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Unraveling the nexus: Microplastics, antibiotics, and ARGs interactions, threats and control in aquaculture – A review
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This review examines how microplastics, antibiotics, and antibiotic resistance genes interact in aquaculture environments, where all three contaminants frequently co-occur. Researchers found that microplastics can absorb antibiotics and serve as surfaces where resistant bacteria thrive, potentially amplifying the spread of antibiotic resistance. The study emphasizes the need for better management strategies to control these combined pollutants in fish farming operations.
In recent years, aquaculture has expanded rapidly to address food scarcity and provides high-quality aquatic products. However, this growth has led to the release of significant effluents, containing emerging contaminants like antibiotics, microplastics (MPs), and antibiotic resistance genes (ARGs). This study investigated the occurrence and interactions of these pollutants in aquaculture environment. Combined pollutants, such as MPs and coexisting adsorbents, were widespread and could include antibiotics, heavy metals, resistance genes, and pathogens. Elevated levels of chemical pollutants on MPs could lead to the emergence of resistance genes under selective pressure, facilitated by bacterial communities and horizontal gene transfer (HGT). MPs acted as vectors, transferring pollutants into the food web. Various technologies, including membrane technology, coagulation, and advanced oxidation, have been trialed for pollutants removal, each with its benefits and drawbacks. Future research should focus on ecologically friendly treatment technologies for emerging contaminants in aquaculture wastewater. This review provided insights into understanding and addressing newly developing toxins, aiming to develop integrated systems for effective aquaculture wastewater treatment.
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Interactions of microplastics and antibiotic resistance genes and their effects on the aquaculture environments
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This review explores the relationship between microplastics and antibiotic resistance genes in aquaculture environments. Researchers found that microplastics can serve as surfaces where antibiotic-resistant bacteria thrive and exchange resistance genes, potentially accelerating the spread of antibiotic resistance in fish farms and surrounding waterways.
Interactions and associated resistance development mechanisms between microplastics, antibiotics and heavy metals in the aquaculture environment
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This review explores how microplastics, antibiotics, and heavy metals interact in aquaculture environments to promote antibiotic resistance. Researchers found that microplastics can serve as carriers for both antibiotics and metals, creating hotspots where bacteria are more likely to develop resistance genes. The study underscores the compounding ecological and human health risks when these three types of pollutants co-exist in fish farming settings.
Microplastics and antibiotic resistance genes as rising threats: Their interaction represents an urgent environmental concern
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This review examines how microplastics interact with antibiotics and antibiotic-resistant bacteria in the environment, creating a combined pollution threat. Microplastics can absorb antibiotics onto their surface and serve as platforms where bacteria exchange resistance genes. This interaction could accelerate the spread of antibiotic resistance, making infections harder to treat and posing a growing public health risk.
Insight into combined pollution of antibiotics and microplastics in aquatic and soil environment: Environmental behavior, interaction mechanism and associated impact of resistant genes
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This review examines the combined pollution created when microplastics absorb antibiotics in water and soil environments. Researchers found that microplastics can concentrate antibiotics on their surfaces, and this combination promotes the spread of antibiotic-resistant genes in microbial communities. The study highlights that the interaction between these two emerging pollutants may pose greater environmental and health risks than either one alone.
The nexus of microplastics, food and antimicrobial resistance in the context of aquatic environment: Interdisciplinary linkages of pathways
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This review examines how microplastics in aquatic environments serve as surfaces where bacteria can grow, share antibiotic resistance genes, and then enter the food chain through contaminated seafood. The combination of microplastic pollution and antimicrobial resistance creates a compounding threat, as resistant bacteria riding on plastic particles can survive water treatment and reach humans. The authors call for interdisciplinary research connecting environmental science and public health to address this growing risk.
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