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https://www.readbyqxmd.com/read/29793106/microplastics-in-mussels-sampled-from-coastal-waters-and-supermarkets-in-the-united-kingdom
#1
Jiana Li, Christopher Green, Alan Reynolds, Huahong Shi, Jeanette M Rotchell
Global contamination of the marine environment by plastic has led to the discovery of microplastics in a range of marine species, including those for human consumption. In this study, the presence of microplastics and other anthropogenic debris in seawater and mussels (Mytilus edulis) from coastal waters of the U.K., as well as supermarket sources, was investigated. These were detected in all samples from all sites with spatial differences observed. Seawater samples taken from 6 locations (in triplicates) displayed 3...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29789708/combined-genotyping-microbial-diversity-and-metabolite-profiling-studies-on-farmed-mytilus-spp-from-kiel-fjord
#2
Caroline Utermann, Delphine Parrot, Corinna Breusing, Heiko Stuckas, Tim Staufenberger, Martina Blümel, Antje Labes, Deniz Tasdemir
The blue mussel Mytilus is a popular food source with high economical value. Species of the M. edulis complex (M. edulis, M. galloprovincialis and M. trossulus) hybridise whenever their geographic ranges overlap posing difficulties to species discrimination, which is important for blue mussel aquaculture. The aim of this study was to determine the genetic structure of farmed blue mussels in Kiel Fjord. Microbial and metabolic profile patterns were studied to investigate a possible dependency on the genotype of the bivalves...
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29787848/effects-of-steaming-on-contaminants-of-emerging-concern-levels-in-seafood
#3
Vera Barbosa, Ana Luísa Maulvault, Ricardo N Alves, Christian Kwadijk, Michiel Kotterman, Alice Tediosi, Margarita Fernández Tejedor, Jens J Sloth, Kit Granby, Rie R Rasmussen, Johan Robbens, Bavo De Witte, Laura Trabalón, José O Fernandes, Sara Cunha, António Marques
Seafood consumption is a major route for human exposure to environmental contaminants of emerging concern (CeCs). However, toxicological information about the presence of CeCs in seafood is still insufficient, especially considering the effect of cooking procedures on contaminant levels. This study is one among a few who evaluated the effect of steaming on the levels of different CeCs (toxic elements, PFCs, PAHs, musk fragrances and UV-filters) in commercially relevant seafood in Europe, and estimate the potential risks associated with its consumption for consumers...
May 19, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29785034/trophic-overlap-between-expanding-and-contracting-fish-predators-in-a-range-margin-undergoing-change
#4
Mats Westerbom, Antti Lappalainen, Olli Mustonen, Alf Norkko
Climate change is predicted to cause a freshening of the Baltic Sea, facilitating range expansions of freshwater species and contractions of marine. Resident marine flounders (Platichthys flesus) and expansive freshwater roach (Rutilus rutilus) are dominant consumers in the Baltic Sea sublittoral where they occur in partial sympatry. By comparing patterns of resource use by flounders and roach along a declining resource gradient of blue mussels (Mytilus trossulus) our aim was to explore predator functional responses and the degree of trophic overlap...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29778932/dynamics-of-paralytic-shellfish-toxins-and-their-metabolites-during-timecourse-exposure-of-scallops-chlamys-farreri-and-mussels-mytilus-galloprovincialis-to-alexandrium-pacificum
#5
Jiangbing Qiu, Fanping Meng, Ling Ding, Yijia Che, Pearse McCarron, Daniel G Beach, Aifeng Li
New C-11 hydroxyl metabolites of paralytic shellfish toxins (PSTs) have been reported in shellfish. To gain further information on these metabolites, as well as the potential for formation of phase-II metabolites and acyl esters of PSTs, bivalves were fed with the PSTs-producing dinoflagellate Alexandrium pacificum (strain ATHK). Through independent experiments, scallops (Chlamys farreri) were fed for 9 days and mussels (Mytilus galloprovincialis) for 5 days plus an additional 5 days of depuration, with representative samples taken throughout...
