ArticleProceedings of the National Academy of Sciences of the United States of America2019
Structural and functional analyses of photosystem II in the marine diatom
Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 44 citations in OpenAlex.
- Biological Breakthroughs and Drug Discovery Revolution via Cryo-Electron Microscopy of Membrane Proteins.Membranes · 2025Review
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- Coupling of excitation energy to photochemistry in natural marine phytoplankton communities under iron stress.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Lighting the way: Compelling open questions in photosynthesis research.The Plant cell · 2024Article
- Conspicuous chloroplast with light harvesting-photosystem I/II megacomplex in marine Prorocentrum cordatum.Plant physiology · 2024Article
- Understanding the Impact of Nitrogen Availability: A Limiting Factor for Enhancing Fucoxanthin Productivity in Microalgae Cultivation.Marine drugs · 2024Article
- Structure of a diatom photosystem II supercomplex containing a member of Lhcx family and dimeric FCPII.Science advances · 2023Article
- ROS-Induced Mitochondrial Dysfunction in CD4 T Cells from ART-Controlled People Living with HIV.Viruses · 2023Article
- Structure ofeLife · 2023Article
- Native architecture and acclimation of photosynthetic membranes in a fast-growing cyanobacterium.Plant physiology · 2022Article
- The redox state of the plastoquinone (PQ) pool is connected to thylakoid lipid saturation in a marine diatom.Photosynthesis research · 2022Article
- A kaleidoscope of photosynthetic antenna proteins and their emerging roles.Plant physiology · 2022Article
- Investigating the Morphology and Mechanics of Biogenic Hierarchical Materials at and below Micrometer Scale.Nanomaterials (Basel, Switzerland) · 2022Article
- Light quality, oxygenic photosynthesis and more.Photosynthetica · 2022Review
- Article
- Integrating on-grid immunogold labeling and cryo-electron tomography to reveal photosystem II structure and spatial distribution in thylakoid membranes.Journal of structural biology · 2021Article
- Cryo-electron microscopy of cholinesterases, present and future.Journal of neurochemistry · 2021Review
- Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana.Plant physiology · 2021Article
- Regulation of Phaeodactylum plastid gene transcription by redox, light, and circadian signals.Photosynthesis research · 2021Article
- Cryo-Electron Tomography of Candida glabrata Plasma Membrane Proteins.Journal of fungi (Basel, Switzerland) · 2021Article
Corrections and comments
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Authors and funding
11 authors at 2 institutions in 2 countries.
Funding
Abstract
A descendant of the red algal lineage, diatoms are unicellular eukaryotic algae characterized by thylakoid membranes that lack the spatial differentiation of stroma and grana stacks found in green algae and higher plants. While the photophysiology of diatoms has been studied extensively, very little is known about the spatial organization of the multimeric photosynthetic protein complexes within their thylakoid membranes. Here, using cryo-electron tomography, proteomics, and biophysical analyses, we elucidate the macromolecular composition, architecture, and spatial distribution of photosystem II complexes in diatom thylakoid membranes. Structural analyses reveal 2 distinct photosystem II populations: loose clusters of complexes associated with antenna proteins and compact 2D crystalline arrays of dimeric cores. Biophysical measurements reveal only 1 photosystem II functional absorption cross section, suggesting that only the former population is photosynthetically active. The tomographic data indicate that the arrays of photosystem II cores are physically separated from those associated with antenna proteins. We hypothesize that the islands of photosystem cores are repair stations, where photodamaged proteins can be replaced. Our results strongly imply convergent evolution between the red and the green photosynthetic lineages toward spatial segregation of dynamic, functional microdomains of photosystem II supercomplexes.
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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.