In the carp kidney, the proximal tubule cells have no infoldings of the basilar plasmatic membrane. In the Salmonidae nephrons the numerous parallel membranes of proximal tubule cell are formed by foldings of the basilar plasmatic membrane with numerous mitochondria in between. In O. nerka and S. malma experiments with MgCl2 injection showed that their kidneys secrete magnesium in contrast to the carp kidney. The numerous invaginations of proximal tubule cells membrane are suggested to be a morphological equivalent of the Na/Mg exchange mechanism.
| Translated title of the contribution | Ultrastructure and functions of the cells of proximal and distal segments of the nephron of anadromous and freshwater fishes |
|---|---|
| Original language | Russian |
| Pages (from-to) | 403-406 |
| Number of pages | 4 |
| Journal | Tsitologiya |
| Volume | 17 |
| Issue number | 4 |
| State | Published - 1 Apr 1975 |
ID: 39274766