Seasonal variation of glycyrrhizin and isoliquiritigenin glycosides in the root of Glycyrrhiza glabra L.
Seasonal variation of glycyrrhizin and isoliquiritigenin glycosides in the root of Glycyrrhiza glabra L.
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DOI：
10.1248/bpb.21.987
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发表时间：
1998-09-01
影响因子：
2
通讯作者：
Yoshikawa, T
中科院分区：
文献类型：
--
作者：
Hayashi, H;Hiraoka, N;Yoshikawa, T
测定了甘草(Glycrrhiza glabra L.)粗根中甘草甜素和异甘草素苷含量的时间进程。 1年生根中甘草甜素含量从10月到11月迅速增加，而异甘草素苷含量到10月才增加。 3年生植株中，虽然6-7月异甘草素苷含量迅速增加，但5-8月甘草甜素含量没有出现明显增加。甘草甜素含量在地上部分衰老期间以及芽伸长初期增加。根段对甘草甜素组分中[C-14]甲羟戊酸的掺入量在5月、6月和9月较高，在8月和冬季较低。这些结果表明，光甘草增粗根中甘草甜素的生物合成与异甘草素苷的生物合成受到不同的调节。
The time courses of the glycyrrhizin and isoliquiritigenin glycoside contents in the thickening roots of licorice, Glycrrhiza glabra L., have been determined. The glycyrrhizin content in 1-year-old roots rapidly increased from October to November, whereas the isoliquiritigenin glycoside content increased up to October. In 3-year-old plants, although the isoliquiritigenin glycoside content rapidly increased from June to July, the glycyrrhizin content did not show any significant increase from May to august. The glycyrrhizin content increased during the senescence of the aerial parts as well as during the early stage of shoot elongation. The incorporation of [C-14]mevalonic acid into the glycyrrhizin fraction by the root segments was high in May, June and September, and low in August and winter. These results indicated that the biosynthesis of glycyrrhizin is differently regulated from that of isoliquiritigenin glycoside in the thickening root of G. glabra.