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A fungal metabolite masks the host plant odor for the pine weevil (Hylobius abietis)
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry. COMSATS Inst Informat Technol, Dept Chem, Abbottabad 22060, Pakistan.
KTH, School of Biotechnology (BIO), Industrial Biotechnology.
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2015 (English)In: Fungal ecology, ISSN 1754-5048, E-ISSN 1878-0083, Vol. 13, 103-111 p.Article in journal (Refereed) Published
Abstract [en]

The pine weevil is one of the most important pest insects of conifer reforestation areas in Europe. Female pine weevils cover their eggs with chewed bark and feces (frass) resulting in avoidance behavior of feeding conspecifics towards egg laying sites. It has been suggested that microorganisms present in the frass may be responsible for producing deterrent compounds for the pine weevil. The fungi Ophiostoma canum, O. pluriannulatum, and yeast Debaryomyces hansenii were isolated from aseptically collected pine-weevil frass. The isolated fungi were cultured on weevil frass broth and their volatiles were collected by SPME and identified by GC MS. D. hansenii produced methyl salicylate (MeS) as a major compound, whereas, in addition, O. canum and O. pluriannulatum produced 6-protoilludene. In a multi-choice lab bioassay, MeS strongly reduced pine weevil's attraction to the Pinus sylvestris volatiles. Thus, a fungal metabolite was found that strongly affects the pine weevil host-odor search. (C) 2014 Elsevier Ltd and The British Mycological Society. All rights reserved.

Place, publisher, year, edition, pages
2015. Vol. 13, 103-111 p.
Keyword [en]
Antifeedant, Blue stain fungus, Chemical communication, Debaryomyces hansenii, Frass, Hylobius abietis, Methyl salicylate, Ophiostoma, Pine weevil
National Category
Environmental Biotechnology
Identifiers
URN: urn:nbn:se:kth:diva-160369DOI: 10.1016/j.funeco.2014.08.009ISI: 000347765400012Scopus ID: 2-s2.0-84919478915OAI: oai:DiVA.org:kth-160369DiVA: diva2:791235
Funder
Swedish Research CouncilSwedish Foundation for Strategic Research , RBb08-0003
Note

QC 20150227

Available from: 2015-02-27 Created: 2015-02-19 Last updated: 2017-12-04Bibliographically approved

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