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dc.contributor.authorRaad, Mayaen
dc.contributor.authorGlare, Travisen
dc.contributor.authorBrochero, H. L.en
dc.contributor.authorMüller, C.en
dc.contributor.authorRostás, M.en
dc.identifier.citationRaad, M., Glare, T.R., Brochero, H.L., Müller, C., & Rostás, M. (2019). Transcriptional reprogramming of Arabidopsis thaliana defence pathways by the entomopathogen Beauveria bassiana correlates with resistance against a fungal pathogen but not against insects. Frontiers in Microbiology, 10, 615. doi:10.3389/fmicb.2019.00615en
dc.description.abstractThe entomopathogenic fungus Beauveria bassiana can adopt an endophytic lifestyle by colonising a wide array of plant species. Beauveria-colonised plants can show enhanced resistance against insects and plant pathogens alike. However, little is known about the molecular and physiological mechanisms that govern such interactions. Here, we assessed the effects of two B. bassiana strains (BG11, FRh2) on the growth of Arabidopsis thaliana and its resistance against two herbivore species and a phytopathogen. Plant responses were studied on the transcriptomic and metabolic level using microarrays and by measuring changes in defence-related phytohormones and glucosinolates (GLSs). Root inoculation with B. bassiana BG11 significantly increased plant growth, while FRh2 had no such effect. Both Beauveria strains decreased leaf lesion area caused by the phytopathogen Sclerotinia sclerotiorum but did not affect population growth of the aphid Myzus persicae or the growth of Plutella xylostella caterpillars. Microarray analyses of leaves from endophyte-inoculated A. thaliana provided evidence for transcriptional reprogramming of plant defence pathways, with strain-specific changes in the expression of genes related to pathogenesis, phytoalexin, jasmonic (JA), and salicylic acid (SA) signalling pathways. However, B. bassiana colonisation did not result in higher concentrations of JA and SA or major changes in leaf GLS profiles. We conclude that the endophyte B. bassiana induces plant defence responses and hypothesise that these contribute to enhanced resistance against S. sclerotiorum.en
dc.publisherFrontiers Mediaen
dc.relationThe original publication is available from - Frontiers Media -
dc.rights© 2019 Raad, Glare, Brochero, Müller and Rostás.en
dc.subjectinduced resistanceen
dc.subjectplant–microbe interactionen
dc.subjectPlutella xylostellaen
dc.subjectMyzus persicaeen
dc.subjectSclerotinia sclerotiorumen
dc.titleTranscriptional reprogramming of Arabidopsis thaliana defence pathways by the entomopathogen Beauveria bassiana correlates with resistance against a fungal pathogen but not against insectsen
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitBio-Protection Research Centreen
dc.subject.anzsrc06 Biological Sciencesen
dc.subject.anzsrc0602 Ecologyen
dc.subject.anzsrc0605 Microbiologyen
dc.subject.anzsrc060808 Invertebrate Biologyen
dc.subject.anzsrc0607 Plant Biologyen
dc.subject.anzsrc060405 Gene Expression (incl. Microarray and other genome-wide approaches)en
dc.subject.anzsrc0502 Environmental Science and Managementen
dc.subject.anzsrc0503 Soil Sciencesen
dc.relation.isPartOfFrontiers in Microbiologyen
pubs.notesArticle number 615. This article was submitted to Plant Microbe Interactions, a section of the journal Frontiers in Microbiology. A Corrigendum to this article was published 27 June 2019 | due to error in author affiliation. Original article has been corrected and updated.en
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/QE18

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