ArticleJournal of bacteriology1998
Photosynthetic electron transport involved in PxcA-dependent proton extrusion in Synechocystis sp. Strain PCC6803: effect of pxcA inactivation on CO2, HCO3-, and NO3- uptake.
Article in Journal of bacteriology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 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
16 citing papers in PubMed, 41 citations in OpenAlex.
- Na + -driven pH regulation by Na+/H+ antiporters promotes photosynthetic efficiency in cyanobacteria.Plant physiology · 2024Article
- MgPhotosynthesis research · 2024Article
- Flv3A facilitates OThe New phytologist · 2023Article
- Chloroplast pH Homeostasis for the Regulation of Photosynthesis.Frontiers in plant science · 2022Review
- Lack of plastid-encoded Ycf10, a homolog of the nuclear-encoded DLDG1 and the cyanobacterial PxcA, enhances the induction of non-photochemical quenching in tobacco.Plant direct · 2021Article
- Diurnal Fe(II)/Fe(III) cycling and enhanced ONature communications · 2021Article
- Characterization of ABC transporter genes, sll1180, sll1181, and slr1270, involved in acid stress tolerance of Synechocystis sp. PCC 6803.Photosynthesis research · 2019Article
- The stress-induced SCP/HLIP family of small light-harvesting-like proteins (ScpABCDE) protects Photosystem II from photoinhibitory damages in the cyanobacterium Synechocystis sp. PCC 6803.Photosynthesis research · 2018Article
- Regulatory components of carbon concentrating mechanisms in aquatic unicellular photosynthetic organisms.Plant cell reports · 2017Review
- Acclimation to High COPlant physiology · 2017Article
- Sll0751 and Sll1041 are involved in acid stress tolerance in Synechocystis sp. PCC 6803.Photosynthesis research · 2015Article
- Transplastomic integration of a cyanobacterial bicarbonate transporter into tobacco chloroplasts.Journal of experimental botany · 2014Article
- Inorganic carbon transporters of the cyanobacterial CO2 concentrating mechanism.Photosynthesis research · 2011Review
- Use of Ion-Channel Modulating Agents to Study Cyanobacterial Na(+) - K(+) Fluxes.Biological procedures online · 2004Article
- Identification of an ATP-binding cassette transporter involved in bicarbonate uptake in the cyanobacterium Synechococcus sp. strain PCC 7942.Proceedings of the National Academy of Sciences of the United States of America · 1999Article
- Impact of the Simultaneous Loss of the Plastid Envelope-Localized Homologous Pair Ycf10 and DLDG1 in Plant Growth and Photosynthetic Performance.Physiologia plantarumArticle
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The product of pxcA (formerly known as cotA) is involved in light-induced Na+-dependent proton extrusion. In the presence of 2, 5-dimethyl-p-benzoquinone, net proton extrusion by Synechocystis sp. strain PCC6803 ceased after 1 min of illumination and a postillumination influx of protons was observed, suggesting that the PxcA-dependent, light-dependent proton extrusion equilibrates with a light-independent influx of protons. A photosystem I (PS I) deletion mutant extruded a large number of protons in the light. Thus, PS II-dependent electron transfer and proton translocation are major factors in light-driven proton extrusion, presumably mediated by ATP synthesis. Inhibition of CO2 fixation by glyceraldehyde in a cytochrome c oxidase (COX) deletion mutant strongly inhibited the proton extrusion. Leakage of PS II-generated electrons to oxygen via COX appears to be required for proton extrusion when CO2 fixation is inhibited. At pH 8.0, NO3- uptake activity was very low in the pxcA mutant at low [Na+] (approximately 100 microM). At pH 6.5, the pxcA strain did not take up CO2 or NO3- at low [Na+] and showed very low CO2 uptake activity even at 15 mM Na+. A possible role of PxcA-dependent proton exchange in charge and pH homeostasis during uptake of CO2, HCO3-, and NO3- is discussed.
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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.