ArticlePlanta2008
Hydrogen production by Chlamydomonas reinhardtii: an elaborate interplay of electron sources and sinks.
Article in Planta, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 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.
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
55 citing papers in PubMed, 215 citations in OpenAlex.
- Effects of Photosynthesis Inhibitors on HPlants (Basel, Switzerland) · 2026Review
- Smart-driven bioengineering techniques for enhancing microalgal biohydrogen production.Biotechnology for biofuels and bioproducts · 2026Review
- Light-Driven HPlants (Basel, Switzerland) · 2024Review
- The Role and Mechanism of Hydrogen-Rich Water in theInternational journal of molecular sciences · 2023Article
- Photosystem I light-harvesting proteins regulate photosynthetic electron transfer and hydrogen production.Plant physiology · 2022Article
- Valorization of microalgae biomass into bioproducts promoting circular bioeconomy: a holistic approach of bioremediation and biorefinery.3 Biotech · 2021Review
- Downstream Signalling from Molecular Hydrogen.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
- Hydrogenases and the Role of Molecular Hydrogen in Plants.Plants (Basel, Switzerland) · 2020Review
- Mechanistic insights into pH-dependent HBiotechnology for biofuels · 2020Article
- Characterization of the transient fluorescence wave phenomenon that occurs during H2 production in Chlamydomonas reinhardtii.Journal of experimental botany · 2019Article
- Subcellular Energetics and Carbon Storage inCells · 2019Review
- Role of ClpP in the Biogenesis and Degradation of RuBisCO and ATP Synthase inPlants (Basel, Switzerland) · 2019Article
- Nitric Oxide Remodels the Photosynthetic Apparatus upon S-Starvation inPlant physiology · 2019Article
- Flavodiiron-Mediated OPlant physiology · 2018Article
- Spectroscopical Investigations on the Redox Chemistry of [FeFe]-Hydrogenases in the Presence of Carbon Monoxide.Molecules (Basel, Switzerland) · 2018Article
- Bioenergetic reprogramming plasticity under nitrogen depletion by the unicellular green alga Scenedesmus obliquus.Planta · 2018Article
- Water-splitting-based, sustainable and efficient HBiotechnology for biofuels · 2018Article
- Improved photobio-HBiotechnology for biofuels · 2018Article
- Microalgal hydrogen production: prospects of an essential technology for a clean and sustainable energy economy.Photosynthesis research · 2017Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The unicellular green alga Chlamydomonas reinhardtii possesses a [FeFe]-hydrogenase HydA1 (EC 1.12.7.2), which is coupled to the photosynthetic electron transport chain. Large amounts of H2 are produced in a light-dependent reaction for several days when C. reinhardtii cells are deprived of sulfur. Under these conditions, the cells drastically change their physiology from aerobic photosynthetic growth to an anaerobic resting state. The understanding of the underlying physiological processes is not only important for getting further insights into the adaptability of photosynthesis, but will help to optimize the biotechnological application of algae as H2 producers. Two of the still most disputed questions regarding H2 generation by C. reinhardtii concern the electron source for H2 evolution and the competition of the hydrogenase with alternative electron sinks. We analyzed the H2 metabolism of S-depleted C. reinhardtii cultures utilizing a special mass spectrometer setup and investigated the influence of photosystem II (PSII)- or ribulosebisphosphate-carboxylase/oxygenase (Rubisco)-deficiency. We show that electrons for H2-production are provided both by PSII activity and by a non-photochemical plastoquinone reduction pathway, which is dependent on previous PSII activity. In a Rubisco-deficient strain, which produces H2 also in the presence of sulfur, H2 generation seems to be the only significant electron sink for PSII activity and rescues this strain at least partially from a light-sensitive phenotype. The latter indicates that the down-regulation of assimilatory pathways in S-deprived C. reinhardtii cells is one of the important prerequisites for a sustained H2 evolution.
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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.