Results 41 to 50 of about 1,718 (152)

Naphthylacetic Acid and Tea Polyphenol Application Promote Biomass and Lipid Production of Nervonic Acid-Producing Microalgae

open access: yesFrontiers in Plant Science, 2018
Mychonastes afer HSO-3-1 is a potential producer of nervonic acid, which could be accumulated to 2–3% of dry cell weight. Improving the productivity of nervonic acid is critical to promote the commercialization of this product.
Feng Xu   +7 more
doaj   +1 more source

Contabilidad Financiera - CP43 - 202102

open access: yes, 2021
Descripción: Actualmente en un mercado globalizado y competitivo el profesional debe tomar decisiones empresariales de implicancia financiera, para lo cual debe estar preparado y en condiciones de analizar las variables y componentes que permitan la creación de valor y la estabilidad en los negocios.
Huertas Pomalaya, Donnie Luis Miguel   +1 more
openaire   +1 more source

Analysis of the PS II proteins MSP and CP43 [PDF]

open access: yes, 1995
The goals of this proposal were two-fold: (1) to analyze the impact of mutations in the psbO gene (coding for the Mn-stabilizing protein, MSP) on O{sub 2}-evolution; and (2) to analyze membrane assembly in cyanobacteria, especially the effect of iron deficiency on this process.
openaire   +2 more sources

Localization of the CyanoP binding site on Photosystem II by surface plasmon resonance spectroscopy

open access: yesFrontiers in Plant Science, 2014
Photosystem II (PSII), a large multi subunit membrane protein complex localized in the thylakoid membrane of cyanobacteria and chloroplasts, is the only known enzyme that catalyzes the light driven oxidation of water.
Kai U Cormann   +3 more
doaj   +1 more source

Daily Heat Stress Induces Donor‐Side Limitation of PSI Via Downregulation of the Cyt b6f Complex

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT The rapidly warming climate is driving increasingly frequent and intense heat waves worldwide, posing major challenges to plant metabolism and growth. Despite the central role of photosynthesis in plant growth, the effects of prolonged heat stress on the primary reactions of photosynthesis remain poorly understood.
Laura Laihonen   +5 more
wiley   +1 more source

Exploring thylakoid emergence: evolution of membrane biogenesis and photosystem II assembly in early‐diverging cyanobacteria

open access: yesNew Phytologist, Volume 251, Issue 3, Page 1329-1343, August 2026.
Overview of the results. Phylogenetic analyses of 36 assembly factors of photosystem II (PSII) and 13 proteins involved in membrane dynamics summarized in Siebenaller & Schneider (2023) were performed to investigate the taxonomic distributions and structural differences between the thylakoid‐less Gloeobacterales and the Phycobacteria. Summary Thylakoid
Louise Hambücken   +2 more
wiley   +1 more source

Pathways for Energy Transfer in the Core Light-Harvesting Complexes CP43 and CP47 of Photosystem II [PDF]

open access: yesBiophysical Journal, 2002
The pigment-protein complexes CP43 and CP47 transfer excitation energy from the peripheral antenna of photosystem II toward the photochemical reaction center. We measured the excitation dynamics of the chlorophylls in isolated CP43 and CP47 complexes at 77 K by time-resolved absorbance-difference and fluorescence spectroscopy.
de Weerd, F.L.   +4 more
openaire   +2 more sources

Phycobilisomes: modular light‐harvesting systems of cyanobacteria and red algae

open access: yesThe Plant Journal, Volume 127, Issue 3, August 2026.
SUMMARY Phycobilisomes (PBSs) are supramolecular pigment–protein complexes that function as the principal light‐harvesting antennae in cyanobacteria, red algae (Rhodophyta), and glaucophytes, and to a lesser extent in cryptophytes. Because the intrinsic chlorophyll‐based antennae of the photosystems absorb poorly in the green region of the spectrum ...
Henning Kirst   +1 more
wiley   +1 more source

Comment on Photosystem II: light‐dependent oscillation of ligand composition at its active site: existence of O6 in S3‐state photosystem II revealed by omit maps

open access: yesActa Crystallographica Section D, Volume 82, Issue 6, Page 574-586, June 2026.
We reanalyzed our XFEL data, the results of which showed the insertion of O6 during the S2–S3 transition in water oxidation by photosystem II. These results contradict the interpretation proposed by Wang that there is no insertion of O6 during the S2–S3 transition.Photosystem II (PSII) catalyzes the light‐driven oxidation of water to molecular oxygen ...
Hongjie Li   +2 more
wiley   +1 more source

Reconstructing the origin of oxygenic photosynthesis: do assembly and photoactivation recapitulate evolution?

open access: yesFrontiers in Plant Science, 2016
Due to the great abundance of genomes and protein structures that today span a broad diversity of organisms, now more than ever before, it is possible to reconstruct the molecular evolution of protein complexes at an incredible level of detail.
Tanai eCardona
doaj   +1 more source

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