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APX2 Is an Ascorbate Peroxidase-Related Protein that Regulates the Levels of Plastocyanin in Chlamydomonas.

Plant & cell physiology - 14 May 2024

Caccamo Anna, Vega de Luna Félix, Misztak Agnieszka E, Pyr Dit Ruys Sébastien, Vertommen Didier, Cardol Pierre, Messens Joris, Remacle Claire

Abstract excerpt

The function of ascorbate peroxidase-related (APX-R) proteins, present in all green photosynthetic eukaryotes, remains unclear. This study focuses on APX-R from Chlamydomonas reinhardtii, namely, ascorbate peroxidase 2 (APX2). We showed that apx2 mutants exhibited a faster oxidation of the photosystem I primary electron donor, P700, upon sudden light increase and a slower re-reduction rate compared to the wild...

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Identifiers

PMID: 38591346
DOI: 10.1093/pcp/pcae019
PMCID: PMC11094752

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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