Abstract
The composition of lipids and fatty acids (FAs) in mussels Mytilus edulis exposed to various concentrations of nickel salt under reduced salinity of seawater (15‰) has been investigated. Alterations of the lipid composition in mussels in response to reduced salinity and the exposure to Ni have been observed. It is noted that changes in the content of phosphatidylserine and cholesterol and in phospholipid unsaturation in the gills and hepatopancreas of mussels under low salinity, most likely, indicate the development of pathological processes and activation of lipid peroxidation. Under normal salinity (25‰), similar changes in the lipid composition of the mussels studied have been observed at the initial stages of the experiment; however, by the end of the experiment, the phospholipid unsaturation is shown to be restored and the content of phosphatidylcholine increases.
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ACKNOWLEDGMENTS
The authors are grateful to the directorate and staff of the Kartesh Biological Station, Zoological Institute, Russian Academy of Sciences, for the opportunity to conduct research at the station and for assistance in the experiments.
Funding
This work was carried out within the framework of State Assignment no. 0218-2019-0076 (no. AAAA-A17-117031710039-3) and supported by the Russian Foundation for Basic Research, project no. 17-04-01431_a.
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Fokina, N.N., Ruokolainen, T.R., Bakhmet, I.N. et al. Modifying Effect of Low Salinity on Ni-Induced Alterations of the Lipid Composition in Mussels Mytilus edulis L.. Biol Bull Russ Acad Sci 47, 674–682 (2020). https://doi.org/10.1134/S1062359020060059
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DOI: https://doi.org/10.1134/S1062359020060059