Effect of agents influencing the periodic activity of mussels on the in vitro respiration of siphon tissue of Anodonta cygnea L.

Salánki, János and Lukacsovics, Ferenc (1965) Effect of agents influencing the periodic activity of mussels on the in vitro respiration of siphon tissue of Anodonta cygnea L. A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 32. pp. 83-92. ISSN 0365-3005

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Abstract

Authors investigated the changes in the in vitro respiration of the siphon of Anodonta cygnea L. produced by substances capable of modifying the periodic activity of the animal in toto (KCl, CdCl₂, L-cysteine). The followings were established: 1. KCl solutions between 10⁻⁴ M - 10⁻² M concentrations do not produce significant changes in the respiration of tissues. 2. CdCl₂ at 10⁻³ M and higher concentrations produces significant inhibition. 3. L-cysteine considerably increases the ground respiration of siphon tissue. 4. Respiration blocked by 10⁻² M CdCl₂ is restored by cysteine of same molar concentration. 5. The present experiments produced analogous results with those similar ones performed on the gill tissue of Unio tumidus with the difference that the ground respiration of siphon tissue was lower and that only 2·10⁻² M L-cysteine was able to eliminate the inhibition produced by 10⁻² M CdCl₂ on the gill tissue.

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