| | | | - M Nomachi
- Osaka University, 1-1 Machikaney arna Toyonaka, Osaka 560-0043, Japan
| | - F Nova
- University of Texas at Austin, Austin, TX78712, United States
| | - H Ohsumi
- Saga University, Saga 840-8502, Japan
| | - G Oliviéro
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - R B Pahlka
- University of Texas at Austin, Austin, TX78712, United States
| | - J Pater
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - F Perrot
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - F Piquemal
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France; Laboratoire Souterrain de Modane, F-73500 Modane, France
| | - P Povinec
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - P Přidal
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - Y A Ramachers
- University of Warwick, Coventry CV4 7AL, United Kingdom
| | - A Remoto
- LAPP, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
| | - B Richards
- University College London, London WC1E 6BT, United Kingdom
| | - C L Riddle
- Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - E Rukhadze
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - R Saakyan
- University College London, London WC1E 6BT, United Kingdom
| | - X Sarazin
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
| | - Yu Shitov
- JINR, 141980 Dubna, Russia; Imperial College London, London SW7 2AZ, United Kingdom
| | - L Simard
- LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France; Institut Universitaire de France, F-75005 Paris, France
| | - F Šimkovic
- FMFI, Comenius University, SK-842 48 Bratislava, Slovakia
| | - A Smetana
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - K Smolek
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | | | | | - B Soulé
- CENBG, Université de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
| | - I Štekl
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
| | - J Thomas
- University College London, London WC1E 6BT, United Kingdom
| | | | - S Torre
- University College London, London WC1E 6BT, United Kingdom
| | - Vl I Tretyak
- Institute for Nuclear Research, MSP 03680 Kyiv, Ukraine
| | | | - V I Umatov
- NRC "Kurchatov Institute", ITEP, 117218 Moscow, Russia
| | - C Vilela
- University College London, London WC1E 6BT, United Kingdom
| | - V Vorobel
- Charles University, Prague, Faculty of Mathematics and Physics, CZ-12116 Prague, Czech Republic
| | - D Waters
- University College London, London WC1E 6BT, United Kingdom
| | - A Žukauskas
- Charles University, Prague, Faculty of Mathematics and Physics, CZ-12116 Prague, Czech Republic
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25
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Sjöholm J, Ho F, Ahmadova N, Brinkert K, Hammarström L, Mamedov F, Styring S. The protonation state around Tyr D /Tyr D • in photosystem II is reflected in its biphasic oxidation kinetics. Biochimica et Biophysica Acta (BBA) - Bioenergetics 2017; 1858:147-155. [DOI: 10.1016/j.bbabio.2016.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 10/31/2016] [Accepted: 11/02/2016] [Indexed: 10/20/2022]
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Yang L, Huang X, Mamedov F, Zhang P, Gogoll A, Strømme M, Sjödin M. Conducting redox polymers with non-activated charge transport properties. Phys Chem Chem Phys 2017; 19:25052-25058. [DOI: 10.1039/c7cp03939e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The conduction mechanism of terephthalate-substituted polythiophene is dominated by residual scattering and shows a negative dependence on temperature.
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Affiliation(s)
- Li Yang
- Department of Engineering Sciences
- Uppsala University
- 75121 Uppsala
- Sweden
| | - Xiao Huang
- Department of Chemistry-BMC
- Uppsala University
- 75123 Uppsala
- Sweden
| | - Fikret Mamedov
- Department of Chemistry-Ångström
- Uppsala University
- 75120 Uppsala
- Sweden
| | - Peng Zhang
- Department of Engineering Sciences
- Uppsala University
- 75121 Uppsala
- Sweden
| | - Adolf Gogoll
- Department of Chemistry-BMC
- Uppsala University
- 75123 Uppsala
- Sweden
| | - Maria Strømme
- Department of Engineering Sciences
- Uppsala University
- 75121 Uppsala
- Sweden
| | - Martin Sjödin
- Department of Engineering Sciences
- Uppsala University
- 75121 Uppsala
- Sweden
- Department of Applied Chemistry
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27
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Volgusheva A, Kruse O, Styring S, Mamedov F. Changes in the Photosystem II complex associated with hydrogen formation in sulfur deprived Chlamydomonas reinhardtii. ALGAL RES 2016. [DOI: 10.1016/j.algal.2016.06.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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von Sydow L, Schwenkert S, Meurer J, Funk C, Mamedov F, Schröder WP. The PsbY protein of Arabidopsis Photosystem II is important for the redox control of cytochrome b559. Biochim Biophys Acta 2016; 1857:1524-1533. [PMID: 27220875 DOI: 10.1016/j.bbabio.2016.05.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/19/2016] [Accepted: 05/20/2016] [Indexed: 12/21/2022]
Abstract
Photosystem II is a protein complex embedded in the thylakoid membrane of photosynthetic organisms and performs the light driven water oxidation into electrons and molecular oxygen that initiate the photosynthetic process. This important complex is composed of more than two dozen of intrinsic and peripheral subunits, of those half are low molecular mass proteins. PsbY is one of those low molecular mass proteins; this 4.7-4.9kDa intrinsic protein seems not to bind any cofactors. Based on structural data from cyanobacterial and red algal Photosystem II PsbY is located closely or in direct contact with cytochrome b559. Cytb559 consists of two protein subunits (PsbE and PsbF) ligating a heme-group in-between them. While the exact function of this component in Photosystem II has not yet been clarified, a crucial role for assembly and photo-protection in prokaryotic complexes has been suggested. One unique feature of Cytb559 is its redox-heterogeneity, forming high, medium and low potential, however, neither origin nor mechanism are known. To reveal the function of PsbY within Photosystem II of Arabidopsis we have analysed PsbY knock-out plants and compared them to wild type and to complemented mutant lines. We show that in the absence of PsbY protein Cytb559 is only present in its oxidized, low potential form and plants depleted of PsbY were found to be more susceptible to photoinhibition.
