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

Autor:	Rossmann M; Laboratory of Environmental Microbiology, Embrapa Environment, Rodovia SP 340 km 125.5, 13918-110, Jaguariúna SP, Brazil., Pérez-Jaramillo JE; Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW); Institute of Biology, Leiden University, Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands., Kavamura VN; Sustainable Agriculture Sciences, West Common, AL5 2JQ, Harpenden, Rothamsted Research, UK., Chiaramonte JB; Laboratory of Environmental Microbiology, Embrapa Environment, Rodovia SP 340 km 125.5, 13918-110, Jaguariúna SP, Brazil., Dumack K; Institute of Zoology & Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Zülpicher Straße 47b, 50674 Köln, Germany., Fiore-Donno AM; Institute of Zoology & Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Zülpicher Straße 47b, 50674 Köln, Germany., Mendes LW; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture CENA, University of Sao Paulo, Av. Centenário, 303, 13416-000, Piracicaba SP, Brazil., Ferreira MMC; Laboratory of Theoretical and Applied Chemometrics, Department of Chemistry, State University of Campinas (UNICAMP), Rua Josué de Castro, s/n, 13083-970, Campinas SP, Brazil., Bonkowski M; Institute of Zoology & Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Zülpicher Straße 47b, 50674 Köln, Germany., Raaijmakers JM; Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW); Institute of Biology, Leiden University, Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands., Mauchline TH; Sustainable Agriculture Sciences, West Common, AL5 2JQ, Harpenden, Rothamsted Research, UK., Mendes R; Laboratory of Environmental Microbiology, Embrapa Environment, Rodovia SP 340 km 125.5, 13918-110, Jaguariúna SP, Brazil.
Jazyk:	angličtina
Zdroj:	FEMS microbiology ecology [FEMS Microbiol Ecol] 2020 Apr 01; Vol. 96 (4).
DOI:	10.1093/femsec/fiaa032
Abstrakt:	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. (© FEMS 2020.)
Databáze:	MEDLINE
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