Abstract：
:Gadolinium (Gd), a metal of the lanthanide series used as contrast agent for magnetic resonance imaging, is released into the aquatic environment. We investigated the effects of Gd on the development of four sea urchin species: two from Europe, Paracentrotus lividus and Arbacia lixula, and two from Australia, Heliocidaris tuberculata and Centrostephanus rodgersii. Exposure to Gd from fertilization resulted in inhibition or alteration of skeleton growth in the plutei. The similar morphological response to Gd in the four species indicates a similar mechanism underlying abnormal skeletogenesis. Sensitivity to Gd greatly varied, with the EC50 ranging from 56 nM to 132 μM across the four species. These different sensitivities highlight the importance of testing toxicity in several species for risk assessment. The strong negative effects of Gd on calcification in plutei, together with the plethora of marine species that have calcifying larvae, indicates that Gd pollution is urgent issue that needs to be addressed.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Martino C,Bonaventura R,Byrne M,Roccheri M,Matranga Vdoi
10.1016/j.marenvres.2016.06.001subject
Has Abstractpub_date
2017-07-01 00:00:00pages
98-106eissn
0141-1136issn
1879-0291pii
S0141-1136(16)30098-8journal_volume
128pub_type
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更新日期：2014-02-01 00:00:00
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