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Arthropod infestation sites and induced defence can be traced by emission from single spruce needle
Department of Chemistry, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH, Stockholm, Sweden.
Örebro University, School of Science and Technology. Department of Chemistry, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH, Stockholm, Sweden. (Ecosystem Ecology)ORCID iD: 0000-0001-5909-2841
Department of Chemistry, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH, Stockholm, Sweden.
2019 (English)In: Arthropod-Plant Interactions, ISSN 1872-8855, E-ISSN 1872-8847, Vol. 13, no 2, p. 253-259Article in journal (Refereed) Published
Abstract [en]

Emissions of defence chemicals from Norway spruce seedlings can be induced by feeding arthropods or by exogenous hormonal application. Some defence chemicals may attract or repel associated arthropods. The aim of this study was to show that it is possible to detect and collect stress-induced volatiles from micro sites, such as at the scale of a single needle, in vivo by using SPME. Methyl jasmonate application on the stem of Norway spruce seedlings induced emission of (E)-beta-farnesene only from the needles closest to the application site. Emissions of (E)-beta-farnesene, (E,E)-alpha-farnesene and (E)-alpha-bisabolene were only detected from needles infested by the spider mite Oligonychus ununguis. The total volatile amount detected by SPME-GC-MS reached a considerable mass of 14 ng/needle/24 h, suggesting that emission from damaged and stressed conifers might have a larger impact on the macro climate than previously estimated.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 13, no 2, p. 253-259
Keywords [en]
(E)-beta-Farnesene, Methyl jasmonate, Picea abies, Solid-phase microextraction (SPME), Stress-induced volatiles, Oligonychus ununguis
National Category
Biological Sciences Environmental Sciences
Research subject
Biology
Identifiers
URN: urn:nbn:se:oru:diva-71871DOI: 10.1007/s11829-019-09677-0ISI: 000464759300010Scopus ID: 2-s2.0-85061640688OAI: oai:DiVA.org:oru-71871DiVA, id: diva2:1283122
Funder
Swedish Research Council Formas, 229-2011-890; 2013-1477
Note

Funding Agency:

Swedish University of Agricultural Sciences

Available from: 2019-01-28 Created: 2019-01-28 Last updated: 2019-05-03Bibliographically approved

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Zhao, Tao

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