ArticleProceedings of the National Academy of Sciences of the United States of America2015
Activation of cyclic electron flow by hydrogen peroxide in vivo.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.
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Who cites it
63 citing papers in PubMed.
- PROTON GRADIENT REGULATION 5 enables efficient C4 photosynthesis under fluctuating light.Plant physiology · 2025Article
- Pathways of Oxygen-Dependent Oxidation of the Plastoquinone Pool in the Dark After Illumination.Plants (Basel, Switzerland) · 2024Article
- The ascorbate-glutathione cycle coming of age.Journal of experimental botany · 2024Review
- The role of photorespiration in preventing feedback regulation via ATP synthase in Nicotiana tabacum.Plant, cell & environment · 2024Article
- Singlet Oxygen and Superoxide Anion Radical Detection by EPR Spin Trapping in Thylakoid Preparations.Methods in molecular biology (Clifton, N.J.) · 2024Article
- High cyclic electron transfer via the PGR5 pathway in the absence of photosynthetic control.Plant physiology · 2023Article
- Deficiency in NDH-cyclic electron transport retards heat acclimation of photosynthesis in tobacco over day and night shift.Frontiers in plant science · 2023Article
- Energetic considerations for engineering novel biochemistries in photosynthetic organisms.Frontiers in plant science · 2023Review
- Integrated Physiological, Transcriptomic, and Proteomic Analyses Reveal the Regulatory Role of Melatonin in Tomato Plants' Response to Low Night Temperature.Antioxidants (Basel, Switzerland) · 2022Article
- The Dynamic Changes of Alternative Electron Flows upon Transition from Low to High Light in the FernCells · 2022Article
- The arbuscular mycorrhizal fungus Rhizophagus clarus improves physiological tolerance to drought stress in soybean plants.Scientific reports · 2022Article
- Cyclic electron flow (CEF) and ascorbate pathway activity provide constitutive photoprotection for the photopsychrophile, Chlamydomonas sp. UWO 241 (renamed Chlamydomonas priscuii).Photosynthesis research · 2022Article
- Interactions Between Carbon Metabolism and Photosynthetic Electron Transport in aFrontiers in plant science · 2022Article
- Knowledge of Regulation of Photosynthesis in Outdoor Microalgae Cultures Is Essential for the Optimization of Biomass Productivity.Frontiers in plant science · 2022Article
- Article
- Heat-induced down-regulation of photosystem II protects photosystem I in honeysuckle (Lonicera japonica).Journal of plant research · 2021Article
- Functional basis of electron transport within photosynthetic complex I.Nature communications · 2021Article
- The roles of photorespiration and alternative electron acceptors in the responses of photosynthesis to elevated temperatures in cowpea.Plant, cell & environment · 2021Article
- Photosynthesis: a multiscopic view.Journal of plant research · 2021Review
- Review
3 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cyclic electron flow (CEF) around photosystem I is thought to balance the ATP/NADPH energy budget of photosynthesis, requiring that its rate be finely regulated. The mechanisms of this regulation are not well understood. We observed that mutants that exhibited constitutively high rates of CEF also showed elevated production of H2O2. We thus tested the hypothesis that CEF can be activated by H2O2 in vivo. CEF was strongly increased by H2O2 both by infiltration or in situ production by chloroplast-localized glycolate oxidase, implying that H2O2 can activate CEF either directly by redox modulation of key enzymes, or indirectly by affecting other photosynthetic processes. CEF appeared with a half time of about 20 min after exposure to H2O2, suggesting activation of previously expressed CEF-related machinery. H2O2-dependent CEF was not sensitive to antimycin A or loss of PGR5, indicating that increased CEF probably does not involve the PGR5-PGRL1 associated pathway. In contrast, the rise in CEF was not observed in a mutant deficient in the chloroplast NADPH:PQ reductase (NDH), supporting the involvement of this complex in CEF activated by H2O2. We propose that H2O2 is a missing link between environmental stress, metabolism, and redox regulation of CEF in higher plants.
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