ArticlePlant cell reports2019
Photoprotection and growth under different lights of Arabidopsis single and double mutants for energy dissipation (npq4) and state transitions (pph1).
Article in Plant cell reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Light Regulation Under Equivalent Cumulative Light Integral: Impacts on Growth, Quality, and Energy Efficiency of Lettuce (Plants (Basel, Switzerland) · 2025Article
- Plastocyanin affects photosynthesis and high light acclimation by modulating redox states of electron transport chain in Chlamydomonas reinhardtii.Communications biology · 2025Article
- De-etiolation is Almost Color Blind: The Study of Photosynthesis Awakening under Blue and Red Light.Plant & cell physiology · 2024Article
- Growth, phytochemical, and phytohormonal responses of basil to different light durations and intensities under constant daily light integral.BMC plant biology · 2024Article
- How much heat does non-photochemical quenching produce?Frontiers in plant science · 2024Article
- The effects of different daily irradiance profiles on Arabidopsis growth, with special attention to the role of PsbS.Frontiers in plant science · 2023Article
- Responses of photosystem to long-term light stress in a typically shade-tolerant speciesFrontiers in plant science · 2022Article
- Higher order photoprotection mutants reveal the importance of ΔpH-dependent photosynthesis-control in preventing light induced damage to both photosystem II and photosystem I.Scientific reports · 2020Article
- The Kinase STATE TRANSITION 8 Phosphorylates Light Harvesting Complex II and Contributes to Light Acclimation inFrontiers in plant science · 2019Article
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Authors and funding
3 authors.
Funding
Abstract
key messageArabidopsis single and double mutants for energy dissipation (npq4) and state transitions (pph1, blocked in State II) show enhanced growth and flowers + siliques production under controlled low-light conditions. Non-photochemical quenching (NPQ) is a short-term regulation important to maintain efficient photosynthesis and to avoid photooxidative damages by dissipation of excess energy. Full activation of NPQ in plants requires the protonation of the PsbS protein, which is the sensor of the low lumenal pH triggering the thermal dissipation. State transitions are a second important photosynthetic regulation to respond to changes in light quality and unbalanced excitation of photosystems. State transitions allow energy redistribution between PSI and PSII through the reversible exchange of LHCII antenna complexes between photosystems thanks to the opposite action of the STN7 kinase and PPH1 phosphatase: phosphorylation of LHCII promotes its mobilization from PSII to PSI, while dephosphorylation has the opposite effect. In this work, we produced the pph1/npq4 double mutant and characterized some photosynthetic, growth and reproduction properties in comparison with wild-type and single-mutant plants in high- and low-light conditions. Results indicate that in high light, the pph1 mutant maintains good photoprotection ability, while npq4 plants show more susceptibility to photodamages. The pph1/npq4 double mutant showed a resistance to high-light stress similar to that of the single npq4 mutant. In low-light condition, the single mutants showed a significant increase of growth and flowering compared to wild-type plants and this effect was further enhanced in the pph1/npq4 double mutant. Results suggest that photosynthetic optimisation to improve crop growth and productivity might be possible, at least under controlled low-light conditions, by modifying NPQ and regulation of state transitions.
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