A role for β,β-xanthophylls in Arabidopsis UV-B photoprotection

• Published in: Journal of experimental botany Vol. 69; no. 20; pp. 4921 - 4933
• Main Authors: Emiliani, Julia, D'Andrea, Lucio, Lorena Falcone Ferreyra, María, Maulión, Evangelina, Rodriguez, Eduardo, Rodriguez-Concepción, Manuel, Casati, Paula
• Format: Journal Article
• Language: English
• Published: UK Oxford University Press 14.09.2018
• Subjects: abscisic acid; antioxidants; Arabidopsis thaliana; biosynthesis; DNA damage; DNA repair; enzymes; gamma-tocopherol; in vitro studies; irradiation; lighting; lutein; metabolites; mutants; photosynthesis; plastids; radiation resistance; ultraviolet radiation; zeaxanthin; MEP pathway; violaxanthin; xanthophylls; Isoprenoids; UV-B damage; zeaxanthin

Carotenoids have a role in UV-B photoprotection in Arabidopsis thaliana and this requires β,β-xanthophylls, but not other plastidial isoprenoids. Abstract Plastidial isoprenoids, such as carotenoids and tocopherols, are important anti-oxidant metabolites synthesized in plastids from precursors gener...