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Niu Y, Matsubara S, Nedbal L, Lazár D. Dynamics and interplay of photosynthetic regulatory processes depend on the amplitudes of oscillating light. PLANT, CELL & ENVIRONMENT 2024; 47:2240-2257. [PMID: 38482712 DOI: 10.1111/pce.14879] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/28/2024] [Indexed: 04/30/2024]
Abstract
Plants have evolved multiple regulatory mechanisms to cope with natural light fluctuations. The interplay between these mechanisms leads presumably to the resilience of plants in diverse light patterns. We investigated the energy-dependent nonphotochemical quenching (qE) and cyclic electron transports (CET) in light that oscillated with a 60-s period with three different amplitudes. The photosystem I (PSI) and photosystem II (PSII) function-related quantum yields and redox changes of plastocyanin and ferredoxin were measured in Arabidopsis thaliana wild types and mutants with partial defects in qE or CET. The decrease in quantum yield of qE due to the lack of either PsbS- or violaxanthin de-epoxidase was compensated by an increase in the quantum yield of the constitutive nonphotochemical quenching. The mutant lacking NAD(P)H dehydrogenase (NDH)-like-dependent CET had a transient significant PSI acceptor side limitation during the light rising phase under high amplitude of light oscillations. The mutant lacking PGR5/PGRL1-CET restricted electron flows and failed to induce effective photosynthesis control, regardless of oscillation amplitudes. This suggests that PGR5/PGRL1-CET is important for the regulation of PSI function in various amplitudes of light oscillation, while NDH-like-CET acts' as a safety valve under fluctuating light with high amplitude. The results also bespeak interplays among multiple photosynthetic regulatory mechanisms.
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Affiliation(s)
- Yuxi Niu
- Institute of Bio- and Geosciences/Plant Sciences, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich, Germany
| | - Shizue Matsubara
- Institute of Bio- and Geosciences/Plant Sciences, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich, Germany
| | - Ladislav Nedbal
- Institute of Bio- and Geosciences/Plant Sciences, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich, Germany
- Department of Biophysics, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Dušan Lazár
- Department of Biophysics, Faculty of Science, Palacký University, Olomouc, Czech Republic
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Böde K, Javornik U, Dlouhý O, Zsíros O, Biswas A, Domonkos I, Šket P, Karlický V, Ughy B, Lambrev PH, Špunda V, Plavec J, Garab G. Role of isotropic lipid phase in the fusion of photosystem II membranes. PHOTOSYNTHESIS RESEARCH 2024:10.1007/s11120-024-01097-3. [PMID: 38662326 DOI: 10.1007/s11120-024-01097-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/18/2024] [Indexed: 04/26/2024]
Abstract
It has been thoroughly documented, by using 31P-NMR spectroscopy, that plant thylakoid membranes (TMs), in addition to the bilayer (or lamellar, L) phase, contain at least two isotropic (I) lipid phases and an inverted hexagonal (HII) phase. However, our knowledge concerning the structural and functional roles of the non-bilayer phases is still rudimentary. The objective of the present study is to elucidate the origin of I phases which have been hypothesized to arise, in part, from the fusion of TMs (Garab et al. 2022 Progr Lipid Res 101,163). We take advantage of the selectivity of wheat germ lipase (WGL) in eliminating the I phases of TMs (Dlouhý et al. 2022 Cells 11: 2681), and the tendency of the so-called BBY particles, stacked photosystem II (PSII) enriched membrane pairs of 300-500 nm in diameter, to form large laterally fused sheets (Dunahay et al. 1984 BBA 764: 179). Our 31P-NMR spectroscopy data show that BBY membranes contain L and I phases. Similar to TMs, WGL selectively eliminated the I phases, which at the same time exerted no effect on the molecular organization and functional activity of PSII membranes. As revealed by sucrose-density centrifugation, magnetic linear dichroism spectroscopy and scanning electron microscopy, WGL disassembled the large laterally fused sheets. These data provide direct experimental evidence on the involvement of I phase(s) in the fusion of stacked PSII membrane pairs, and strongly suggest the role of non-bilayer lipids in the self-assembly of the TM system.
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Affiliation(s)
- Kinga Böde
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
- Doctoral School of Biology, University of Szeged, Szeged, Hungary
- Department of Physics, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
| | - Uroš Javornik
- Slovenian NMR Center, National Institute of Chemistry, Ljubljana, Slovenia
| | - Ondřej Dlouhý
- Department of Physics, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
| | - Ottó Zsíros
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Avratanu Biswas
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
- Doctoral School of Biology, University of Szeged, Szeged, Hungary
| | - Ildikó Domonkos
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Primož Šket
- Slovenian NMR Center, National Institute of Chemistry, Ljubljana, Slovenia
| | - Václav Karlický
- Department of Physics, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
- Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic
| | - Bettina Ughy
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Petar H Lambrev
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Vladimír Špunda
- Department of Physics, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
- Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic
| | - Janez Plavec
- Slovenian NMR Center, National Institute of Chemistry, Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
- EN-FIST Center of Excellence, Ljubljana, Slovenia
| | - Győző Garab
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary.
