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Phytotoxic effects and rhizosphere microecological responses of peanut to oxytetracycline and microplastic co-exposure
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When peanuts grow in soil contaminated with both an antibiotic (oxytetracycline) and microplastics, the combination stresses the plants and disrupts the helpful bacteria living around their roots more than either pollutant alone. This matters because farm soils increasingly contain both types of pollution from things like manure and plastic waste, and understanding how they harm crops together — not just separately — is key to protecting our food supply and figuring out what ends up on our plates.
= 0.619, p = 0.004). Network analysis further identified key regulatory nodes (Nocardioides and taxifolin) that bridge the associations between the rhizosphere microenvironment and plant growth traits. This study demonstrates that microbial shifts and metabolic adjustments are essential in mediating plant responses to multi-pollutant stress, providing crucial theoretical and mechanistic insights for global agricultural environmental risk assessment under co-contamination scenarios.
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Polystyrene and Azithromycin Co-Contamination: Comparative Analysis of Microbial Shifts in the Rhizosphere vs. Bulk Soil under Wheat Growth
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Scientists found that when tiny plastic particles and a common antibiotic mix together in soil, they disrupt beneficial microbes around wheat roots more than either pollutant does alone. This matters because healthy soil microbes help crops grow and cycle nutrients, so this combined pollution could quietly affect food production as both microplastics and pharmaceuticals build up in farmland over time.
Combined effects of oxytetracycline and microplastic on wheat seedling growth and associated rhizosphere bacterial communities and soil metabolite profiles
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Researchers examined how the antibiotic oxytetracycline combined with polyethylene microplastics affects wheat seedling growth and soil microbial communities. They found that high concentrations of the antibiotic combined with microplastics significantly reduced seedling growth and altered the bacterial communities around the roots. The study reveals that the co-presence of antibiotics and microplastics in agricultural soils may create compounding negative effects on crop health.
Combined contamination of microplastic and antibiotic alters the composition of microbial community and metabolism in wheat and maize rhizosphere soil
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A study found that when soil is contaminated with both microplastics and antibiotics together, the damage to wheat and maize seedlings is worse than from either contaminant alone, with increased root oxidative stress and disrupted soil bacterial communities. This combined contamination, common in agricultural soils treated with plastic mulch and livestock manure, could affect crop health and food quality.
Effects of co-exposure of antibiotic and microplastic on the rhizosphere microenvironment of lettuce seedlings
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Researchers examined how the combination of antibiotics and polyethylene microplastics in agricultural soil affects lettuce seedling growth and the microbial community around plant roots. They found that combined exposure altered soil bacterial diversity, changed the chemical profile of root-zone metabolites, and affected nutrient cycling differently than either contaminant alone. The study highlights the compounding environmental risks when antibiotics from animal manure and microplastics from plastic films co-exist in farmland soils.
Combined effects of microplastics and organic pollutants on crops: a meta-analysis
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Tiny plastic particles in soil don't just harm crops on their own, when combined with things like antibiotics or pesticides, they can shrink plant growth and cause crops to soak up nearly twice as much antibiotic residue in their edible parts. Since this study used lab experiments with higher-than-typical pollutant levels over short time periods, more real-world research is needed, but the findings raise a flag: microplastic pollution in farm soil could be making other chemical contaminants in our food worse, not just adding a separate problem.
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