ArticlePhotosynthesis research2019
Structure and function of photosystem I in Cyanidioschyzon merolae.
Article in Photosynthesis research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.
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52 citing papers in PubMed, 92 citations in OpenAlex.
- Structural proteomics reveals the functional docking interface of ferredoxin-NADPThe Plant journal : for cell and molecular biology · 2026Article
- Structure of giant kelp Photosystem I-FCP uncovers drivers of antenna evolution across the red lineage.Nature communications · 2026Article
- Insights into the phylogenetic, structural and functional evolution ofPlant diversity · 2026Article
- Cryo-EM structure of Chlamydomonas reinhardtii Photosystem I complexed with cytochrome cNature communications · 2026Article
- Structural study of monomeric and dimeric photosystem I-LHCI supercomplexes from a bryophyte.Communications biology · 2026Article
- Structure of Photosystem I-FCP from giant kelp uncovers drivers of antenna evolution across the red lineage.bioRxiv : the preprint server for biology · 2025Article
- Comparative analysis of biochemical and sequence features of PSI-LHCI supercomplexes from Cyanidium caldarium NIES-551 and Cyanidiococcus yangmingshanensis NIES-2137.Photosynthesis research · 2025Article
- Transcriptomics Reveals an Energy-Saving Metabolic Switch in an Extremophilic Red MicroalgaInternational journal of molecular sciences · 2025Article
- Structure of a photosystem I supercomplex fromScience advances · 2025Article
- Biochemical evidence for the diversity of LHCI proteins in PSI-LHCI from the red alga Galdieria sulphuraria NIES-3638.Photosynthesis research · 2025Article
- Article
- Unraveling the evolutionary trajectory of LHCI in red-lineage algae: Conservation, diversification, and neolocalization.iScience · 2024Article
- The structural basis for light harvesting in organisms producing phycobiliproteins.The Plant cell · 2024Review
- Regulation of Microalgal Photosynthetic Electron Transfer.Plants (Basel, Switzerland) · 2024Review
- Investigating the Balance between Structural Conservation and Functional Flexibility in Photosystem I.International journal of molecular sciences · 2024Review
- The structure of PSI-LHCI fromProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Structures and organizations of PSI-AcpPCI supercomplexes from red tidal and coral symbiotic photosynthetic dinoflagellates.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Overexpression of SlPRE3 alters the plant morphologies in Solanum lycopersicum.Plant cell reports · 2023Article
- Time-resolved FTIR difference spectroscopy for the study of photosystem I with high potential naphthoquinones incorporated into the APhotosynthesis research · 2023Article
- Structural basis and evolution of the photosystem I-light-harvesting supercomplex of cryptophyte algae.The Plant cell · 2023Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The evolution of photosynthesis from primitive photosynthetic bacteria to higher plants has been driven by the need to adapt to a wide range of environmental conditions. The red alga Cyanidioschyzon merolae is a primitive organism, which is capable of performing photosynthesis in extreme acidic and hot environments. The study of its photosynthetic machinery may provide new insight on the evolutionary path of photosynthesis and on light harvesting and its regulation in eukaryotes. With that aim, the structural and functional properties of the PSI complex were investigated by biochemical characterization, mass spectrometry, and X-ray crystallography. PSI was purified from cells grown at 25 and 42 °C, crystallized and its crystal structure was solved at 4 Å resolution. The structure of C. merolae reveals a core complex with a crescent-shaped structure, formed by antenna proteins. In addition, the structural model shows the position of PsaO and PsaM. PsaG and PsaH are present in plant complex and are missing from the C. merolae model as expected. This paper sheds new light onto the evolution of photosynthesis, which gives a strong indication for the chimerical properties of red algae PSI. The subunit composition of the PSI core from C. merolae and its associated light-harvesting antennae suggests that it is an evolutionary and functional intermediate between cyanobacteria and plants.
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