Dissecting community structure in wild blueberry root and soil microbiome

Svetlana N. Yurgel, Gavin M. Douglas, Ashley Dusault, David Percival, Morgan G.I. Langille

Résultat de recherche: Articleexamen par les pairs

46 Citations (Scopus)

Résumé

A complex network of functions and symbiotic interactions between a eukaryotic host and its microbiome is a the foundation of the ecological unit holobiont. However, little is known about how the non-fungal eukaryotic microorganisms fit in this complex network of host-microbiome interactions. In this study, we employed a unique wild blueberry ecosystem to evaluate plant-associated microbiota, encompassing both eukaryotic and bacterial communities. We found that, while soil microbiome serves as a foundation for root microbiome, plant-influenced species sorting had stronger effect on eukaryotes than on bacteria. Our study identified several fungal and protist taxa, which are correlated with decreased fruit production in wild blueberry agricultural ecosystems. The specific effect of species sorting in root microbiome resulted in an increase in relative abundance of fungi adapted to plant-associated life-style, while the relative abundance of non-fungal eukaryotes was decreased along the soil-endosphere continuum in the root, probably because of low adaptation of these microorganisms to host-plant defense responses. Analysis of community correlation networks indicated that bacterial and eukaryotic interactions became more complex along the soil-endosphere continuum and, in addition to extensive mutualistic interactions, co-exclusion also played an important role in shaping wild blueberry associated microbiome. Our study identified several potential hub taxa with important roles in soil fertility and/or plant-microbe interaction, suggesting the key role of these taxa in the interconnection between soils and plant health and overall microbial community structure. This study also provides a comprehensive view of the role of non-fungal eukaryotes in soil ecosystem.

Langue d'origineEnglish
Numéro d'article1187
JournalFrontiers in Microbiology
Volume9
Numéro de publicationJUN
DOI
Statut de publicationPublished - juin 6 2018

Note bibliographique

Publisher Copyright:
© 2018 Yurgel, Douglas, Dusault, Percival and Langille.

ASJC Scopus Subject Areas

  • Microbiology
  • Microbiology (medical)

PubMed: MeSH publication types

  • Journal Article

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