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 March 2017
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
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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