Control of abscisic acid synthesis

The abscisic acid (ABA) biosynthetic pathway involves the formation of a 9-cis-epoxycarotenoid precursor. Oxidative cleavage then results in the formation of xanthoxin, which is subsequently converted to ABA. A number of steps in the pathway may control ABA synthesis, but particular attention has be...

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Détails bibliographiques
Publié dans:Journal of experimental botany. - 1985. - 51(2000), 350 vom: 22. Sept., Seite 1563-74
Auteur principal: Taylor, I B (Auteur)
Autres auteurs: Burbidge, A, Thompson, A J
Format: Article
Langue:English
Publié: 2000
Accès à la collection:Journal of experimental botany
Sujets:Journal Article Review Plant Proteins Abscisic Acid 72S9A8J5GW Oxidoreductases EC 1.- zeaxanthin epoxidase Oxygenases EC 1.13.- plus... Dioxygenases EC 1.13.11.- 9-cis-epoxy-carotenoid dioxygenase EC 1.13.11.51 Aldehyde Oxidoreductases EC 1.2.- Aldehyde Oxidase EC 1.2.3.1
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Résumé:The abscisic acid (ABA) biosynthetic pathway involves the formation of a 9-cis-epoxycarotenoid precursor. Oxidative cleavage then results in the formation of xanthoxin, which is subsequently converted to ABA. A number of steps in the pathway may control ABA synthesis, but particular attention has been given to the enzyme involved in the oxidative cleavage reaction, i.e. 9-cis-epoxycarotenoid dioxygenase (NCED). Cloning of a gene encoding this enzyme in maize was first reported in 1997. Mapping and DNA sequencing studies indicated that a wilty tomato mutant was due to a deletion in the gene encoding an enzyme with a very similar amino acid sequence to this maize NCED. The potential use of this gene in altering ABA content will be discussed together with other genes encoding ABA biosynthetic enzymes
Description:Date Completed 26.10.2000
Date Revised 09.01.2024
published: Print
Citation Status MEDLINE
ISSN:1460-2431