Specific Oxidative Cleavage of Carotenoids by VP14 of Maize
- 20 June 1997
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 276 (5320) , 1872-1874
- https://doi.org/10.1126/science.276.5320.1872
Abstract
The plant growth regulator abscisic acid (ABA) is formed by the oxidative cleavage of an epoxy-carotenoid. The synthesis of other apocarotenoids, such as vitamin A in animals, may occur by a similar mechanism. In ABA biosynthesis, oxidative cleavage is the first committed reaction and is believed to be the key regulatory step. A new ABA-deficient mutant of maize has been identified and the corresponding gene, Vp14 , has been cloned. The recombinant VP14 protein catalyzes the cleavage of 9- cis -epoxy-carotenoids to form C 25 apo-aldehydes and xanthoxin, a precursor of ABA in higher plants.Keywords
This publication has 19 references indexed in Scilit:
- Sequence Analysis of the Genome of the Unicellular Cyanobacterium Synechocystis sp. Strain PCC6803. II. Sequence Determination of the Entire Genome and Assignment of Potential Protein-coding RegionsDNA Research, 1996
- Retinoic acid can be produced from excentric cleavage of β-carotene in human intestinal mucosaArchives of Biochemistry and Biophysics, 1992
- Carotenoid metabolism and the biosynthesis of abscisic acidPhytochemistry, 1991
- Metabolism and Physiology of Abscisic AcidAnnual Review of Plant Biology, 1988
- Identification of a receptor for the morphogen retinoic acidNature, 1987
- Conversion of Xanthoxin to Abscisic Acid by Cell-Free Preparations from Bean LeavesPlant Physiology, 1987
- A rhodopsin is the functional photoreceptor for phototaxis in the unicellular eukaryote ChlamydomonasNature, 1984
- Incorporation of Oxygen into Abscisic Acid and Phaseic Acid from Molecular OxygenPlant Physiology, 1984
- Molecular Basis of Visual ExcitationScience, 1968
- Production of Plant Growth Inhibitors from Xanthophylls: a Possible Source of DorminNature, 1967