Results 31 to 40 of about 68,054 (203)

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

Conservation of core complex subunits shaped the structure and function of photosystem I in the secondary endosymbiont alga Nannochloropsis gaditana [PDF]

open access: yes, 2017
Photosystem I (PSI) is a pigment protein complex catalyzing the light-driven electron transport from plastocyanin to ferredoxin in oxygenic photosynthetic organisms.
Alboresi   +87 more
core   +3 more sources

Structure of photosystem I

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2001
In plants and cyanobacteria, the primary step in oxygenic photosynthesis, the light induced charge separation, is driven by two large membrane intrinsic protein complexes, the photosystems I and II. Photosystem I catalyses the light driven electron transfer from plastocyanin/cytochrome c(6) on the lumenal side of the membrane to ferredoxin/flavodoxin ...
Fromme, P., Jordan, P., Krauß, Norbert
openaire   +3 more sources

Cryo-EM and femtosecond spectroscopic studies provide mechanistic insight into the energy transfer in CpcL-phycobilisomes

open access: yesNature Communications, 2023
Phycobilisomes (PBS) are the major light harvesting complexes of photosynthesis in the cyanobacteria and red algae. CpcL-PBS is a type of small PBS in cyanobacteria that transfers energy directly to photosystem I without the core structure.
Lvqin Zheng   +11 more
doaj   +1 more source

Knock-Out of the Genes Coding for the Rieske Protein and the ATP-Synthase δ-Subunit of Arabidopsis [PDF]

open access: yes, 2003
In Arabidopsis, the nuclear genes PetC and AtpD code for the Rieske protein of the cytochrome b6/f (cyt b6/f) complex and the δ-subunit of the chloroplast ATP synthase (cpATPase), respectively.
Dietzmann, Angela   +8 more
core   +1 more source

Chlorophyll Proteins of Photosystem I [PDF]

open access: yesPlant Physiology, 1980
Data are presented which suggest the existence of a light-harvesting pigment-protein complex which is functionally and structurally associated with photosystem I (PSI) reaction centers. These observations are based on techniques which allow isolation of PSI using minimal concentrations of Triton X-100. Properties of density and self aggregation allowed
J E, Mullet, J J, Burke, C J, Arntzen
openaire   +2 more sources

Electron Donation to Photosystem I [PDF]

open access: yesPlant Physiology, 1980
Electron donation to photosystem I was studied in highly resolved particles from spinach. Divalent cations increased the efficiency of electron donation from spinach plastocyanin to P700(+) through a decrease in the apparent K(m) for plastocyanin.
D J, Davis, D W, Krogmann, A S, Pietro
openaire   +2 more sources

Non-intrusive Assessment of Photosystem II and Photosystem I in Whole Coral Tissues

open access: yesFrontiers in Marine Science, 2017
Reef building corals (phylum Cnidaria) harbor endosymbiotic dinoflagellate algae (genus Symbiodinium) that generate photosynthetic products to fuel their host's metabolism.
Milán Szabó   +10 more
doaj   +1 more source

Structure Insights Into Photosystem I Octamer From Cyanobacteria

open access: yesFrontiers in Microbiology, 2022
The diversity of photosystem oligomers is essential to understanding how photosynthetic organisms adapt to light conditions. Due to its structural and physiological significance, the assembly of the PSI supercomplex has been of great interest recently in
Ming Chen   +11 more
doaj   +1 more source

Light harvesting in photosystem II [PDF]

open access: yesPhotosynthesis Research, 2013
This review focuses on the light-harvesting properties of photosystem I (PSI) and its LHCI outer antenna. LHCI consists of different chlorophyll a/b binding proteins called Lhca's, surrounding the core of PSI. In total, the PSI-LHCI complex of higher plants contains 173 chlorophyll molecules, most of which are there to harvest sunlight energy and to ...
Croce, R., van Amerongen, H.
openaire   +5 more sources

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