ArticleNature plants2020
An atypical short-chain dehydrogenase-reductase functions in the relaxation of photoprotective qH in Arabidopsis.
Article in Nature plants, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 45 citations in OpenAlex.
- Impact of alternative splicing on Arabidopsis proteome.Nucleic acids research · 2026Article
- Dissecting the contributions to non-photochemical quenching in a land plant under fluctuating light.Nature communications · 2026Article
- Lipocalin-mediated hydrophobic mismatch as a mechanism for sustained nonphotochemical quenching.Plant physiology · 2026Article
- Mechanisms underpinning natural variation in non-photochemical quenching kinetics.Biochemical Society transactions · 2025Review
- Impact of alternative splicing on Arabidopsis proteome.bioRxiv : the preprint server for biology · 2025Article
- Nitric Oxide and Melatonin Cross Talk on Photosynthetic Machinery.Molecules (Basel, Switzerland) · 2025Review
- The thylakoid lumen Deg1 protease affects non-photochemical quenching via the levels of violaxanthin de-epoxidase and PsbS.The Plant journal : for cell and molecular biology · 2025Article
- Strategies for adaptation to high light in plants.aBIOTECH · 2024Review
- Photosynthesis: Genetic Strategies Adopted to Gain Higher Efficiency.International journal of molecular sciences · 2024Review
- CRISPR interference screens reveal growth-robustness tradeoffs in Synechocystis sp. PCC 6803 across growth conditions.The Plant cell · 2023Article
- STN7 is not essential for developmental acclimation of Arabidopsis to light intensity.The Plant journal : for cell and molecular biology · 2023Article
- Structure of Arabidopsis SOQ1 lumenal region unveils C-terminal domain essential for negative regulation of photoprotective qH.Nature plants · 2022Article
- Here comes the sun: How optimization of photosynthetic light reactions can boost crop yields.Journal of integrative plant biology · 2022Review
- Non-Photochemical Quenching: From Light Perception to Photoprotective Gene Expression.International journal of molecular sciences · 2022Review
- SDR7-6, a short-chain alcohol dehydrogenase/reductase family protein, regulates light-dependent cell death and defence responses in rice.Molecular plant pathology · 2022Article
- Current Knowledge on Mechanisms Preventing Photosynthesis Redox Imbalance in Plants.Antioxidants (Basel, Switzerland) · 2021Review
- Modulation of Phototropin Signalosome with Artificial Illumination Holds Great Potential in the Development of Climate-Smart Crops.Current genomics · 2021Review
- Comparative proteomics of thylakoids fromPlant direct · 2021Article
- Role of Thylakoid Protein Phosphorylation in Energy-Dependent Quenching of Chlorophyll Fluorescence in Rice Plants.International journal of molecular sciences · 2021Article
- Dynamic Changes in Protein-Membrane Association for Regulating Photosynthetic Electron Transport.Cells · 2021Review
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Authors and funding
6 authors at 3 institutions in 3 countries.
Funding
Abstract
Photosynthetic organisms experience wide fluctuations in light intensity and regulate light harvesting accordingly to prevent damage from excess energy. The antenna quenching component qH is a sustained form of energy dissipation that protects the photosynthetic apparatus under stress conditions. This photoprotective mechanism requires the plastid lipocalin LCNP and is prevented by SUPPRESSOR OF QUENCHING1 (SOQ1) under non-stress conditions. However, the molecular mechanism of qH relaxation has yet to be resolved. Here, we isolated and characterized RELAXATION OF QH1 (ROQH1), an atypical short-chain dehydrogenase-reductase that functions as a qH-relaxation factor in Arabidopsis. The ROQH1 gene belongs to the GreenCut2 inventory specific to photosynthetic organisms, and the ROQH1 protein localizes to the chloroplast stroma lamellae membrane. After a cold and high-light treatment, qH does not relax in roqh1 mutants and qH does not occur in leaves overexpressing ROQH1. When the soq1 and roqh1 mutations are combined, qH can neither be prevented nor relaxed and soq1 roqh1 displays constitutive qH and light-limited growth. We propose that LCNP and ROQH1 perform dosage-dependent, antagonistic functions to protect the photosynthetic apparatus and maintain light-harvesting efficiency in plants.
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