Western Regional Research Laboratory, Albany, California.
Plant Physiol. 1966 Oct;41(8):1360-3. doi: 10.1104/pp.41.8.1360.
Pharbitis nil seedlings rapidly metabolized (-)-kaurene-17-(14)C administered to the cotyledons. Less than 20% of the radioactivity was recovered by extraction of the cotyledons on the following day. Of this the major metabolite was an unidentified acidic material which did not correspond chromatographically to any of the known gibberellins.Significant differences were observed between the radioactivity found in the buds of a group of seedlings subjected to photoperiodic floral induction and that in a noninduced group. In both cases almost all of this radioactivity was in the neutral fraction, but thin-layer chromatography of these fractions revealed that the induced group contained 2 or more labelled components which were either absent or present in lower concentrations in the noninduced group.
野牵牛幼苗迅速代谢 (-)-贝壳杉烯-17-(14)C 施加于子叶上。第二天提取子叶，不到 20%的放射性物质被回收。其中主要的代谢产物是一种未鉴定的酸性物质，其色谱图与任何已知的赤霉素都不对应。在经历光周期诱导的一组幼苗的芽中发现的放射性物质与未诱导组的放射性物质之间存在显著差异。在这两种情况下，几乎所有的放射性物质都在中性部分，但这些部分的薄层层析显示，诱导组含有 2 种或更多的标记成分，这些成分在未诱导组中要么不存在，要么浓度较低。
