Transactions of KarRC RAS :: Scientific publications
Transactions of KarRC RAS :: Scientific publications

Transactions of KarRC RAS :: Scientific publications
Karelian Research Centre of RAS
ISSN (print): 1997-3217
ISSN (online): 2312-4504
Transactions of KarRC RAS :: Scientific publications
Background Editorial committee Editorial Office Statute For authors For reviewer Russian version
Transactions of KarRC RAS :: Scientific publications

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Н.Н. Фокина, И.В. Суховская, Т.Р. Руоколайнен, А.А. Кочнева, И.Н. Бахмет, К.Е. Николаев, И.А. Левакин.
Оценка липидного состава и некоторых компонентов антиоксидантной системы мидий Mytilus edulis в условиях экспериментального заражения метацеркариями Himasthla elongata
// Труды КарНЦ РАН. No 6. Сер. Экспериментальная биология. 2018. C. 81-94
N.N. Fokina, I.V. Sukhovskaya, T.R. Ruokolainen, A.A. Kochneva, I.N. Bakhmet, K.E. Nikolaev, I.A. Levakin. Assessment of the lipid composition and some components of the antioxidant system in blue mussels Mytilus edulis experimentally infected with Himasthla elongata metacercariae // Transactions of Karelian Research Centre of Russian Academy of Science. No 6. Experimental biology. 2018. Pp. 81-94
Keywords: phospholipids; fatty acids; reduced glutathione; glutathione-S-transferase; catalase; bivalves; trematodes
The long-term effect of experimental infection with metacercariae of Himasthla elongata (Mehlis, 1831) (Himasthlidae) on some biochemical indices of its second intermediate host, Mytilus edulis (the content of reduced glutathione, structural and storage lipids, fatty acids of total lipids, and the activity of glutathione-S-transferase, catalase and peroxidase) was investigated. It was shown that the parasitic invasion affects catalase activity in mussel gills and foot, as well as alters the content of some phospholipids and fatty acids, mainly in mussel gills, digestive gland and foot. The decreased catalase activity and elevated levels of lysophosphatidylcholine and sphingomyelin, as well as the low content of polyunsaturated fatty acids (primarily docosahexaenoic acid, 22:6n-3) in the foot of infected mussels generally reflect the presence of H. elongata metacercariae in this organ. At the same time, changes in several biochemical indices in the gills of infected mussels (essentially higher catalase activity, reduced content of cholesterol esters and modifications in the fatty acid composition) indicate a stress effect caused by H. elongata metacercariae. It is assumed that the studied biochemical indices are significantly affected immediately, during penetration of the parasites in the host tissues (within the first day), while the long-term effect of the parasite infection on the second intermediate host (during a year) eventually leads to a stabilization of the host-parasite relationship, including the investigated components of the antioxidant system, as well as the lipid composition. This assumption requires additional research.
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  Last modified: June 26, 2018