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Plastisphere as an eco-site for horizontal gene transfer: Enhancing antibiotic resistance in marine biofilms
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Effects and mechanism of microplastics on abundance and transfer of antibiotic resistance genes in the environment - A critical review
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Tiny plastic particles polluting our water, soil, and even the air don't just sit there, this review of existing research shows they can act like rafts that help bacteria pick up antibiotic-resistance genes and spread them more easily, including in our gut environments. That's concerning because it means microplastic pollution could be quietly fueling the growing problem of antibiotic-resistant infections, making it harder to treat illnesses in the future. The researchers reviewed how this happens but say scientists still don't fully understand all the mechanisms behind it, so more research is needed to address the risk.
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Researchers reviewed how microbial communities form biofilms on microplastics in aquatic environments — creating a unique man-made ecosystem called the plastisphere — and found that these biofilms significantly alter how microplastics move, transform, and affect other organisms in freshwater, marine, and wetland settings.
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Researchers examined how antibiotic resistance genes in the microplastic biofilm (plastisphere) evolve as MPs settle from water to sediment, finding that deposition in sediment reshapes ARG profiles and promotes horizontal gene transfer, amplifying resistance gene reservoirs in benthic environments.
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Researchers review evidence that microplastics act as carriers and hotspots for antibiotic resistance genes, influencing bacterial community composition in the environment and potentially accelerating the spread of antibiotic resistance — a dual threat to ecosystem and human health.
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Researchers investigated how microplastic surfaces in coastal environments develop biofilm communities, known as the plastisphere, and whether these biofilms enrich antibiotic resistance genes. The study found that incubation time, habitat type, and microplastic aging state all significantly influenced biofilm composition, and that aged microplastics accumulated more antibiotic resistance genes than new ones, suggesting microplastics may serve as vectors for spreading resistant bacteria.
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