Genetic determinants of endophytism in the Arabidopsis root mycobiome

Fantin Mesny, Shingo Miyauchi, Thorsten Thiergart, Brigitte Pickel, Lea Atanasova, Magnus Karlsson, Bruno Hüttel, Kerrie W. Barry, Sajeet Haridas, Cindy Chen, Diane Bauer, William Andreopoulos, Jasmyn Pangilinan, Kurt LaButti, Robert Riley, Anna Lipzen, Alicia Clum, Elodie Drula, Bernard Henrissat, Annegret Kohler, Igor V. Grigoriev, Francis M. Martin () and Stéphane Hacquard ()
Additional contact information
Fantin Mesny: Max Planck Institute for Plant Breeding Research
Shingo Miyauchi: Max Planck Institute for Plant Breeding Research
Thorsten Thiergart: Max Planck Institute for Plant Breeding Research
Brigitte Pickel: Max Planck Institute for Plant Breeding Research
Lea Atanasova: Vienna University of Technology
Magnus Karlsson: Swedish University of Agricultural Sciences
Bruno Hüttel: Max Planck Institute for Plant Breeding Research
Kerrie W. Barry: Lawrence Berkeley National Laboratory
Sajeet Haridas: Lawrence Berkeley National Laboratory
Cindy Chen: Lawrence Berkeley National Laboratory
Diane Bauer: Lawrence Berkeley National Laboratory
William Andreopoulos: Lawrence Berkeley National Laboratory
Jasmyn Pangilinan: Lawrence Berkeley National Laboratory
Kurt LaButti: Lawrence Berkeley National Laboratory
Robert Riley: Lawrence Berkeley National Laboratory
Anna Lipzen: Lawrence Berkeley National Laboratory
Alicia Clum: Lawrence Berkeley National Laboratory
Elodie Drula: INRAE, USC1408 Architecture et Fonction des Macromolécules Biologiques
Bernard Henrissat: King Abdulaziz University
Annegret Kohler: Université de Lorraine, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement, UMR Interactions Arbres/Microorganismes, Centre INRAE Grand Est-Nancy
Igor V. Grigoriev: Lawrence Berkeley National Laboratory
Francis M. Martin: Université de Lorraine, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement, UMR Interactions Arbres/Microorganismes, Centre INRAE Grand Est-Nancy
Stéphane Hacquard: Max Planck Institute for Plant Breeding Research

Nature Communications, 2021, vol. 12, issue 1, 1-15

Abstract: Abstract The roots of Arabidopsis thaliana host diverse fungal communities that affect plant health and disease states. Here, we sequence the genomes of 41 fungal isolates representative of the A. thaliana root mycobiota for comparative analysis with other 79 plant-associated fungi. Our analyses indicate that root mycobiota members evolved from ancestors with diverse lifestyles and retain large repertoires of plant cell wall-degrading enzymes (PCWDEs) and effector-like small secreted proteins. We identify a set of 84 gene families associated with endophytism, including genes encoding PCWDEs acting on xylan (family GH10) and cellulose (family AA9). Transcripts encoding these enzymes are also part of a conserved transcriptional program activated by phylogenetically-distant mycobiota members upon host contact. Recolonization experiments with individual fungi indicate that strains with detrimental effects in mono-association with the host colonize roots more aggressively than those with beneficial activities, and dominate in natural root samples. Furthermore, we show that the pectin-degrading enzyme family PL1_7 links aggressiveness of endophytic colonization to plant health.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-27479-y

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DOI: 10.1038/s41467-021-27479-y

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