May 16, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29773190/assessment-of-metals-bioaccumulation-and-bioavailability-in-mussels-mytilus-galloprovincialis-exposed-to-outfalls-pollution-in-coastal-areas-of-casablanca
#6
Zineb Mejdoub, Younes Zaid, Fouzia Hmimid, Mostafa Kabine
The present work aims to study the metallic contamination of four sampling sites located nearby major sewage outfalls of the Casablanca coast (Morocco), using indigenous mussels Mytilus galloprovincialis as bioindicators of pollution. This research offered the opportunity to study trace metals bioaccumulation mechanisms, which represent a major factor in assessment processes of the pollution effects in coastal ecosystem health. The bioavailability and the bioaccumulation of trace metals (Cu, Zn, Ni, Pb) were evaluated in order to compare the metallic contamination in mussels' tissues and find a possible correlation with physiological parameters of this filter feeding species...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29756679/effect-of-heat-processing-on-ige-reactivity-and-cross-reactivity-of-tropomyosin-and-other-allergens-of-asia-pacific-mollusc-species-identification-of-novel-sydney-rock-oyster-tropomyosin-sac-g-1
#7
Jennifer M Rolland, Nirupama P Varese, Jodie B Abramovitch, Jessica Anania, Roni Nugraha, Sandip Kamath, Anita Hazard, Andreas L Lopata, Robyn E O'Hehir
SCOPE: Shellfish allergy is an increasing global health priority, frequently affecting adults. Molluscs are an important shellfish group causing food allergy but knowledge of their allergens and cross-reactivity is limited. Optimal diagnosis of mollusc allergy enabling accurate advice on food avoidance is difficult. We characterized allergens of four frequently ingested Asia-Pacific molluscs: Sydney Rock Oyster (Saccostrea glomerata), Blue Mussel (Mytilus edulis), Saucer Scallop (Amusium balloti) and Southern Calamari (Sepioteuthis australis), examining cross-reactivity between species and with Blue Swimmer Crab tropomyosin, Por p 1...
May 14, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29721271/reduction-and-recovery-of-keystone-predation-pressure-after-disease-related-mass-mortality
#8
Monica M Moritsch, Peter T Raimondi
Disturbances such as disease can reshape communities through interruption of ecological interactions. Changes to population demographics alter how effectively a species performs its ecological role. While a population may recover in density, this may not translate to recovery of ecological function. In 2013, a sea star wasting syndrome outbreak caused mass mortality of the keystone predator Pisaster ochraceus on the North American Pacific coast. We analyzed sea star counts, biomass, size distributions, and recruitment from long-term intertidal monitoring sites from San Diego to Alaska to assess regional trends in sea star recovery following the outbreak...
April 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29709593/a-novel-toll-like-receptor-from-mytilus-coruscus-is-induced-in-response-to-stress
#9
Mengshan Xu, Jiong Wu, Delong Ge, Changwen Wu, Changfeng Chi, Zhenming Lv, Zhi Liao, Huihui Liu
Toll-like receptor (TLR) is considered to be an evolutionarily conserved transmembrane protein which promotes the Toll signal pathway to active the expression of transcription factors in the innate immunity of the organism. In this study, a full length of TLR homologue of 2525bp in Mytilus coruscus (named as McTLR-a, GenBank accession no: KY940571) was characterized. Its ORF was 1815 bp with a 5'untranslated region (UTR) of 128 bp and a 3'UTR of 582 bp, encoding 602 amino acid residues with a calculated molecular weight of 70...
April 27, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29706366/retention-and-distribution-of-methylmercury-administered-in-the-food-in-marine-invertebrates-effect-of-dietary-selenium
#10
Poul Bjerregaard, Tanja St John, Narges Amrollahi Biuki, Maya Petrova Biserova, Alan Christensen, Knud Ladegaard Pedersen
Methylmercury is transported along aquatic food chains from the lower trophic levels and selenium modulates the biokinetics of mercury in organisms in complex ways. We investigated the retention of orally administered methylmercury in various marine invertebrates and the effect of selenium hereon. Shrimps (Palaemon adpersus and P. elegans), blue mussels (Mytilus edulis), shore crabs (Carcinus maenas) and sea stars (Asterias rubens) eliminated methylmercury slowly (t½  = ½ to >1 year) and the copepod (Acartia tonsa) faster (t½  ∼ 12-24 h)...
