Classification of four types of mitochondria-rich cells in the yolk-sac membrane of Mozambique tilapia embryos, defined by immunofluorescence patterns for Na+/K+-ATPase, NKCC1a, NCC, NHE3 and CFTR
| Type I | Type II | Type III | Type IV | |
|---|---|---|---|---|
| Na+/K+-ATPase | Basolateral | Basolateral | Basolateral | Basolateral |
| NKCC1a | – | – | Basolateral | Basolateral |
| NCC | – | Apical | – | – |
| NHE3 | – | – | Apical or – | – |
| CFTR | – | – | – | Apical |