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A Synthetic Community Approach Reveals Plant Genotypes Affecting the Phyllosphere Microbiota

Open access
Bodenhausen, Natacha, Bortfeld-Miller, Miriam, Ackermann, Martin, Vorholt, Julia A.·2014·PLoS Genetics

Abstract

The identity of plant host genetic factors controlling the composition of the plant microbiota and the extent to which plant genes affect associated microbial populations is currently unknown. Here, we use a candidate gene approach to investigate host effects on the phyllosphere community composition and abundance. To reduce the environmental factors that might mask genetic factors, the model plant Arabidopsis thaliana was used in a gnotobiotic system and inoculated with a reduced complexity synthetic bacterial community composed of seven strains representing the most abundant phyla in the phyllosphere. From a panel of 55 plant mutants with alterations in the surface structure, cell wall, defense signaling, secondary metabolism, and pathogen recognition, a small number of single host mutations displayed an altered microbiota composition and/or abundance. Host alleles that resulted in the strongest perturbation of the microbiota relative to the wild-type were lacs2 and pec1. These mutants affect cuticle formation and led to changes in community composition and an increased bacterial abundance relative to the wild-type plants, suggesting that different bacteria can benefit from a modified cuticle to different extents. Moreover, we identified ein2, which is involved in ethylene signaling, as a host factor modulating the community's composition. Finally, we found that different Arabidopsis accessions exhibited different communities, indicating that plant host genetic factors shape the associated microbiota, thus harboring significant potential for the identification of novel plant factors affecting the microbiota of the communities.

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Metadata

Authors
Bodenhausen, N., Bortfeld-Miller, M., Ackermann, M., & Vorholt, J. A.
Venue
PLoS Genetics
Published
2014-04-17
Volume
10
Issue
4
Pages
e1004283
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W1990582630
Cited by
473
References
66
FWCI
32.08
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: A Synthetic Community Approach Reveals Plant Genotypes Affecting the Phyllosphere Microbiota. https://app.cochat.ai/papers/10.1371/journal.pgen.1004283
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Bodenhausen, N., Bortfeld-Miller, M., Ackermann, M., & Vorholt, J. A. (2014). A Synthetic Community Approach Reveals Plant Genotypes Affecting the Phyllosphere Microbiota. PLoS Genetics. https://doi.org/10.1371/journal.pgen.1004283

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