USDA-ARS, Western Regional Research Center, 800 Buchanan Street, 94710, Albany, California.
J Chem Ecol. 1988 Jun;14(6):1467-73. doi: 10.1007/BF01012418.
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.
金合欢素，1,6,7,8-四羟基辛氢吲哚嗪，已被证明是一种有效的双子叶植物毒素。抑制双子叶植物根伸长 50%的有效浓度为 300 ppb，而对单子叶植物根的有效浓度为 200 ppm，即效力降低 10(3)倍。相比之下，苦马豆素，1,2,8-三羟基辛氢吲哚嗪，作为根伸长抑制剂是无效的。
