ArticlePlant physiology2015
Induction of Photosynthetic Carbon Fixation in Anoxia Relies on Hydrogenase Activity and Proton-Gradient Regulation-Like1-Mediated Cyclic Electron Flow in Chlamydomonas reinhardtii.
Article in Plant physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 66 citations in OpenAlex.
- Siphonous green macroalgae with contrasting capacities for the energy-dependent quenching, qE, rely on different photoprotective mechanisms.Photosynthesis research · 2026Article
- A Reaction-Diffusion Frame for Accessing Metabolic OAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Light-Driven HPlants (Basel, Switzerland) · 2024Review
- Regulation of Microalgal Photosynthetic Electron Transfer.Plants (Basel, Switzerland) · 2024Review
- A PSII photosynthetic control is activated in anoxic cultures of green algae following illumination.Communications biology · 2023Article
- The Functions of Chloroplastic Ascorbate in Vascular Plants and Algae.International journal of molecular sciences · 2023Review
- Induction of photosynthesis under anoxic condition inFrontiers in plant science · 2023Article
- Synthetic biology for improved hydrogen production in Chlamydomonas reinhardtii.Microbial biotechnology · 2022Review
- Characterization of the wave phenomenon of flash-induced chlorophyll fluorescence in Chlamydomonas reinhardtii.Photosynthesis research · 2022Article
- Long-term acclimation to cadmium exposure reveals extensive phenotypic plasticity in Chlamydomonas.Plant physiology · 2021Article
- Inactivation of mitochondrial complex I stimulates chloroplast ATPase in Physcomitrium patens.Plant physiology · 2021Article
- Advances in Understanding of Desiccation Tolerance of Lichens and Lichen-Forming Algae.Plants (Basel, Switzerland) · 2021Review
- 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
- Membrane Inlet Mass Spectrometry: A Powerful Tool for Algal Research.Frontiers in plant science · 2020Article
- Reciprocal regulation of photosynthesis and mitochondrial respiration by TOR kinase inPlant direct · 2019Article
- Biological hydrogen production: molecular and electrolytic perspectives.World journal of microbiology & biotechnology · 2019Review
- Chlororespiration Controls Growth Under Intermittent Light.Plant physiology · 2019Article
- Elimination of the flavodiiron electron sink facilitates long-term HBiotechnology for biofuels · 2019Article
- Re-routing photosynthetic energy for continuous hydrogen production in vivo.Biotechnology for biofuels · 2019Article
- Absolute quantification of selected photosynthetic electron transfer proteins in Chlamydomonas reinhardtii in the presence and absence of oxygen.Photosynthesis research · 2018Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The model green microalga Chlamydomonas reinhardtii is frequently subject to periods of dark and anoxia in its natural environment. Here, by resorting to mutants defective in the maturation of the chloroplastic oxygen-sensitive hydrogenases or in Proton-Gradient Regulation-Like1 (PGRL1)-dependent cyclic electron flow around photosystem I (PSI-CEF), we demonstrate the sequential contribution of these alternative electron flows (AEFs) in the reactivation of photosynthetic carbon fixation during a shift from dark anoxia to light. At light onset, hydrogenase activity sustains a linear electron flow from photosystem II, which is followed by a transient PSI-CEF in the wild type. By promoting ATP synthesis without net generation of photosynthetic reductants, the two AEF are critical for restoration of the capacity for carbon dioxide fixation in the light. Our data also suggest that the decrease in hydrogen evolution with time of illumination might be due to competition for reduced ferredoxins between ferredoxin-NADP(+) oxidoreductase and hydrogenases, rather than due to the sensitivity of hydrogenase activity to oxygen. Finally, the absence of the two alternative pathways in a double mutant pgrl1 hydrogenase maturation factor G-2 is detrimental for photosynthesis and growth and cannot be compensated by any other AEF or anoxic metabolic responses. This highlights the role of hydrogenase activity and PSI-CEF in the ecological success of microalgae in low-oxygen environments.
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