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Affiliation(s)
- Lotta von Sydow
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Serena Schwenkert
- Department Biologie I, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Jörg Meurer
- Department Biologie I, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Christiane Funk
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
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29
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Norrbo I, Gluchowski P, Hyppänen I, Laihinen T, Laukkanen P, Mäkelä J, Mamedov F, Santos HS, Sinkkonen J, Tuomisto M, Viinikanoja A, Lastusaari M. Mechanisms of Tenebrescence and Persistent Luminescence in Synthetic Hackmanite Na8Al6Si6O24(Cl,S)2. ACS Appl Mater Interfaces 2016; 8:11592-11602. [PMID: 27088662 DOI: 10.1021/acsami.6b01959] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Synthetic hackmanites, Na8Al6Si6O24(Cl,S)2, showing efficient purple tenebrescence and blue/white persistent luminescence were studied using different spectroscopic techniques to obtain a quantified view on the storage and release of optical energy in these materials. The persistent luminescence emitter was identified as impurity Ti(3+) originating from the precursor materials used in the synthesis, and the energy storage for persistent luminescence was postulated to take place in oxygen vacancies within the aluminosilicate framework. Tenebrescence, on the other hand, was observed to function within the Na4(Cl,S) entities located in the cavities of the aluminosilicate framework. The mechanism of persistent luminescence and tenebrescence in hackmanite is presented for the first time.
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Affiliation(s)
| | - Pawel Gluchowski
- Institute of Low Temperature and Structure Research Polish Academy of Sciences , PL-50422 Wroclaw, Poland
| | | | - Tero Laihinen
- Doctoral Programme in Physical and Chemical Sciences, University of Turku Graduate School (UTUGS) , FI-20014 Turku, Finland
| | | | - Jaakko Mäkelä
- Doctoral Programme in Physical and Chemical Sciences, University of Turku Graduate School (UTUGS) , FI-20014 Turku, Finland
| | - Fikret Mamedov
- Department of Chemistry, Molecular Biomimetics, Uppsala University , SE-75120 Uppsala, Sweden
| | - Hellen S Santos
- Doctoral Programme in Physical and Chemical Sciences, University of Turku Graduate School (UTUGS) , FI-20014 Turku, Finland
| | | | - Minnea Tuomisto
- Doctoral Programme in Physical and Chemical Sciences, University of Turku Graduate School (UTUGS) , FI-20014 Turku, Finland
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Järvi S, Isojärvi J, Kangasjärvi S, Salojärvi J, Mamedov F, Suorsa M, Aro EM. Photosystem II Repair and Plant Immunity: Lessons Learned from Arabidopsis Mutant Lacking the THYLAKOID LUMEN PROTEIN 18.3. Front Plant Sci 2016; 7:405. [PMID: 27064270 PMCID: PMC4814454 DOI: 10.3389/fpls.2016.00405] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 03/16/2016] [Indexed: 05/29/2023]
Abstract
Chloroplasts play an important role in the cellular sensing of abiotic and biotic stress. Signals originating from photosynthetic light reactions, in the form of redox and pH changes, accumulation of reactive oxygen and electrophile species or stromal metabolites are of key importance in chloroplast retrograde signaling. These signals initiate plant acclimation responses to both abiotic and biotic stresses. To reveal the molecular responses activated by rapid fluctuations in growth light intensity, gene expression analysis was performed with Arabidopsis thaliana wild type and the tlp18.3 mutant plants, the latter showing a stunted growth phenotype under fluctuating light conditions (Biochem. J, 406, 415-425). Expression pattern of genes encoding components of the photosynthetic electron transfer chain did not differ between fluctuating and constant light conditions, neither in wild type nor in tlp18.3 plants, and the composition of the thylakoid membrane protein complexes likewise remained unchanged. Nevertheless, the fluctuating light conditions repressed in wild-type plants a broad spectrum of genes involved in immune responses, which likely resulted from shade-avoidance responses and their intermixing with hormonal signaling. On the contrary, in the tlp18.3 mutant plants there was an imperfect repression of defense-related transcripts upon growth under fluctuating light, possibly by signals originating from minor malfunction of the photosystem II (PSII) repair cycle, which directly or indirectly modulated the transcript abundances of genes related to light perception via phytochromes. Consequently, a strong allocation of resources to defense reactions in the tlp18.3 mutant plants presumably results in the stunted growth phenotype under fluctuating light.
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Affiliation(s)
- Sari Järvi
- Molecular Plant Biology, Department of Biochemistry, University of TurkuTurku, Finland
| | - Janne Isojärvi
- Molecular Plant Biology, Department of Biochemistry, University of TurkuTurku, Finland
| | | | - Jarkko Salojärvi
- Plant Biology, Department of Biosciences, University of HelsinkiHelsinki, Finland
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry—Ångström Laboratory, Uppsala UniversityUppsala, Sweden
| | - Marjaana Suorsa
- Molecular Plant Biology, Department of Biochemistry, University of TurkuTurku, Finland
| | - Eva-Mari Aro
- Molecular Plant Biology, Department of Biochemistry, University of TurkuTurku, Finland
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31
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Tiwari A, Mamedov F, Grieco M, Suorsa M, Jajoo A, Styring S, Tikkanen M, Aro EM. Photodamage of iron-sulphur clusters in photosystem I induces non-photochemical energy dissipation. Nat Plants 2016; 2:16035. [PMID: 27249566 DOI: 10.1038/nplants.2016.35] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 02/22/2016] [Indexed: 05/19/2023]
Abstract
Photosystem I (PSI) uses light energy and electrons supplied by photosystem II (PSII) to reduce NADP(+) to NADPH. PSI is very tolerant of excess light but extremely sensitive to excess electrons from PSII. It has been assumed that PSI is protected from photoinhibition by strict control of the intersystem electron transfer chain (ETC). Here we demonstrate that the iron-sulphur (FeS) clusters of PSI are more sensitive to high light stress than previously anticipated, but PSI with damaged FeS clusters still functions as a non-photochemical photoprotective energy quencher (PSI-NPQ). Upon photoinhibition of PSI, the highly reduced ETC further triggers thylakoid phosphorylation-based mechanisms that increase energy flow towards PSI. It is concluded that the sensitivity of FeS clusters provides an additional photoprotective mechanism that is able to downregulate PSII, based on PSI quenching and protein phosphorylation.
