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Andrew A. Pascal
Researcher at Université Paris-Saclay
Publications - 46
Citations - 3386
Andrew A. Pascal is an academic researcher from Université Paris-Saclay. The author has contributed to research in topics: Photosystem II & Neoxanthin. The author has an hindex of 23, co-authored 43 publications receiving 3066 citations. Previous affiliations of Andrew A. Pascal include Max Planck Society & Imperial College London.
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Journal ArticleDOI
Identification of a mechanism of photoprotective energy dissipation in higher plants
Alexander V. Ruban,Rudi Berera,Cristian Ilioaia,Cristian Ilioaia,Ivo H. M. van Stokkum,John T. M. Kennis,Andrew A. Pascal,Herbert van Amerongen,Bruno Robert,Peter Horton,Rienk van Grondelle +10 more
TL;DR: It is experimentally demonstrated that a change in conformation of LHCII occurs in vivo, which opens a channel for energy dissipation by transfer to a bound carotenoid, suggesting that this is the principal mechanism of photoprotection.
Journal ArticleDOI
Molecular basis of photoprotection and control of photosynthetic light-harvesting
Andrew A. Pascal,Zhenfeng Liu,Koen Broess,Bart van Oort,Herbert van Amerongen,Chao Wang,Peter Horton,Bruno Robert,Wenrui Chang,Alexander V. Ruban +9 more
TL;DR: A spectroscopic analysis of this crystal form is presented, and the specific changes in configuration of its pigment population that give LHCII the intrinsic capability to regulate energy flow are identified, which provides a molecular basis for understanding the control of photosynthetic light-harvesting.
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The Effects of Illumination on the Xanthophyll Composition of the Photosystem II Light-Harvesting Complexes of Spinach Thylakoid Membranes.
TL;DR: The xanthophyll composition of the light-harvesting chlorophyll a/b proteins of photosystem II (LHCII) has been determined for spinach leaves after dark adaptation and following illumination under conditions optimized for conversion of violaxanthin into zeaxanth in LHCII prepared by three different isolation procedures.
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Elevated Zeaxanthin Bound to Oligomeric LHCII Enhances the Resistance of Arabidopsis to Photooxidative Stress by a Lipid-protective, Antioxidant Mechanism
Matthew P. Johnson,Michel Havaux,Christian Triantaphylidès,Brigitte Ksas,Andrew A. Pascal,Bruno Robert,Paul A. Davison,Alexander V. Ruban,Peter Horton +8 more
TL;DR: It is suggested that the protein/lipid interface is the active site for the antioxidant activity of zeaxanthin, which mediates stress tolerance by the protection of bound lipids in transformed plants.
Journal ArticleDOI
Excitation-energy quenching in aggregates of the LHC II chlorophyll-protein complex: a time-resolved fluorescence study
TL;DR: In this paper, the ΔpH-dependent quenching ( q E ) observed in intact thylakoid membranes was investigated in aggregated LHC II in a semi-crystalline aggregated state, indicating the presence of a highly efficient energy-quenching process.