strigolactones
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Strigolactones are a group of chemical compounds produced by roots of plants. Due to their mechanism of action, these molecules have been classified as plant hormones or phytohormones. So far, strigolactones have been identified to be responsible for three different physiological processes: First, they promote the germination of parasitic organisms that grow in the host plant's roots, such as Striga lutea and other plants of the genus Striga. Second, strigolactones are fundamental for the recognition of the plant by symbiotic fungi, especially arbuscular mycorrhizal fungi, because they establi
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~16 min read
Article
17 sectionsContents
- Discovery and functions
- Germination of parasitic plant
- Shoot branching hormone inhibition
- Chemistry
- Properties
- Chemical structures
- Biosynthesis
- Carotenoid pathway via carlactone
- Role of ABA in biosynthesis
- Molecular perception
- Mechanism of action
- Germination of arbuscular mycorrhiza
- Auxin-mediated secondary growth
- Ecology
- Plant-fungi interaction
- See also
- References
Strigolactones are a group of chemical compounds produced by roots of plants. Due to their mechanism of action, these molecules have been classified as plant hormones or phytohormones. So far, strigolactones have been identified to be responsible for three different physiological processes: First, they promote the germination of parasitic organisms that grow in the host plant's roots, such as Striga lutea and other plants of the genus Striga. Second, strigolactones are fundamental for the recognition of the plant by symbiotic fungi, especially arbuscular mycorrhizal fungi, because they establish a mutualistic association with these plants, and provide phosphate and other soil nutrients. Third, strigolactones have been identified as branching inhibition hormones in plants; when present, these compounds prevent excess bud growing in stem terminals, stopping the branching mechanism in plants.
thumb|279x279px|General structure of strigolactones