Article
The path from β-carotene to carlactone, a strigolactone-like plant hormone.
Science (New York, N.Y.) - 16 Mar 2012
Alder Adrian, Jamil Muhammad, Marzorati Mattia, Bruno Mark, Vermathen Martina, Bigler Peter, Ghisla Sandro, Bouwmeester Harro, Beyer Peter, Al-Babili Salim
Abstract excerpt
Strigolactones, phytohormones with diverse signaling activities, have a common structure consisting of two lactones connected by an enol-ether bridge. Strigolactones derive from carotenoids via a pathway involving the carotenoid cleavage dioxygenases 7 and 8 (CCD7 and CCD8) and the iron-binding protein D27. We show that D27 is a β-carotene isomerase that converts all-trans-β-carotene into 9-cis-β-carotene, which...
Topics
- Arabidopsis
- Arabidopsis Proteins
- Biosynthetic Pathways
- Carotenoids
- Dioxygenases
- Germination
- Isomerases
- Lactones
- Molecular Structure
- Mutation
- Oryza