FN Archimer Export Format PT J TI Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis BT AF Genevière, Anne-Marie Derelle, Evelyne Escande, Marie-Line Grimsley, Nigel Klopp, Christophe Ménager, Christine Michel, Aude Moreau, Hervé AS 1:1;2:1,2;3:1;4:1;5:3;6:4;7:4;8:1; FF 1:;2:;3:;4:;5:;6:;7:;8:; C1 Sorbonne Université, CNRS, Biologie Intégrative des Organismes Marins, BIOM, Banyuls-sur-Mer, France Univ Brest, CNRS, IRD, Ifremer, LEMAR, Plouzane, France INRA, Plateforme Bioinformatique Toulouse, Midi Pyrenees UBIA, Castanet Tolosan, France Sorbonne Université, CNRS, PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX, Paris, France C2 UNIV SORBONNE, FRANCE CNRS, FRANCE INRA, FRANCE UNIV SORBONNE, FRANCE UM LEMAR IN WOS Cotutelle UMR copubli-france copubli-univ-france IF 5.913 TC 12 UR https://archimer.ifremer.fr/doc/00654/76607/83368.pdf LA English DT Article DE ;Nanoparticles;toxicity;marine organisms;metal oxide;transcriptomics AB We investigated the toxicity of Iron oxide and Zinc oxide engineered nanoparticles (ENPs) on Paracentrotus lividus sea urchin embryos and three species of microalgae. Morphological responses, internalization, and potential impacts of Fe2O3 and ZnO ENPs on physiology and metabolism were assessed. Both types of ENPs affected P. lividus larval development, but ZnO ENPs had a much stronger effect. While growth of the alga Micromonas commoda was severely impaired by both ENPs, Ostreococcus tauri or Nannochloris sp. were unaffected. Transmission electron microscopy showed the internalization of ENPs in sea urchin embryonic cells while only nanoparticle interaction with external membranes was evidenced in microalgae, suggesting that marine organisms react in diverse ways to ENPs. Transcriptome-wide analysis in P. lividus and M. commoda showed that many different physiological pathways were affected, some of which were common to both species, giving insights about the mechanisms underpinning toxic responses PY 2020 PD NOV SO Nanotoxicology SN 1743-5390 PU Informa UK Limited VL 14 IS 10 UT 000577361100001 BP 1342 EP 1361 DI 10.1080/17435390.2020.1827074 ID 76607 ER EF