- Department of Physics, Faculty of Science, University of Ostrava, Ostrava, Czech Republic.
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Plyusnina TY, Khruschev SS, Degtereva NS, Voronova EN, Volgusheva AA, Riznichenko GY, Rubin AB. Three-state mathematical model for the assessment of DCMU-treated photosystem II heterogeneity. PHOTOSYNTHESIS RESEARCH 2024; 159:303-320. [PMID: 38466456 DOI: 10.1007/s11120-024-01077-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 01/15/2024] [Indexed: 03/13/2024]
Abstract
Photosystem II (PSII) is one of the main pigment-protein complexes of photosynthesis which is highly sensitive to unfavorable environmental factors. The heterogeneity of PSII properties is essential for the resistance of autotrophic organisms to stress factors. Assessment of the PSII heterogeneity may be used in environmental monitoring for on-line detection of contamination of the environment. We propose an approach to assess PSII oxygen-evolving complex and light-harvesting antenna heterogeneity that is based on mathematical modeling of the shape of chlorophyll a fluorescence rise of 3-(3,4-dichlorophenyl)-1,1-dimethylurea-treated samples. The hierarchy of characteristic times of the processes considered in the model makes it possible to reduce the model to a system of three ordinary differential equations. The analytic solution of the reduced three-state model is expressed as a sum of two exponential functions, and it exactly reproduces the solution of the complete system within the time range from microseconds to hundreds of milliseconds. The combination of several such models for reaction centers with different properties made it possible to use it as an instrument to study PSII heterogeneity. PSII heterogeneity was studied for Chlamydomonas at different intensities of actinic light, for Scenedesmus under short-term heating, and for Chlorella grown in nitrate-enriched and nitrate-depleted media.
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Affiliation(s)
- Tatiana Yu Plyusnina
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia.
| | - Sergei S Khruschev
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Natalia S Degtereva
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Elena N Voronova
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Alena A Volgusheva
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Galina Yu Riznichenko
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Andrew B Rubin
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
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Wang T, Xu D, Zhang F, Yan T, Li Y, Wang Z, Xie Y, Zhuang W. Changes in Photosynthetic Characteristics between Green-Leaf Poplar Linn. "2025" and Its Bud-Sporting Colored-Leaf Cultivars. Int J Mol Sci 2024; 25:1225. [PMID: 38279223 PMCID: PMC10816277 DOI: 10.3390/ijms25021225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/28/2024] Open
Abstract
Colored-leaf poplar is increasingly popular due to its great ornamental values and application prospects. However, the photosynthetic characteristics of these colored-leaf cultivars have not been well understood. In this study, the photosynthetic differences between green-leaf poplar Populus deltoids Linn. "2025" (L2025) and colored-leaf cultivars 'Zhonghong poplar' (ZHP), 'Quanhong poplar' (QHP), and 'Caihong poplar' (CHP) were investigated on several levels, including chloroplast ultrastructure observation, photosynthetic physiological characteristics, and expression analysis of key genes. The results showed that the photosynthetic performance of ZHP was basically consistent with that of L2025, while the ranges of light energy absorption and efficiency of light energy utilization decreased to different degrees in CHP and QHP. A relatively low water use efficiency and high dark respiration rate were observed in QHP, suggesting a relatively weak environmental adaptability. The differences in chloroplast structure in different colored-leaf poplars were further observed by transmission electron microscopy. The disorganization of thylakoid in CHP was considered an important reason, resulting in a significant decrease in chlorophyll content compared with other poplar cultivars. Interestingly, CHP exhibited extremely high photosynthetic electron transport activity and photochemical efficiency, which were conductive to maintaining its relatively high photosynthetic performance. The actual quantum yield of PSII photochemistry of ZHP was basically the same as that of QHP, while the relatively high photosynthetic performance indexes in ZHP suggested a more optimized photosynthetic apparatus, which was crucial for the improvement of photosynthetic efficiency. The differential expressions of a series of key genes in different colored-leaf poplars provided a reasonable explanation for anthocyanin accumulation and specific photosynthetic processes.
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Affiliation(s)
- Tao Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (T.W.); (D.X.); (F.Z.); (T.Y.); (Y.L.); (Z.W.)
| | - Donghuan Xu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (T.W.); (D.X.); (F.Z.); (T.Y.); (Y.L.); (Z.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China;
| | - Fan Zhang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (T.W.); (D.X.); (F.Z.); (T.Y.); (Y.L.); (Z.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China;
| | - Tengyue Yan
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (T.W.); (D.X.); (F.Z.); (T.Y.); (Y.L.); (Z.W.)
| | - Yuhang Li
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (T.W.); (D.X.); (F.Z.); (T.Y.); (Y.L.); (Z.W.)
| | - Zhong Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (T.W.); (D.X.); (F.Z.); (T.Y.); (Y.L.); (Z.W.)
| | - Yinfeng Xie
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China;
| | - Weibing Zhuang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (T.W.); (D.X.); (F.Z.); (T.Y.); (Y.L.); (Z.W.)
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