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Planta Med 1986; 52(3): 211-212
DOI: 10.1055/s-2007-969125
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© Georg Thieme Verlag Stuttgart · New York

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.
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Publication History

1985

Publication Date:
26 February 2007 (online)

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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.