Results 41 to 50 of about 509 (140)

Hunting the main player enabling Chlamydomonas reinhardtii growth under fluctuating light [PDF]

open access: yes, 2018
International audiencePhotosynthetic organisms have evolved numerous photoprotective mechanisms and alternative electron sinks/pathways to fine-tune the photosynthetic apparatus under dynamic environmental conditions, such as varying carbon supply or ...
Allahverdiyeva, Yagut   +10 more
core   +2 more sources

Photosynthesis regulation impacts carbon and nitrogen assimilation in the diazotrophic cyanobacterium Anabaena sp. PCC 7120

open access: yesNew Phytologist, Volume 251, Issue 1, Page 94-110, July 2026.
Model of intercellular functional coordination in Anabaena. Summary Diazotrophic cyanobacteria fix both atmospheric carbon (C) and nitrogen (N) into biomass, but the two assimilation pathways are not compatible. Species like Anabaena sp. PCC 7120 physically separate C and N assimilation in different cell types.
Anna Santin   +9 more
wiley   +1 more source

Complete Chloroplast Genome of the Eria Sensu Lato Complex (Orchidaceae): Comparative Analysis and Phylogenetic Relationship

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We sequenced and assembled 18 complete chloroplast genomes representing the Eria sensu lato complex. Our comparative analyses unveiled stepwise NDH complex degradation, lineage‐specific positive selection on ycf1, and climate‐driven rapid radiation during the Late Miocene.
Xinyi Wu   +6 more
wiley   +1 more source

Proton Gradient Regulation5-Like1-Mediated Cyclic Electron Flow Is Crucial for Acclimation to Anoxia and Complementary to Nonphotochemical Quenching in Stress Adaptation. [PDF]

open access: yes, 2014
International audienceTo investigate the functional importance of Proton Gradient Regulation5-Like1 (PGRL1) for photosynthetic performances in the moss Physcomitrella patens, we generated a pgrl1 knockout mutant.
Petroutsos, Dimitris   +8 more
core   +1 more source

Coordinated Activity of Photosystem I and Photosystem II in Selaginella martensii (Lycopodiophyta) Across Light Gradients

open access: yesPhysiologia Plantarum, Volume 178, Issue 2, March/April 2026.
ABSTRACT Selaginella martensii is a living member of lycophytes, an early divergent group of vascular plants. This shade‐adapted species can acclimate to various light regimes, from deep shade to high light, with a gain in carboxylation capacity accompanied by modulations in thylakoid composition, including increased relative amount of photosystem I ...
Lorenzo Ferroni   +6 more
wiley   +1 more source

Flavodiiron Protein Activity Outcompetes Cyclic Electron Transport When Expressed in Angiosperm Nicotiana tabacum

open access: yesPhysiologia Plantarum, Volume 177, Issue 4, July/August 2025.
ABSTRACT In conditions of excess illumination, alternative electron transport pathways in the thylakoid membranes protect the photosynthetic apparatus against damage from eventual over‐reduction. Two main pathways downstream of photosystem I (PSI) enable alternative electron flow, mitigating PSI acceptor‐side limitation, while contributing to ATP ...
Nicholas Rizzetto   +7 more
wiley   +1 more source

Exploring the functional properties of PGRL1 in Physcomitrella patens

open access: yes, 2014
PGRL1 ist ein Transmembranprotein der Thylakoidmembranen. In Arabidopsis thaliana ist PGRL1 involviert im zyklischen Elektronentransport (CEF) der Photosynthese (DalCorso et al., 2008).
Kukuczka, B. (Bernadeta)
core   +1 more source

Flavodiiron proteins in Physcomitrium patens: navigating the edge between photoprotection and efficiency

open access: yesThe Plant Journal, Volume 121, Issue 4, February 2025.
Significance Statement Flavodiiron proteins are active in the photoprotection of photosynthetic organisms exposed to light fluctuations. This study identifies some potential drawbacks of FLV overexpression, opening hypotheses for their evolutionary loss in angiosperms.
Eleonora Traverso   +4 more
wiley   +1 more source

Unique structural attributes of the PSI‐NDH supercomplex in Physcomitrium patens

open access: yesThe Plant Journal, Volume 120, Issue 5, Page 2226-2237, December 2024.
SUMMARY Cyclic electron transport around photosystem I (PSI) is essential for the protection of the photosynthetic apparatus in plants under diverse light conditions. This process is primarily mediated by Proton Gradient Regulation 5 protein/Proton Gradient Regulation 5‐like photosynthetic phenotype 1 protein (PGR5/PGRL1) and NADH dehydrogenase‐like ...
Monika Opatíková, Roman Kouřil
wiley   +1 more source

Control of hydrogen photoproduction by the proton gradient generated by cyclic electron flow in Chlamydomonas reinhardtii. [PDF]

open access: yes, 2011
peer reviewedHydrogen photoproduction by eukaryotic microalgae results from a connection between the photosynthetic electron transport chain and a plastidial hydrogenase.
Michael Hippler   +35 more
core   +1 more source

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