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20 resultsShowing papers similar to Ecological risks of combination of multiple pollutants at environmentally relevant concentrations: Insights from the changes in life history traits, gut microbiota, and transcriptomic responses in Daphnia magna
ClearCombined Effects of Polystyrene Nanoplastics and Enrofloxacin on the Life Histories and Gut Microbiota of Daphnia magna
Researchers exposed Daphnia magna to polystyrene nanoplastics and the antibiotic enrofloxacin alone and in combination, measuring life history traits and gut microbiota responses. Both stressors individually reduced survival and reproduction, and combined exposure altered the taxonomic composition and metabolic function of gut microbiota more than either contaminant alone.
Multi-omics characterisation of Daphnia magna exposed to PFAS and microplastics: transcriptome and gut microbiome datasets
Researchers generated a multi-omics dataset from Daphnia magna exposed to environmentally relevant concentrations of PFOS, PFOA, and PET microplastics, integrating gut microbiome 16S rRNA profiling and whole-organism transcriptomes to enable systems-level investigation of host-microbiome interactions under complex contaminant stress.
Combined effect of microplastics and tire particles on Daphnia magna: Insights from physiological and transcriptomic responses
Researchers investigated the combined effects of microplastics and tire particles on the water flea Daphnia magna, finding that the mixture triggered significant oxidative stress at environmentally relevant concentrations. Transcriptomic analysis revealed upregulation of antioxidant and metabolic stress genes, while energy reserves like glycogen were affected. The study suggests that co-exposure to these common freshwater pollutants may pose greater ecological risks than either particle type alone.
The Effects of Single and Combined Stressors on Daphnids—Enzyme Markers of Physiology and Metabolomics Validate the Impact of Pollution
Researchers used daphnids to assess the impact of eight chemicals individually and as a mixture, finding that composite mixtures significantly enhanced toxicity and that enzyme markers combined with metabolomics can sensitively detect pollution effects.
Impacts of microplastics and pesticides on Daphnia
Researchers investigated the combined and individual impacts of microplastics and pesticides on Daphnia magna, a model crustacean widely used in freshwater ecotoxicology, to assess how these co-occurring pollutants affect aquatic ecosystem health. The study examined survival, reproduction, and physiological responses in D. magna exposed to varying concentrations of both stressors under controlled conditions.
Multi stress system: Microplastics in freshwater and their effects on host microbiota
This study examined how combined exposure to microplastics and organic chemical pollutants affects freshwater organisms through a multi-stress approach, focusing on gut microbiome changes as an indicator. Microplastic exposure in combination with other pollutants altered microbiome composition more than either stressor alone, with potential consequences for host fitness and disease resistance.
Meta-analysis unravels the complex combined toxicity of microplastics and antibiotics in aquatic ecosystems
A meta-analysis of 730 datasets found that microplastics amplify antibiotic accumulation in aquatic organisms and worsen effects on growth, development, and immune function, but paradoxically appear to mitigate reproductive toxicity from antibiotics. The impact depends on biological response pathway, microplastic concentration, antibiotic properties, and exposure time, with an inverse relationship between antibiotic toxicity and both microplastic concentration and exposure duration.
Metabolomic analysis of combined exposure to microplastics and methylmercury in the brackish water flea Diaphanosoma celebensis
Combined exposure of the brackish water flea Diaphanosoma celebensis to microplastics and methylmercury produced metabolomic disruptions greater than either pollutant alone, with the combination altering amino acid metabolism, energy pathways, and oxidative stress markers. The study provides molecular-level evidence that microplastic-mercury co-contamination poses synergistic risks to aquatic invertebrates.
Comparison of fitness effects in the earthworm Eisenia fetida after exposure to single or multiple anthropogenic pollutants
Researchers compared single and combined pollutant exposures on the earthworm Eisenia fetida, finding that mixtures of pesticides, heavy metals, particulate matter, and microplastics can produce synergistic negative effects on survival and reproduction beyond individual pollutant impacts.
Effects of Exposure to Cadmium, Microplastics, and Their Mixture on Survival, Growth, Feeding, and Life History of Daphnia magna
Researchers examined how polyethylene microplastics altered cadmium toxicity to Daphnia magna, finding that microplastic co-exposure modified cadmium bioavailability and affected survival, growth, feeding rates, and reproductive outcomes in this ecologically important species.
