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Arthropod infestation sites and induced defence can be traced by emission from single spruce needles
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemi.
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemi, Organisk kemi. Department of Science and Technology, Örebro University, Örebro, Sweden.
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemi, Organisk kemi.
2019 (Engelska)Ingår i: Arthropod-Plant Interactions, ISSN 1872-8855, E-ISSN 1872-8847, Vol. 13, nr 2, s. 253-259Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
SPRINGER , 2019. Vol. 13, nr 2, s. 253-259
Nyckelord [en]
(E)-beta-Farnesene, Methyl jasmonate, Picea abies, Solid-phase microextraction (SPME), Stress-induced volatiles, Oligonychus ununguis
Nationell ämneskategori
Växtbioteknologi
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URN: urn:nbn:se:kth:diva-251334DOI: 10.1007/s11829-019-09677-0ISI: 000464759300010Scopus ID: 2-s2.0-85061640688OAI: oai:DiVA.org:kth-251334DiVA, id: diva2:1317604
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QC 20190523

Tillgänglig från: 2019-05-23 Skapad: 2019-05-23 Senast uppdaterad: 2019-05-23Bibliografiskt granskad

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