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Affiliation(s)
- Arjun Tiwari
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
| | - Michele Grieco
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Marjaana Suorsa
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Anjana Jajoo
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Stenbjörn Styring
- Molecular Biomimetics, Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
| | - Mikko Tikkanen
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Eva-Mari Aro
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
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32
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Retegan M, Krewald V, Mamedov F, Neese F, Lubitz W, Cox N, Pantazis DA. A five-coordinate Mn(iv) intermediate in biological water oxidation: spectroscopic signature and a pivot mechanism for water binding. Chem Sci 2015; 7:72-84. [PMID: 29861966 PMCID: PMC5950799 DOI: 10.1039/c5sc03124a] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 11/17/2015] [Indexed: 01/16/2023] Open
Abstract
Among the four photo-driven transitions of the water-oxidizing tetramanganese-calcium cofactor of biological photosynthesis, the second-last step of the catalytic cycle, that is the S2 to S3 state transition, is the crucial step that poises the catalyst for the final O-O bond formation. This transition, whose intermediates are not yet fully understood, is a multi-step process that involves the redox-active tyrosine residue and includes oxidation and deprotonation of the catalytic cluster, as well as the binding of a water molecule. Spectroscopic data has the potential to shed light on the sequence of events that comprise this catalytic step, which still lacks a structural interpretation. In this work the S2-S3 state transition is studied and a key intermediate species is characterized: it contains a Mn3O4Ca cubane subunit linked to a five-coordinate Mn(iv) ion that adopts an approximately trigonal bipyramidal ligand field. It is shown using high-level density functional and multireference wave function calculations that this species accounts for the near-infrared absorption and electron paramagnetic resonance observations on metastable S2-S3 intermediates. The results confirm that deprotonation and Mn oxidation of the cofactor must precede the coordination of a water molecule, and lead to identification of a novel low-energy water binding mode that has important implications for the identity of the substrates in the mechanism of biological water oxidation.
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Affiliation(s)
- Marius Retegan
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , 45470 Mülheim an der Ruhr , Germany . ;
| | - Vera Krewald
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , 45470 Mülheim an der Ruhr , Germany . ;
| | - Fikret Mamedov
- Molecular Biomimetics , Department of Chemistry - Ångstrom Laboratory , Uppsala University , Box 523 , 75120 Uppsala , Sweden
| | - Frank Neese
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , 45470 Mülheim an der Ruhr , Germany . ;
| | - Wolfgang Lubitz
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , 45470 Mülheim an der Ruhr , Germany . ;
| | - Nicholas Cox
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , 45470 Mülheim an der Ruhr , Germany . ;
| | - Dimitrios A Pantazis
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , 45470 Mülheim an der Ruhr , Germany . ;
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Suorsa M, Rantala M, Mamedov F, Lespinasse M, Trotta A, Grieco M, Vuorio E, Tikkanen M, Järvi S, Aro EM. Light acclimation involves dynamic re-organization of the pigment-protein megacomplexes in non-appressed thylakoid domains. Plant J 2015; 84:360-73. [PMID: 26332430 DOI: 10.1111/tpj.13004] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 08/20/2015] [Accepted: 08/24/2015] [Indexed: 05/24/2023]
Abstract
Thylakoid energy metabolism is crucial for plant growth, development and acclimation. Non-appressed thylakoids harbor several high molecular mass pigment-protein megacomplexes that have flexible compositions depending upon the environmental cues. This composition is important for dynamic energy balancing in photosystems (PS) I and II. We analysed the megacomplexes of Arabidopsis wild type (WT) plants and of several thylakoid regulatory mutants. The stn7 mutant, which is defective in phosphorylation of the light-harvesting complex (LHC) II, possessed a megacomplex composition that was strikingly different from that of the WT. Of the nine megacomplexes in total for the non-appressed thylakoids, the largest megacomplex in particular was less abundant in the stn7 mutant under standard growth conditions. This megacomplex contains both PSI and PSII and was recently shown to allow energy spillover between PSII and PSI (Nat. Commun., 6, 2015, 6675). The dynamics of the megacomplex composition was addressed by exposing plants to different light conditions prior to thylakoid isolation. The megacomplex pattern in the WT was highly dynamic. Under darkness or far red light it showed low levels of LHCII phosphorylation and resembled the stn7 pattern; under low light, which triggers LHCII phosphorylation, it resembled that of the tap38/pph1 phosphatase mutant. In contrast, solubilization of the entire thylakoid network with dodecyl maltoside, which efficiently solubilizes pigment-protein complexes from all thylakoid compartments, revealed that the pigment-protein composition remained stable despite the changing light conditions or mutations that affected LHCII (de)phosphorylation. We conclude that the composition of pigment-protein megacomplexes specifically in non-appressed thylakoids undergoes redox-dependent changes, thus facilitating maintenance of the excitation balance between the two photosystems upon changes in light conditions.
