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Title: The Electronic Structure of Lutein 2 Is Optimized for Light Harvesting in Plants

Abstract

Green plants capture light that spans the visible solar spectrum. A broad spectral range is required for sufficient absorption, which means that energy must be funneled rapidly and efficiently downhill to drive charge separation and water splitting. Carotenoids, the accessory pigments in photosynthesis, play light harvesting, photoprotective, and structural roles. Understanding these roles is challenging because their energetics are highly sensitive to their environment. In this work, we discover that a single carotenoid in the major antenna complex of green plants (LHCII) serves as the nexus of light harvesting by accumulating energy and transferring it through a debated dark state. Lastly, these photophysics reveal how plants expand their capacity to capture and utilize solar energy.

Authors:
; ; ;
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; National Science Foundation (NSF)
OSTI Identifier:
1604802
Alternate Identifier(s):
OSTI ID: 1594177
Grant/Contract Number:  
SC0018097; CHE-1740645; 675006-SE2B
Resource Type:
Published Article
Journal Name:
Chem
Additional Journal Information:
Journal Name: Chem Journal Volume: 5 Journal Issue: 3; Journal ID: ISSN 2451-9294
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; photosynthetic light harvesting; light-harvesting complex II; two-dimensional electronic spectroscopy; carotenoids; energy transfer

Citation Formats

Son, Minjung, Pinnola, Alberta, Bassi, Roberto, and Schlau-Cohen, Gabriela S. The Electronic Structure of Lutein 2 Is Optimized for Light Harvesting in Plants. United States: N. p., 2019. Web. https://doi.org/10.1016/j.chempr.2018.12.016.
Son, Minjung, Pinnola, Alberta, Bassi, Roberto, & Schlau-Cohen, Gabriela S. The Electronic Structure of Lutein 2 Is Optimized for Light Harvesting in Plants. United States. https://doi.org/10.1016/j.chempr.2018.12.016
Son, Minjung, Pinnola, Alberta, Bassi, Roberto, and Schlau-Cohen, Gabriela S. Fri . "The Electronic Structure of Lutein 2 Is Optimized for Light Harvesting in Plants". United States. https://doi.org/10.1016/j.chempr.2018.12.016.
@article{osti_1604802,
title = {The Electronic Structure of Lutein 2 Is Optimized for Light Harvesting in Plants},
author = {Son, Minjung and Pinnola, Alberta and Bassi, Roberto and Schlau-Cohen, Gabriela S.},
abstractNote = {Green plants capture light that spans the visible solar spectrum. A broad spectral range is required for sufficient absorption, which means that energy must be funneled rapidly and efficiently downhill to drive charge separation and water splitting. Carotenoids, the accessory pigments in photosynthesis, play light harvesting, photoprotective, and structural roles. Understanding these roles is challenging because their energetics are highly sensitive to their environment. In this work, we discover that a single carotenoid in the major antenna complex of green plants (LHCII) serves as the nexus of light harvesting by accumulating energy and transferring it through a debated dark state. Lastly, these photophysics reveal how plants expand their capacity to capture and utilize solar energy.},
doi = {10.1016/j.chempr.2018.12.016},
journal = {Chem},
number = 3,
volume = 5,
place = {United States},
year = {2019},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.chempr.2018.12.016

Citation Metrics:
Cited by: 14 works
Citation information provided by
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Works referencing / citing this record:

Interplay between structural hierarchy and exciton diffusion in artificial light harvesting
journal, October 2019


Charge transfer from the carotenoid can quench chlorophyll excitation in antenna complexes of plants
journal, January 2020