[Membrane potential at the low pH in neurons from the snail, Lymnaea stagnalis L].
In the snail, the pH 6.7-6.8 decreased the neuron membrane potential in 10% of cases and increased it in 30%. The hyperpolarisation was equal to 9(5 mV, the effect being abolished by addition of 5-10 M strophantidine. The findings suggest that low pH activates sodium conduction, the hyperpolarisation being caused by activation of the K+/Na(+)-pump.
Korobkova
A M
AM
Pavlov St. Petersburg State Medical University, Russia.
Mishchenko
A A
AA
D000818:Animals; D017952:Ganglia, Invertebrate / Q000166:cytology / Q000502:physiology; D006863:Hydrogen-Ion Concentration; D008195:Lymnaea / Q000502:physiology*; D008564:Membrane Potentials; D009474:Neurons / Q000502:physiology*
Membrannyĭ potentsial bol'shogo prudovika Lymnaea stagnalis L. pri nizkom pH.