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Affiliation(s)
- Marjaana Suorsa
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Marjaana Rantala
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, 75120, Uppsala, Sweden
| | - Maija Lespinasse
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Andrea Trotta
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Michele Grieco
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Eerika Vuorio
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Mikko Tikkanen
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Sari Järvi
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
| | - Eva-Mari Aro
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014, Turku, Finland
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34
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Fristedt R, Herdean A, Blaby-Haas CE, Mamedov F, Merchant SS, Last RL, Lundin B. PHOTOSYSTEM II PROTEIN33, a protein conserved in the plastid lineage, is associated with the chloroplast thylakoid membrane and provides stability to photosystem II supercomplexes in Arabidopsis. Plant Physiol 2015; 167:481-92. [PMID: 25511433 PMCID: PMC4326745 DOI: 10.1104/pp.114.253336] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Photosystem II (PSII) is a multiprotein complex that catalyzes the light-driven water-splitting reactions of oxygenic photosynthesis. Light absorption by PSII leads to the production of excited states and reactive oxygen species that can cause damage to this complex. Here, we describe Arabidopsis (Arabidopsis thaliana) At1g71500, which encodes a previously uncharacterized protein that is a PSII auxiliary core protein and hence is named PHOTOSYSTEM II PROTEIN33 (PSB33). We present evidence that PSB33 functions in the maintenance of PSII-light-harvesting complex II (LHCII) supercomplex organization. PSB33 encodes a protein with a chloroplast transit peptide and one transmembrane segment. In silico analysis of PSB33 revealed a light-harvesting complex-binding motif within the transmembrane segment and a large surface-exposed head domain. Biochemical analysis of PSII complexes further indicates that PSB33 is an integral membrane protein located in the vicinity of LHCII and the PSII CP43 reaction center protein. Phenotypic characterization of mutants lacking PSB33 revealed reduced amounts of PSII-LHCII supercomplexes, very low state transition, and a lower capacity for nonphotochemical quenching, leading to increased photosensitivity in the mutant plants under light stress. Taken together, these results suggest a role for PSB33 in regulating and optimizing photosynthesis in response to changing light levels.
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Affiliation(s)
- Rikard Fristedt
- Department of Chemistry and Biochemistry (R.F., C.E.B.-H., S.S.M.) and Institute for Genomics and Proteomics (S.S.M.), University of California, Los Angeles, California 90095;Department of Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden (A.H., B.L.);Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden (F.M.); andDepartment of Biochemistry and Molecular Biology and Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824 (R.L.L., B.L.)
| | - Andrei Herdean
- Department of Chemistry and Biochemistry (R.F., C.E.B.-H., S.S.M.) and Institute for Genomics and Proteomics (S.S.M.), University of California, Los Angeles, California 90095;Department of Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden (A.H., B.L.);Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden (F.M.); andDepartment of Biochemistry and Molecular Biology and Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824 (R.L.L., B.L.)
| | - Crysten E Blaby-Haas
- Department of Chemistry and Biochemistry (R.F., C.E.B.-H., S.S.M.) and Institute for Genomics and Proteomics (S.S.M.), University of California, Los Angeles, California 90095;Department of Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden (A.H., B.L.);Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden (F.M.); andDepartment of Biochemistry and Molecular Biology and Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824 (R.L.L., B.L.)
| | - Fikret Mamedov
- Department of Chemistry and Biochemistry (R.F., C.E.B.-H., S.S.M.) and Institute for Genomics and Proteomics (S.S.M.), University of California, Los Angeles, California 90095;Department of Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden (A.H., B.L.);Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden (F.M.); andDepartment of Biochemistry and Molecular Biology and Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824 (R.L.L., B.L.)
| | - Sabeeha S Merchant
- Department of Chemistry and Biochemistry (R.F., C.E.B.-H., S.S.M.) and Institute for Genomics and Proteomics (S.S.M.), University of California, Los Angeles, California 90095;Department of Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden (A.H., B.L.);Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden (F.M.); andDepartment of Biochemistry and Molecular Biology and Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824 (R.L.L., B.L.)
| | - Robert L Last
- Department of Chemistry and Biochemistry (R.F., C.E.B.-H., S.S.M.) and Institute for Genomics and Proteomics (S.S.M.), University of California, Los Angeles, California 90095;Department of Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden (A.H., B.L.);Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden (F.M.); andDepartment of Biochemistry and Molecular Biology and Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824 (R.L.L., B.L.)
| | - Björn Lundin
- Department of Chemistry and Biochemistry (R.F., C.E.B.-H., S.S.M.) and Institute for Genomics and Proteomics (S.S.M.), University of California, Los Angeles, California 90095;Department of Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden (A.H., B.L.);Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden (F.M.); andDepartment of Biochemistry and Molecular Biology and Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824 (R.L.L., B.L.)
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35
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Volgusheva A, Kukarskikh G, Krendeleva T, Rubin A, Mamedov F. Hydrogen photoproduction in green algae Chlamydomonas reinhardtii under magnesium deprivation. RSC Adv 2015. [DOI: 10.1039/c4ra12710b] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mg deprivation results in the sustained H2 formation in Chlamydomonas reinhardtii.
