Aquatic Toxicology2021
11 citations
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Score: 35
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Willie J.G.M. Peijnenburg,
Bregje W. Brinkmann,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Bregje W. Brinkmann,
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Wouter F. Beijk,
Willie J.G.M. Peijnenburg,
Wouter F. Beijk,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Redmar C. Vlieg,
Redmar C. Vlieg,
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
S.J.T. van Noort,
S.J.T. van Noort,
Martina G. Vijver
Martina G. Vijver
Jorge Mejia,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Gerda E. M. Lamers,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Julien L. Colaux,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Gerda E. M. Lamers,
Martina G. Vijver
Martina G. Vijver
Stéphane Lucas,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Gerda E. M. Lamers,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Gerda E. M. Lamers,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Willie J.G.M. Peijnenburg,
Martina G. Vijver
Martina G. Vijver
Summary
Researchers found that titanium dioxide nanoparticles (a common material in sunscreens and coatings) stick to the outside of zebrafish eggs without crossing into the embryo, but still disrupt the early microbial community that colonizes the egg surface. This disruption allowed pathogenic bacteria to thrive and persisted into hatched larvae, suggesting that nanoparticles in water can indirectly harm aquatic life by altering their microbiome.
Teleost fish embryos are protected by two acellular membranes against particulate pollutants that are present in the water column. These membranes provide an effective barrier preventing particle uptake. In this study, we tested the hypothesis that the adsorption of antimicrobial titanium dioxide nanoparticles onto zebrafish eggs nevertheless harms the developing embryo by disturbing early microbial colonization. Zebrafish eggs were exposed during their first day of development to 2, 5 and 10 mg TiO<sub>2</sub> L<sup>-1</sup> (NM-105). Additionally, eggs were exposed to gold nanorods to assess the effectiveness of the eggs' membranes in preventing particle uptake, localizing these particles by way of two-photon microscopy. This confirmed that particles accumulate onto zebrafish eggs, without any detectable amounts of particles crossing the protective membranes. By way of particle-induced X-ray emission analysis, we inferred that the titanium dioxide particles could cover 25-45 % of the zebrafish egg surface, where the concentrations of sorbed titanium correlated positively with concentrations of potassium and correlated negatively with concentrations of silicon. A combination of imaging and culture-based microbial identification techniques revealed that the adsorbed particles exerted antimicrobial effects, but resulted in an overall increase of microbial abundance, without any change in heterotrophic microbial activity, as inferred based on carbon substrate utilization. This effect persisted upon hatching, since larvae from particle-exposed eggs still comprised higher microbial abundance than larvae that hatched from control eggs. Notably, pathogenic aeromonads tolerated the antimicrobial properties of the nanoparticles. Overall, our results show that the adsorption of suspended antimicrobial nanoparticles on aquatic eggs can have cascading effects across different life stages of oviparous animals. Our study furthermore suggests that aggregation dynamics may occur that could facilitate the dispersal of pathogenic bacteria through aquatic ecosystems.