Nanoplastic contamination has become an issue of environmental concern but the information on the potential adverse effects of nanoplastics on marine ecosystems is still limited. Therefore, the aim of this work was to investigate the effects of the exposure to polystyrene nanoplastics (PS-NPs; 0.05, 0.5 and 5 μg/mL) on the brittles star Ophiactis virens. Diverse endpoints at different levels of biological organization were considered, including behavior, arm regeneration capacity and oxidative stress. PS-NPs were observed on the brittle star body surface but not in inner tissues. Accumulation of PS-NPs was observed in the pre-buccal cavity of animals exposed to 5 μg/mL PS-NPs which also displayed delayed righting activity and an oxidative stress condition. Nevertheless, no effect was observed on arm regeneration efficiency at any tested PS-NPs concentration. Overall, our results highlighted that prolonged exposure to high amounts of PS-NPs could interfere at least partially with the physiology of O. virens.

Exposure to polystyrene nanoplastics induced physiological and behavioral effects on the brittle star Ophiactis virens / M. Sugni, A. Balzano, B. De Felice, F. Bonasoro, L. Casati, L. Madaschi, M. Ascagni, M. Parolini. - In: MARINE POLLUTION BULLETIN. - ISSN 0025-326X. - 200:(2024 Mar), pp. 116061.1-116061.12. [10.1016/j.marpolbul.2024.116061]

Exposure to polystyrene nanoplastics induced physiological and behavioral effects on the brittle star Ophiactis virens

M. Sugni
Primo
;
B. De Felice;F. Bonasoro;L. Casati;L. Madaschi;M. Ascagni
Penultimo
;
M. Parolini
Ultimo
2024

Abstract

Nanoplastic contamination has become an issue of environmental concern but the information on the potential adverse effects of nanoplastics on marine ecosystems is still limited. Therefore, the aim of this work was to investigate the effects of the exposure to polystyrene nanoplastics (PS-NPs; 0.05, 0.5 and 5 μg/mL) on the brittles star Ophiactis virens. Diverse endpoints at different levels of biological organization were considered, including behavior, arm regeneration capacity and oxidative stress. PS-NPs were observed on the brittle star body surface but not in inner tissues. Accumulation of PS-NPs was observed in the pre-buccal cavity of animals exposed to 5 μg/mL PS-NPs which also displayed delayed righting activity and an oxidative stress condition. Nevertheless, no effect was observed on arm regeneration efficiency at any tested PS-NPs concentration. Overall, our results highlighted that prolonged exposure to high amounts of PS-NPs could interfere at least partially with the physiology of O. virens.
Echinoderms; Marine environment; Oxidative stress; Plastic nanoparticles; Regeneration
Settore BIO/05 - Zoologia
Settore BIO/07 - Ecologia
mar-2024
Article (author)
File in questo prodotto:
File Dimensione Formato  
Sugni et al 2024_MAR POLL BULL.pdf

accesso riservato

Tipologia: Publisher's version/PDF
Dimensione 8.29 MB
Formato Adobe PDF
8.29 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1039568
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact