Multitrophic interactions in the rhizosphere microbiome of wheat: from bacteria and fungi to protists

Maike Rossmann, Juan E. Pérez-Jaramillo, Vanessa N. Kavamura, Josiane B. Chiaramonte, Kenneth Dumack, Anna Maria Fiore-Donno, Lucas W. Mendes, Márcia M. C. Ferreira, Michael Bonkowski, Jos M. Raaijmakers, Tim H. Mauchline, Rodrigo Mendes (Co-auteur)

Onderzoeksoutput: Bijdrage aan wetenschappelijk tijdschrift/periodieke uitgaveArtikelWetenschappelijkpeer review

Samenvatting

Plants modulate the soil microbiota by root exudation assembling a complex rhizosphere microbiome with organisms spanning different trophic levels. Here, we assessed the diversity of bacterial, fungal and cercozoan communities in landraces and modern varieties of wheat. The dominant taxa within each group were the bacterial phyla Proteobacteria, Actinobacteria and Acidobacteria; the fungi phyla Ascomycota, Chytridiomycota and Basidiomycota; and the Cercozoa classes Sarcomonadea, Thecofilosea and Imbricatea. We showed that microbial networks of the wheat landraces formed a more intricate network topology than that of modern wheat cultivars, suggesting that breeding selection resulted in a reduced ability to recruit specific microbes in the rhizosphere. The high connectedness of certain cercozoan taxa to bacteria and fungi indicated trophic network hierarchies where certain predators gain predominance over others. Positive correlations between protists and bacteria in landraces were preserved as a subset in cultivars as was the case for the Sarcomonadea class with Actinobacteria. The correlations between the microbiome structure and plant genotype observed in our results suggest the importance of top-down control by organisms of higher trophic levels as a key factor for understanding the drivers of microbiome community assembly in the rhizosphere.
Originele taal-2Engels
Artikelnummerfiaa032
TijdschriftFEMS Microbiology Ecology
Volume96
Nummer van het tijdschrift4
Vroegere onlinedatum2020
DOI's
StatusGepubliceerd - 2020

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    Rossmann, M., Pérez-Jaramillo, J. E., Kavamura, V. N., Chiaramonte, J. B., Dumack, K., Fiore-Donno, A. M., Mendes, L. W., Ferreira, M. M. C., Bonkowski, M., Raaijmakers, J. M., Mauchline, T. H., & Mendes, R. (2020). Multitrophic interactions in the rhizosphere microbiome of wheat: from bacteria and fungi to protists. FEMS Microbiology Ecology, 96(4), [fiaa032]. https://doi.org/10.1093/femsec/fiaa032