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Article

The quantitative contribution of different Photosystem II compartments to non-photochemical quenching in Arabidopsis.

Nature communications - 27 Jun 2026

Nicol Lauren, Calabritto Anna, Yao Haidan, Mascoli Vincenzo, Dall'Osto Luca, Bassi Roberto, van Amerongen Herbert, Croce Roberta

Abstract excerpt

Excess excitation energy in the light-harvesting antenna of Photosystem II (PSII) can cause irreversible damage to the photosynthetic apparatus. In periods of high light intensity, a feedback mechanism known as non-photochemical quenching (NPQ) induces the formation of quenchers, which can safely dissipate excess excitation energy as heat. Although quenchers have been identified in more than one compartment of...

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Arabidopsis
Arabidopsis Proteins
Fluorescence
Light
Light-Harvesting Protein Complexes

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Photosystem II Protein Complex

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PMID: 42364995
DOI: 10.1038/s41467-026-74992-z
PMCID: PMC13454433

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