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Affiliation(s)
- Alena Volgusheva
- Department of Biophysics
- Faculty of Biology
- Lomonosov Moscow State University
- 119991 Moscow
- Russian Federation
| | - Galina Kukarskikh
- Department of Biophysics
- Faculty of Biology
- Lomonosov Moscow State University
- 119991 Moscow
- Russian Federation
| | - Tatyana Krendeleva
- Department of Biophysics
- Faculty of Biology
- Lomonosov Moscow State University
- 119991 Moscow
- Russian Federation
| | - Andrey Rubin
- Department of Biophysics
- Faculty of Biology
- Lomonosov Moscow State University
- 119991 Moscow
- Russian Federation
| | - Fikret Mamedov
- Molecular Biomimetics
- Department of Chemistry – Ångström Laboratory
- Uppsala University
- 751 20 Uppsala
- Sweden
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36
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Affiliation(s)
- Johannes Sjöholm
- Molecular Biomimetics, Department
of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, SE-751 20 Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department
of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, SE-751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- Molecular Biomimetics, Department
of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, SE-751 20 Uppsala, Sweden
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37
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Abstract
The far-red limit of photosystem I (PS I) photochemistry was studied by EPR spectroscopy using laser flashes between 730 and 850 nm. In manganese-depleted spinach thylakoid membranes, the primary donor in PS I, P700, was oxidized simultaneously with tyrosine Z, the secondary donor in PS II. It was found that at 295 K PS I photochemistry, observed as P700 (+) formation, was functional up to 840 nm. This is 30 nm further to the red region than was reported for PS II photochemistry (Thapper, A., Mamedov, F., Mokvist, F., Hammarström, L., and Styring, S. (2009) Plant Cell 21, 2391-2401). The same far-red limit for the P700 (+) formation was observed in a PS I reaction center core preparation from Nostoc punctiforme. The reduction of the acceptor side of PS I, observed as reduction of the iron-sulfur centers FA and FB by low temperature EPR measurements, was also functional at 15 K with light up to >830 nm. Taken together, these results, obtained from both plants and cyanobacteria, most likely rule out involvement of the red-absorbing antenna chlorophylls in this reaction. Instead we propose the existence of weak charge transfer bands absorbing in the far-red region in the ensemble of excitonically coupled chlorophyll a molecules around P700 similar to what has been found in the reaction center of PS II. These charge transfer bands could be responsible for the far-red light absorption leading to PS I photochemistry at wavelengths up to 840 nm.
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Affiliation(s)
- Fredrik Mokvist
- From Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, Ångström Laboratory, P. O. Box 523, S-751 20 Uppsala, Sweden
| | - Fikret Mamedov
- From Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, Ångström Laboratory, P. O. Box 523, S-751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- From Molecular Biomimetics, Department of Chemistry-Ångström, Uppsala University, Ångström Laboratory, P. O. Box 523, S-751 20 Uppsala, Sweden
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Mokvist F, Sjöholm J, Mamedov F, Styring S. The Photochemistry in Photosystem II at 5 K Is Different in Visible and Far-Red Light. Biochemistry 2014; 53:4228-38. [DOI: 10.1021/bi5006392] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fredrik Mokvist
- Molecular Biomimetics, Department
of Chemistry-Ångström, Uppsala University, Ångström Laboratory, P.O. Box 523, S-751 20 Uppsala, Sweden
| | - Johannes Sjöholm
- Molecular Biomimetics, Department
of Chemistry-Ångström, Uppsala University, Ångström Laboratory, P.O. Box 523, S-751 20 Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department
of Chemistry-Ångström, Uppsala University, Ångström Laboratory, P.O. Box 523, S-751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- Molecular Biomimetics, Department
of Chemistry-Ångström, Uppsala University, Ångström Laboratory, P.O. Box 523, S-751 20 Uppsala, Sweden
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39
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Karonen M, Mattila H, Huang P, Mamedov F, Styring S, Tyystjärvi E. A tandem mass spectrometric method for singlet oxygen measurement. Photochem Photobiol 2014; 90:965-71. [PMID: 24849296 DOI: 10.1111/php.12291] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 05/15/2014] [Indexed: 11/29/2022]
Abstract
Singlet oxygen, a harmful reactive oxygen species, can be quantified with the substance 2,2,6,6-tetramethylpiperidine (TEMP) that reacts with singlet oxygen, forming a stable nitroxyl radical (TEMPO). TEMPO has earlier been quantified with electron paramagnetic resonance (EPR) spectroscopy. In this study, we designed an ultra-high-performance liquid chromatographic-tandem mass spectrometric (UHPLC-ESI-MS/MS) quantification method for TEMPO and showed that the method based on multiple reaction monitoring (MRM) can be used for the measurements of singlet oxygen from both nonbiological and biological samples. Results obtained with both UHPLC-ESI-MS/MS and EPR methods suggest that plant thylakoid membranes produce 3.7 × 10(-7) molecules of singlet oxygen per chlorophyll molecule in a second when illuminated with the photosynthetic photon flux density of 2000 μmol m(-2 ) s(-1).
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Affiliation(s)
- Maarit Karonen
- Laboratory of Organic Chemistry and Chemical Biology, Department of Chemistry, University of Turku, Turku, Finland
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40
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Suorsa M, Rantala M, Danielsson R, Järvi S, Paakkarinen V, Schröder WP, Styring S, Mamedov F, Aro EM. Dark-adapted spinach thylakoid protein heterogeneity offers insights into the photosystem II repair cycle. Biochim Biophys Acta 2013; 1837:1463-71. [PMID: 24296034 DOI: 10.1016/j.bbabio.2013.11.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 11/18/2013] [Accepted: 11/22/2013] [Indexed: 02/01/2023]
Abstract
In higher plants, thylakoid membrane protein complexes show lateral heterogeneity in their distribution: photosystem (PS) II complexes are mostly located in grana stacks, whereas PSI and adenosine triphosphate (ATP) synthase are mostly found in the stroma-exposed thylakoids. However, recent research has revealed strong dynamics in distribution of photosystems and their light harvesting antenna along the thylakoid membrane. Here, the dark-adapted spinach (Spinacia oleracea L.) thylakoid network was mechanically fragmented and the composition of distinct PSII-related proteins in various thylakoid subdomains was analyzed in order to get more insights into the composition and localization of various PSII subcomplexes and auxiliary proteins during the PSII repair cycle. Most of the PSII subunits followed rather equal distribution with roughly 70% of the proteins located collectively in the grana thylakoids and grana margins; however, the low molecular mass subunits PsbW and PsbX as well as the PsbS proteins were found to be more exclusively located in grana thylakoids. The auxiliary proteins assisting in repair cycle of PSII were mostly located in stroma-exposed thylakoids, with the exception of THYLAKOID LUMEN PROTEIN OF 18.3 (TLP18.3), which was more evenly distributed between the grana and stroma thylakoids. The TL29 protein was present exclusively in grana thylakoids. Intriguingly, PROTON GRADIENT REGULATION5 (PGR5) was found to be distributed quite evenly between grana and stroma thylakoids, whereas PGR5-LIKE PHOTOSYNTHETIC PHENOTYPE1 (PGRL1) was highly enriched in the stroma thylakoids and practically missing from the grana cores. This article is part of a special issue entitled: photosynthesis research for sustainability: keys to produce clean energy.
