LOCALIZATION OF NADPH-DIAPHORASE AND CHOLINE ACETYLTRANSFERASE IN THE CENTRAL NERVOUS SYSTEM OF THE BIVALVE
MOLLUSK MACTRA SULCATORIA
E. P. Kotsyuba
Institute of Marine Biology RAS, Vladivostok;
e-mail: inmarbio@mail.primorye.ru
The presence of NADPH-diaphorase and choline acetyltransferase (ChAT) in all ganglia of the Mactra
sulcatoria was demonstrated by histochemical and electron histochemical methods. Pecularities of cholinergic and
nitrergic neurons localization were revealed in nervous ganglia, and their relative content there was estimated. It
was established that in reaction to ChAT only large neurons were marked. Ultrastructural localization of
NADPH-diaphorase and ChAT was determined in neurons and neuropile. The data obtained testify that NADPH-diaphorase
and ChAT are located in different types of nervous cells. The opportunity of functional cooperation in activity of
cholinergic and nitrergic systems in mollusks is discussed.
Key words: NADPH-diaphorase, choline acetyltransferase, central nervous system, mollusks
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