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Santolamazza-Carbone, Serena; Durán-Otero, Mónica; Calviño-Cancela, María

Context dependency, co-introductions, novel mutualisms, and host shifts shaped the ectomycorrhizal fungal communities of the alien tree Eucalyptus globulus

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  • Medientyp: E-Artikel
  • Titel: Context dependency, co-introductions, novel mutualisms, and host shifts shaped the ectomycorrhizal fungal communities of the alien tree Eucalyptus globulus
  • Beteiligte: Santolamazza-Carbone, Serena; Durán-Otero, Mónica; Calviño-Cancela, María
  • Erschienen: Springer Science and Business Media LLC, 2019
  • Erschienen in: Scientific Reports
  • Sprache: Englisch
  • DOI: 10.1038/s41598-019-42550-x
  • ISSN: 2045-2322
  • Schlagwörter: Multidisciplinary
  • Entstehung:
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  • Beschreibung: <jats:title>Abstract</jats:title><jats:p>The identity and relevance of the ectomycorrhizal (ECM) fungal partners of <jats:italic>Eucalyptus globulus</jats:italic> was investigated in NW Spain, to detect which symbionts mainly support its invasiveness. Root tips of <jats:italic>E. globulus</jats:italic> and of three common native plant species (<jats:italic>Quercus robur</jats:italic>, <jats:italic>Pinus pinaster</jats:italic> and <jats:italic>Halimium lasianthum</jats:italic>) were collected in eucalypt plantations, <jats:italic>Q. robur</jats:italic> forests, <jats:italic>P. pinaster</jats:italic> plantations and shrublands. Fungal taxonomical identity was ascertained by use of rDNA and direct sequencing. We studied diversity, composition and colonization rate of the ECM fungal communities of <jats:italic>E. globulus</jats:italic> to determine if fungal assemblages are host specific (i.e. similar in different habitats) or more dependent on the neighbourhood context. We also identified the type of associations formed (i.e. co-introductions, familiar or novel associations). Twenty-six ECM taxa were associated with <jats:italic>E. globulus</jats:italic>. Most of them engaged in novel associations with eucalypts, whereas only three fungal species were co-introduced Australian aliens. Eucalypt fungal richness, diversity and colonization rate differed between habitats, being higher in native oak forests, whereas in shrublands <jats:italic>E. globulus</jats:italic> showed the lowest colonization rate and diversity. The Australian fungus <jats:italic>Descolea maculata</jats:italic> dominated the eucalypt fungal assemblage and also spread to the native host plants, in all the habitats, posing the risk of further co-invasion.</jats:p>
  • Zugangsstatus: Freier Zugang