A histochemical study of cholinesterase on the adductor muscle of the fresh water mussel (Anodonta cygnea L.)

Zs.-Nagy, Imre (1964) A histochemical study of cholinesterase on the adductor muscle of the fresh water mussel (Anodonta cygnea L.). A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 31. pp. 153-157. ISSN 0365-3005

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Abstract

Sarcolemma and endomysium of the adductor muscle in Anodonta cygnea exhibit diffuse, on microscopical granula localized activity. In the adductor muscle also the hydrolysis of BuThCh proceeds; this process is almost completely inhibited by the 10⁻³ to 10⁻⁷ M concentrations of DFP. Hydrolysis of AThCh proceeds at 18 to 20°C exactly so as at 37°C but the decomposition of BuThCh occurs at the lower temperature with less intensity. The ChE enzyms of the adductor muscle do not split the thioacetic acid With the indoxil acetate method an intensive positive result is obtained. The positivity of all reaction discontinues upon the action of 10⁻⁵ M concentr ation of eserin. Such histochemical behaviour of the adductor muscle also seemto point to the fact that we are dealing with a special kind of muscle different from both the smooth and the striated muscle.

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