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20 resultsShowing papers similar to [Accumulation and Clearance of Polystyrene Microplastics in Brine Shrimp and the Responses of Microbiome and Metabolism].
ClearIngestion and bioaccumulation of polystyrene nanoplastics and their effects on the microalgal feeding of Artemia franciscana
Brine shrimp (Artemia franciscana) exposed to polystyrene nanoplastics ingested and bioaccumulated the particles, which also affected their feeding behavior on microalgae and caused changes in gut microbiota. These effects on a widely used aquaculture species raise concerns about nanoplastic contamination in marine food production.
Influence of Microplastics on the Growth and the Intestinal Microbiota Composition of Brine Shrimp
Researchers exposed brine shrimp to polyethylene and polystyrene microplastics and found that both types significantly reduced growth rates, with body length decreasing by 15-18%. The study also revealed that microplastic ingestion altered the gut microbiota composition, increasing microbial diversity and shifting the balance of key bacterial groups in the shrimp intestines.
Impact of a chronic waterborne exposure to polystyrene nanoplastics on the gilthead seabream (Sparus aurata): Combining traditional and multi-omics approaches
Researchers exposed gilthead seabream to environmentally relevant and elevated polystyrene nanoplastic concentrations for 28 days, finding no visible tissue damage or blood abnormalities but significant shifts in gut microbiome diversity and dose-dependent changes in plasma metabolites linked to energy metabolism, suggesting subtle long-term risks for aquaculture production.
Acute and chronic effects of polystyrene microplastics on brine shrimp: First evidence highlighting the molecular mechanism through transcriptome analysis
Researchers investigated both acute and chronic toxicity of polystyrene microplastics on brine shrimp, using transcriptome analysis to uncover molecular mechanisms. While acute exposure did not significantly affect survival, chronic exposure led to concentration-dependent bioaccumulation and increased reactive oxygen species generation, with gene expression analysis revealing disrupted metabolic and stress response pathways.
The uptake and elimination of polystyrene microplastics by the brine shrimp, Artemia parthenogenetica, and its impact on its feeding behavior and intestinal histology
Researchers studied the uptake, elimination, and intestinal effects of polystyrene microplastics on brine shrimp larvae. They found that the larvae ingested microplastics at rates dependent on concentration, exposure time, and food availability, and that the particles caused intestinal damage. The study demonstrates that microplastic contamination can harm the health and feeding behavior of zooplankton larvae, which are critical components of marine food webs.
Size-dependent toxicological effects of polystyrene microplastics in the shrimp Litopenaeus vannamei using a histomorphology, microbiome, and metabolic approach
Researchers exposed white leg shrimp to polystyrene microplastics of four different sizes and found that toxicity was strongly size-dependent, with smaller particles causing greater tissue damage to guts and gills. Smaller microplastics were also more readily ingested and bioavailable to the shrimp. However, larger particles triggered different responses in gut microbiome diversity and metabolic pathways, indicating that microplastic size influences the type and severity of biological effects.
Polystyrene microplastics induce molecular toxicity in Simocephalus vetulus: A transcriptome and intestinal microorganism analysis
Researchers exposed a freshwater crustacean to polystyrene nanoplastics and found widespread molecular-level damage, including oxidative stress, disrupted energy metabolism, and signs of neurotoxicity. The nanoplastics also significantly altered the animals' gut microbiome, increasing harmful bacteria and weakening intestinal barrier function. The study provides a detailed picture of how plastic pollution can affect freshwater organisms at the cellular and genetic level.
Gradual effects of gradient concentrations of polystyrene nanoplastics on metabolic processes of the razor clams
Researchers exposed razor clams to a gradient of polystyrene nanoplastic concentrations and used metabolomics to track effects, finding that even low concentrations disrupted energy metabolism and amino acid pathways, with effects becoming more severe as concentration increased.
Microbiome: A forgotten target of environmental micro(nano)plastics?
This review examines how micro- and nanoplastics affect the microbiome of various organisms, an area that has received less attention than other toxicological endpoints. Researchers found that most studies focused on polystyrene particles and that exposure consistently disrupted microbiome composition, triggered immune responses, and altered enzyme activity across organisms including crustaceans, fish, and mammals. The study highlights the microbiome as an important but often overlooked target of microplastic pollution.
The Influence of Polystyrene Microspheres Abundance on Development and Feeding Behavior of Artemia salina (Linnaeus, 1758)
Researchers exposed brine shrimp larvae to polystyrene microspheres at various concentrations with and without a food source over seven days. They found that microplastic ingestion was dose-dependent and significantly influenced by food availability, with the highest contamination occurring when no food was present. The study suggests that microplastic pollution can disrupt feeding behavior and delay development in early life stages of marine organisms.
