Silver Nanoparticles Affect Functional Bioenergetic Traits in the Invasive Red Sea Mussel Brachidontes pharaonis

Gianluca Sara', Francesco Dondero, Ilenia Saggese

Risultato della ricerca: Article

6 Citazioni (Scopus)

Abstract

We investigated the functional trait responses to 5 nm metallic silver nanoparticle (AgNPs) exposure in the Lessepsian-entry bivalve B. pharaonis. Respiration rate (oxygen consumption), heartbeat rate, and absorption efficiency were evaluated across an 8-day exposure period in mesocosmal conditions. Basal reference values from not-exposed specimens were statistically compared with those obtained from animals treated with three sublethal nanoparticle concentrations (2 μg L-1, 20 μg L-1, and 40 μg L-1). Our data showed statistically significant effects on the average respiration rate of B. pharaonis. Moreover, complex nonlinear dynamics were observed as a function of the concentration level and time. Heartbeat rates largely increased with no acclimation in animals exposed to the two highest levels with similar temporal dynamics. Eventually, a decreasing trend for absorption efficiency might indicate energetic constraints. In general, these data support the possible impact of engineered nanomaterials in marine environments and support the relevance of functional trait assessment in present and future ecotoxicological studies.
Lingua originaleEnglish
pagine (da-a)1872351-7
Numero di pagine7
RivistaBioMed Research International
Volume2016
Stato di pubblicazionePublished - 2016

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Indian Ocean
Bivalvia
Respiratory Rate
Silver
Nanoparticles
Energy Metabolism
Animals
Functional assessment
Metal Nanoparticles
Nonlinear Dynamics
Nanostructures
Acclimatization
Nanostructured materials
Oxygen Consumption
Reference Values
Oxygen

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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Silver Nanoparticles Affect Functional Bioenergetic Traits in the Invasive Red Sea Mussel Brachidontes pharaonis. / Sara', Gianluca; Dondero, Francesco; Saggese, Ilenia.

In: BioMed Research International, Vol. 2016, 2016, pag. 1872351-7.

Risultato della ricerca: Article

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AU - Dondero, Francesco

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AB - We investigated the functional trait responses to 5 nm metallic silver nanoparticle (AgNPs) exposure in the Lessepsian-entry bivalve B. pharaonis. Respiration rate (oxygen consumption), heartbeat rate, and absorption efficiency were evaluated across an 8-day exposure period in mesocosmal conditions. Basal reference values from not-exposed specimens were statistically compared with those obtained from animals treated with three sublethal nanoparticle concentrations (2 μg L-1, 20 μg L-1, and 40 μg L-1). Our data showed statistically significant effects on the average respiration rate of B. pharaonis. Moreover, complex nonlinear dynamics were observed as a function of the concentration level and time. Heartbeat rates largely increased with no acclimation in animals exposed to the two highest levels with similar temporal dynamics. Eventually, a decreasing trend for absorption efficiency might indicate energetic constraints. In general, these data support the possible impact of engineered nanomaterials in marine environments and support the relevance of functional trait assessment in present and future ecotoxicological studies.

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