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Source data and processed sequence data for: Microplastic ageing alters antibiotic resistance plasmid transfer beyond changes in bacterial colonization
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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 ran a microcosm experiment comparing how pristine versus aged microplastics influenced bacterial communities and antibiotic resistance gene (ARG) composition in the plastisphere and surrounding soil solution. Aged MPs enriched distinct ARGs and microbial taxa compared to pristine MPs, suggesting MP weathering intensifies the spread of antibiotic resistance in soils.
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