Synthesis of Phytoalexins in Sorghum as a Site-Specific Response to Fungal Ingress
Abstract
Sorghum produces phytoalexins that are 3-deoxyanthocyanidin flavonoids. The compounds inhibit the growth of phytopathogenic fungi in vitro. The phytoalexins appear to be synthesized in subcellular inclusions within a host epidermal cell that is about to be penetrated by a fungus. This site-restricted synthesis suggests that the phytoalexin response occurs initially in the first cells that come under fungal attack and is not simply a response of cells that surround the original infection site.
- Publication:
-
Science
- Pub Date:
- June 1990
- DOI:
- 10.1126/science.248.4963.1637
- Bibcode:
- 1990Sci...248.1637S