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AAO2 impairment enhances aldehyde detoxification by AAO3 in Arabidopsis leaves exposed to UV-C or Rose-Bengal.

The Plant journal : for cell and molecular biology - 1 Oct 2024

Nurbekova Zhadyrassyn, Srivastava Sudhakar, Nja Zai Du, Khatri Kusum, Patel Jaykumar, Choudhary Babita, Turečková Veronica, Strnad Miroslav, Zdunek-Zastocka Edyta, Omarov Rustem, Standing Dominic, Sagi Moshe

Abstract excerpt

Among the three active aldehyde oxidases in Arabidopsis thaliana leaves (AAO1-3), AAO3, which catalyzes the oxidation of abscisic-aldehyde to abscisic-acid, was shown recently to function as a reactive aldehyde detoxifier. Notably, aao2KO mutants exhibited less senescence symptoms and lower aldehyde accumulation, such as acrolein, benzaldehyde, and 4-hydroxyl-2-nonenal (HNE) than in wild-type leaves exposed to...

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PMID: 39190782
DOI: 10.1111/tpj.16985

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