International Carnivorous Plant Society

Carnivorous Plant Newsletter Archive

 

Unexpected discovery of 7-Methyljuglone (Ramentaceone) in several Australian sundews

Jan Schlauer and Siegfried R. H. Hartmeyer and Irmgard Hartmeyer

Carniv. Pl. Newslett. 46(1):20-22
Published 24 February 2017

https://doi.org/10.55360/cpn461.js140

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Abstract

Naphthoquinones are characteristic constituents that have been detected in numerous plant families. There are at least four fundamentally different biosynthetic routes that lead to the naphthoquinone skeleton. Some naphthoquinones are formed via the acetatepolymalonate (= polyketide) pathway, and plant families notoriously known for containing such acetogenins are Iridaceae, Ebenaceae, Plumbaginaceae, Droseraceae, Nepenthaceae, Drosophyllaceae, Dioncophyllaceae, and Ancistrocladaceae. While all these families include species that form plumbagin (= 2-methyljuglone), its regioisomer 7-methyljuglone (= ramentaceone) has so far only been detected in Ebenaceae, Nepenthaceae, and Droseraceae.

Keywords: Metabolism, phytochemistry, naphthoquinones, Drosera, chemotaxonomy

Article Citation

Jan Schlauer and Siegfried R. H. Hartmeyer and Irmgard Hartmeyer. 2017. Unexpected discovery of 7-Methyljuglone (Ramentaceone) in several Australian sundews. Carniv. Pl. Newslett. 46(1):20-22. https://doi.org/10.55360/cpn461.js140

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