Department of Chemistry, Plant Physiology-Biochemistry Group, SUNY College of Forestry at Syracuse University, Syracuse, New York 13210.
Plant Physiol. 1972 Mar;49(3):290-2. doi: 10.1104/pp.49.3.290.
Several radioactive analogues of abscisic acid have been tested for their growth-inhibitory effects and their metabolism in excised embryonic axes of Phaseolus vulgaris. The compounds tested were the methyl and ethyl esters of 2-(14)C-abscisic acid and the cis- and trans-1',4'-diols of 2-(14)C-abscisic acid. All four compounds cause less growth inhibition than abscisic acid, and all four compounds are converted to abscisic acid in the axes at rates which are sufficient to account for most, if not all, of the observed growth-inhibitory activity. None of the four compounds is metabolized to the extent that abscisic acid is metabolized in the axes, suggesting that the structural requirements for growth-inhibitory activity and metabolism may be similar.
几种脱落酸的放射性类似物已被测试其对菜豆切段胚轴的生长抑制作用及其代谢。所测试的化合物为 2-（14）C-脱落酸的甲酯和乙酯，以及 2-（14）C-脱落酸的顺式和反式 1'，4'-二醇。这四种化合物引起的生长抑制作用均小于脱落酸，而且这四种化合物在切段中均转化为脱落酸的速率足以解释大部分，如果不是全部，观察到的生长抑制活性。这四种化合物均未被代谢至与切段中脱落酸相同的程度，这表明生长抑制活性和代谢的结构要求可能相似。
