Time-course distribution of fluorescent microplastics in target tissues of mussels and polychaetes

Calmão, Mariana; Blasco, Nagore; Benito, Alba; Thoppil, Rhea; Fernández, Imanol Torre; Castro, Kepa; Izagirre, Urtzi; Garcia-Velasco, Nerea; Soto, Manu

doi:10.1016/j.chemosphere.2022.137087

Cited by 10 publications

(6 citation statements)

References 45 publications

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“…This finding suggests that the organisms in the spent stage have a slower filtering activity, implying that acute exposure to microplastics in the environment could be more deleterious during the spent stage rather than in the reproductive stage, although in the latter case this could affect reproductive success. In point of fact, the filtration process in mussels was recently described by Calamāo et al (2022) as the key element in the interaction between microplastics and the different environmental compartments. Our results highlight the correlation between microplastic exposure and the tissuespecific metabolism of the two fundamental antioxidants, OSH and GSH, which could therefore become ecodiagnostic markers to forecast the stress status after exposure to microplastics (in addition to the other traditional indicators like catalase [CAT], superoxide dismutase [SOD], or glutathione-Stransferase).…”

Section: Resultsmentioning

confidence: 99%

Toxicological Impacts of Microplastics: Effects on Levels of Cellular Thiols in Mytilus galloprovincialis

Murano

Palumbo

Leone

2023

Enviro Toxic and Chemistry

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Over the last decade, the biological impact of microplastics in marine environments has become a serious global concern. Beyond their biological complexity, it is believed that many lethal and sublethal effects related to microplastic toxicity are triggered by oxidative stress and subsequently activated pathways. Thus, for marine organisms, having efficient mechanisms to fight the accumulation of oxidizing agents becomes indispensable to counteract the effects of microplastics. To date, our knowledge of the physiological effects of microplastics and the response of the antioxidant system in benthic species remains limited. The purpose of our study was to investigate the effects of short‐term exposure on the levels of two fundamental nonprotein antioxidants, glutathione (GSH) and ovothiol (OSH), in different tissues of Mytilus galloprovincialis. Our results show that the metabolism of OSH and GSH in mussels is clearly affected by acute microplastic exposure, and that the antioxidant response differs based on sex and reproductive stage. Indeed, although in the reproductive season the overall levels of GSH and OSH in different tissues significantly increase with respect to the control condition, the antioxidant response of the organisms, especially males, in the spent stage often exhibits a biphasic U‐shaped dose–response effect. Our study represents a pivotal investigation on the effects of microplastic exposure on the pools of two fundamental cellular antioxidants, with potential ecodiagnostic implications to forecast the stress status after exposure to microplastics, and highlights the possibility that the effects of these contaminants may vary over time based on the physiological condition of the animals. Environ Toxicol Chem 2023;42:1607–1613. © 2023 SETAC

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Section: Resultsmentioning

confidence: 99%

Toxicological Impacts of Microplastics: Effects on Levels of Cellular Thiols in Mytilus galloprovincialis

Murano

Palumbo

Leone

2023

Enviro Toxic and Chemistry

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“…In our study, one fiber was determined as a contaminant present in the mussel digestive gland cryosections, and this shape accounted for the less frequent type of material observed in cryosections. Fibers have been the most often found MPs in many studies until now [36,37,54,60,84], and we suppose this could be because of the cryosections analysis. In Qingdao, China, microfibers were also the most found form among all types of MPs discovered in locally cultured bivalve species (scallop Chlamys farreri, mussel Mytilus galloprovincialis, oyster Crassostrea gigas, and clam Ruditapes philippinarum) [88].…”

Section: Different Shapes Of Microplastics Found In Mussel Digestive ...mentioning

confidence: 89%

“…The second most abundant MP particles were orange and transparent in color and were found in mussel tissues from all investigated locations. Transparent MPs, along with the blue and red, were also recorded in the mussel P. perna from Guanabara Bay (southwestern Atlantic) [54]. Contrary to our findings, in another study the predominant colors of MPs recorded by FT-IR analysis in mussels were blue (54.4%) and pink (29.4%); only some were black (4.4%), yellow (4.4%), or transparent (4%); and a few were green (1.4%) [52].…”

Section: Color Of Microplastics Found In Mussel Digestive Glandsmentioning

confidence: 91%

“…Moreover, it has been demonstrated that mussels are prone to the ingestion of MPs and smaller nanoplastics in their gut. This may lead to the accumulation of plastic items smaller than 10 mm in the digestive gland or in the hemolymph [7,[52][53][54][55]. In a study conducted by Kolandhasamy et al [56], microfibers were identified in the foot and mantle of mussels, with adherence accounting for approximately 50% of the MP uptake in mussels.…”

Section: Introductionmentioning

confidence: 99%

“…The main advantage of using scanning electron microscopy-energy dispersive spectrum (SEM-EDS) analysis for the quick screening of the sample of interest is the possibility to determine plastic vs. non-plastic pellets as well as identify smaller fragments [84,85]. To date, the representative abundance of MP particles associated with mussel digestive gland sections is scarce and has not included additional analysis by SEM [54,57,86]. Therefore, this study aimed to compare the presence of MPs in cultured and native mussels collected from locations in the northern Adriatic.…”

Section: Introductionmentioning

confidence: 99%

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Microplastics in Mediterranean Mussel Mytilus galloprovincialis: Comparison between Cultured and WildType Mussels from the Northern Adriatic

Kovačić,

Štefanko,

Špada

et al. 2024

Applied Sciences

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This study aimed to assess microplastics (MPs) in the digestive glands of Mytilus galloprovincialis mussels. Mussels were collected from pristine, aquaculture, and port areas of the northern Adriatic Sea (Slovenia and Croatia coastline). MPs were detected using scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The characterized MPs were further categorized based on their shape, size, and color. The highest number of 32.85 ± 27.98 MPs per mussel digestive gland was found in the mussels sampled from the ACI marina Rovinj (Croatia). The predominant MPs found in the mussel digestive glands at all investigated locations belonged to the smallest analyzed category (5–10 μm in size) and exhibited spherical and fragment shapes. The most abundant MPs found in mussels by color were white particles. MPs were found in both wild and farmed mussels and, hence, the results point out that the abundance of microplastic pollution is omnipresent along the coastal waters of the northern Adriatic Sea.

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Model Organisms Used in Aquatic Toxicology

Parlak

2024

Springer Water

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Time-course distribution of fluorescent microplastics in target tissues of mussels and polychaetes

Cited by 10 publications

References 45 publications

Toxicological Impacts of Microplastics: Effects on Levels of Cellular Thiols in Mytilus galloprovincialis

Toxicological Impacts of Microplastics: Effects on Levels of Cellular Thiols in Mytilus galloprovincialis

Microplastics in Mediterranean Mussel Mytilus galloprovincialis: Comparison between Cultured and WildType Mussels from the Northern Adriatic

Model Organisms Used in Aquatic Toxicology

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