Anthraquinones in Cinchona ledgeriana Bark Infected with Phytophthora cinnamomi

R. Wijnsma; I. N. van Weerden; R. Verpoorte; P. A. A. Harkes; Ch. B. Lugt; J. J. C. Scheffer; A. Baerheim Svendsen

doi:10.1055/s-2007-969125

Planta Med 1986; 52(3): 211-212
DOI: 10.1055/s-2007-969125

Full Papers

Anthraquinones in Cinchona ledgeriana Bark Infected with Phytophthora cinnamomi

R. Wijnsma¹ , I. N. van Weerden¹ , R. Verpoorte¹ , P. A. A. Harkes² , Ch. B. Lugt³ , J. J. C. Scheffer¹ , A. Baerheim Svendsen¹

¹Division Pharmacognosy, Center for Bio-Pharmaceutical Sciences, Leiden University, Gorlaeus Laboratories, P. O. Box 9502, 2300 RA Leiden, The Netherlands.
²Department of Plant Molecular Biology, Subfaculty of Biology, Leiden University, Nonnensteeg 3, 2311 VJ Leiden, The Netherlands.
³Mulitplant B.V., P.O. Box 87, 3600 AB Maarssen, The Netherlands.

Abstract

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Abstract

The contents of secondary metabolites (alkaloids and anthraquinones) in Cinchona ledgeriana bark infected with Phytophthora cinnamomi and in non-infected bark were determined. It was found that the alkaloid content of the infected bark was lower. Whereas no anthraquinones could be detected in the healthy bark, these compounds were present in the infected bark. So, anthraquinones in Cinchona act as phytoalexins.

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