Planta Med 1996; 62(1): 54-56
DOI: 10.1055/s-2006-957797
Paper

© Georg Thieme Verlag Stuttgart · New York

Production of Indoxyl Derivatives in Indole-Supplemented Tissue Cultures of Polygonum tinctorium

Soo-Un Kim1 , Kwang-Seop Song1 , Dae-Soon Jung1 , Young-Am Chae2 , Hyong Joo Lee3
  • 1Department of Agricultural Chemistry and The Research Center for New Biomaterials in Agriculture, Seoul National University, Suwon 441-744, Korea
  • 2Department of Agronomy, S.N.U., Suwon 441-744, Korea
  • 3Department of Food Sciences and Engineering, S.N.U., Suwon 441-744, Korea
Further Information

Publication History

1995

1995

Publication Date:
04 January 2007 (online)

Abstract

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.

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