Results 11 to 20 of about 93,335 (307)

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   +3 more sources

“Live-Autoradiography” Technique Reveals Genetic Variation in the Rate of Fe Uptake by Barley Cultivars

open access: yesPlants, 2022
Iron (Fe) is an essential trace element in plants; however, the available Fe in soil solution does not always satisfy the demand of plants. Genetic diversity in the rate of Fe uptake by plants has not been broadly surveyed among plant species or ...
Kyoko Higuchi   +10 more
doaj   +1 more source

The Assembly of Super-Complexes in the Plant Chloroplast

open access: yesBiomolecules, 2021
Increasing evidence has revealed that the enzymes of several biological pathways assemble into larger supramolecular structures called super-complexes. Indeed, those such as association of the mitochondrial respiratory chain complexes play an essential ...
Kezhen Qin   +2 more
doaj   +1 more source

ROS-Driven Oxidative Modification: Its Impact on Chloroplasts-Nucleus Communication

open access: yesFrontiers in Plant Science, 2020
As a light-harvesting organelle, the chloroplast inevitably produces a substantial amount of reactive oxygen species (ROS) primarily through the photosystems.
Chanhong Kim
doaj   +1 more source

Thinking twice about the evolution of photosynthesis [PDF]

open access: yesOpen Biology, 2019
Sam Granick opened his seminal 1957 paper titled ‘Speculations on the origins and evolution of photosynthesis’ with the assertion that there is a constant urge in human beings to seek beginnings (I concur).
Tanai Cardona
doaj   +1 more source

Responses of photosystem to long-term light stress in a typically shade-tolerant species Panax notoginseng

open access: yesFrontiers in Plant Science, 2023
Photosynthetic adaptive strategies vary with the growth irradiance. The potential photosynthetic adaptive strategies of shade-tolerant species Panax notoginseng (Burkill) F. H. Chen to long-term high light and low light remains unclear.
Zhu Cun   +19 more
doaj   +1 more source

The Ability of Cyanobacterial Cells to Restore UV-B Radiation Induced Damage to Photosystem II is Influenced by Photolyase Dependent DNA Repair [PDF]

open access: yes, 2013
Damage of DNA and Photosystem-II are among the most significant effects of UV-B irradiation in photosynthetic organisms. Both damaged DNA and Photosystem-II can be repaired, which represent important defense mechanisms against detrimental UV-B effects ...
Kós, Péter   +4 more
core   +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

Effect of crowding on the electron transfer process from plastocyanin and cytochrome c6 to photosystem I: a comparative study from cyanobacteria to green algae [PDF]

open access: yes, 2011
Plastocyanin and cytochrome c 6, the alternate donor proteins to photosystem I, can be acidic, neutral or basic; the role of electrostatics in their interaction with photosystem I vary accordingly for cyanobacteria, algae and plants.
Hervás Morón, Manuel   +1 more
core   +1 more source

The Plasticity of Photosystem I

open access: yesPlant and Cell Physiology, 2021
Abstract Most of life’s energy comes from sunlight, and thus, photosynthesis underpins the survival of virtually all life forms. The light-driven electron transfer at photosystem I (PSI) is certainly the most important generator of reducing power at the cellular level and thereby largely determines the global amount of enthalpy in living
Michael Hippler, Nathan Nelson
openaire   +2 more sources

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