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The Arabidopsis J-protein DJA4 protects chloroplasts from arsenic toxicity by binding arsenite.

The New phytologist - 1 May 2026

Wang Peitong, Ding Yue, Tang Zhong, Sun Sheng-Kai, Chen Xi, Yamaji Naoki, Ma Jian Feng, Zhao Fang-Jie

Abstract excerpt

Chloroplasts are a sensitive target of arsenic (As) toxicity. How chloroplasts are protected against As toxicity remains unclear. We isolated an As-hypersensitive Arabidopsis thaliana mutant, aic2 cad1-3, from an ethyl methanesulfonate-mutagenized cad1-3 background defective in phytochelatin synthase. This double mutant displayed enhanced leaf chlorosis, reduced chloroplast number, impaired chloroplast structure,...

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PMID: 41742341
DOI: 10.1111/nph.71044

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 5 Sept 2026.

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