Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Horizontal gene transfer and shifts in linked bacterial community composition are associated with maintenance of antibiotic resistance genes during food waste composting

Hanpeng Liao, Ville‐Petri Friman, Stefan Geisen, Qian Zhao, Peng Cui, Xiaomei Lü, Zhi Chen, Zhen Yu, Shungui Zhou

The Science of The Total Environment · 2018

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Summary

This 2018 study investigates the persistence of antibiotic resistance genes (ARGs) during food waste composting, a process relevant to nutrient recycling in agricultural systems. The authors suggest that horizontal gene transfer between bacteria and shifts in microbial community structure both contribute to the maintenance of ARGs throughout composting, as indicated by their title and journal focus. The findings have implications for understanding contamination risks when compost derived from food waste—which may contain resistant pathogens—is applied to agricultural soils.

UK applicability

The research is directly applicable to UK composting practice and policy, particularly as food waste recycling and compost use on farms are promoted for circular nutrient management. Understanding ARG persistence during composting is relevant to UK soil health initiatives and food safety standards, where compost quality and microbial safety are regulated.

Key measures

Antibiotic resistance gene abundance and diversity; bacterial community composition; horizontal gene transfer events; shifts in linked bacterial taxa during composting phases

Outcomes reported

The study examined how antibiotic resistance genes (ARGs) are maintained during food waste composting and the role of horizontal gene transfer and bacterial community shifts in this process. Researchers measured ARG abundance, bacterial community composition, and mechanisms of ARG persistence throughout the composting cycle.

Theme
Farming systems, soils & land use
Subject
Antimicrobial resistance
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
China
System type
Food supply chain
DOI
10.1016/j.scitotenv.2018.12.353
Catalogue ID
SNmov5kgcw-wvbw3a

Topic tags

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