ArticleProceedings of the National Academy of Sciences of the United States of America2014
Mobile hydrogen carbonate acts as proton acceptor in photosynthetic water oxidation.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 64 citations in OpenAlex.
- Interrelated Roles of Chloride and Bicarbonate in Regulating Electron Transport Across Photosystem II inPlants (Basel, Switzerland) · 2026Article
- BiVOACS applied energy materials · 2025Article
- Bicarbonate is a key regulator but not a substrate for OPhotosynthesis research · 2024Review
- Zinc regulation of chlorophyll fluorescence and carbohydrate metabolism in saline-sodic stressed rice seedlings.BMC plant biology · 2024Article
- Water Metabolism ofPlants (Basel, Switzerland) · 2023Article
- Solar energy conversion by photosystem II: principles and structures.Photosynthesis research · 2023Review
- Allophycocyanin A is a carbon dioxide receptor in the cyanobacterial phycobilisome.Nature communications · 2022Article
- Water oxidation by photosystem II is the primary source of electrons for sustained HProceedings of the National Academy of Sciences of the United States of America · 2020Article
- The Role of Carbonate in Catalytic Oxidations.Accounts of chemical research · 2020Article
- Bicarbonate-Mediated COBiochemistry · 2020Article
- Membrane Inlet Mass Spectrometry: A Powerful Tool for Algal Research.Frontiers in plant science · 2020Article
- Thomas John Wydrzynski (8 July 1947-16 March 2018).Photosynthesis research · 2019Article
- A sixty-year tryst with photosynthesis and related processes: an informal personal perspective.Photosynthesis research · 2019Article
- Vyacheslav (Slava) Klimov (1945-2017): A scientist par excellence, a great human being, a friend, and a Renaissance man.Photosynthesis research · 2018Article
- Evolution of the Z-scheme of photosynthesis: a perspective.Photosynthesis research · 2017Review
- Bicarbonate-induced redox tuning in Photosystem II for regulation and protection.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
- Marine phototrophic consortia transfer electrons to electrodes in response to reductive stress.Photosynthesis research · 2016Article
- Photoactivation: The Light-Driven Assembly of the Water Oxidation Complex of Photosystem II.Frontiers in plant science · 2016Review
- Crystal structure and functional characterization of photosystem II-associated carbonic anhydrase CAH3 in Chlamydomonas reinhardtii.Plant physiology · 2015Article
- Teaching the Z-Scheme of electron transport in photosynthesis: a perspective.Photosynthesis research · 2015Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cyanobacteria, algae, and plants oxidize water to the O2 we breathe, and consume CO2 during the synthesis of biomass. Although these vital processes are functionally and structurally well separated in photosynthetic organisms, there is a long-debated role for CO2/ in water oxidation. Using membrane-inlet mass spectrometry we demonstrate that acts as a mobile proton acceptor that helps to transport the protons produced inside of photosystem II by water oxidation out into the chloroplast's lumen, resulting in a light-driven production of O2 and CO2. Depletion of from the media leads, in the absence of added buffers, to a reversible down-regulation of O2 production by about 20%. These findings add a previously unidentified component to the regulatory network of oxygenic photosynthesis and conclude the more than 50-y-long quest for the function of CO2/ in photosynthetic water oxidation.
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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.