This content is PDF only. Please click on the PDF icon to access.
Abstract
The short-circuit current (SCC) across the isolated lens of the toad Bufo marinus can be abolished by iodoacetate or ouabain but is not altered by 2,4-dinitrophenol, acetazolamide, or amiloride. Ethacrynic acid changes the SCC little and not in a manner comparable with that of ouabain. Ouabain and iodoacetate are effective only when placed at the anterior face of the lens from where they also reduce the potential difference (PD).