FERONIA restricts Pseudomonas in the rhizosphere microbiome via regulation of reactive oxygen species.
Nat Plants
; 7(5): 644-654, 2021 05.
Article
em En
| MEDLINE
| ID: mdl-33972713
ABSTRACT
Maintaining microbiome structure is critical for the health of both plants and animals. By re-screening a collection of Arabidopsis mutants affecting root immunity and hormone crosstalk, we identified a FERONIA (FER) receptor kinase mutant (fer-8) with a rhizosphere microbiome enriched in Pseudomonas fluorescens without phylum-level dysbiosis. Using microbiome transplant experiments, we found that the fer-8 microbiome was beneficial. The effect of FER on rhizosphere pseudomonads was largely independent of its immune scaffold function, role in development and jasmonic acid autoimmunity. We found that the fer-8 mutant has reduced basal levels of reactive oxygen species (ROS) in roots and that mutants deficient in NADPH oxidase showed elevated rhizosphere pseudomonads. The addition of RALF23 peptides, a FER ligand, was sufficient to enrich P. fluorescens. This work shows that FER-mediated ROS production regulates levels of beneficial pseudomonads in the rhizosphere microbiome.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fosfotransferases
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Microbiologia do Solo
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Pseudomonas fluorescens
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Espécies Reativas de Oxigênio
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Proteínas de Arabidopsis
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Rizosfera
Idioma:
En
Revista:
Nat Plants
Ano de publicação:
2021
Tipo de documento:
Article