Assessing the Biodistribution and Toxicity of Fluorescently Dyed Nano-Polystyrene in Artemia salina Nauplii
Researchers tracked the distribution and toxic effects of polystyrene nanoplastics in brine shrimp, a key model organism for ecotoxicology. They found that nanoplastics accumulated in the gut and, at higher concentrations, caused gut deformities, with the lethal concentration decreasing by nearly half between 24 and 48 hours of exposure. The findings suggest that nanoplastics may also impair the salt gland, affecting osmoregulation and energy allocation in marine organisms.
Effects of ingested polystyrene microplastics on brine shrimp, Artemia parthenogenetica
Brine shrimp larvae (Artemia parthenogenetica) were exposed to 10 μm polystyrene microspheres at concentrations close to environmentally extrapolated levels, with microspheres clearly ingested and accumulated in the gut, resulting in reduced feeding rates and growth at higher concentrations. The study demonstrates that microplastic ingestion by brine shrimp, a widely used aquaculture feed organism, occurs at ecologically relevant concentrations and causes sublethal harm.
Polystyrene microplastics induce gut microbiome and metabolome changes in Javanese medaka fish (Oryzias javanicus Bleeker, 1854)
Researchers found that polystyrene microplastic exposure altered gut microbiome composition and metabolic profiles in Javanese medaka fish, with effects on amino acid and lipid metabolism pathways suggesting microplastics can disrupt gut health in aquatic organisms.
Microplastic toxicity in shrimp: From mechanistic pathways to ecological implications.
Researchers systematically reviewed 94 studies on microplastic toxicity in shrimp, mapping mechanistic pathways from particle characteristics to oxidative stress, immune dysfunction, neurotoxicity, and reproductive impairment across hepatopancreas, gills, gut, and gonad tissues, and identifying shrimp as effective bioindicators for aquatic microplastic risk assessment.
Toxicological effects of microplastics in Litopenaeus vannamei as indicated by an integrated microbiome, proteomic and metabolomic approach
Shrimp (Litopenaeus vannamei) exposed to five microplastic types for 14 days showed gut microbiota shifts (increased Bacteroidetes and Proteobacteria, decreased Firmicutes) and altered haemolymph proteomes, with each MP type producing distinct immune pathway effects.
Gut Check: Microbiota and Obesity in Mice Exposed to Polystyrene Microspheres
Researchers found that gut microbiota appeared to play a mediating role in the obesity outcomes observed in mice fed manufactured polystyrene microspheres, suggesting that microplastic-induced alterations to the gut microbiome may be a mechanism linking microplastic exposure to metabolic dysfunction and weight gain.
Comprehensive analysis of proteomic and biochemical responses of Daphnia magna to short-term exposure to polystyrene microplastic particles
Scientists exposed tiny freshwater crustaceans (Daphnia magna) to polystyrene microplastic particles for just 48 hours and found widespread disruptions at the molecular level. The organisms showed reduced energy metabolism, elevated signs of oxidative stress, and activated cellular uptake pathways, possibly as a defense mechanism. These findings indicate that even short-term microplastic exposure can trigger a complex stress response in a species that plays a key role in freshwater food webs.
[Effects of Microplastic Exposure on Crucian Growth, Liver Damage, and Gut Microbiome Composition].
Researchers exposed crucian carp to varying concentrations of polyethylene microplastics in feed for 30 days and found that low-concentration exposure increased body weight while higher concentrations caused liver damage and altered gut microbiome composition, suggesting dose-dependent effects.
A preliminary study of the association between colonization of microorganism on microplastics and intestinal microbiota in shrimp under natural conditions
Microplastics were detected in shrimp pond sediment (5,129 ± 1,176 items/kg) and in Litopenaeus vannamei shrimp tissue (14.08 ± 5.70 items/g), with MP abundance positively correlated between sediments and shrimp, and the microbiome on plastic surfaces differing from the shrimps' intestinal microbiota.
Effects of polystyrene microplastics on the composition of the microbiome and metabolism in larval zebrafish
Researchers exposed larval zebrafish to two sizes of polystyrene microplastics and found significant changes in gut microbiome composition and metabolic activity. The microplastics altered the abundance and diversity of gut bacteria and disrupted metabolic pathways important for development. The study suggests that early-life exposure to microplastics could have meaningful biological consequences by reshaping the gut environment of developing organisms.