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Ecotoxicology. 2017 Jan;26(1):74-80. doi: 10.1007/s10646-016-1741-8. Epub 2016 Oct 28.

Differential metabolic responses in three life stages of mussels Mytilus galloprovincialis exposed to cadmium.

Wu H1, Xu L2,3, Yu D2,3, Ji C2.

Author information

1
Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai, 264003, P. R. China. hfwu@yic.ac.cn.
2
Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai, 264003, P. R. China.
3
University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.

Abstract

Cadmium (Cd) is one of the most important metal contaminants in the Bohai Sea. In this work, NMR-based metabolomics was used to investigate the toxicological effects of Cd at an environmentally relevant concentration (50 µg L-1) in three different life stages (D-shape larval, juvenile and adult) of mussels Mytilus galloprovincialis. Results indicated that the D-shape larval mussel was the most sensitive life stage to Cd. The significantly different metabolic profiles meant that Cd induced differential toxicological effects in three life stages of mussels. Basically, Cd caused osmotic stress in all the three life stages via different metabolic pathways. Cd exposure reduced the anaerobiosis in D-shape larval mussels and disturbed lipid metabolism in juvenile mussels, respectively. Compared with the D-shape larval and juvenile mussels, the adult mussels reduced energy consumption to deal with Cd stress.

KEYWORDS:

Cadmium; Metabolomics; Mytilus galloprovincialis; NMR; Toxicological effects

PMID:
27796687
DOI:
10.1007/s10646-016-1741-8
[Indexed for MEDLINE]

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