Titre :

Nanoparticle-Biological Interactions in a Marine Benthic Foraminifer

Auteur(s) :

Ciacci, Caterina [Auteur]
Grimmelpont, Margot [Auteur]
Corsi, Ilaria [Auteur]
Bergami, Elisa [Auteur]
Curzi, Davide [Auteur]
Burini, Debora [Auteur]
Bouchet, Vincent [Auteur]
Université de Lille
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Ambrogini, Patrizia [Auteur]
Gobbi, Pietro [Auteur]
Ujiié, Yurika [Auteur]
Ishitani, Yoshiyuki [Auteur]
Coccioni, Rodolfo [Auteur]
Bernhard, Joan [Auteur]
Frontalini, Fabrizio [Auteur]

Titre de la revue :

Scientific Reports

Pagination :

19441

Éditeur :

Nature Publishing Group

Date de publication :

2019-12-19

ISSN :

2045-2322

Résumé en anglais : [en]

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 ...
Lire la suite >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.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Collections :

• Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL