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Correlations between terpenes emitted by mini-plants of Norway spruce and Scots pine
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry. (Ecological Chemistry Group)
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry. (Ecological Chemistry Group)
(English)Manuscript (Other academic)
Keyword [en]
conifer; seedling; correlation; monoterpenes; sesquiterpenes; SPME
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-8336OAI: oai:DiVA.org:kth-8336DiVA: diva2:13629
Note
QC 20100818Available from: 2008-05-06 Created: 2008-05-06 Last updated: 2010-08-18Bibliographically approved
In thesis
1. Volatiles of Conifer Seedlings: Compositions and Resistance Markers
Open this publication in new window or tab >>Volatiles of Conifer Seedlings: Compositions and Resistance Markers
2008 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

Pine weevils cause major damage to newly planted conifer seedlings in reforestation areas. However, recent findings indicate that small (“mini”) seedlings, planted at the age of 7-10 weeks, are gnawed less by pine weevils than the larger, conventionally planted seedlings. Thus, it has been proposed that planting young conifer seedlings in clear-cut areas may reduce the damage caused by pine weevils. In attempts to determine why mini seedlings appear to be less damaged by pine weevils than “conventional” seedlings, the volatiles released by Norway spruce and Scots pine mini seedlings were investigated, since such chemicals are of great importance in herbivore-plant communication, inter alia acting as repellents, attractants or antifeedants.

Volatiles from the seedlings were collected, separated and identified by solid phase microextraction (SPME) followed by gas chromatography-mass spectrometry.

The results show that there are high levels of chemodiversity among both spruce and pine seedlings. Between-tissue and age-related variations in their emissions were also found.

Norway spruce clones infested by mites were also examined to assess genotype- and pest-specific stress reactions of Norway spruce. Finally, the effects of certain spruce defense compounds on the behavior of the large pine weevil Hylobius abietis were examined.

Place, publisher, year, edition, pages
Stockholm: KTH, 2008. 51 p.
Series
Trita-CHE-Report, ISSN 1654-1081 ; 2008:34
Keyword
Conifers, Norway spruce, Scots pine, Nalepella, Oligonychus ununguis, green leaf volatiles, terpenes, aromatics, benzenoids, SPME, induced defense reaction
National Category
Organic Chemistry
Identifiers
urn:nbn:se:kth:diva-4723 (URN)978-91-7178-962-4 (ISBN)
Public defence
2008-05-19, F3, Lindstedtsvägen 26, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20100818Available from: 2008-05-06 Created: 2008-05-06 Last updated: 2010-08-18Bibliographically approved

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