We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Virgin Polystyrene Microparticles Exposure Leads to Changes in Gills DNA and Physical Condition in the Mediterranean Mussel Mytilus Galloprovincialis
AI summary Read the abstract
Researchers exposed Mediterranean mussels (Mytilus galloprovincialis) to virgin polystyrene microparticles and found significant DNA damage in gill tissue and reduced physical condition, suggesting that even virgin microplastics pose a genotoxic risk to marine filter feeders.
The ever-growing concentration of microplastics in the marine environment is leading to a plethora of questions regarding marine organisms' present and future health status. In this article, the Mediterranean mussel (Mytilus galloprovincialis), a commercial species distributed worldwide, has been exposed to 21 daily doses of polystyrene microparticles (10 µm) at four different concentrations that are environmentally realistic (control: no microplastics, C1: 0.02 mg/L, C2: 0.2 mg/L, and C3: 2 mg/L). The physical status through the condition index, and damages in DNA integrity in gills, through DNA fragmentation, were determined. Results showed a minor effect on DNA integrity but a worse physical status at higher doses. Results could be interpreted as a decrease in mussel feeding activity/filtration rates when exposed to high microplastic concentrations, thus reducing the direct exposure to microplastics in gills. These effects could be happening currently and/or may happen in the near future, threatening populations inhabiting microplastics-polluted environments.
More Papers Like This
Genotoxic Properties of Polystyrene (PS) Microspheres in the Filter-Feeder Mollusk Mytilus trossulus (Gould, 1850)
AI summary Read the abstract
Polystyrene microspheres were tested for genotoxic effects in the filter-feeding mussel Mytilus trossulus, finding that exposure caused DNA strand breaks and other genetic damage in gill and hemocyte cells. The study contributes evidence that microplastic particles can induce genotoxicity in marine bivalves used as pollution bioindicators.
Chronic toxicity of polystyrene nanoparticles in the marine mussel Mytilus galloprovincialis
AI summary Read the abstract
Researchers exposed Mediterranean mussels to polystyrene nanoplastics (50 nm, 10 µg/L) for 21 days and found genotoxicity in blood cells and overwhelmed antioxidant defenses in gills and digestive glands, with gills showing the most severe tissue-level oxidative damage over time.
Short-term exposure to polystyrene microplastics hampers the cellular function of gills in the Mediterranean mussel Mytilus galloprovincialis
AI summary Read the abstract
Even short-term exposure (72 hours) to polystyrene microplastics disrupted gill function in Mediterranean mussels, a species commonly eaten by humans. The microplastics accumulated in gill tissue and caused metabolic disorders including changes in energy production, nerve signaling, and salt balance, along with oxidative stress. Since mussels are filter feeders that concentrate microplastics from seawater, these findings raise questions about the quality of shellfish as human food.
Polystyrene nanoplastics in the marine mussel Mytilus galloprovincialis.
AI summary Read the abstract
This study investigated how polystyrene nanoplastics affect Mediterranean mussels, an important marine species and human food source. Researchers found that these tiny plastic particles can cross cell membranes, accumulate in tissues, and trigger oxidative stress and immune responses. The findings suggest that nanoplastic pollution in the ocean could affect both marine ecosystem health and the safety of seafood consumed by people.
Environmental contamination with polystyrene micro and nano plastic affects Mytilus galloprovincialis ovaries
AI summary Read the abstract
Researchers exposed Mediterranean mussels (Mytilus galloprovincialis) to 5 µm microplastics and 0.1 µm nanoplastics and found that both triggered oxidative stress, disrupted cytoskeletal proteins, and impaired oocyte maturation, with nanoplastics causing more severe suppression of egg cell proliferation and higher rates of cell death — raising concerns for coastal mollusk reproductive health.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.