ArticlePhotosynthesis research2007
Photoproduction of hydrogen by sulfur-deprived C. reinhardtii mutants with impaired photosystem II photochemical activity.
Article in Photosynthesis research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 68 citations in OpenAlex.
- Effects of mutations of D1-R323, D1-N322, D1-D319, D1-H304 on the functioning of photosystem II in Thermosynechococcus vulcanus.Photosynthesis research · 2022Article
- Characterization of the transient fluorescence wave phenomenon that occurs during H2 production in Chlamydomonas reinhardtii.Journal of experimental botany · 2019Article
- Improved photobio-HBiotechnology for biofuels · 2018Article
- Enhanced Lipid Production inFrontiers in plant science · 2018Article
- Challenges and opportunities for hydrogen production from microalgae.Plant biotechnology journal · 2016Review
- Relevance of nutrient media composition for hydrogen production in Chlamydomonas.Photosynthesis research · 2015Review
- Implementation of photobiological H2 production: the O 2 sensitivity of hydrogenases.Photosynthesis research · 2015Article
- Increased photosystem II stability promotes H2 production in sulfur-deprived Chlamydomonas reinhardtii.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- RNAi knock-down of LHCBM1, 2 and 3 increases photosynthetic H2 production efficiency of the green alga Chlamydomonas reinhardtii.PloS one · 2013Article
- The interplay of proton, electron, and metabolite supply for photosynthetic H2 production in Chlamydomonas reinhardtii.The Journal of biological chemistry · 2010Article
- Gene expression patterns of sulfur starvation in Synechocystis sp. PCC 6803.BMC genomics · 2008Article
- Analytical approaches to photobiological hydrogen production in unicellular green algae.Photosynthesis researchReview
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photoproduction of H2 was examined in a series of sulfur-deprived Chlamydomonas reinhardtii D1-R323 mutants with progressively impaired PSII photochemical activity. In the R323H, R323D, and R323E D1 mutants, replacement of arginine affects photosystem II (PSII) function, as demonstrated by progressive decreases in O2-evolving activity and loss of PSII photochemical activity. Significant changes in PSII activity were found when the arginine residue was replaced by negatively charged amino acid residues (R323D and R323E). However, the R323H (positively charged or neutral, depending on the ambient pH) mutant had minimal changes in PSII activity. The R323H, R323D, and R323E mutants and the pseudo-wild-type (pWt) with restored PSII function were used to study the effects of sulfur deprivation on H2-production activity. All of these mutants exhibited significant changes in the normal parameters associated with the H2-photoproduction process, such as a shorter aerobic phase, lower accumulation of starch, a prolonged anaerobic phase observed before the onset of H2-production, a shorter duration of H2-production, lower H2 yields compared to the pWt control, and slightly higher production of dark fermentation products such as acetate and formate. The more compromised the PSII photochemical activity, the more dramatic was the effect of sulfur deprivation on the H2-production process, which depends both on the presence of residual PSII activity and the amount of stored starch.
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