April 20, 2018: Marine Environmental Research
https://www.readbyqxmd.com/read/29706341/evaluation-of-short-purification-cycles-in-naturally-contaminated-mediterranean-mussels-mytilus-galloprovincialis-harvested-in-sardinia-italy
#11
Giovanni Sferlazzo, Domenico Meloni, Sonia Lamon, Marta Marceddu, Anna Mureddu, Simonetta Gianna Consolati, Margherita Pisanu, Sebastiano Virgilio
The aim of the present study was to investigate the effect of short purification cycles on the safety of naturally contaminated Mytilus galloprovincialis from harvesting areas of the Gulf of Olbia (Sardinia, Italy). Samples from ten batches of mussels were collected before, during and after purification treatment at two purification centres (A-B). All the samples were analysed for Escherichia coli and Salmonella spp according to Council Regulation (EC) 2285/2015. Detection and enumeration of Vibrio spp were performed according to previously published methods...
September 2018: Food Microbiology
https://www.readbyqxmd.com/read/29705565/role-of-endocytotic-uptake-routes-in-impacting-the-ros-related-toxicity-of-silver-nanoparticles-to-mytilus-galloprovincialis-a-redox-proteomic-investigation
#12
Younes Bouallegui, Ridha Ben Younes, Ridha Oueslati, David Sheehan
Oxidative stress is often implicated in nanoparticle toxicity. Several studies have highlighted the role of internalization routes in determining nanotoxicity. Here, we investigate how two endocytotic mechanisms (clathrin- and caveolae-mediated) impact on redox balance in gill and digestive gland of the mussel, Mytilus galloprovincialis. Animals were exposed (for 3, 6 and 12 h) to two sizes of silver nanoparticles (AgNP: <50 nm and <100 nm) prior to and after blockade of two endocytic pathways (amantadine blocks clathrin-mediated endocytosis while nystatin blocks caveolae-mediated endocytosis)...
April 23, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29704836/bap-metals-co-exposure-induced-tissue-specific-antioxidant-defense-in-marine-mussels-mytilus-coruscus
#13
Siyu Chen, Mengjie Qu, Jiawei Ding, Yifei Zhang, Yi Wang, Yanan Di
Both benzo(α)pyrene (BaP) and metals are frequently found in marine ecosystem and can cause detrimental effects in marine organism, especially the filter feeder-marine mussels. Although the biological responses in mussels have been well-studied upon the single metal or BaP exposure, the information about antioxidant defense, especially in different tissues of mussels, are still limited. Considering the variety of contaminants existing in the actual marine environment, single BaP (56 μg/L) and the co-exposure with Cu, Cd and Pb (50 μg/L, 50 μg/L and 3 mg/L respectively) were applied in a 6 days exposure followed by 6 days depuration experiment...
April 18, 2018: Chemosphere
https://www.readbyqxmd.com/read/29704717/mussel-digestive-gland-as-a-model-tissue-for-assessing-xenobiotics-an-overview
#14
REVIEW
Caterina Faggio, Vasiliki Tsarpali, Stefanos Dailianis
Control strategies and routine biomonitoring programs are commonly performed worldwide using sentinel marine invertebrates, such as mussels of the genus Mytilus, for assessing the "health status" of the aquatic environment. Those species can accumulate and tolerate xenobiotics at levels higher than those being present into the aquatic environment, thus providing accurate and reliable biological endpoints (e.g. physiological, behavioral, cellular, biochemical and molecular indices) that can be measured in their tissues...
April 25, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29704629/cytotoxicity-of-ceo-2-nanoparticles-using-in-vitro-assay-with-mytilus-galloprovincialis-hemocytes-relevance-of-zeta-potential-shape-and-biocorona-formation
#15
M Sendra, M Volland, T Balbi, R Fabbri, M P Yeste, J M Gatica, L Canesi, J Blasco
Over the last decades, the growth in nanotechnology has provoked an increase in the number of its applications and consumer products that incorporate nanomaterials in their formulation. Metal nanoparticles are released to the marine environment and they can interact with cells by colloids forces establish a nano-bio interface. This interface can be compatible or generate bioadverse effects to cells. The daily use of CeO2 nanoparticles (CeO2 NPs) in industrial catalysis, sunscreen, fuel cells, fuel additives and biomedicine and their potential release into aquatic environments has turned them into a new emerging pollutant of concern...
