[Effect of osmotic stress on the surface potential of the extremities of a triton, Pleurodeles waltlii Michah].
Surface potentials of Pleurodeles limb have been studied under the action of NaCl solution made hyperosmotic with various chemicals (choline, propionate, sucrose, urea). These potentials were suppressed or lowered to a variable extent according to the solution used. The interpretation of the mechanism of action of these chemicals has led us to propose an hypothesis on the origin of the electrical potentials of the epidermis.
D000663:Amphibians / Q000502:physiology; D000818:Animals; D002794:Choline / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D006982:Hypertonic Solutions; D007038:Hypotonic Solutions; D008564:Membrane Potentials / Q000187:drug effects*; D011422:Propionates / Q000494:pharmacology; D012867:Skin / Q000187:drug effects; D012965:Sodium Chloride / Q000494:pharmacology*; D013395:Sucrose / Q000494:pharmacology; D014508:Urea / Q000494:pharmacology
D006982:Hypertonic Solutions; D007038:Hypotonic Solutions; D011422:Propionates; D012965:Sodium Chloride; D013395:Sucrose; D014508:Urea; D002794:Choline
Influence des chocs osmotiques sur les potentiels de surface du membre de Triton, Pleurodeles waltii Michah