Results 31 to 40 of about 88,762 (345)

Energy transfer in light-harvesting complexes LHCII and CP29 of spinach studied with three pulse echo peak shift and transient grating [PDF]

open access: yes, 2003
Three pulse echo peak shift and transient grating (TG) measurements on the plant light-harvesting complexes LHCII and CP29 are reported. The LHCII complex is by far the most abundant light-harvesting complex in higher plants and fulfills several ...
Krueger, B.P.   +20 more
core   +1 more source

Excitation Energy Transfer and Trapping in Higher Plant Photosystem II Complexes with Different Antenna Sizes [PDF]

open access: yes, 2011
700 cm(-1)) and a slow relaxation of the radical pair to an irreversible state (similar to 150 ps). Somewhat unexpectedly, we had to reduce the energy-transfer and charge-separation rates in complexes with decreasing size to obtain optimal fits.
van Amerongen, H.   +14 more
core   +1 more source

STUDY ON THE STRUCTURAL BASIS OF PERIPHERAL LIGHT HARVESTING COMPLEXES (LH2) IN PURPLE NON-SULPHUR PHOTOSYNTHETIC BACTERIA

open access: yesIndonesian Journal of Chemistry, 2010
Photosynthesis provides an example of a natural process that has been optimized during evolution to harness solar energy efficiently and safely, and finally to use it to produce a carbon-based fuel.
Tatas H.P. Brotosudarmo   +1 more
doaj   +1 more source

Understanding the Changes in the Circular Dichroism of Light Harvesting Complex II upon Varying Its Pigment Composition and Organization [PDF]

open access: yes, 2007
In this work we modeled the circular dichroism (CD) spectrum of LHCII, the main light harvesting antenna of photosystem II of higher plants. Excitonic calculations are performed for a monomeric subunit, taken from the crystal structure of trimeric LHCII ...
van Amerongen, H.   +14 more
core   +1 more source

Molecular mechanism of SRP-dependent light-harvesting protein transport to the thylakoid membrane in plants

open access: yesPhotosynthesis Research, 2018
The light-harvesting chlorophyll a/b binding proteins (LHCP) belong to a large family of membrane proteins. They form the antenna complexes of photosystem I and II and function in light absorption and transfer of the excitation energy to the photosystems.
Dominik Ziehe   +2 more
semanticscholar   +1 more source

Single-photon absorption by single photosynthetic light-harvesting complexes [PDF]

open access: yes, 2018
We provide a unified theoretical approach to the quantum dynamics of absorption of single photons and subsequent excitonic energy transfer in photosynthetic light-harvesting complexes. Our analysis combines a continuous mode ⟨ n ⟩ -photon quantum optical
H. Chan   +5 more
semanticscholar   +1 more source

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

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

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

The chlorosome: a prototype for efficient light harvesting in photosynthesis [PDF]

open access: yes, 2010
Three phyla of bacteria include phototrophs that contain unique antenna systems, chlorosomes, as the principal light-harvesting apparatus. Chlorosomes are the largest known supramolecular antenna systems and contain hundreds of thousands of BChl c/d/e ...
van Amerongen, H.   +12 more
core   +1 more source

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