ArticleNature2009
An ancient light-harvesting protein is critical for the regulation of algal photosynthesis.
Article in Nature, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 313 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
313 citing papers in PubMed, 696 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
- 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
- Roles of LHCSR3 and STT7 in the remodeling of thylakoid supercomplexes in Chlamydomonas reinhardtii under UV-B treatment.The New phytologist · 2026Article
- Light-dependent processes in algae across scales: from cellular physiology to ecological organization.Plant physiology · 2026Review
- Evaluating the Combined Effects of Elevated [COPlant, cell & environment · 2026Article
- LHCSR1 Functions as a Dimmer Switch for Light Harvesting.The journal of physical chemistry letters · 2026Article
- Siphonous green macroalgae with contrasting capacities for the energy-dependent quenching, qE, rely on different photoprotective mechanisms.Photosynthesis research · 2026Article
- The amino terminus of PetD is essential for cytochrome bNature plants · 2026Article
- Functional divergence of LhcSR and PsbS in zeaxanthin-mediated non-photochemical quenching.The New phytologist · 2026Article
- Interplay between high-energy quenching and state transitions in Chlamydomonas reinhardtii: a single-cell approach.The New phytologist · 2026Article
- Insights into the phylogenetic, structural and functional evolution ofPlant diversity · 2026Article
- Members of the lichen photobiont genus Trebouxia show species-specific photophysiological and transcriptome-level responses to high light.Journal of experimental botany · 2026Article
- Cryo-EM structure of photosystem II supercomplex from a green microalga with extreme phototolerance.Nature communications · 2026Article
- Acclimation to high and low diurnal light is flexible inProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Hidden diversity: Transcriptomic and photosynthetic variation among common 'wild type' Chlamydomonas strains.The Plant journal : for cell and molecular biology · 2025Article
- Additive Effects of Multiple Photoprotective Mechanisms Drive Efficient Photosynthesis Under Variable Light Conditions.Plant, cell & environment · 2025Article
- The xanthophyll cycle balances photoprotection and photosynthetic efficiency in the seawater alga Nannochloropsis oceanica.Plant physiology · 2025Article
- Abscisic acid enhances non-photochemical quenching through SnRK2 and ABI3 in Physcomitrium patens.Journal of plant research · 2025Article
- Too dim, too bright, and just right: Systems analysis of the Chlamydomonas diurnal program under limiting and excess light.The Plant cell · 2025Article
253 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Light is necessary for photosynthesis, but its absorption by pigment molecules such as chlorophyll can cause severe oxidative damage and result in cell death. The excess absorption of light energy by photosynthetic pigments has led to the evolution of protective mechanisms that operate on the timescale of seconds to minutes and involve feedback-regulated de-excitation of chlorophyll molecules in photosystem II (qE). Despite the significant contribution of eukaryotic algae to global primary production, little is known about their qE mechanism, in contrast to that in flowering plants. Here we show that a qE-deficient mutant of the unicellular green alga Chlamydomonas reinhardtii, npq4, lacks two of the three genes encoding LHCSR (formerly called LI818). This protein is an ancient member of the light-harvesting complex superfamily, and orthologues are found throughout photosynthetic eukaryote taxa, except in red algae and vascular plants. The qE capacity of Chlamydomonas is dependent on environmental conditions and is inducible by growth under high light conditions. We show that the fitness of the npq4 mutant in a shifting light environment is reduced compared to wild-type cells, demonstrating that LHCSR is required for survival in a dynamic light environment. Thus, these data indicate that plants and algae use different proteins to dissipate harmful excess light energy and protect the photosynthetic apparatus from damage.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.