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January 17, 2026mSphereOpen Access

Acinetobacter enrichment shapes composition and function of the bacterial microbiota of field-grown tomato plants

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Authors

SRSenga RobertsonAMAlexandros MoscaSASaira Ashraf

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Overview

Field analysis reveals Acinetobacter shapes microbiota function in tomato plants, suggesting implications for soil health.

Key Points

  • The study aims to explore how Acinetobacter enrichment impacts the bacterial microbiota associated with tomato plants and its functional significance.
  • Used a 'lab-in-the-field' approach for microbiota analysis of field-grown tomatoes.
  • Applied high-throughput amplicon sequencing to categorize microbiota into phyllosphere, rhizosphere, and root interior.
  • Employed shotgun metagenomics on rhizosphere samples to assess functional traits.
  • Identified a metagenome-assembled genome representative of Acinetobacter calcoaceticus.
  • Acinetobacter sp. was found to be a dominant member of the tomato microbiota.
  • Functional traits associated with Acinetobacter included nutrient mobilization, salinity adaptation, and antimicrobial resistance genes.
  • Plant-growth promotion traits such as phosphate solubilization and siderophore production were prevalent.
  • The presence of Acinetobacter was linked to improved stress resilience in tomato plants.

Cite This Study

Robertson et al. (2026) studied this question.

synapsesocial.com/papers/696b26d7d2a12237a934a177https://doi.org/10.1128/msphere.00842-25
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