Leaf surface sesquiterpene alcohols of the potato (Solanum tuberosum) and their influence on colorado beetle (Leptinotarsa decemlineata Say) feeding.
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.
Szafranek
Beata
B
Faculty of Chemistry, University of Gdańsk, 80-952 Gdańsk, Sobieskiego 18, Poland. beata.szafranek@univ.gda.pl
Chrapkowska
Karolina
K
Waligóra
Danuta
D
Palavinskas
Richard
R
Banach
Arkadiusz
A
Szafranek
Janusz
J
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*
D010675:Pheromones; D012717:Sesquiterpenes; C010411:insect attractants; C514849:kunzeaol; C421806:ledol