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Excited state dynamics of the carotenoid peridinin

Polivka, Tomas LU ; Zigmantas, Donatas LU orcid ; Hiller, R-G and Sundström, Villy LU (2004) p.445-452
Abstract

Carotenoids play a number of roles in living organisms. In addition to their well-know light-harvesting function in photosynthesis, they have also photoprotective and antioxidative functions in various physiological systems. Studies of dynamics of carotenoid excited states have established the following scheme: after excitation of a carotenoid to its S2 state (1Bu+), a fast relaxation to the Si state (2Ag-) occurs on a time scale of 50-300 fs. The S1 state relaxes to its ground state S0 on the time scale of 1-300 ps. Peridinin is a highly substituted carotenoid occurring in some dinoflagellates where it is the principle carotenoid of the water soluble light-harvesting peridinin-chlorophyll-protein (PCP), whose structure has been... (More)

Carotenoids play a number of roles in living organisms. In addition to their well-know light-harvesting function in photosynthesis, they have also photoprotective and antioxidative functions in various physiological systems. Studies of dynamics of carotenoid excited states have established the following scheme: after excitation of a carotenoid to its S2 state (1Bu+), a fast relaxation to the Si state (2Ag-) occurs on a time scale of 50-300 fs. The S1 state relaxes to its ground state S0 on the time scale of 1-300 ps. Peridinin is a highly substituted carotenoid occurring in some dinoflagellates where it is the principle carotenoid of the water soluble light-harvesting peridinin-chlorophyll-protein (PCP), whose structure has been resolved to 2.0 A. The PCP complex exhibits an exceptional stoichiometry of 8 peridinin and 2 chlorophyll a (Chl-a) molecules. This, together with the unusual carotenoid structure, has initiated several studies focusing on spectroscopic properties of peridinin that revealed unique photo-physical properties of peridinin, are discussed in this chapter.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Femtochemistry and Femtobiology : Ultrafast Events in Molecular Science VIth International Conference on Femtochemistry Maison de la Chimie, Paris, France July 6-10, 2003 - Ultrafast Events in Molecular Science VIth International Conference on Femtochemistry Maison de la Chimie, Paris, France July 6-10, 2003
editor
Martin, Monique M and Hynes, James T
pages
8 pages
publisher
Elsevier
external identifiers
  • wos:000222945300087
  • scopus:84961113574
  • scopus:85143933532
ISBN
9780444516565
0-444-51656-5
DOI
10.1016/B978-044451656-5/50087-6
language
English
LU publication?
yes
id
cd51c4f7-68e1-4755-982d-26f8442b6db0 (old id 530018)
date added to LUP
2016-04-04 10:12:59
date last changed
2025-10-27 22:42:10
@inbook{cd51c4f7-68e1-4755-982d-26f8442b6db0,
  abstract     = {{<p>Carotenoids play a number of roles in living organisms. In addition to their well-know light-harvesting function in photosynthesis, they have also photoprotective and antioxidative functions in various physiological systems. Studies of dynamics of carotenoid excited states have established the following scheme: after excitation of a carotenoid to its S2 state (1Bu+), a fast relaxation to the Si state (2Ag-) occurs on a time scale of 50-300 fs. The S1 state relaxes to its ground state S0 on the time scale of 1-300 ps. Peridinin is a highly substituted carotenoid occurring in some dinoflagellates where it is the principle carotenoid of the water soluble light-harvesting peridinin-chlorophyll-protein (PCP), whose structure has been resolved to 2.0 A. The PCP complex exhibits an exceptional stoichiometry of 8 peridinin and 2 chlorophyll a (Chl-a) molecules. This, together with the unusual carotenoid structure, has initiated several studies focusing on spectroscopic properties of peridinin that revealed unique photo-physical properties of peridinin, are discussed in this chapter.</p>}},
  author       = {{Polivka, Tomas and Zigmantas, Donatas and Hiller, R-G and Sundström, Villy}},
  booktitle    = {{Femtochemistry and Femtobiology : Ultrafast Events in Molecular Science VIth International Conference on Femtochemistry Maison de la Chimie, Paris, France July 6-10, 2003}},
  editor       = {{Martin, Monique M and Hynes, James T}},
  isbn         = {{9780444516565}},
  language     = {{eng}},
  pages        = {{445--452}},
  publisher    = {{Elsevier}},
  title        = {{Excited state dynamics of the carotenoid peridinin}},
  url          = {{http://dx.doi.org/10.1016/B978-044451656-5/50087-6}},
  doi          = {{10.1016/B978-044451656-5/50087-6}},
  year         = {{2004}},
}