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Article Dans Une Revue Scientific Reports Année : 2019

Nanoparticle-Biological Interactions in a Marine Benthic Foraminifer

Caterina Ciacci
  • Fonction : Auteur
Margot Grimmelpont
  • Fonction : Auteur
Ilaria Corsi
Elisa Bergami
  • Fonction : Auteur
Davide Curzi
  • Fonction : Auteur
Debora Burini
  • Fonction : Auteur
Patrizia Ambrogini
  • Fonction : Auteur
Pietro Gobbi
Yurika Ujiié
Yoshiyuki Ishitani
Rodolfo Coccioni
  • Fonction : Auteur
Joan Bernhard
Fabrizio Frontalini

Résumé

Abstract The adverse effects of engineered nanomaterials (ENM) in marine environments have recently attracted great attention although their effects on marine benthic organisms such as foraminifera are still largely overlooked. Here we document the effects of three negatively charged ENM, different in size and composition, titanium dioxide (TiO 2 ), polystyrene (PS) and silicon dioxide (SiO 2 ), on a microbial eukaryote (the benthic foraminifera Ammonia parkinsoniana ) using multiple approaches. This research clearly shows the presence, within the foraminiferal cytoplasm, of metallic (Ti) and organic (PS) ENM that promote physiological stress. Specifically, marked increases in the accumulation of neutral lipids and enhanced reactive oxygen species production occurred in ENM-treated specimens regardless of ENM type. This study indicates that ENM represent ecotoxicological risks for this microbial eukaryote and presents a new model for the neglected marine benthos by which to assess natural exposure scenarios.
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hal-04364707 , version 1 (28-12-2023)

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Caterina Ciacci, Margot Grimmelpont, Ilaria Corsi, Elisa Bergami, Davide Curzi, et al.. Nanoparticle-Biological Interactions in a Marine Benthic Foraminifer. Scientific Reports, 2019, 9 (1), pp.19441. ⟨10.1038/s41598-019-56037-2⟩. ⟨hal-04364707⟩
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