A red pigment produced in the suspension, root and, shoot cultures of Polygonum tinctorium Ait. (Polygonaceae) upon feeding of indole was identified as indirubin by comparison with the authentic compound obtained from the leaves of the plant. Indole-5-d was specifically incorporated into the pigment to form indirubin-5,5′-d 2 when fed to the cultures. Tryptophan feeding did not cause the accumulation of the pigment. The dilution of the fed indole with the endogeneous indole was about zero, ten, and thirty-five percent for the suspension, root, and shoot cultures, respectively. The feeding of indole to the suspension and root cultures suppressed the biosynthesis of indigo thus resulting in the production of indirubin. However, the fed indole was equally well incorporated into indigo and indirubin in the shoot culture.
一种在蓼蓼的悬浮液、根和芽培养物中产生的红色素。 (蓼科)在喂食
吲哚后,通过与从植物叶子中获得的真实化合物进行比较,将其鉴定为
靛玉红。当添加到培养物中时,Indole-5-d 被特异性地掺入色素中以形成 indirubin-5,5'-d 2 。色
氨酸喂养不会导致色素积累。对于悬浮液、根和芽培养物来说,用内源
吲哚补加的
吲哚稀释度分别约为百分之零、百分之十和百分之三十五。将
吲哚添加到悬浮液和根培养物中抑制靛蓝的
生物合成,从而导致
靛玉红的产生。然而,饲喂的
吲哚同样很好地融入芽培养物中的靛蓝和
靛玉红中。