Changes in population fitness and gene co-expression networks reveal the boosted impact of toxic cyanobacteria on Daphnia magna through microplastic exposure
Researchers found that exposing the water flea Daphnia magna to both toxic cyanobacteria and microplastics together produced worse health effects than either stressor alone, reducing population fitness and altering gene expression patterns. The study suggests that as plastic pollution and harmful algal blooms increasingly overlap in lakes and rivers, aquatic organisms may face compounding threats that are greater than the sum of their parts.
Long-term effects of lithium and lithium-microplastic mixtures on the model species Daphnia magna: Toxicological interactions and implications to ‘One Health’
Researchers investigated long-term effects of lithium and lithium-microplastic mixtures on Daphnia magna, finding that combined exposure produced toxicological interactions different from individual exposures, with implications for freshwater ecosystem health under a One Health framework.
Fate and effects of microplastics in combination with pharmaceuticals and endocrine disruptors in freshwaters: Insights from a microcosm experiment
Researchers conducted a microcosm experiment exposing moss and caddisflies to microplastics combined with pharmaceuticals and endocrine disruptors, finding that microplastics can alter the fate and biological effects of co-occurring chemical contaminants in freshwater ecosystems.
Combined effects of microplastics and antibiotic-resistant bacteria on Daphnia magna growth and expression of functional genes
Researchers tested the combined effects of microplastics and antibiotic-resistant bacteria on tiny freshwater organisms called Daphnia magna. They found that polystyrene microplastics colonized with resistant Shigella bacteria were ingested and trapped in the organisms' intestines, causing changes in body size, reproduction, and gene expression. The study suggests that microplastics carrying antibiotic-resistant bacteria may pose amplified ecological risks to aquatic food chains.
A combined toxicological impact on Artemia salina caused by the presence of dust particles, microplastics from cosmetics, and paracetamol
Researchers exposed brine shrimp to a combination of dust particles, cosmetic microplastics, and paracetamol to study their combined toxicity. The findings indicate that multiple pollutants together caused greater harm than any single pollutant alone, reducing hatching rates, survival, and antioxidant defenses, which highlights how real-world mixtures of contaminants can amplify damage to aquatic life.
The Stressful Effects of Microplastics Associated With Chromium (VI) on the Microbiota of Daphnia Magna
Researchers exposed Daphnia magna to microplastic beads and chromium (VI) individually and in combination, finding that combined exposure increased mortality to 74% compared to 13% for microplastics alone and 30% for low-dose chromium alone. Microbial diversity in both the host and surrounding water was altered by individual and combined exposures, demonstrating microplastic and heavy metal interactions affect both host survival and microbiome health.
Toxicological implications of emerging pollutants on aquatic organisms
Researchers reviewed how a broad range of emerging pollutants — including microplastics, pharmaceuticals, pesticides, and heavy metals — harm aquatic organisms like fish, amphibians, and molluscs. Evidence shows these pollutants trigger oxidative stress, disrupt hormones, impair reproduction, and reduce biodiversity, with the review calling for stronger regulations, better wastewater treatment, and more research on the combined effects of multiple pollutants.
Action of Surfactants in Driving Ecotoxicity of Microplastic-Nano Metal Oxides Mixtures: A Case Study on Daphnia magna under Different Nutritional Conditions
This study tested how surfactants (found in detergents and cleaning products) interact with microplastics and metal oxide nanoparticles to affect the toxicity of these combined pollutants on water fleas (Daphnia magna). Surfactants increased the toxicity of microplastic-nanoparticle mixtures, and the effect varied with the age and nutritional status of the test organisms. This highlights how the complex real-world mixture of pollutants in waterways can be more harmful than any single contaminant alone.
Study of the toxicological effects of emerging contaminants on Daphnia similis associating polyethylene microplastics with the agrochemical imidacloprid.
Brazilian researchers tested the ecotoxicological effects of combining polyethylene microplastics with the insecticide imidacloprid on the freshwater crustacean Daphnia, finding combined exposures were more toxic than either pollutant alone. These results suggest that microplastics and pesticides together pose greater risks to aquatic organisms than studies of single pollutants indicate.
Assessment of intake and effect of microplastics and its combination with metals in experimental (Daphnia magna) and environmental conditions (freshwater fish)
Researchers assessed the intake and effects of microplastics and their combination with metals using Daphnia magna as an experimental model and freshwater fish under environmental conditions, investigating how microplastics adsorb and transport harmful metals in freshwater systems.