Results 21 to 30 of about 26,665 (264)

Antenna Modification in a Fast-Growing Cyanobacterium Synechococcus elongatus UTEX 2973 Leads to Improved Efficiency and Carbon-Neutral Productivity

open access: yesMicrobiology Spectrum, 2023
Our planet is sustained by sunlight, the primary energy source made accessible to all life forms by photoautotrophs. Photoautotrophs are equipped with light-harvesting complexes (LHCs) that enable efficient capture of solar energy, particularly when ...
Annesha Sengupta   +4 more
doaj   +1 more source

From isolated light-harvesting complexes to the thylakoid membrane: a single-molecule perspective

open access: yesNanophotonics, 2018
The conversion of solar radiation to chemical energy in plants and green algae takes place in the thylakoid membrane. This amphiphilic environment hosts a complex arrangement of light-harvesting pigment-protein complexes that absorb light and transfer ...
Gruber J. Michael   +3 more
doaj   +1 more source

Recent advances in single-molecule spectroscopy studies on light-harvesting processes in oxygenic photosynthesis

open access: yesBiophysics and Physicobiology, 2022
Photosynthetic light-harvesting complexes (LHCs) play a crucial role in concentrating the photon energy from the sun that otherwise excites a typical pigment molecule, such as chlorophyll-a, only several times a second.
Toru Kondo, Yutaka Shibata
doaj   +1 more source

Metal-Enhanced Fluorescence of Chlorophylls in Light-Harvesting Complexes Coupled to Silver Nanowires

open access: yesThe Scientific World Journal, 2013
We investigate metal-enhanced fluorescence of peridinin-chlorophyll protein coupled to silver nanowires using optical microscopy combined with spectrally and time-resolved fluorescence techniques.
Dorota Kowalska   +6 more
doaj   +1 more source

Bio-inspired building blocks for all-organic metamaterials from visible to near-infrared

open access: yesNanophotonics, 2023
Light-harvesting complexes in natural photosynthetic systems, such as those in purple bacteria, consist of photo-reactive chromophores embedded in densely packed “antenna” systems organized in well-defined nanostructures.
Holder Samuel Thomas   +5 more
doaj   +1 more source

Carotenoid-dependent singlet oxygen photogeneration in light-harvesting complex 2 of Ectothiorhodospira haloalkaliphila leads to the formation of organic hydroperoxides and damage to both pigments and protein matrix [PDF]

open access: yesPeerJ
Earlier, it was suggested that carotenoids in light-harvesting complexes 2 (LH2) can generate singlet oxygen, further oxidizing bacteriochlorophyll to 3-acetyl-chlorophyll.
Denis Yanykin   +3 more
doaj   +2 more sources

Dynamic Changes in the Thylakoid Proteome of Cyanobacteria during Light-Regulated Thylakoid Membrane Development

open access: yesPlants, 2023
Cyanobacteria were among the oldest organisms to undertake oxygenic photosynthesis and have an essential impact on the atmosphere and carbon/nitrogen cycles on the planet.
Fang Huang   +5 more
doaj   +1 more source

Light quality, oxygenic photosynthesis and more

open access: yesPhotosynthetica, 2022
Oxygenic photosynthesis takes place in thylakoid membranes (TM) of cyanobacteria, algae, and higher plants. It begins with light absorption by pigments in large (modular) assemblies of pigment-binding proteins, which then transfer excitation energy to ...
D. LAZAR   +3 more
doaj   +1 more source

Acyl lipids in the supramolecular chlorophyll-protein complexes of photosystems - isolation artifacts or integral components regulating their structure and functions?

open access: yesActa Societatis Botanicorum Poloniae, 2014
The precise nature of interactions between the chloropnyll-protein complexes related to photosystem I or photosystem II and the acyl lipids in the thylakoid membranes is not yet fully elucidated.
Zbigniew Krupa
doaj   +1 more source

The structure of membrane crystals of the light-harvesting chlorophyll a/b protein complex. [PDF]

open access: yesThe Journal of cell biology, 1983
Membrane crystals of the light-harvesting chlorophyll a/b protein complex from pea chloroplasts were investigated using electron microscopy and image analysis. The membrane crystals formed upon precipitation of the detergent-solubilized complex with mono- and divalent cations in the presence of small amounts of Triton X-100.
Kühlbrandt, W. ; https://orcid.org/0000-0002-2013-4810   +2 more
openaire   +3 more sources

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