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Direct observation of the (forbidden) S 1 state in carotenoids
Open accessAbstract
Carotenoids are involved in a variety of biological functions, yet the underlying mechanisms are poorly understood, in part because of the long-standing difficulty in assigning the location of the first excited (S 1 ) state. Here, we present a method for determining the energy of the forbidden S 1 state, on the basis of ultrafast spectroscopy of the short lived level. Femtosecond transient absorption spectra and kinetics of the S 1 → S 2 transition revealed the location of the intermediate level in two carotenoid species involved in the xanthophyll cycle, zeaxanthin and violaxanthin, and yielded surprising implications regarding the mechanism of photoregulation in photosynthesis.
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Citations
Cites
The energy gap law for radiationless transitions in large molecules
Englman, R., & Jortner, J. (1970) · Molecular Physics · doi:10.1080/00268977000100171 · Cited by 2,778
Cited by
Non-Photochemical Quenching. A Response to Excess Light Energy
Müller, P., Li, X.-P., & Niyogi, K. K. (2001) · Plant Physiology · doi:10.1104/pp.125.4.1558 · Cited by 2,840
Ultrafast transient absorption spectroscopy: principles and application to photosynthetic systems
Berera, R., van Grondelle, R., & Kennis, J. T. M. (2009) · Photosynthesis Research · doi:10.1007/s11120-009-9454-y · Cited by 894
Ultrafast Dynamics of Carotenoid Excited States−From Solution to Natural and Artificial Systems
Polívka, T., & Sundström, V. (2004) · Chemical Reviews · doi:10.1021/cr020674n · Cited by 889
Self-citationThe photoprotective molecular switch in the photosystem II antenna
Ruban, A. V., Johnson, M. P., & Duffy, C. D. P. (2012) · Biochimica et Biophysica Acta (BBA) - Bioenergetics · doi:10.1016/j.bbabio.2011.04.007 · Cited by 750
Horton, P., Wentworth, M., & Ruban, A. (2005) · FEBS Letters · doi:10.1016/j.febslet.2005.07.003 · Cited by 320
Metadata
- Authors
- Polívka, T., Herek, J. L., Zigmantas, D., Åkerlund, H.-E., & Sundström, V.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1999-04-27
- Volume
- 96
- Issue
- 9
- Pages
- 4914-4917
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2152295451
- Cited by
- 282
- References
- 1
- FWCI
- 11.45
- Type
- journal article
- Language
- en
- Open access
- green
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- Polívka, T., Herek, J. L., Zigmantas, D., Åkerlund, H.-E., & Sundström, V. (1999). Direct observation of the (forbidden) S 1 state in carotenoids. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.96.9.4914
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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