Non-methylene-Interrupted Fatty Acids in Phospholipids
of the Membranes of the Mussel Crenomytilus grayanus

M. V. Zakhartsev*, N. V. Naumenko**, and V. P. Chelomin*

* Pacific Institute of Oceanology, Far East Division, Russian Academy of Sciences,
Baltiiskaya ul. 43, Vladivostok, 690041 Russia

** Far East State University, ul. Sukhanova 43, Vladivostok, 690600, Russia

Received April 2, 1997

Abstract—The distribution of non-methylene-interrupted fatty acids (NMIFAs) in the subcellular fractions of
the gill and hepatopancreas of the mussel Crenomytilis grayanus is investigated. A greater percentage of NMI-
FAs in the subcellular fractions of both organs, notably the gills, was found in aminophospholipids (phosphati-
dylethanolamine and phosphatidylserine) compared to that of phosphatidylcholine. The greatest percentage of
NMIFAs occurred in phosphatidylserine of the mitochondrial fraction of both organs. Hence, functionally dif-
ferent organs exhibited similar patterns of NMIFA distribution by phospholipid classes. NMIFAs in the mem-
branes of marine bivalves may act as inhibitors of lipid peroxidation processes.

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