SOME CHEMICAL ASPECTS OF THE POTASSIUM EFFECT.
The ability of Nitella to distinguish electrically between Na(+) and K(+) (potassium effect) appears to depend on several organic substances (or groups of substances). Of these R(MK) and R(SK) determine the mobility and partition coefficient (S) respectively of K(+) while R(MNa) and R(SNa) do the same for Na(+). These substances can vary independently and this variation is susceptible to experimental control.
Osterhout
W J
WJ
Laboratories of The Rockefeller Institute for Medical Research.