ArticlePlant physiology2018
Green Algal Hydrogenase Activity Is Outcompeted by Carbon Fixation before Inactivation by Oxygen Takes Place.
Article in Plant physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
21 citing papers in PubMed, 58 citations in OpenAlex.
- Electrochemical Protection of Cyanobacterial Cells from Molecular Oxygen Enables Sustained PhotoHAngewandte Chemie (International ed. in English) · 2026Article
- Activating protein kinases to treat diseases: Current understanding and future challenges.Acta pharmaceutica Sinica. B · 2026Review
- Outlook on Synthetic Biology-Driven Hydrogen Production: Lessons from Algal Photosynthesis Applied to Cyanobacteria.Energy & fuels : an American Chemical Society journal · 2025Review
- Light-Driven HPlants (Basel, Switzerland) · 2024Review
- Regulation of Microalgal Photosynthetic Electron Transfer.Plants (Basel, Switzerland) · 2024Review
- The MicroalgaeCells · 2024Review
- The AlgaInternational journal of molecular sciences · 2023Article
- A PSII photosynthetic control is activated in anoxic cultures of green algae following illumination.Communications biology · 2023Article
- Novel concepts and engineering strategies for heterologous expression of efficient hydrogenases in photosynthetic microorganisms.Frontiers in microbiology · 2023Review
- Synthetic biology for improved hydrogen production in Chlamydomonas reinhardtii.Microbial biotechnology · 2022Review
- Photosystem I light-harvesting proteins regulate photosynthetic electron transfer and hydrogen production.Plant physiology · 2022Article
- Carbon flux through photosynthesis and central carbon metabolism show distinct patterns between algae, CNature plants · 2022Article
- Improved photosynthetic capacity and photosystem I oxidation via heterologous metabolism engineering in cyanobacteria.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- 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 at the Crossroads of Photosynthesis, Biofuel, and Climate Research.Plant physiology · 2020Article
- Review
- Mechanistic insights into pH-dependent HBiotechnology for biofuels · 2020Article
- Biological hydrogen production: molecular and electrolytic perspectives.World journal of microbiology & biotechnology · 2019Review
- Re-routing photosynthetic energy for continuous hydrogen production in vivo.Biotechnology for biofuels · 2019Article
- Elimination of the flavodiiron electron sink facilitates long-term HBiotechnology for biofuels · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photoproduction of hydrogen by green algae is considered a transitory release valve of excess reducing power and a potential carbon-free source of sustainable energy. It is generally accepted that the transitory production of hydrogen is governed by fast inactivation of hydrogenase by oxygen. However, our data suggest that photosynthetic electron loss to competing processes, mainly carbon fixation, stops hydrogen production, supports hydrogen uptake, and precedes the inevitable inactivation by oxygen. Here, we show that when transitioning from dark anaerobiosis to light, hydrogen production ceases within 2 min, regardless of the presence of oxygen. Simultaneous monitoring of the active hydrogenase pool size shows that it remains entirely intact up to 4 min after illumination and is inactivated only later. Thus, our data reveal a window of 4 min in which the hydrogenase pool is not being degraded by oxygen. Furthermore, we show that electron loss, prominently to carbon fixation, outcompetes hydrogen production and leads to hydrogen uptake. Indeed, supplying additional reducing power to hydrogenase at the cessation point regenerates the accumulation of hydrogen. Our results imply the fast cessation of hydrogen production is governed by electron loss rather than oxygen inactivation, which takes place minutes later.
Indexed as
Identifiers
What OpenQuestion holds
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.