[Effect of temperature stress on activities of nitric oxide synthase and tyrosine hydroxylase in the central nervous system of bivalve molluscs].
Effects of temperature stress on nitric oxide synthase (NOS) and tyrosine hydroxylase (TH) activities in CNS of two species of bivalve molluscs Mizuchopecten yessoensis and Chlamys farreri nipponensis (Pectinidae) were studied using NADPH-diaphorase histochemistry and ummunocytochemistry. General and specific peculiarities in distribution and relative content ofNOS- and TH-positive neurons in nervous ganglia were revealed in norm and under stress at 30 degrees C for 10, 30, and 60 min. The initial stress stage (for 10 min) has been shown to be accompanied by an increase of the relative content of TH-positive neurons in some CNS areas of both mollusc species. In Chlamys farreri nipponensis under normal conditions, the presence of NOS in the CNS and its significant activation under temperature stress might have possibly been an important neuroprotective component of stress reaction in some mollusc species.
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D000818:Animals; D005724:Ganglia / Q000201:enzymology* / Q000648:ultrastructure; D018869:Heat-Shock Response / Q000502:physiology*; D009474:Neurons / Q000201:enzymology* / Q000648:ultrastructure; D019001:Nitric Oxide Synthase / Q000378:metabolism*; D049897:Pectinidae / Q000201:enzymology* / Q000648:ultrastructure; D013045:Species Specificity; D014446:Tyrosine 3-Monooxygenase / Q000378:metabolism*
D019001:Nitric Oxide Synthase; D014446:Tyrosine 3-Monooxygenase