| Title: | "Constitutive polymorphic cyanogenesis in the Australian rainforest tree, Ryparosa kurrangii (Achariaceae)" |
| Author(s): | Webber BL; Miller RE; Woodrow IE; |
| Address: | "School of Botany, The University of Melbourne, Victoria 3010, Australia. b.webber@bigfoot.com" |
| DOI: | 10.1016/j.phytochem.2007.04.038 |
| ISSN/ISBN: | 0031-9422 (Print) 0031-9422 (Linking) |
| Abstract: | "Cyanogenesis, the liberation of volatile hydrogen cyanide from endogenous cyanide-containing compounds, is a proven plant defence mechanism and the particular cyanogens involved have taxonomic utility. The cyclopentenoncyanhydrin glycoside gynocardin was the only cyanogen isolated from foliar tissue of the rare Australian rainforest tree, Ryparosa kurrangii (Achariaceae). Mechanical damage simulating foliar herbivory did not induce a significant increase in the expression of cyanogenesis over a 24h period, indicating cyanogenic herbivore defence in R. kurrangii is constitutive. The cyanogenic potential of mature leaves was quantitatively polymorphic between trees in a natural population, ranging from 0.54 to 4.77 mg CN g(-1) dry wt leaf tissue" |
| Keywords: | "Chromatography, High Pressure Liquid Glycosides/*isolation & purification Magnoliopsida/*growth & development/metabolism Nitriles/*isolation & purification Nuclear Magnetic Resonance, Biomolecular Plant Leaves/growth & development/metabolism Queensland So;" |
| Notes: | "MedlineWebber, Bruce L Miller, Rebecca E Woodrow, Ian E eng Research Support, Non-U.S. Gov't England 2007/06/16 Phytochemistry. 2007 Aug; 68(15):2068-74. doi: 10.1016/j.phytochem.2007.04.038. Epub 2007 Jun 13" |
