Metabolic interaction models recapitulate leaf microbiota ecology


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Date

2023-07-07

Publication Type

Journal Article

ETH Bibliography

yes

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Data

Abstract

Resource allocation affects the structure of microbiomes, including those associated with living hosts. Understanding the degree to which this dependency determines interspecies interactions may advance efforts to control host-microbiome relationships. We combined synthetic community experiments with computational models to predict interaction outcomes between plant-associated bacteria. We mapped the metabolic capabilities of 224 leaf isolates from Arabidopsis thaliana by assessing the growth of each strain on 45 environmentally relevant carbon sources in vitro. We used these data to build curated genome-scale metabolic models for all strains, which we combined to simulate >17,500 interactions. The models recapitulated outcomes observed in planta with >89% accuracy, highlighting the role of carbon utilization and the contributions of niche partitioning and cross-feeding in the assembly of leaf microbiomes.

Publication status

published

Editor

Book title

Journal / series

Volume

381 (6653)

Pages / Article No.

42

Publisher

AAAS

Event

Edition / version

Methods

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Geographic location

Date collected

Date created

Subject

Organisational unit

03740 - Vorholt, Julia / Vorholt, Julia check_circle

Notes

Funding

668991 - Structure function relationships of the phyllosphere microbiota (EC)
-180575 - NCCR Microbiomes SNF (SNF)

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