Understanding/unravelling carotenoid excited singlet states.

Hashimoto, H., Uragami, C., Yukihira, N., Gardiner, A. T. and Cogdell, R. J. (2018) Understanding/unravelling carotenoid excited singlet states. Journal of the Royal Society: Interface, 15(141), 20180026. (doi: 10.1098/rsif.2018.0026) (PMID:29643225)

161092.pdf - Accepted Version



Carotenoids are essential light-harvesting pigments in natural photosynthesis. They absorb in the blue–green region of the solar spectrum and transfer the absorbed energy to (bacterio-)chlorophylls, and thus expand the wavelength range of light that is able to drive photosynthesis. This process is an example of singlet–singlet excitation energy transfer, and carotenoids serve to enhance the overall efficiency of photosynthetic light reactions. The photochemistry and photophysics of carotenoids have often been interpreted by referring to those of simple polyene molecules that do not possess any functional groups. However, this may not always be wise because carotenoids usually have a number of functional groups that induce the variety of photochemical behaviours in them. These differences can also make the interpretation of the singlet excited states of carotenoids very complicated. In this article, we review the properties of the singlet excited states of carotenoids with the aim of producing as coherent a picture as possible of what is currently known and what needs to be learned.

Item Type:Articles
Additional Information:H.H. thanks JSPS KAKENHI, Grant-in-Aids for Basic Research (B) (no. 16H04181) and Scientific Research on Innovative Areas ‘Innovations for Light-Energy Conversion (I4 LEC)’ (nos. 17H06433 and 17H0637) for financial support. R.J.C. and A.T.G. wish to gratefully thank the BBSRC and Photosynthetic Antenna Research Center (PARC), an Energy Frontier Research Center funded by the DOE, Office of Science, Office of Basic Energy Sciences under Award number DE-SC 0001035 for financial support.
Keywords:carotenoids, photosynthesis, singlet states
Glasgow Author(s) Enlighten ID:Cogdell, Professor Richard and Gardiner, Dr Alastair
Authors: Hashimoto, H., Uragami, C., Yukihira, N., Gardiner, A. T., and Cogdell, R. J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Molecular Cell and Systems Biology
Journal Name:Journal of the Royal Society: Interface
Publisher:Royal Society
ISSN (Online):1742-5662
Published Online:11 April 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Journal of the Royal Society Interface 15(141):20180026
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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