April 22, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29694919/new-potential-biomarkers-of-oxidative-stress-in-mytilus-galloprovincialis-analytical-validation-and-overlap-performance
#16
Lorena Franco-Martínez, Diego Romero, Camila Peres Rubio, Fernando Tecles, Silvia Martínez-Subiela, Mariana Teles, Asta Tvarijonaviciute
The aim of the present report was to develop and validate new automated spectrophotometric assays for measurement of total antioxidant capacity (TAC), thiols, and advanced oxidation protein products (AOPP) in mussel gills, digestive gland and hemolymph samples, and to evaluate their possible utility in biomonitoring programs. Total antioxidant capacity (TAC) was measured by different methods: trolox equivalent antioxidant capacity (TEAC1 and TEAC2), cupric reducing antioxidant capacity (CUPRAC), and ferric reducing ability of plasma (FRAP)...
April 22, 2018: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29691118/determination-of-trace-metals-in-mytilus-galloprovincialis-along-the-boka-kotorska-bay-montenegrin-coast
#17
Danijela Joksimović, Ana Castelli, Ana Perošević, Dijana Djurović, Slavka Stanković
The concentrations of six trace metals, cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb), zinc (Zn) and mercury (Hg) were determined in the soft tissues of the mussel Mytilus galloprovincialis and bottom sediments collected from the coastal area of Boka Kotorska Bay (Montenegrin coast). The mussels and sediment samples were collected at three sites along the Boka Kotorska Bay from the autumn of 2014 to the winter of 2016. The concentrations (mg/kg dw) of these metals in the mussel samples ranged from 1.01 to 2...
April 17, 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29670538/functional-involvement-of-carbonic-anhydrase-in-the-lysosomal-response-to-cadmium-exposure-in-mytilus-galloprovincialis-digestive-gland
#18
Roberto Caricato, M Elena Giordano, Trifone Schettino, M Giulia Lionetto
Carbonic anhydrase (CA) is a ubiquitous metalloenzyme, whose functions in animals span from respiration to pH homeostasis, electrolyte transport, calcification, and biosynthetic reactions. CA is sensitive to trace metals in a number of species. In mussels, a previous study demonstrated CA activity and protein expression to be enhanced in digestive gland by cadmium exposure. The aim of the present work was to investigate the functional meaning, if any, of this response. To this end the study addressed the possible involvement of CA in the lysosomal system response of digestive gland cells to metal exposure...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29669896/plasticity-of-thermal-tolerance-and-its-relationship-with-growth-rate-in-juvenile-mussels-mytilus-californianus
#19
Lani U Gleason, Emma L Strand, Brian J Hizon, W Wesley Dowd
Complex life cycles characterized by uncertainty at transitions between larval/juvenile and adult environments could favour irreversible physiological plasticity at such transitions. To assess whether thermal tolerance of intertidal mussels ( Mytilus californianus ) adjusts to post-settlement environmental conditions, we collected juveniles from their thermally buffered microhabitat from high- and low-shore locations at cool (wave-exposed) and warm (wave-protected) sites. Juveniles were transplanted to unsheltered cages at the two low sites or placed in a common garden...
April 25, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29666913/comprehensive-lipid-profiling-in-the-mediterranean-mussel-mytilus-galloprovincialis-using-hyphenated-and-multidimensional-chromatography-techniques-coupled-to-mass-spectrometry-detection
#20
Paola Donato, Giuseppe Micalizzi, Marianna Oteri, Francesca Rigano, Danilo Sciarrone, Paola Dugo, Luigi Mondello
The task of lipid analysis and profiling is taking centre stage in many research fields and as a consequence, there has been an intense effort to develop suitable methodologies to discover, identify, and quantify lipids in the systems investigated. Given the high complexity and diversity of the lipidome, researchers have been challenged to afford thorough knowledge of all the lipid species in a given sample, by gathering the data obtained by complementary analytical techniques. In this research, an "omic" approach was developed to quickly fingerprint lipids in the Mediterranean mussel (Mytilus galloprovincialis), by exploiting multidimensional and hyphenated techniques...
April 17, 2018: Analytical and Bioanalytical Chemistry
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