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Affiliation(s)
- Marjaana Suorsa
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Marjaana Rantala
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Ravi Danielsson
- Department of Biochemistry, Center for Chemistry and Chemical Engineering, Lund University, SE-22100 Lund, Sweden
| | - Sari Järvi
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Virpi Paakkarinen
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland
| | - Wolfgang P Schröder
- Umeå Plant Science Center and Department of Chemistry, Linnaeus väg 10, University of Umeå, SE-901 87 Umeå, Sweden
| | - Stenbjörn Styring
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, University of Uppsala, Box 523, SE-75120 Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, University of Uppsala, Box 523, SE-75120 Uppsala, Sweden.
| | - Eva-Mari Aro
- Department of Biochemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland.
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41
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Sjöholm J, Chen G, Ho F, Mamedov F, Styring S. Split electron paramagnetic resonance signal induction in Photosystem II suggests two binding sites in the S2 state for the substrate analogue methanol. Biochemistry 2013; 52:3669-77. [PMID: 23621812 DOI: 10.1021/bi400144e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Illuminating a photosystem II sample at low temperatures (here 5-10 K) yields so-called split signals detectable with continuous wave-electron paramagnetic resonance (CW-EPR). These signals reflect the oxidized, deprotonated radical of D1-Tyr161 (YZ(•)) in a magnetic interaction with the CaMn4 cluster in a particular S state. The intensity of the split EPR signals are affected by the addition of the water substrate analogue methanol. This was previously shown by the induction of split EPR signals from the S1, S3, and S0 states [Su, J.-H. et al. (2006) Biochemistry 45, 7617-7627.]. Here, we use two split EPR signals induced from photosystem II trapped in the S2 state to further probe the binding of methanol in an S state dependent manner. The signals are induced with either visible or near-infrared light illumination provided at 5-10 K where methanol cannot bind or unbind from its site. The results imply that the binding of methanol not only changes the magnetic properties of the CaMn4 cluster but also the hydrogen bond network in the oxygen evolving complex (OEC), thereby affecting the relative charge of the S2 state. The induction mechanisms for the two split EPR signals are different resulting in two different redox states, S2YZ(•) and S1YZ(•) respectively. The two states show different methanol dependence for their induction. This indicates the existence of two binding sites for methanol in the CaMn4 cluster. It is proposed that methanol binds to MnA with high affinity and to MnD with lower affinity. The molecular nature and S-state dependence of the methanol binding to each respective site are discussed.
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Affiliation(s)
- Johannes Sjöholm
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala University , P. O. Box 523, SE-751 20 Uppsala, Sweden
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Yin L, Fristedt R, Herdean A, Solymosi K, Bertrand M, Andersson MX, Mamedov F, Vener AV, Schoefs B, Spetea C. Photosystem II function and dynamics in three widely used Arabidopsis thaliana accessions. PLoS One 2012; 7:e46206. [PMID: 23029436 PMCID: PMC3460815 DOI: 10.1371/journal.pone.0046206] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 08/30/2012] [Indexed: 12/23/2022] Open
Abstract
Columbia-0 (Col-0), Wassilewskija-4 (Ws-4), and Landsberg erecta-0 (Ler-0) are used as background lines for many public Arabidopsis mutant collections, and for investigation in laboratory conditions of plant processes, including photosynthesis and response to high-intensity light (HL). The photosystem II (PSII) complex is sensitive to HL and requires repair to sustain its function. PSII repair is a multistep process controlled by numerous factors, including protein phosphorylation and thylakoid membrane stacking. Here we have characterized the function and dynamics of PSII complex under growth-light and HL conditions. Ws-4 displayed 30% more thylakoid lipids per chlorophyll and 40% less chlorophyll per carotenoid than Col-0 and Ler-0. There were no large differences in thylakoid stacking, photoprotection and relative levels of photosynthetic complexes among the three accessions. An increased efficiency of PSII closure was found in Ws-4 following illumination with saturation flashes or continuous light. Phosphorylation of the PSII D1/D2 proteins was reduced by 50% in Ws-4 as compared to Col-0 and Ler-0. An increase in abundance of the responsible STN8 kinase in response to HL treatment was found in all three accessions, but Ws-4 displayed 50% lower levels than Col-0 and Ler-0. Despite this, the HL treatment caused in Ws-4 the lagest extent of PSII inactivation, disassembly, D1 protein degradation, and the largest decrease in the size of stacked thylakoids. The dilution of chlorophyll-protein complexes with additional lipids and carotenoids in Ws-4 may represent a mechanism to facilitate lateral protein traffic in the membrane, thus compensating for the lack of a full complement of STN8 kinase. Nevertheless, additional PSII damage occurs in Ws-4, which exceeds the D1 protein synthesis capacity, thus leading to enhanced photoinhibition. Our findings are valuable for selection of appropriate background line for PSII characterization in Arabidopsis mutants, and also provide the first insights into natural variation of PSII protein phosphorylation.
