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Plant Symbionts Are Engineers of the Plant-Associated Microbiome

Abstract : Plants interact throughout their lives with environmental microorganisms. These interactions determine plant development, nutrition, and fitness in a dynamic and stressful environment, forming the basis for the holobiont concept in which plants and plant-associated microbes are not considered as independent entities but as a single evolutionary unit. A primary open question concerns whether holobiont structure is shaped by its microbial members or solely by the plant. Current knowledge of plant–microbe interactions argues that the establishment of symbiosis directly and indirectly conditions the plant-associated microbiome. We propose to define the impact of the symbiont on the plant microbiome as the ‘symbiosis cascade effect’, in which the symbionts and their plant host jointly shape the plant microbiome.
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Stéphane Uroz, Pierre-Emmanuel Courty, P. Oger. Plant Symbionts Are Engineers of the Plant-Associated Microbiome. Trends in Plant Science, Elsevier, 2019, 24 (10), pp.905-916. ⟨10.1016/j.tplants.2019.06.008⟩. ⟨hal-02334474⟩

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