Results 11 to 20 of about 40,321 (291)

Photosystem II assembly from scratch [PDF]

open access: yesFrontiers in Plant Science, 2016
Construction of a functional Photosystem II (PSII) in cyanobacteria and chloroplasts depends on the action of auxiliary factors, which transiently interact with PSII intermediates during assembly. In addition to a common PSII structure and a conserved set of PSII assembly factors, cyanobacteria, and higher plants have evolved additional, clade-specific
Thilo eRühle   +2 more
doaj   +6 more sources

Photosystem II: evolutionary perspectives [PDF]

open access: greenPhilosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2003
Based on the current model of its structure and function, photosystem II (PSII) seems to have evolved from an ancestor that was homodimeric in terms of its protein core and contained a special pair of chlorophylls as the photo–oxidizable cofactor.
A. William Rutherford, Peter Faller
openalex   +3 more sources

A Hard Day's Night: Diatoms continue recycling Photosystem II in the dark

open access: yesFrontiers in Marine Science, 2016
Marine diatoms are photosynthetic, and thrive in environments where light fluctuates. Like all oxygenic photosynthetic organisms diatoms face a light-dependent inactivation of the Photosystem II complexes that photooxidize water to generate biosynthetic
Gang Li   +4 more
doaj   +1 more source

Impact of energy limitations on function and resilience in long-wavelength Photosystem II

open access: yeseLife, 2022
Photosystem II (PSII) uses the energy from red light to split water and reduce quinone, an energy-demanding process based on chlorophyll a (Chl-a) photochemistry. Two types of cyanobacterial PSII can use chlorophyll d (Chl-d) and chlorophyll f (Chl-f) to
Stefania Viola   +9 more
doaj   +1 more source

Identification and roles of Photosystem II assembly, stability, and repair factors in Arabidopsis

open access: yesFrontiers in Plant Science, 2016
Photosystem II (PSII) is a multi-component pigment-protein complex that is responsible for water splitting, oxygen evolution, and plastoquinone reduction.
Yan eLu
doaj   +1 more source

Chloramphenicol mediates superoxide production in Photosystem II and enhances its photodamage in isolated membrane particles

open access: yesFrontiers in Plant Science, 2016
Chloramphenicol is an inhibitor of protein synthesis, which is frequently used to decouple photodamage and protein synthesis dependent repair of Photosystem II during the process of photoinhibition.
Ateeq Ur Rehman   +2 more
doaj   +1 more source

Light variability illuminates niche-partitioning among marine Picocyanobacteria. [PDF]

open access: yesPLoS ONE, 2007
Prochlorococcus and Synechococcus picocyanobacteria are dominant contributors to marine primary production over large areas of the ocean. Phytoplankton cells are entrained in the water column and are thus often exposed to rapid changes in irradiance ...
Christophe Six   +3 more
doaj   +1 more source

Quality control of Photosystem II: the mechanisms for avoidance and tolerance of light and heat stresses are closely linked to membrane fluidity of the thylakoids

open access: yesFrontiers in Plant Science, 2016
When oxygenic photosynthetic organisms are exposed to excessive light and/or heat, Photosystem II is damaged and electron transport is blocked. In these events, reactive oxygen species, endogenous radicals and lipid peroxidation products generated by ...
Yasusi Yamamoto
doaj   +1 more source

Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species

open access: yesPlants, 2021
In the face of rising salinity along coastal regions and in irrigated areas, molecular breeding of tolerant crops and reforestation of exposed areas using tolerant woody species is a two-way strategy.
Hazar Balti   +3 more
doaj   +1 more source

Proton-mediated photoprotection mechanism in photosystem II

open access: yesFrontiers in Plant Science, 2022
Photo-induced charge separation, which is terminated by electron transfer from the primary quinone QA to the secondary quinone QB, provides the driving force for O2 evolution in photosystem II (PSII).
Yu Sugo   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy