Rostás, Michael Georg

[["dc.bibliographiccitation.journal","Frontiers in Microbiology"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Raad, Maya"],["dc.contributor.author","Glare, Travis R."],["dc.contributor.author","Brochero, Helena L."],["dc.contributor.author","Müller, Caroline"],["dc.contributor.author","Rostás, Michael"],["dc.date.accessioned","2020-12-10T18:44:27Z"],["dc.date.available","2020-12-10T18:44:27Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.3389/fmicb.2019.01481"],["dc.identifier.eissn","1664-302X"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78460"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.iserratumof","/handle/2/59826"],["dc.title","Corrigendum: Transcriptional Reprogramming of Arabidopsis thaliana Defence Pathways by the Entomopathogen Beauveria bassiana Correlates With Resistance Against a Fungal Pathogen but Not Against Insects"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","erratum_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","524"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Molecular Plant-Microbe Interactions®"],["dc.bibliographiccitation.lastpage","537"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Schweiger, Rabea"],["dc.contributor.author","Padilla-Arizmendi, Fabiola"],["dc.contributor.author","Nogueira-López, Guillermo"],["dc.contributor.author","Rostás, Michael"],["dc.contributor.author","Lawry, Robert"],["dc.contributor.author","Brown, Chris"],["dc.contributor.author","Hampton, John"],["dc.contributor.author","Steyaert, Johanna M."],["dc.contributor.author","Müller, Caroline"],["dc.contributor.author","Mendoza-Mendoza, Artemio"],["dc.date.accessioned","2021-08-12T07:45:15Z"],["dc.date.available","2021-08-12T07:45:15Z"],["dc.date.issued","2021"],["dc.description.abstract","The interactions of crops with root-colonizing endophytic microorganisms are highly relevant to agriculture, because endophytes can modify plant resistance to pests and increase crop yields. We investigated the interactions between the host plant Zea mays and the endophytic fungus Trichoderma virens at 5 days postinoculation grown in a hydroponic system. Wild-type T. virens and two knockout mutants, with deletion of the genes tv2og1 or vir4 involved in specialized metabolism, were analyzed. Root colonization by the fungal mutants was lower than that by the wild type. All fungal genotypes suppressed root biomass. Metabolic fingerprinting of roots, mycelia, and fungal culture supernatants was performed using ultrahigh performance liquid chromatography coupled to diode array detection and quadrupole time-of-flight tandem mass spectrometry. The metabolic composition of T. virens-colonized roots differed profoundly from that of noncolonized roots, with the effects depending on the fungal genotype. In particular, the concentrations of several metabolites derived from the shikimate pathway, including an amino acid and several flavonoids, were modulated. The expression levels of some genes coding for enzymes involved in these pathways were affected if roots were colonized by the ∆vir4 genotype of T. virens. Furthermore, mycelia and fungal culture supernatants of the different T. virens genotypes showed distinct metabolomes. Our study highlights the fact that colonization by endophytic T. virens leads to far-reaching metabolic changes, partly related to two fungal genes. Both metabolites produced by the fungus and plant metabolites modulated by the interaction probably contribute to these metabolic patterns. The metabolic changes in plant tissues may be interlinked with systemic endophyte effects often observed in later plant developmental stages. [Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY 4.0 International license ."],["dc.description.abstract","The interactions of crops with root-colonizing endophytic microorganisms are highly relevant to agriculture, because endophytes can modify plant resistance to pests and increase crop yields. We investigated the interactions between the host plant Zea mays and the endophytic fungus Trichoderma virens at 5 days postinoculation grown in a hydroponic system. Wild-type T. virens and two knockout mutants, with deletion of the genes tv2og1 or vir4 involved in specialized metabolism, were analyzed. Root colonization by the fungal mutants was lower than that by the wild type. All fungal genotypes suppressed root biomass. Metabolic fingerprinting of roots, mycelia, and fungal culture supernatants was performed using ultrahigh performance liquid chromatography coupled to diode array detection and quadrupole time-of-flight tandem mass spectrometry. The metabolic composition of T. virens-colonized roots differed profoundly from that of noncolonized roots, with the effects depending on the fungal genotype. In particular, the concentrations of several metabolites derived from the shikimate pathway, including an amino acid and several flavonoids, were modulated. The expression levels of some genes coding for enzymes involved in these pathways were affected if roots were colonized by the ∆vir4 genotype of T. virens. Furthermore, mycelia and fungal culture supernatants of the different T. virens genotypes showed distinct metabolomes. Our study highlights the fact that colonization by endophytic T. virens leads to far-reaching metabolic changes, partly related to two fungal genes. Both metabolites produced by the fungus and plant metabolites modulated by the interaction probably contribute to these metabolic patterns. The metabolic changes in plant tissues may be interlinked with systemic endophyte effects often observed in later plant developmental stages. [Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY 4.0 International license ."],["dc.identifier.doi","10.1094/MPMI-04-20-0081-R"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/88407"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-448"],["dc.relation.eissn","1943-7706"],["dc.relation.issn","0894-0282"],["dc.title","Insights into Metabolic Changes Caused by the Trichoderma virens –Maize Root Interaction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","615"],["dc.bibliographiccitation.journal","Frontiers in Microbiology"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Raad, Maya"],["dc.contributor.author","Glare, Travis R."],["dc.contributor.author","Brochero, Helena L."],["dc.contributor.author","Müller, Caroline"],["dc.contributor.author","Rostás, Michael"],["dc.date.accessioned","2019-07-09T11:50:46Z"],["dc.date.available","2019-07-09T11:50:46Z"],["dc.date.issued","2019"],["dc.description.abstract","The 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."],["dc.identifier.doi","10.3389/fmicb.2019.00615"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15996"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59826"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.haserratum","/handle/2/78460"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","630"],["dc.title","Transcriptional Reprogramming of Arabidopsis thaliana Defence Pathways by the Entomopathogen Beauveria bassiana Correlates With Resistance Against a Fungal Pathogen but Not Against Insects"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]