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Article

ABSCISIC ACID-DEFICIENT4 Has an Essential Function in Both cis-Violaxanthin and cis-Neoxanthin Synthesis.

Plant physiology - 1 Nov 2020

Perreau François, Frey Anne, Effroy-Cuzzi Delphine, Savane Parisa, Berger Adeline, Gissot Lionel, Marion-Poll Annie

Abstract excerpt

Abscisic acid (ABA), a plant hormone synthesized from carotenoids, functions in seed germination and abiotic stress responses. ABA is derived from the cleavage of 9-cis-isomers of violaxanthin and neoxanthin, which are oxygenated carotenoids, also called xanthophylls. Although genes encoding enzymes responsible for most steps of the ABA biosynthesis pathway have been identified, enzymatic reactions leading to the...

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PMID: 32883757
DOI: 10.1104/pp.20.00947
PMCID: PMC7608147

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