title: Leaf surface sesquiterpene alcohols of the potato (Solanum tuberosum) and their influence on colorado beetle (Leptinotarsa decemlineata Say) feeding.
abstract: The structures of two previously unknown sesquiterpene alcohols of the potato (Solanum tuberosum) were assigned. The potato alcohols were obtained by steam-distillation, preparative column chromatography, and separation into fractions by HPLC on a silica gel column. The fractions were studied by GC-FID, GC-MS, and NMR spectroscopy. The potato sesquiterpene alcohols were identified as kunzeaol (6-alpha-hydroxygermacra-1(10),4-diene) and ledol. These two compounds were used in feeding tests with larvae and beetles of the Colorado potato beetle (Leptinotarsa decemlineata Say). In a bioassay, kunzeaol was found to act as a feeding attractant for the beetles.
authors.affiliation: Faculty of Chemistry, University of Gdańsk, 80-952 Gdańsk, Sobieskiego 18, Poland. beata.szafranek@univ.gda.pl
authors.forename: Beata
authors.initials: B
authors.lastname: Szafranek
authors.forename: Karolina
authors.initials: K
authors.lastname: Chrapkowska
authors.forename: Danuta
authors.initials: D
authors.lastname: Waligóra
authors.forename: Richard
authors.initials: R
authors.lastname: Palavinskas
authors.forename: Arkadiusz
authors.initials: A
authors.lastname: Banach
authors.forename: Janusz
authors.initials: J
authors.lastname: Szafranek
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D001517:Coleoptera / Q000502:physiology*; D004435:Eating / Q000187:drug effects; D010675:Pheromones; D018515:Plant Leaves / Q000737:chemistry*; D012717:Sesquiterpenes / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D011198:Solanum tuberosum / Q000737:chemistry*
chemical_list: D010675:Pheromones; D012717:Sesquiterpenes; C010411:insect attractants; C514849:kunzeaol; C421806:ledol