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Evolutionary origin and photoprotective role of Lhcx in the centric diatom Chaetoceros gracilis.

Plant physiology - 4 Aug 2026

Kumazawa Minoru, Akimoto Seiji, Takabayashi Atsushi, Imaizumi Ko, Tsuji Shoko, Hasegawa Hazuki, Sakurai Atsushi, Imamura Sousuke, Ishikawa Noriko, Inoue-Kashino Natsuko, Kashino Yasuhiro, Ifuku Kentaro

Abstract excerpt

Diatoms are red-lineage algae that utilize the light-harvesting complex (LHC) subfamily Lhcx for photoprotection via nonphotochemical quenching (NPQ); however, its evolutionary origin and molecular mechanism remain poorly understood. Through molecular phylogenetic analysis, we show that diatom Lhcxs and green algal Lhcsrs evolved from a common ancestor, with green plants subsequently acquiring them via horizontal...

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Biological Evolution
Diatoms
Evolution, Molecular
Light
Light-Harvesting Protein Complexes

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Photosystem II Protein Complex

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PMID: 42496158
DOI: 10.1093/plphys/kiag539

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026.

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