Comparative study on the cholinesterase activity of different tissues of freshwater mussel (Anodonta cygnea L.)

Salánki, János and Varanka, István and Hiripi, László (1967) Comparative study on the cholinesterase activity of different tissues of freshwater mussel (Anodonta cygnea L.). A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 34. pp. 99-116. ISSN 0365-3005

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Abstract

ChE activity measurements were made in the various organs (heart, adductor, gill, intestine, mantle, lymph) of Anodonta cygnea L. by Hestrin’s (1949) biochemical method. It was found that the extracts of all tissues examined are capable of ACh decomposition. ChE activity was determined during separated measurements also in the auricular and ventricular parts of the heart and in the “phasic” and “tonic” parts of the adductors. It was established that the activity of the auricle and of the phasic part was considerably higher than that of the ventricle and of the tonic part of the adductor, respectively, and it was concluded that this might be of great interest from functional point of view. The decomposition rates of the various substrates (ACh, BuThCh, MeCh, BeCh) and the sensitivity to both eserine and DFP suggest that the ChE examined by us is specific (AChE) suggesting that there are cholinerg mechanisms present in freshwater mussel.

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