ArticleFrontiers in plant science2015
Deletion of Proton Gradient Regulation 5 (PGR5) and PGR5-Like 1 (PGRL1) proteins promote sustainable light-driven hydrogen production in Chlamydomonas reinhardtii due to increased PSII activity under sulfur deprivation.
Article in Frontiers in plant science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 85 citations in OpenAlex.
- Effects of Photosynthesis Inhibitors on HPlants (Basel, Switzerland) · 2026Review
- Engineered microbial hydrogels with confined architecture and binary microbes for efficient hydrogen production.Nature communications · 2026Article
- The Role of Brassinosteroids in Plant Cold Stress Response.Life (Basel, Switzerland) · 2024Review
- Light-Driven HPlants (Basel, Switzerland) · 2024Review
- Dysfunction of Chloroplast Protease Activity MitigatesPlants (Basel, Switzerland) · 2024Article
- Scaling-up and proteomic analysis reveals photosynthetic and metabolic insights toward prolonged HPhotosynthesis research · 2022Article
- A two-phase protocol for ambient hydrogen production usingSTAR protocols · 2022Article
- 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
- Here comes the sun: How optimization of photosynthetic light reactions can boost crop yields.Journal of integrative plant biology · 2022Review
- Interactions Between Carbon Metabolism and Photosynthetic Electron Transport in aFrontiers in plant science · 2022Article
- Autophagy Induced Accumulation of Lipids inFrontiers in plant science · 2021Article
- Light-induced HY5 Functions as a Systemic Signal to Coordinate the Photoprotective Response to Light Fluctuation.Plant physiology · 2020Article
- Review
- PGR5/PGRL1 and NDH Mediate Far-Red Light-Induced Photoprotection in Response to Chilling Stress in Tomato.Frontiers in plant science · 2020Article
- Brassinosteroids Act as a Positive Regulator of Photoprotection in Response to Chilling Stress.Plant physiology · 2019Article
- Maintaining homeostasis by controlled alternatives for energy distribution in plant cells under changing conditions of supply and demand.Photosynthesis research · 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
- Water-splitting-based, sustainable and efficient HBiotechnology for biofuels · 2018Article
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Authors and funding
9 authors at 4 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Continuous hydrogen photo-production under sulfur deprivation was studied in the Chlamydomonas reinhardtii pgr5 pgrl1 double mutant and respective single mutants. Under medium light conditions, the pgr5 exhibited the highest performance and produced about eight times more hydrogen than the wild type, making pgr5 one of the most efficient hydrogen producer reported so far. The pgr5 pgrl1 double mutant showed an increased hydrogen burst at the beginning of sulfur deprivation under high light conditions, but in this case the overall amount of hydrogen produced by pgr5 pgrl1 as well as pgr5 was diminished due to photo-inhibition and increased degradation of PSI. In contrast, the pgrl1 was effective in hydrogen production in both high and low light. Blocking photosynthetic electron transfer by DCMU stopped hydrogen production almost completely in the mutant strains, indicating that the main pathway of electrons toward enhanced hydrogen production is via linear electron transport. Indeed, PSII remained more active and stable in the pgr mutant strains as compared to the wild type. Since transition to anaerobiosis was faster and could be maintained due to an increased oxygen consumption capacity, this likely preserves PSII from photo-oxidative damage in the pgr mutants. Hence, we conclude that increased hydrogen production under sulfur deprivation in the pgr5 and pgrl1 mutants is caused by an increased stability of PSII permitting sustainable light-driven hydrogen production in Chlamydomonas reinhardtii.
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