Abstract:
:The embryotoxicity of CuO NPs was evaluated in the black sea urchin Arbacia lixula embryos, by using 24-well plates. Fertilized eggs were exposed to five doses of CuO NPs ranging from 0.07 to 20 ppb, until pluteus stage. CuO NPs suspensions in artificial seawater formed agglomerates of 80-200 nm size, and copper uptake was 2.5-fold up in larvae exposed to high NP concentrations in respect to control. Developmental delay and morphological alteration, including skeletal abnormalities, were observed, as well as impairment in cholinergic and serotonergic nervous systems. These findings suggest the potential of CuO NPs to interfere with the normal neurotransmission pathways, thus affecting larval morphogenesis. Overall, the embryotoxicity tests are effective for evaluation of nanoparticle effects on the health of aquatic biota. Furthermore, as the black sea urchin A. lixula demonstrated to be vulnerable to NP exposure, it may be a valid bioindicator in marine biomonitoring and ecotoxicological programmes.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Maisano M,Cappello T,Catanese E,Vitale V,Natalotto A,Giannetto A,Barreca D,Brunelli E,Mauceri A,Fasulo Sdoi
10.1016/j.marenvres.2015.05.010subject
Has Abstractpub_date
2015-10-01 00:00:00pages
121-7eissn
0141-1136issn
1879-0291pii
S0141-1136(15)00077-Xjournal_volume
111pub_type
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journal_title:Marine environmental research
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journal_title:Marine environmental research
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journal_title:Marine environmental research
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journal_title:Marine environmental research
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