| Title: | Volatiles from a mite-infested spruce clone and their effects on pine weevil behavior |
| Author(s): | Kannaste A; Nordenhem H; Nordlander G; Borg-Karlson AK; |
| Address: | "Department of Chemistry, Ecological Chemistry Group, Royal Institute of Technology, KTH, SE-100 44, Stockholm, Sweden" |
| DOI: | 10.1007/s10886-009-9708-3 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Induced responses by Norway spruce (Picea abies) seedlings to feeding damage by two mite species were studied by analyzing the volatiles emitted during infestation. Four specimens of a Norway spruce (Picea abies L.) clone were infested with mites of Nalepella sp., another four with Oligonychus ununguis, and four were kept mite-free as controls. After a year of infestation, spruce volatiles were collected, analyzed, and identified using SPME-GC-MS. In addition, enantiomers of chiral limonene and linalool were separated by two-dimensional GC. Methyl salicylate (MeSA), (-)-linalool, (E)-beta-farnesene, and (E,E)-alpha-farnesene were the main volatiles induced by both species of mites, albeit in different proportions. The ability of the main compounds emitted by the mite-infested spruces to attract or repel the pine weevil, Hylobius abietis (L.), was tested. (E)-beta-farnesene was found to be attractive in the absence of spruce odor, whereas methyl salicylate had a deterrent effect in combination with attractive spruce odor. The other tested compounds had no significant effects on the behavior of the weevils" |
| Keywords: | "Animals Behavior, Animal/*drug effects Cloning, Molecular Female Male Mites/*physiology Organic Chemicals/*chemistry/*pharmacology Picea/*chemistry/*parasitology Plant Diseases Volatilization Weevils/*drug effects;" |
| Notes: | "MedlineKannaste, Astrid Nordenhem, Henrik Nordlander, Goran Borg-Karlson, Anna-Karin eng Research Support, Non-U.S. Gov't 2009/11/11 J Chem Ecol. 2009 Oct; 35(10):1262-71. doi: 10.1007/s10886-009-9708-3. Epub 2009 Nov 10" |
