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Periaxonal K+ regulation in the small squid Alloteuthis. Studies on isolated and in situ axons
N J Abbott1, E M Lieberman, Y Pichon
1Marine Biological Association Laboratory, Citadel Hill, Plymouth, United Kingdom.
Biophysical Journal
|February 1, 1988
Abstract:
A novel giant axon preparation from the squid Alloteuthis is described. Properties of in situ and isolated axons are similar. Periaxonal K+ accumulation is a function of the physiological state of the animal and of the axon and its sheathing layers. Carefully dissected isolated axons, and axons in situ in a healthy mantle, show much less K+ accumulation than previously reported in squid. It is suggested that the Schwann cells are involved in the observed K+ regulation.