Results 31 to 40 of about 2,381 (181)

Increasing levels of crude protein in multiple supplements for grazing beef heifers in rainy season

open access: yesSemina: Ciências Agrárias, 2015
The objective was to evaluate the effect of multiple supplements with differents levels of crude protein (CP) or mineral supplements on the nutritional parameters and performance of beef heifers grazing Uruchloa decumbens in the rainy season.
Lívia Vieira de Barros   +9 more
doaj   +1 more source

Molecular Evolution of Far-Red Light-Acclimated Photosystem II

open access: yesMicroorganisms, 2022
Cyanobacteria are major contributors to global carbon fixation and primarily use visible light (400−700 nm) to drive oxygenic photosynthesis. When shifted into environments where visible light is attenuated, a small, but highly diverse and widespread ...
Christopher J. Gisriel   +3 more
doaj   +1 more source

Critical assessment of protein cross-linking and molecular docking: an updated model for the interaction between photosystem II and Psb27

open access: yesFrontiers in Plant Science, 2016
Photosystem II (PSII) is a large membrane-protein complex composed of about 20 subunits and various cofactors, which mediates the light-driven oxidation of water and reduction of plastoquinone, and is part of the photosynthetic electron transfer chain ...
Kai U Cormann   +2 more
doaj   +1 more source

A protein phosphorylation threshold for functional stacking of plant photosynthetic membranes. [PDF]

open access: yesPLoS ONE, 2010
Phosphorylation of photosystem II (PSII) proteins affects macroscopic structure of thylakoid photosynthetic membranes in chloroplasts of the model plant Arabidopsis.
Rikard Fristedt   +2 more
doaj   +1 more source

High light-induced changes in whole-cell proteomic profile and its correlation with the organization of thylakoid super-complex in cyclic electron transport mutants of Chlamydomonas reinhardtii

open access: yesFrontiers in Plant Science, 2023
Light and nutrients are essential components of photosynthesis. Activating the signaling cascades is critical in starting adaptive processes in response to high light.
Ranay Mohan Yadav   +4 more
doaj   +1 more source

Evidence That the PsbK Polypeptide Is Associated with the Photosystem II Core Antenna Complex CP43 [PDF]

open access: yesJournal of Biological Chemistry, 2003
PsbK is encoded by the chloroplast psbK gene and is one of the small polypeptides of photosystem II (PSII). This polypeptide is required for accumulation of the PSII complex. In the present study, we generated an antibody against recombinant mature PsbK of Chlamydomonas and used it in Western blots to localize PsbK in the PSII core complex.
Ikuyo, Sugimoto, Yuichiro, Takahashi
openaire   +2 more sources

Dissipation of excess energy triggered by blue light in cyanobacteria with CP43′ (isiA)

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2004
The chlorophyll-protein CP43' (isiA gene) induced by stress conditions in cyanobacteria is shown to serve as an antenna for Photosystem II (PSII), in addition to its known role as an antenna for Photosystem I (PSI). At high light intensity, this antenna is converted to an efficient trap for chlorophyll excitations that protects system II from photo ...
Cadoret, Jean-Charles   +5 more
openaire   +3 more sources

Spectroscopic Study of the CP43′ Complex and the PSI–CP43′ Supercomplex of the Cyanobacterium Synechocystis PCC 6803

open access: yes, 2016
The PSI–CP43′ supercomplex of the cyanobacterium Synechocystis PCC 6803, grown under iron-starvation conditions, consists of a trimeric core Photosystem I (PSI) complex and an outer ring of 18 CP43′ light-harvesting complexes.
Bhanu Neupane (1913953)   +6 more
core   +1 more source

Overexpression of the protein disulfide isomerase AtCYO1 in chloroplasts slows dark-induced senescence in Arabidopsis

open access: yesBMC Plant Biology, 2018
Background Chlorophyll breakdown is the most obvious sign of leaf senescence. The chlorophyll catabolism pathway and the associated proteins/genes have been identified in considerable detail by genetic approaches combined with stay-green phenotyping ...
Jun Tominaga   +10 more
doaj   +1 more source

Sodium lignosulfonate improves shoot growth of Oryza sativa via enhancement of photosynthetic activity and reduced accumulation of reactive oxygen species

open access: yesScientific Reports, 2021
Lignosulfonate (LS) is a by-product obtained during sulfite pulping process and is commonly used as a growth enhancer in plant growth. However, the underlying growth promoting mechanism of LS on shoot growth remains largely unknown. Hence, this study was
Andrew De-Xian Kok   +7 more
doaj   +1 more source

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