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Synergic photoprotection of phenolic compounds present in tomato fruit cuticle : a spectroscopic investigation in solution
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González Moreno, Ana, Woolley, Jack Matthew, Domínguez, Eva, de Cózar, Abel, Heredia, Antonio and Stavros, Vasilios G. (2023) Synergic photoprotection of phenolic compounds present in tomato fruit cuticle : a spectroscopic investigation in solution. Physical Chemistry Chemical Physics, 25 (18). pp. 12791-12799. doi:10.1039/d3cp00630a ISSN 1463-9076.
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Official URL: https://doi.org/10.1039/d3cp00630a
Abstract
Coumaric acids and flavonoids play pivotal roles in protecting plants against ultraviolet radiation (UVR) exposure. In this work, we focus our photoprotection studies on p-coumaric acid and the flavonoid naringenin chalcone. Photoprotection is well-understood in p-coumaric acid; in contrast, information surrounding photoprotection in naringenin chalcone is lacking. Additionally, and vitally, how these two species work in unison to provide photoprotection across the UV-B and UV-A is unknown. Herein, we employ transient absorption spectroscopy together with steady-state irradiation studies to unravel the photoprotection mechanism of a solution of p-coumaric acid and naringenin chalcone. We find that the excited state dynamics of p-coumaric acid are significantly altered in the presence of naringenin chalcone. This finding concurs with quenching of the p-coumaric acid fluorescence with increasing concentration of naringenin chalcone. We propose a Förster energy transfer mechanism is operative via the formation of dipole–dipole interactions between p-coumaric acid and naringenin chalcone. To our knowledge, this is the first demonstration in plants of a synergic effect between two classes of phenolics to bypass the potentially damaging effects of UVR.
Item Type: | Journal Article | |||||||||||||||||||||||||||
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Subjects: | Q Science > QK Botany | |||||||||||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | |||||||||||||||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Plants -- Effect of ultraviolet radiation on, Plants -- Effect of light on, Flavonoids, Plant pigments | |||||||||||||||||||||||||||
Journal or Publication Title: | Physical Chemistry Chemical Physics | |||||||||||||||||||||||||||
Publisher: | Royal Society of Chemistry | |||||||||||||||||||||||||||
ISSN: | 1463-9076 | |||||||||||||||||||||||||||
Official Date: | 11 April 2023 | |||||||||||||||||||||||||||
Dates: |
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Volume: | 25 | |||||||||||||||||||||||||||
Number: | 18 | |||||||||||||||||||||||||||
Page Range: | pp. 12791-12799 | |||||||||||||||||||||||||||
DOI: | 10.1039/d3cp00630a | |||||||||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||||||||
Date of first compliant deposit: | 8 June 2023 | |||||||||||||||||||||||||||
Date of first compliant Open Access: | 12 June 2023 | |||||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
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