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Affiliation(s)
- Lan Yin
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Rikard Fristedt
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Andrei Herdean
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Katalin Solymosi
- Department of Plant Anatomy, Eötvös University, Budapest, Hungary
| | - Martine Bertrand
- National Institute for Marine Sciences and Techniques, Cnam, Cherbourg-Octeville, France
| | - Mats X. Andersson
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Fikret Mamedov
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Alexander V. Vener
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Benoît Schoefs
- Mer Molécules Santé, EA2160, LUNAM Université, Université du Maine à Le Mans, Le Mans, France
| | - Cornelia Spetea
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- * E-mail:
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Abstract
The period of four oscillation of the S state intermediates of the water oxidizing complex in Photosystem II (PSII) is commonly analyzed by the Kok parameters. The important miss factor determines the efficiency for each S transition. Commonly, an equal miss factor has been used in the analysis. We have used EPR signals which probe all S states in the same sample during S cycle advancement. This allows, for the first time, to measure directly the miss parameter for each S state transition. Experiments were performed in PSII membrane preparations from spinach in the presence of electron acceptor at 1 °C and 20 °C. The data show that the miss parameter is different in different transitions and shows different temperature dependence. We found no misses at 1 °C and 10% misses at 20 °C during the S(1)→S(2) transition. The highest miss factor was found in the S(2)→S(3) transition which decreased from 23% to 16% with increasing temperature. For the S(3)→S(0) transition the miss parameter was found to be 7% at 1 °C and decreased to 3% at 20 °C. For the S(0)→S(1) transition the miss parameter was found to be approximately 10% at both temperatures. The contribution from the acceptor side in the form of recombination reactions as well as from the donor side of PSII to the uneven misses is discussed. It is suggested that the different transition efficiency in each S transition partly reflects the chemistry at the CaMn(4)O(5) cluster. That consequently contributes to the uneven misses during S cycle turnover in PSII.
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Affiliation(s)
- Guangye Han
- Photochemistry and Molecular Science, the Department of Chemistry-Ångström, Box 523, Uppsala University, 751 20 Uppsala, Sweden
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Chen G, Han G, Göransson E, Mamedov F, Styring S. Stability of the S3 and S2 State Intermediates in Photosystem II Directly Probed by EPR Spectroscopy. Biochemistry 2011; 51:138-48. [PMID: 22112168 DOI: 10.1021/bi200627j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guiying Chen
- Molecular
Biomimetics, Department of Photochemistry
and Molecular Science, Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Guangye Han
- Molecular
Biomimetics, Department of Photochemistry
and Molecular Science, Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Erik Göransson
- Molecular
Biomimetics, Department of Photochemistry
and Molecular Science, Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Fikret Mamedov
- Molecular
Biomimetics, Department of Photochemistry
and Molecular Science, Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- Molecular
Biomimetics, Department of Photochemistry
and Molecular Science, Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
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45
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Arnold R, Augier C, Baker J, Barabash AS, Basharina-Freshville A, Blondel S, Bongrand M, Broudin-Bay G, Brudanin V, Caffrey AJ, Chapon A, Chauveau E, Durand D, Egorov V, Flack R, Garrido X, Grozier J, Guillon B, Hubert P, Hugon C, Jackson CM, Jullian S, Kauer M, Klimenko A, Kochetov O, Konovalov SI, Kovalenko V, Lalanne D, Lamhamdi T, Lang K, Liptak Z, Lutter G, Mamedov F, Marquet C, Martin-Albo J, Mauger F, Mott J, Nachab A, Nemchenok I, Nguyen CH, Nova F, Novella P, Ohsumi H, Pahlka RB, Perrot F, Piquemal F, Reyss JL, Richards B, Ricol JS, Saakyan R, Sarazin X, Simard L, Simkovic F, Shitov Y, Smolnikov A, Söldner-Rembold S, Stekl I, Suhonen J, Sutton CS, Szklarz G, Thomas J, Timkin V, Torre S, Tretyak VI, Umatov V, Vála L, Vanyushin I, Vasiliev V, Vorobel V, Vylov T, Zukauskas A. Measurement of the ββ decay half-life of 130Te with the NEMO-3 detector. Phys Rev Lett 2011; 107:062504. [PMID: 21902318 DOI: 10.1103/physrevlett.107.062504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Indexed: 05/31/2023]
Abstract
We report results from the NEMO-3 experiment based on an exposure of 1275 days with 661 g of (130)Te in the form of enriched and natural tellurium foils. The ββ decay rate of (130)Te is found to be greater than zero with a significance of 7.7 standard deviations and the half-life is measured to be T(½)(2ν) = [7.0 ± 0.9(stat) ± 1.1(syst)] × 10(20) yr. This represents the most precise measurement of this half-life yet published and the first real-time observation of this decay.
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Affiliation(s)
- R Arnold
- IPHC-DRS, Université Louis Pasteur, CNRS, Strasbourg, France
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Grasse N, Mamedov F, Becker K, Styring S, Rögner M, Nowaczyk MM. Role of novel dimeric Photosystem II (PSII)-Psb27 protein complex in PSII repair. J Biol Chem 2011; 286:29548-55. [PMID: 21737447 DOI: 10.1074/jbc.m111.238394] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The multisubunit membrane protein complex Photosystem II (PSII) catalyzes one of the key reactions in photosynthesis: the light-driven oxidation of water. Here, we focus on the role of the Psb27 assembly factor, which is involved in biogenesis and repair after light-induced damage of the complex. We show that Psb27 is essential for the survival of cyanobacterial cells grown under stress conditions. The combination of cold stress (30 °C) and high light stress (1000 μmol of photons × m(-2) × s(-1)) led to complete inhibition of growth in a Δpsb27 mutant strain of the thermophilic cyanobacterium Thermosynechococcus elongatus, whereas wild-type cells continued to grow. Moreover, Psb27-containing PSII complexes became the predominant PSII species in preparations from wild-type cells grown under cold stress. Two different PSII-Psb27 complexes were isolated and characterized in this study. The first complex represents the known monomeric PSII-Psb27 species, which is involved in the assembly of PSII. Additionally, a novel dimeric PSII-Psb27 complex could be allocated in the repair cycle, i.e. in processes after inactivation of PSII, by (15)N pulse-label experiments followed by mass spectrometry analysis. Comparison with the corresponding PSII species from Δpsb27 mutant cells showed that Psb27 prevented the release of manganese from the previously inactivated complex. These results indicate a more complex role of the Psb27 protein within the life cycle of PSII, especially under stress conditions.
