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...
Publié dans: | Journal of experimental botany. - 1985. - 51(2000), 350 vom: 22. Sept., Seite 1563-74 |
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Auteur principal: | |
Autres auteurs: | , |
Format: | Article |
Langue: | English |
Publié: |
2000
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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... |
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 |
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Description: | Date Completed 26.10.2000 Date Revised 09.01.2024 published: Print Citation Status MEDLINE |
ISSN: | 1460-2431 |