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March 18, 2026Environmental Microbiology

Organic Fertiliser Additions Promote Transformation of Extracellular Antibiotic Resistance Genes to Soil Bacteria

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Authors

WLWei LiuWXWan‐Ying XieKHK. Huang

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Overview

Research shows organic fertiliser increases antibiotic resistance gene transfer in bacteria, highlighting soil health risks.

Key Points

  • This research examines how organic fertiliser affects the transfer of antibiotic resistance genes to soil bacteria.
  • Examined transformation frequency of plasmid-borne antibiotic resistance genes in sterile and unsterile soils.
  • Used Acinetobacter baylyi as a model organism and assessed its transformation in sterile conditions.
  • Investigated the effects of organic fertiliser amendments on bacterial competence and HGT pathways.
  • Organic fertiliser significantly increased the transformation frequency of extracellular antibiotic resistance genes.
  • Transformation occurred across six bacterial phyla, notably Pseudomonadota and Actinobacteria.
  • Most detected transformants were new to the ability of acquiring extracellular DNA through natural transformation.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/69ba429c4e9516ffd37a30a8https://doi.org/10.1111/1462-2920.70273
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