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Affiliation(s)
- Nicole Grasse
- Plant Biochemistry, Faculty of Biology and Biotechnology, Ruhr-Universität Bochum, Bochum, Germany
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47
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Styring S, Sjöholm J, Mamedov F. Two tyrosines that changed the world: Interfacing the oxidizing power of photochemistry to water splitting in photosystem II. Biochim Biophys Acta 2011; 1817:76-87. [PMID: 21557928 DOI: 10.1016/j.bbabio.2011.03.016] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 03/10/2011] [Accepted: 03/29/2011] [Indexed: 11/16/2022]
Abstract
Photosystem II (PSII), the thylakoid membrane enzyme which uses sunlight to oxidize water to molecular oxygen, holds many organic and inorganic redox cofactors participating in the electron transfer reactions. Among them, two tyrosine residues, Tyr-Z and Tyr-D are found on the oxidizing side of PSII. Both tyrosines demonstrate similar spectroscopic features while their kinetic characteristics are quite different. Tyr-Z, which is bound to the D1 core protein, acts as an intermediate in electron transfer between the primary donor, P(680) and the CaMn₄ cluster. In contrast, Tyr-D, which is bound to the D2 core protein, does not participate in linear electron transfer in PSII and stays fully oxidized during PSII function. The phenolic oxygens on both tyrosines form well-defined hydrogen bonds to nearby histidine residues, His(Z) and His(D) respectively. These hydrogen bonds allow swift and almost activation less movement of the proton between respective tyrosine and histidine. This proton movement is critical and the phenolic proton from the tyrosine is thought to toggle between the tyrosine and the histidine in the hydrogen bond. It is found towards the tyrosine when this is reduced and towards the histidine when the tyrosine is oxidized. The proton movement occurs at both room temperature and ultra low temperature and is sensitive to the pH. Essentially it has been found that when the pH is below the pK(a) for respective histidine the function of the tyrosine is slowed down or, at ultra low temperature, halted. This has important consequences for the function also of the CaMn₄ complex and the protonation reactions as the critical Tyr-His hydrogen bond also steer a multitude of reactions at the CaMn₄ cluster. This review deals with the discovery and functional assignments of the two tyrosines. The pH dependent phenomena involved in oxidation and reduction of respective tyrosine is covered in detail. This article is part of a Special Issue entitled: Photosystem II.
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Affiliation(s)
- Stenbjörn Styring
- Molecular Biomimetics, Department for Photochemistry and Molecular Science, Angström Laboratory, Uppsala University, Sweden.
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48
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Chen G, Allahverdiyeva Y, Aro EM, Styring S, Mamedov F. Electron paramagnetic resonance study of the electron transfer reactions in photosystem II membrane preparations from Arabidopsis thaliana. Biochimica et Biophysica Acta (BBA) - Bioenergetics 2011; 1807:205-15. [DOI: 10.1016/j.bbabio.2010.10.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2010] [Revised: 10/06/2010] [Accepted: 10/08/2010] [Indexed: 10/18/2022]
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49
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García-Cerdán JG, Kovács L, Tóth T, Kereïche S, Aseeva E, Boekema EJ, Mamedov F, Funk C, Schröder WP. The PsbW protein stabilizes the supramolecular organization of photosystem II in higher plants. Plant J 2011; 65:368-381. [PMID: 21265891 DOI: 10.1111/j.1365-313x.2010.04429.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
PsbW, a 6.1-kDa low-molecular-weight protein, is exclusive to photosynthetic eukaryotes, and associates with the photosystem II (PSII) protein complex. In vivo and in vitro comparison of Arabidopsis thaliana wild-type plants with T-DNA insertion knock-out mutants completely lacking the PsbW protein, or with antisense inhibition plants exhibiting decreased levels of PsbW, demonstrated that the loss of PsbW destabilizes the supramolecular organization of PSII. No PSII-LHCII supercomplexes could be detected or isolated in the absence of the PsbW protein. These changes in macro-organization were accompanied by a minor decrease in the chlorophyll fluorescence parameter F(V) /F(M) , a strongly decreased PSII core protein phosphorylation and a modification of the redox state of the plastoquinone (PQ) pool in dark-adapted leaves. In addition, the absence of PsbW protein led to faster redox changes in the PQ pool, i.e. transitions from state 1 to state 2, as measured by changes in stationary fluorescence (F(S) ) kinetics, compared with the wild type. Despite these dramatic effects on macromolecular structure, the transgenic plants exhibited no significant phenotype under normal growth conditions. We suggest that the PsbW protein is located close to the minor antenna of the PSII complex, and is important for the contact and stability between several PSII-LHCII supercomplexes.
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Affiliation(s)
- José G García-Cerdán
- Department of Chemistry, Umeå Plant Science Centre (UPSC), Umeå University, SE-901 87 Umeå, Sweden
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50
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Sjöholm J, Havelius KGV, Mamedov F, Styring S. Effects of pH on the S3 State of the Oxygen Evolving Complex in Photosystem II Probed by EPR Split Signal Induction. Biochemistry 2010; 49:9800-8. [DOI: 10.1021/bi101364t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Johannes Sjöholm
- Molecular Biomimetics, Department of Photochemistry and Molecular Science, Ångström Laboratory, Uppsala University, P.O. Box 523, SE-751 20 Uppsala, Sweden
| | - Kajsa G. V. Havelius
- Molecular Biomimetics, Department of Photochemistry and Molecular Science, Ångström Laboratory, Uppsala University, P.O. Box 523, SE-751 20 Uppsala, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Photochemistry and Molecular Science, Ångström Laboratory, Uppsala University, P.O. Box 523, SE-751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- Molecular Biomimetics, Department of Photochemistry and Molecular Science, Ångström Laboratory, Uppsala University, P.O. Box 523, SE-751 20 Uppsala, Sweden
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