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The plastisphere paradox: microplastics as engines of antimicrobial resistance and hosts for polymer degraders
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Tiny plastic particles floating in our environment aren't just pollution, they're also floating "hotels" for bacteria, some of which are antibiotic-resistant and can swap resistance genes with each other. This review of existing research explains that while some of these plastic-dwelling microbes could help break down plastic waste (a potential win), using them for cleanup also risks spreading antibiotic resistance further into ecosystems and, potentially, back to humans. The takeaway: microplastics may be quietly helping antibiotic-resistant germs multiply and spread, so any plans to use plastic-eating bacteria for cleanup need
Microplastics (MPs) have emerged as serious ecological pollutants that harbor diverse microbial communities in their biofilm ecosystem termed as plastisphere. This community serves as a reservoir for antibiotic resistance genes (ARGs), antimicrobial resistant bacteria (ARB) as well as other microorganisms involved in pollutant degradation. However, the dynamic interactions between antimicrobial resistance (AMR) and bioremediation in the plastisphere community are not well deciphered. This review examines the dual role of MPs as ARG vectors as well as emerging platforms for microplastic and other pollutant bioremediation. Plastisphere biofilms act as a hub for horizontal gene transfer (HGT), driven by active microbial interfaces, extracellular polymeric matrices, and co-selection pressures exerted due to antibiotics, heavy metals, and biocides. Metagenomics and metatranscriptomics approaches reveal the cohabitation of functional genes associated with both AMR and microplastic degradation, mediated by enzymes and multifunctional molecules such as biosurfactants. However, bioaugmentation using plastisphere derived microbial population risks HGT of ARGs or virulence factors to non-native and indigenous microorganisms. Hence, such applications call for stringent biosafety assessments to prevent inadvertent and unwanted ARG dissemination. By integrating ecological perils with advanced biotechnological opportunities, this review underlines the plastisphere paradox and highlights the demand for multiomics-driven One Health approaches to bring forth the interconnected challenges of MPs pollution, AMR, and bioremediation. This exploration yields promising avenues for developing integrated strategies that can address both persistent microplastic pollution and AMR spread concomitantly.
More Papers Like This
The plastisphere: from microbial pollution to biodegradable solution
AI summary Read the abstract
Tiny bits of plastic pollution floating around aren't just inert junk—they've become floating homes for microbes, including harmful germs and antibiotic-resistant bacteria that can spread more easily and potentially affect human health. This review pulls together existing research showing that while these plastic-dwelling microbe communities pose risks, some of them can also break down plastic, and scientists are working on ways to harness the helpful microbes while screening out the dangerous ones. The takeaway: microplastics may be quietly helping germs travel and multiply, but the same phenomenon could eventually help us clean up plastic pollution more safely.
Environmental impacts of microplastic and role of plastisphere microbes in the biodegradation and upcycling of microplastic
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This review covers how microplastics in the environment interact with other pollutants and the microbes that colonize plastic surfaces, known as the "plastisphere." While some of these microbes can break down plastics, the biofilms also harbor harmful bacteria and antibiotic-resistant genes that can spread to the surrounding environment. This means microplastics serve as floating platforms for dangerous germs, creating additional health risks beyond the plastic particles themselves.
Mini review on plastisphere: exploring biodiversity, risks, and biodegradation potential and their impact on aquatic ecosystem health
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Floating bits of plastic in our oceans and rivers aren't just trash, they become tiny floating homes for bacteria, some of which can spread antibiotic resistance and make infections harder to treat. This review pulls together existing research showing that while this "plastisphere" poses real health risks, some of these same bacteria produce enzymes that can actually break down plastic, hinting at a possible eco-friendly cleanup tool for the future. Scientists still need better tools and more research before this potential can be turned into real solutions.
[Pollution Situation and Transmission Risks of Antibiotic Resistance within the Plastisphere in the Aquatic Environment].
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This review examines how microplastics serve as a new ecological niche for antibiotic-resistant bacteria in aquatic environments, creating what researchers call the plastisphere. Microplastics interact with heavy metals, antibiotics, and other pollutants while migrating through water systems and food chains, potentially accelerating the spread of antibiotic resistance genes. The study highlights the plastisphere as a hotspot for resistance gene transfer, posing threats to both human health and urban ecosystems.
Microplastic-mediated antimicrobial resistance in aquatic environments: plastisphere dynamics, ecological risks, and mitigation strategies
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Tiny plastic particles floating in water aren't just pollution—they act like rafts where bacteria gather and swap genes that make them resistant to antibiotics, potentially making infections harder to treat. This review paper rounds up existing research on how this happens and compares different water treatment methods (like filtration and chemical treatments) that could remove both the plastics and the resistant bacteria at once. The takeaway: tackling microplastic pollution in our water systems may be an important, underappreciated tool for slowing the spread of antibiotic-resistant infections.
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