ArticlePlant physiology2016
Chlamydomonas reinhardtii PsbS Protein Is Functional and Accumulates Rapidly and Transiently under High Light.
Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.
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Who cites it
60 citing papers in PubMed, 123 citations in OpenAlex.
- A Natural qE- and qZ-Deficient Alga Retains Functional Plant-Like and Chlorophycean Violaxanthin De-Epoxidases.bioRxiv : the preprint server for biology · 2026Article
- Roles of LHCSR3 and STT7 in the remodeling of thylakoid supercomplexes in Chlamydomonas reinhardtii under UV-B treatment.The New phytologist · 2026Article
- Desiccation tolerance mechanisms in the green lineage and beyond.The New phytologist · 2026Review
- Estimation of chloroplast macromolecular complex copy numbers and subunit stoichiometries during the Chlamydomonas reinhardtii cell cycle.The Plant journal : for cell and molecular biology · 2026Article
- Sensitivity of Photosystem II to Photoinhibition inInternational journal of molecular sciences · 2026Article
- Functional divergence of LhcSR and PsbS in zeaxanthin-mediated non-photochemical quenching.The New phytologist · 2026Article
- Rice MGD1-Mediated Improvement of Photosynthesis and Crop Yield by Flexible Adaptation to Different Light Conditions.Plant biotechnology journal · 2026Article
- Mechanisms of light harvesting complex proteins in photoprotection of the brown tide alga.Nature communications · 2025Article
- Additive Effects of Multiple Photoprotective Mechanisms Drive Efficient Photosynthesis Under Variable Light Conditions.Plant, cell & environment · 2025Article
- Photophysiological and transcriptomic response to the broad-spectrum herbicides atrazine and glyphosate in a photosynthetic picoeukaryote.Microbial genomics · 2025Article
- Photoreceptor-induced LHL4 protects the photosystem II monomer inProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Photosynthesis: Genetic Strategies Adopted to Gain Higher Efficiency.International journal of molecular sciences · 2024Review
- Singlet-Oxygen-Mediated Regulation of Photosynthesis-Specific Genes: A Role for Reactive Electrophiles in Signal Transduction.International journal of molecular sciences · 2024Article
- Regulation of Microalgal Photosynthetic Electron Transfer.Plants (Basel, Switzerland) · 2024Review
- The role of reactive oxygen species in plant-virus interactions.Plant cell reports · 2024Review
- Article
- Transcriptomic insights into the dominance of two phototrophs throughout the water column of a tropical hypersaline-alkaline crater lake (Dziani Dzaha, Mayotte).Frontiers in microbiology · 2024Article
- Phosphate Limitation Responses in Marine Green Algae Are Linked to Reprogramming of the tRNA Epitranscriptome and Codon Usage Bias.Molecular biology and evolution · 2023Article
- Proteomic characterization of a lutein-hyperaccumulating Chlamydomonas reinhardtii mutant reveals photoprotection-related factors as targets for increasing cellular carotenoid content.Biotechnology for biofuels and bioproducts · 2023Article
- The Photoprotective Protein PsbS from Green MicroalgaInternational journal of molecular sciences · 2023Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photosynthetic organisms must respond to excess light in order to avoid photo-oxidative stress. In plants and green algae the fastest response to high light is non-photochemical quenching (NPQ), a process that allows the safe dissipation of the excess energy as heat. This phenomenon is triggered by the low luminal pH generated by photosynthetic electron transport. In vascular plants the main sensor of the low pH is the PsbS protein, while in the green alga Chlamydomonas reinhardtii LhcSR proteins appear to be exclusively responsible for this role. Interestingly, Chlamydomonas also possesses two PsbS genes, but so far the PsbS protein has not been detected and its biological function is unknown. Here, we reinvestigated the kinetics of gene expression and PsbS and LhcSR3 accumulation in Chlamydomonas during high light stress. We found that, unlike LhcSR3, PsbS accumulates very rapidly but only transiently. In order to determine the role of PsbS in NPQ and photoprotection in Chlamydomonas, we generated transplastomic strains expressing the algal or the Arabidopsis psbS gene optimized for plastid expression. Both PsbS proteins showed the ability to increase NPQ in Chlamydomonas wild-type and npq4 (lacking LhcSR3) backgrounds, but no clear photoprotection activity was observed. Quantification of PsbS and LhcSR3 in vivo indicates that PsbS is much less abundant than LhcSR3 during high light stress. Moreover, LhcSR3, unlike PsbS, also accumulates during other stress conditions. The possible role of PsbS in photoprotection is discussed.
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