Vis enkel innførsel

dc.contributor.authorMagerøy, Melissa
dc.contributor.authorWilkinson, Samuel W.
dc.contributor.authorTengs, Torstein
dc.contributor.authorCross, Hugh
dc.contributor.authorAlmvik, Marit
dc.contributor.authorPetriacq, Pierre
dc.contributor.authorVivian-Smith, Adam
dc.contributor.authorZhao, Tao
dc.contributor.authorFossdal, Carl Gunnar
dc.contributor.authorKrokene, Paal
dc.identifier.citationPlant, Cell and Environment. 2020, 43 (8), 1827-1843.en_US
dc.description.abstractIn response to various stimuli, plants acquire resistance against pests and/or pathogens. Such acquired or induced resistance allows plants to rapidly adapt to their environment. Spraying the bark of mature Norway spruce (Picea abies) trees with the phytohormone methyl jasmonate (MeJA) enhances resistance to tree‐killing bark beetles and their associated phytopathogenic fungi. Analysis of spruce chemical defenses and beetle colonization success suggests that MeJA treatment both directly induces immune responses and primes inducible defenses for a faster and stronger response to subsequent beetle attack. We used metabolite and transcriptome profiling to explore the mechanisms underlying MeJA‐induced resistance in Norway spruce. We demonstrated that MeJA treatment caused substantial changes in the bark transcriptional response to a triggering stress (mechanical wounding). Profiling of mRNA expression showed a suite of spruce inducible defenses are primed following MeJA treatment. Although monoterpenes and diterpene resin acids increased more rapidly after wounding in MeJA‐treated than control bark, expression of their biosynthesis genes did not. We suggest that priming of inducible defenses is part of a complex mixture of defense responses that underpins the increased resistance against bark beetle colonization observed in Norway spruce. This study provides the most detailed insights yet into the mechanisms underlying induced resistance in a long‐lived gymnosperm.en_US
dc.publisherJohn Wiley & Sons Ltd.en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.titleMolecular underpinnings of methyl jasmonate‐induced resistance in Norway spruceen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2020 The Authorsen_US
dc.source.journalPlant, Cell and Environmenten_US
dc.relation.projectNorges forskningsråd: 249920en_US
dc.relation.projectNorges forskningsråd: 249958en_US

Tilhørende fil(er)


Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal