Burt G W, Muzik T J
College of Agriculture, Washington State University, Pullman, Washington 99163.
Plant Physiol. 1971 Jun;47(6):795-8. doi: 10.1104/pp.47.6.795.
The influence of indoleacetic acid, cacodylic acid (hydroxy-dimethylarsine oxide), and amitrole (3-amino-1,2,4-triazole) on the petiole explant abscission rate was studied in three species. Indoleacetic acid increased the abscission rate in both bean (Phaseolus vulgaris L. var. Red Kidney) and Coleus (Coleus blumei Benth) at 10(-3) and 10(-4)m but had no effect on abscission in privet (Ligustrum ovalifolium). Cacodylic acid was found to stimulate abscission in explants of beans and privet, but not in Coleus. Amitrole did not stimulate abscission under any circumstance tested. In no case was the abscission rate dependent on the time at which any of the chemicals was applied. These data do not support the two-phase response of explants to applied auxin.
研究了吲哚乙酸、二甲胂酸（羟基二甲基氧化胂）和杀草强（3-氨基-1,2,4-三唑）对三种植物叶柄外植体脱落率的影响。吲哚乙酸在浓度为10⁻³和10⁻⁴mol/L时，提高了菜豆（菜豆属普通菜豆变种红肾豆）和彩叶草（彩叶草）的脱落率，但对女贞（卵叶女贞）的脱落没有影响。发现二甲胂酸能刺激菜豆和女贞外植体的脱落，但对彩叶草没有作用。在任何测试条件下，杀草强都不会刺激脱落。在任何情况下，脱落率都不取决于施用任何一种化学物质的时间。这些数据不支持外植体对施用生长素的双相反应。
