Results 31 to 40 of about 47,143 (306)

Oxidized amino acid residues in the vicinity of Q(A) and Pheo(D1) of the photosystem II reaction center: putative generation sites of reducing-side reactive oxygen species. [PDF]

PLoS ONE, 2013
Under a variety of stress conditions, Photosystem II produces reactive oxygen species on both the reducing and oxidizing sides of the photosystem. A number of different sites including the Mn4O5Ca cluster, P680, PheoD1, QA, QB and cytochrome b559 have ...
Laurie K Frankel, Larry Sallans, Patrick A Limbach, Terry M Bricker   +3 more
doaj   +1 more source

Microdomains heterogeneity in the thylakoid membrane proteins visualized by super-resolution microscopy

Photosynthetica, 2023
The investigation of spatial heterogeneity within the thylakoid membrane (TM) proteins has gained increasing attention in photosynthetic research. The recent advances in live-cell imaging have allowed the identification of heterogeneous organisation of ...
R. KAŇA, B. ŠEDIVÁ, O. PRÁŠIL
doaj   +1 more source

Molecular diversity and evolution of far-red light-acclimated photosystem I

Frontiers in Plant Science, 2023
The need to acclimate to different environmental conditions is central to the evolution of cyanobacteria. Far-red light (FRL) photoacclimation, or FaRLiP, is an acclimation mechanism that enables certain cyanobacteria to use FRL to drive photosynthesis ...
Christopher J. Gisriel, Donald A. Bryant, Gary W. Brudvig, Gary W. Brudvig, Tanai Cardona, Tanai Cardona   +5 more
doaj   +1 more source

Enzyme‐Like Synthetic Cleft for Light‐Driven Water‐Oxidation Catalysis Via an Oxide Relay Pathway

Angewandte Chemie, EarlyView.
A carboxylic acid group introduced into the second coordination sphere of a Ru(bda) water oxidation catalyst forms a defined hydrogen bond within the catalytic cleft. This interaction locks the group in place and enables an intramolecular oxide relay pathway between Ru(V)═O and the carboxylate group, providing a distinct and efficient route for O─O ...
Daniel A. P. Friedewald, Gourab Das, Philipp H. Kirchner, Olga Anhalt, Deqi Tang, Sandra Luber, Florian Beuerle, Frank Würthner   +7 more
wiley   +2 more sources

High-resolution model of Arabidopsis Photosystem II reveals the structural consequences of digitonin-extraction

Scientific Reports, 2021
In higher plants, the photosynthetic process is performed and regulated by Photosystem II (PSII). Arabidopsis thaliana was the first higher plant with a fully sequenced genome, conferring it the status of a model organism; nonetheless, a high-resolution ...
André T. Graça, Michael Hall, Karina Persson, Wolfgang P. Schröder   +3 more
doaj   +1 more source

Single and Double Knockouts of the Genes for Photosystem I Subunits G, K, and H of Arabidopsis [PDF]

, 2002
Photosystem I (PSI) of higher plants contains 18 subunits. Using Arabidopsis En insertion lines, we have isolated knockout alleles of the genes psaG, psaH2, and psaK, which code for PSI-G, -H, and -K.
Varotto, Claudio, Schiavon, Fabio, Leister, Dario, Leßnick, Angela, Tizzano, Marco, Jahns, Peter, Salamini, Francesco, Pesaresi, Paolo   +7 more
core   +1 more source

Light and Dark Cycles Control the Structural Evolution of Photoresponsive Supramolecular Systems

Angewandte Chemie, EarlyView.
Here, we report a photoswitchable synthetic peptide that, under light energy cycles, exhibits supramolecular polymorphism coupled to darkness‐driven structural self‐selection. We demonstrate that light sustains a transient assembled state in the form of helical nanoribbons, hindering the system from undergoing a transition to the disassembled state ...
Alejandro Méndez‐Ardoy, Nicolas Cissé, Adrian Sanchez‐Fernandez, Patricia Fulias‐Guzmán, Marc C. A. Stuart, Tibor Kudernac, Javier Montenegro   +6 more
wiley   +2 more sources

Prochlorococcus and Synechococcus have evolved different adaptive mechanisms to cope with light and UV stress [PDF]

, 2012
Prochlorococcus and Synechococcus, which numerically dominate vast oceanic areas, are the two most abundant oxygenic phototrophs on Earth. Although they require solar energy for photosynthesis, excess light and associated high UV radiations can induce ...
Christophe eSix, Christophe eBoutte, Six, Christophe, Nicolas Blot, Partensky, Frédéric, Priscillia eGourvil, Mella-Flores, Daniella, Daniella eMella-Flores, Christian Kolowrat, Laurence eGarczarek, Dominique Marie, Le Corguillé, Gildas, Dominique eMarie, Priscillia Gourvil, Gildas eLe Corguillé, Blot, Nicolas, Boutte, Christophe, Gildas Le Corguillé, Garczarek, Laurence, Daniella Mella-Flores, Kolowrat, Christian, Christophe Boutte, Marie, Dominique, Gourvil, Priscillia, Morgane eRatin, Frédéric Partensky, Morgane Ratin, Nicolas eBlot, Ratin, Morgane, Christian eKolowrat, Frédéric ePartensky, Christophe Six, Laurence Garczarek   +32 more
core   +1 more source

Role of Plastid Protein Phosphatase TAP38 in LHCII Dephosphorylation and Thylakoid Electron Flow [PDF]

, 2010
Short-term changes in illumination elicit alterations in thylakoid protein phosphorylation and reorganization of the photosynthetic machinery. Phosphorylation of LHCII, the light-harvesting complex of photosystem II, facilitates its relocation to ...
Leister D., Pesaresi, Paolo, Alexander Hertle, Mathias Pribil, M. Pribil, Leister Dario, Barbato, Roberto, P. Pesaresi, Hertle, Alexander, Leister, Dario, Pesaresi Paolo, R. Barbato, Hertle Alexander, Barbato Roberto, Er Hertle, D. Leister, Pribil M, Roberto Barbato, Dario Leister, Paolo Pesaresi, A. Hertle, Pesaresi P, Pribil, Mathias, Hertle A, Pribil Mathias   +24 more
core   +1 more source

Quality control of Photosystem II: reversible and irreversible protein aggregation decides the fate of Photosystem II under excessive illumination

Frontiers in Plant Science, 2013
In response to excessive light, the thylakoid membranes of higher plant chloroplasts show dynamic changes including the degradation and reassembly of proteins, a change in the distribution of proteins, and large-scale structural changes such as ...
Yasusi eYamamoto, Haruka eHori, Suguru eKai, Tomomi eIshikawa, Atsuki eOhnishi, Nodoka eTsumura, Noriko eMorita   +6 more
doaj   +1 more source