CHANGES OF APPARENT IONIC MOBILITIES IN PROTOPLASM

Open Access
Publisher Website
Google Scholar
Abstract
The normal P. D. across the protoplasm of Valonia macrophysa is about 10 mv. negative (inwardly directed). On adding 0.01 M guaiacol to the sea water the P. D. becomes positive and then slowly returns approximately to the normal value. In many cases this behavior is not much affected by raising the pH and so increasing the concn. of the guaiacol ion. But if we wait until the exposure to guaiacol has lasted 5 min. the cell then behaves as though it had been sensitized to the action of the guaiacol ion which appears to be far more effective than undissociated guaiacol in making the P. D. more positive. This may be due in part to the high apparent mobility of the guaiacol ion and in part to alterations which it produces in the protoplasm.

This publication has 1 reference indexed in Scilit: