Active Na+ uptake in the isolated midgut of larval Sarcophaga bullata |
| |
Authors: | RD Prusch |
| |
Institution: | Division of Biology and Medicine, Brown University, Providence, Rhode Island 02912, U.S.A. |
| |
Abstract: | The isolated midgut of larval Sarcophaga bullata actively accumulates Na+ from the gut lumen into the haemolymph. The active transport of Na+ out of the gut lumen is responsible for the transepithelial potential difference measured across the midgut epithelium, such that the midgut lumen is negative in respect to the haemolymph side. Both the net movement of Na+ out of the midgut lumen and the transepithelial potential are inhibited by CN? and, in addition, the potential in blocked by ouabain. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|