Klepzig KD, Schlyter F (1999) Laboratory evaluation of plant-derived antifeedants against the pine weevil Hylobius abietis (Coleoptera: Curculionidae). Kännaste A, Nordenhem H, Nordlander G, Borg-Karlson AK (2009) Volatiles from a mite-infested spruce clone and their effects on pine weevil behavior. Kännaste A, Vongvanich N, Borg-Karlson AK (2008) Infestation by a Nalepella species induces emissions of α- and β-farnesenes, (−)-linalool and aromatic compounds in Norway spruce clones of different susceptibility to the large pine weevil. ![]() Huber DPW, Borden JH (2001) Angiosperm bark volatiles disrupt response of Douglas-fir beetle, Dendroctonus pseudotugae, to attractant-baited traps. Gargouri M, Drouet P, Legoy MD (2004) Hydroperoxide-lyase activity in mint leaves: volatile C6-aldehyde production from hydroperoxy-fatty acids. Cell Mol Life Sci 48(5):523–524Įsteban I, Bergmann F, Gregorius H, Huhtinen O (1976) Composition and genetics of monoterpenes from cortical oleoresin of Norway spruce and their significance for clone identification. J Chromatogr 503(1):1–24ĭickens J, Billings R, Payne T (1992) Green leaf volatiles interrupt aggregation pheromone response in bark beetles infesting southern pines. Acta Chem Scand 47(2):138–144ĭanielsson M, Kannaste A, Lindstrom A, Hellqvist C, Stattin E, Langstrom B, Borg-Karlson AK (2008) Mini-seedlings of Picea abies are less attacked by Hylobius abietis than conventional ones: is plant chemistry the explanation? Scand J For Res 23(4):299–306ĭavies N (1990) Gas chromatographic retention indices of monoterpenes and sesquiterpenes on methyl silicone and Carbowax 20 M phases. Springer, Dordrecht, pp 137–187īorg-Karlson A-K, Lindström M, Norin T, Persson M, Valterova I (1993) Enantiomeric composition of monoterpene hydrocarbons in different tissues of Norway spruce, Picea abies (L) Karst.-a multidimensional gas-chromatography study. In: Schaller A (ed) Induced plant resistance to herbivory. Zeitschrift Fur Naturforschung C 61(5–6):439–444īohlmann J (2008) Insect-induced terpenoid defenses in spruce. The possible role of these observed differences in odor emissions between seedlings of different age and physiological status for the feeding preferences of the large pine weevil is discussed.Īlmquist AC, Fäldt J, Yart A, Chevet Y, Sauvard D, Lieutier F, Borg-Karlson A-K (2006) Selection in Tomicus piniperda L.: composition of monoterpene hydrocarbons in relation to attack frequency in the shoot feeding phase. ![]() High amount of GLVs was characteristic for the 43-week-old seedlings stored in naturally changing outdoor temperature, but not present in the seedlings winter-stored at a constant temperature of −4 ☌. Different storage conditions of the seedlings during the winter/early spring-phase influenced the volatile composition in the phloem. The attractive compound for the pine weevil, α-pinene, was first detected in the phloem emissions of 18- to 22-week-old seedlings. Age-related changes, however, were found in the volatiles released by wounded phloem where green leaf volatiles (GLVs) and borneol were the dominated VOC for young seedling. Only minor changes in the volatile composition of the two types of seedlings were found during the first year. ![]() Most of the seedlings represented either a limonene- or a bornyl acetate-chemotype. The enantiomers of α-pinene and limonene were separated in a two-dimensional GC (2D-GC). Collection and identification of the volatiles was made by solid phase micro-extraction and gas chromatography mass spectrometry (SPME–GC–MS). In the present paper, the emissions of volatile organic compounds (VOC) of 7- to 43-week-old Norway spruce seedlings were analyzed. Chemical difference between the seedling types is one possible explanation for this phenomenon. Small conifer seedlings (mini-seedlings) are less damaged by the large pine weevil Hylobius abietis (L.) (Coleoptera: Curculionidae) compared to conventional seedlings.
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