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., 103 times less effective. In contrast swainsonine, 1,2,8-trihydroxyoctahydroindolizidine, is ineffective as an inhibitor of root length elongation.
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Stevens, K.L., Molyneux, R.J. Castanospermine—a plant growth regulator. J Chem Ecol 14, 1467–1473 (1988). https://doi.org/10.1007/BF01012418
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DOI: https://doi.org/10.1007/BF01012418