Results 31 to 40 of about 37,140 (299)

Photorespiration Enhances Acidification of the Thylakoid Lumen, Reduces the Plastoquinone Pool, and Contributes to the Oxidation of P700 at a Lower Partial Pressure of CO2 in Wheat Leaves

open access: yesPlants, 2020
The oxidation of P700 in photosystem I (PSI) is a robust mechanism that suppresses the production of reactive oxygen species. We researched the contribution of photorespiration to the oxidation of P700 in wheat leaves.
Shinya Wada   +2 more
doaj   +1 more source

Diversity Among Cyanobacterial Photosystem I Oligomers

open access: yesFrontiers in Microbiology, 2022
Unraveling the oligomeric states of the photosystem I complex is essential to understanding the evolution and native mechanisms of photosynthesis. The molecular composition and functions of this complex are highly conserved among cyanobacteria, algae ...
Ming Chen   +10 more
doaj   +1 more source

Photosynthetic Light Harvesting and Thylakoid Organization in a CRISPR/Cas9 Arabidopsis Thaliana LHCB1 Knockout Mutant

open access: yesFrontiers in Plant Science, 2022
Light absorbed by chlorophylls of Photosystems II and I drives oxygenic photosynthesis. Light-harvesting complexes increase the absorption cross-section of these photosystems.
Hamed Sattari Vayghan   +10 more
doaj   +1 more source

Mutational analysis of photosystem I of Synechocystis sp. PCC 6803: the role of four conserved aromatic residues in the j-helix of PsaB. [PDF]

open access: yesPLoS ONE, 2011
Photosystem I is the light-driven plastocyanin-ferredoxin oxidoreductase in the photosynthetic electron transfer of cyanobacteria and plants. Two histidyl residues in the symmetric transmembrane helices A-j and B-j provide ligands for the P700 ...
Wu Xu   +6 more
doaj   +1 more source

How to tune the absorption spectrum of chlorophylls to enable better use of the available solar spectrum [PDF]

open access: yesPeerJ Physical Chemistry, 2022
Photon capture by chlorophylls and other chromophores in light-harvesting complexes and photosystems is the driving force behind the light reactions of photosynthesis.
Pedro J. Silva   +2 more
doaj   +2 more sources

Photoinhibition of photosystem I [PDF]

open access: yesPhysiologia Plantarum, 2010
The photoinhibition of Photosystem I (PSI) drew less attention compared with that of Photosystem II (PSII). This could be ascribed to several reasons, e.g. limited combinations of plant species and environmental conditions that cause PSI photoinhibition, the non‐regulatory aspect of PSI photoinhibition, and methodological difficulty to determine the ...
openaire   +2 more sources

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

open access: yesPhotosynthetica, 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

The RUBISCO to Photosystem II Ratio Limits the Maximum Photosynthetic Rate in Picocyanobacteria

open access: yesLife, 2015
Marine Synechococcus and Prochlorococcus are picocyanobacteria predominating in subtropical, oligotrophic marine environments, a niche predicted to expand with climate change.
Jackie K. Zorz   +5 more
doaj   +1 more source

Cadmium Caused Different Toxicity to Photosystem I and Photosystem II of Freshwater Unicellular Algae Chlorella pyrenoidosa (Chlorophyta)

open access: yesToxics, 2022
Heavy metals such as Cd pose environmental problems and threats to a variety of organisms. The effects of cadmium (Cd) on the growth and activities of photosystem I (PSI) and photosystem II (PSII) of Chlorella pyrenoidosa were studied. The growth rate of
Shuzhi Wang   +4 more
doaj   +1 more source

Cyanobacterial Acclimation to Photosystem I or Photosystem II Light [PDF]

open access: yesPlant Physiology, 1986
The organization and function of the photochemical apparatus of Synechococcus 6301 was investigated in cells grown under yellow and red light regimes. Broadband yellow illumination is absorbed preferentially by the phycobilisome (PBS) whereas red light is absorbed primarily by the chlorophyll (Chl) pigment beds.
A, Manodori, A, Melis
openaire   +2 more sources

Home - About - Disclaimer - Privacy