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Article

Different roles of alpha- and beta-branch xanthophylls in photosystem assembly and photoprotection.

The Journal of biological chemistry - 30 Nov 2007

Dall'Osto Luca, Fiore Alessia, Cazzaniga Stefano, Giuliano Giovanni, Bassi Roberto

Abstract excerpt

Xanthophylls (oxygenated carotenoids) are essential components of the plant photosynthetic apparatus, where they act in photosystem assembly, light harvesting, and photoprotection. Nevertheless, the specific function of individual xanthophyll species awaits complete elucidation. In this work, we analyze the photosynthetic phenotypes of two newly isolated Arabidopsis mutants in carotenoid biosynthesis containing...

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PMID: 17913714
DOI: 10.1074/jbc.M704729200

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Different roles of alpha- and beta-branch xanthophylls in photosystem assembly and photoprotection.PMID 17913714Read ↗

Differential Roles of Carotenes and Xanthophylls in Photosystem I Photoprotection.Semantic proximity Read ↗

A quadruple mutant of Arabidopsis reveals a β-carotene hydroxylation activity for LUT1/CYP97C1 and a regulatory role of xanthophylls on determination of the PSI/PSII ratio.Semantic proximity Read ↗

Altered xanthophyll compositions adversely affect chlorophyll accumulation and nonphotochemical quenching in Arabidopsis mutants.Semantic proximity Read ↗

The Arabidopsis nox mutant lacking carotene hydroxylase activity reveals a critical role for xanthophylls in photosystem I biogenesis.Semantic proximity Read ↗

Effects of altered α- and β-branch carotenoid biosynthesis on photoprotection and whole-plant acclimation of Arabidopsis to photo-oxidative stress.Semantic proximity Read ↗

The Arabidopsis szl1 mutant reveals a critical role of β-carotene in photosystem I photoprotection.Semantic proximity Read ↗

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Zeaxanthin has enhanced antioxidant capacity with respect to all other xanthophylls in Arabidopsis leaves and functions independent of binding to PSII antennae.Semantic proximity Read ↗

Role of xanthophylls in light harvesting in green plants: a spectroscopic investigation of mutant LHCII and Lhcb pigment-protein complexes.Semantic proximity Read ↗

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