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dc.contributor.authorZhao, Tao
dc.contributor.authorGanji, Suresh
dc.contributor.authorSchiebe, Christian
dc.contributor.authorBohman, Björn
dc.contributor.authorWeinstein, Philip
dc.contributor.authorKrokene, Paal
dc.contributor.authorBorg-Karlson, Anna-Karin
dc.contributor.authorUnelius, C. Rikard
dc.identifier.citationThe ISME Journal. 2019, 13 1535-1545.nb_NO
dc.description.abstractConvergent evolution of semiochemical use in organisms from different Kingdoms is a rarely described phenomenon. Tree-killing bark beetles vector numerous symbiotic blue-stain fungi that help the beetles colonize healthy trees. Here we show for the first time that some of these fungi are able to biosynthesize bicyclic ketals that are pheromones and other semiochemicals of bark beetles. Volatile emissions of five common bark beetle symbionts were investigated by gas chromatography-mass spectrometry. When grown on fresh Norway spruce bark the fungi emitted three well-known bark beetle aggregation pheromones and semiochemicals (exo-brevicomin, endo-brevicomin and trans-conophthorin) and two structurally related semiochemical candidates (exo-1,3-dimethyl-2,9-dioxabicyclo[3.3.1]nonane and endo-1,3-dimethyl-2,9-dioxabicyclo[3.3.1]nonane) that elicited electroantennogram responses in the spruce bark beetle Ips typographus. When grown on malt agar with 13C D-Glucose, the fungus Grosmannia europhioides incorporated 13C into exo-brevicomin and trans-conophthorin. The enantiomeric compositions of the fungus-produced ketals closely matched those previously reported from bark beetles. The production of structurally complex bark beetle pheromones by symbiotic fungi indicates cross-kingdom convergent evolution of signal use in this system. This signaling is susceptible to disruption, providing potential new targets for pest control in conifer forests and plantations.nb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleConvergent evolution of semiochemicals across Kingdoms: bark beetles and their fungal symbiontsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.rights.holder© The Author(s) 2019. This article is published with open accessnb_NO
dc.subject.nsiVDP::Landbruks- og Fiskerifag: 900::Landbruksfag: 910::Skogbruk: 915nb_NO
dc.source.journalThe ISME Journalnb_NO
dc.relation.projectNorges forskningsråd: 249958nb_NO
cristin.unitnameDivisjon for bioteknologi og plantehelse

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal