title: Castanospermine-a plant growth regulator.
abstract: Castanospermine, 1,6,7,8-tetrahydroxyoctahydroindolizine, has been shown to be a potent dicot phytotoxin. The effective concentration to inhibit root length elongation of dicot roots by 50% is 300 ppb, while the effective concentration against monocot roots is 200 ppm, i.e., 10(3) times less effective. In contrast swainsonine, 1,2,8-trihydroxyoctahydroindolizidine, is ineffective as an inhibitor of root length elongation.
authors.affiliation: USDA-ARS, Western Regional Research Center, 800 Buchanan Street, 94710, Albany, California.
authors.forename: K L
authors.initials: KL
authors.lastname: Stevens
authors.forename: R J
authors.initials: RJ
authors.lastname: Molyneux