Results 81 to 90 of about 5,980,835 (209)

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

open access: yes, 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   +33 more
core   +1 more source

Trehalose as a tool for studying the molecular mechanisms of electron transfer in photosynthetic systems

open access: yesFrontiers in Photobiology
In this review, we consider the effects of trehalose on charge transfer processes in three distinct photosynthetic systems under different conditions, namely: (i) the effect of relative hydration of the trehalose glassy matrix on forward and backward ...
Mahir Mamedov   +4 more
doaj   +1 more source

Sustained diurnal stimulation of cyclic electron flow in two tropical tree species Erythrophleum guineense and Khaya ivorensis

open access: yesFrontiers in Plant Science, 2016
The photosystem II (PSII) activity of C3 plants is usually inhibited at noon associated with high light but can be repaired fast in the afternoon. However, the diurnal variation of photosystem I (PSI) activity is unknown.
Wei Huang   +4 more
doaj   +1 more source

Specific degradation of photosystem II D1 protein by a protease (Alr3815) in heterocysts of the cyanobacterium Anabaena sp PCC7120

open access: yes, 2011
Some filamentous cyanobacteria form heterocysts under conditions lacking combined nitrogen for nitrogen fixation. Photosystem II is removed from heterocyst during the process of cell differentiation.
Zhao, JD, Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China   +4 more
core  

The functional role of protein dynamics in photosynthetic reaction centers investigated by elastic and quasielastic neutron scattering

open access: yesEPJ Web of Conferences, 2015
This short review summarizes our current knowledge about the functional relevance of protein dynamics in photosynthetic reaction centers. In the case of Photosystem II membrane fragments, elastic and quasielastic neutron scattering experiments reveal a ...
Pieper Jörg
doaj   +1 more source

Applications of Delayed Fluorescence from Photosystem II

open access: yesSensors, 2013
While photosystem II (PSII) of plants utilizes light for photosynthesis, part of the absorbed energy may be reverted back and dissipated as long-term fluorescence (delayed fluorescence or DF). Because the generation of DF is coupled with the processes of
Ya Guo, Jinglu Tan
doaj   +1 more source

From Photosystem I to Photosystem II

open access: yesN/A, 2014
Ik heb gericht op de studie van de fotosynthetische complexen in Chlamydomonas reinhardtii. Het doel was om uitgebreide structurele en functionele informatie over Fotosysteem I en Fotosysteem II te krijgen en om hun flexibiliteit in verschillende omgevingsomstandigheden te testen.
openaire   +2 more sources

A two-component regulatory system in transcriptional control of photosystem stoichiometry: redox-dependent and sodium ion-dependent phosphoryl transfer from cyanobacterial histidine kinase Hik2 to response regulators Rre1 and RppA

open access: yesFrontiers in Plant Science, 2016
I hereby submit the above-titled manuscript for publication in Frontiers in Plant Science. The research reported is original and novel. No part of it is submitted for publication elsewhere.We report on regulation and interactions of a unique histidine ...
Iskander Mohamed Ibrahim   +2 more
doaj   +1 more source

Isolation and biochemical characterisation of monomeric and dimeric photosystem II complexes from spinach and their relevance to the organisation of photosystem II in vivo [PDF]

open access: yes, 1997
Membranes enriched in photosystem II were isolated from spinach and further solubilised using n octyl β-D-glucopyranoside (OctGlc) and n-dodecyl β-D-maltoside (DodGlc2). The OctGlc preparation had high rates of oxygen evolution and when subjected to size-
Barber, J   +11 more
core   +1 more source

Selenium induced lower respiratory potential in Glycine max (L.) Merr.

open access: yesActa Agriculturae Slovenica, 2010
Effect of selenium (Se) was studied in soybean (Glycine max (L.) Merr.) cv. Olna in Ljubljana, Slovenia. Se was added to plants as foliary spraying. Quantum yield of photosystem II (PSII) and respiratory potential measured as ETS activity of mitochondria
Špela MECHORA, Mateja GERM
doaj   +1 more source

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