Antimicrobial Resistance (AMR): From the Environment to Health

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Antimicrobial Agents and Resistance".

Deadline for manuscript submissions: 31 March 2026 | Viewed by 844

Special Issue Editor

Australian Centre for Water and Environmental Biotechnology (formerly AWMC), The University of Queensland, Brisbane, QLD 4072, Australia
Interests: antimicrobial resistance; bacterial evolution; plasmid; horizontal gene transfer; microbial interactions; pathogens; disinfection; surveillance
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Antimicrobial resistance (AMR) is a growing global threat to public health, food security, and sustainable development. The emergence and spread of AMR are driven by a complex interplay of microbial adaptation, environmental pressures, and anthropogenic activities. Understanding the evolutionary pathways of AMR—including mutation, horizontal gene transfer, and selective enrichment—and their robust monitoring are critical for predicting resistance trends and informing intervention strategies.

Environmental factors such as chronic exposure to sub-inhibitory concentrations of antibiotics, disinfectants, and pollutants play a key role in shaping the adaptive landscape of resistance. To track these dynamics, advanced monitoring technologies, including quantitative PCR, metagenomic sequencing, resistome profiling, and machine learning analytics, enable comprehensive surveillance across clinical, environmental, and agricultural contexts. These tools allow for the comprehensive surveillance of resistance genes across environmental, clinical, and agricultural settings. However, monitoring must be complemented by effective control technologies. Novel approaches—such as advanced oxidation processes, targeted antimicrobial peptides, nanomaterials, bacteriophages, and resistome-aware water treatment systems—offer promising solutions to reduce the AMR burden at the source. Integrating these tools within One Health frameworks can enable early detection, source identification, and tailored interventions. Coordinated efforts in AMR evolution research, real-time monitoring, and proactive control technologies are essential to contain resistance and safeguard global health and environmental sustainability.

This Special Issue explores the interconnectedness of environmental AMR emergence, monitoring, evolution, and control, drawing on insights from microbiology, environmental engineering, molecular biology, and One Health approaches. It aims to highlight both mechanistic understanding and technological innovations in tracking and mitigating AMR from environmental reservoirs to human exposure. By bridging environmental and health disciplines, we hope to inform more effective surveillance frameworks, regulatory strategies, and sustainable interventions that address AMR at its environmental roots. Topics of particular interest include, but are not limited to, the following:

  1. Environmental reservoirs, evolution, and transmission pathways of AMR.
  2. Surveillance strategies and resistome profiling in environmental matrices.
  3. Bacterial evolution of AMR and virulence traits.
  4. Innovative control and mitigation strategies for AMR in water, soil, and waste systems.
  5. One Health frameworks linking environmental AMR to human and animal health.
  6. Policy, risk assessment, and regulatory perspectives on environmental AMR.

Reviews, original research, and communications will be welcome.

Dr. Zhigang Yu
Guest Editor

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Keywords

  • antimicrobial resistance (AMR)
  • environmental resistome
  • horizontal gene transfer
  • resistance evolution
  • virulence and adaptation
  • One Health
  • AMR surveillance
  • disinfection
  • metagenomics
  • wastewater-based epidemiology

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Published Papers (2 papers)

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Research

16 pages, 2545 KB  
Article
Migration Characteristics of Manure-Derived Antibiotic-Resistant Bacteria in Vegetables Under Different Soil Types
by Tingting Song, Changxiong Zhu, Honghui Teng, Binxu Li, Shuang Zhong, Yan Qin, Jiawei He and Hongna Li
Microorganisms 2025, 13(10), 2398; https://doi.org/10.3390/microorganisms13102398 - 20 Oct 2025
Viewed by 216
Abstract
The application of livestock manure can introduce antibiotic-resistant bacteria (ARB) into soil–vegetable systems, potentially shaping the antibiotic resistance profiles of plants. This study investigated the effects of manure containing chlortetracycline (CTC) on antibiotic resistance in pakchoi grown in three distinct soil types (black [...] Read more.
The application of livestock manure can introduce antibiotic-resistant bacteria (ARB) into soil–vegetable systems, potentially shaping the antibiotic resistance profiles of plants. This study investigated the effects of manure containing chlortetracycline (CTC) on antibiotic resistance in pakchoi grown in three distinct soil types (black soil, fluvo-aquic soil, and red soil). The results demonstrated that CTC-manure application significantly increased the relative abundance of CTC-resistant endophytic bacteria (CREB), with the magnitude of the increase following the order: black soil (235.43%) > fluvo-aquic soil (64.5%) > red soil (10.68%). Furthermore, the presence of CTC promoted the proliferation of Acinetobacter and increased the abundance of potential pathogens (such as Klebsiella, Rhodococcus, and Corynebacterium), thereby elevating the risk of antibiotic resistance transmission. Metabolomic analysis revealed that CTC induced the most substantial metabolic alterations in pakchoi grown in red soil. Correlation analysis indicated that the CREB community structure was primarily shaped by soil properties, including total nitrogen, total phosphorus, and organic matter, and was significantly correlated with indigenous soil ARB (Pseudomonas, Bacillus, and Stenotrophomonas). This study elucidates the mechanisms underlying manure-driven antibiotic resistance dissemination in vegetable production systems and offers a theoretical foundation for developing agricultural practices to mitigate associated risks. Full article
(This article belongs to the Special Issue Antimicrobial Resistance (AMR): From the Environment to Health)
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18 pages, 5498 KB  
Article
Dose-Dependent Effect of Tilmicosin Residues on ermA Rebound Mediated by IntI1 in Pig Manure Compost
by Pengfei Zhang, Qingnan Mo, Chang Liu, Qing Liu, Jiaojiao Xu, Yan Wang, Xin Wen and Yinbao Wu
Microorganisms 2025, 13(9), 2123; https://doi.org/10.3390/microorganisms13092123 - 11 Sep 2025
Viewed by 449
Abstract
The impact of varying antibiotic residue levels on antibiotic resistance gene (ARG) removal during composting is still unclear. This study investigated the impact of different residue levels of tilmicosin (TIM), a common veterinary macrolide antibiotic, on ARG removal during pig manure composting. Three [...] Read more.
The impact of varying antibiotic residue levels on antibiotic resistance gene (ARG) removal during composting is still unclear. This study investigated the impact of different residue levels of tilmicosin (TIM), a common veterinary macrolide antibiotic, on ARG removal during pig manure composting. Three groups were used: the CK group (no TIM), the L group (246.49 ± 22.83 mg/kg TIM), and the H group (529.99 ± 16.15 mg/kg TIM). Composting removed most targeted macrolide resistance genes (MRGs) like ereA, ermC, and ermF (>90% removal), and reduced ermB, ermX, ermQ, acrA, acrB, and mefA (30–70% removal). However, ermA increased in abundance. TIM altered compost community structure, driving succession through a deterministic process. At low doses, TIM reduced MRG–bacteria co-occurrence, with horizontal gene transfer via intI1 being the main cause of ermA rebound. In conclusion, composting reduces many MRG levels in pig manure, but the persistence and rebound of genes like ermA reveal the complex interactions between composting conditions and microbial gene transfer. Full article
(This article belongs to the Special Issue Antimicrobial Resistance (AMR): From the Environment to Health)
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