Premium
Comparison of ‘Pseudobranch’ type and ‘Chloride’ type cells in the pseudobranch of marine, freshwater and euryhaline teleosts
Author(s) -
Mattey D. L.,
Moate R.,
Morgan M.
Publication year - 1978
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1978.tb03465.x
Subject(s) - biology , euryhaline , rainbow trout , cell type , anatomy , trout , bass (fish) , cell , fish <actinopterygii> , biochemistry , fishery
The degree of similarity between the ‘pseudobranch type’ and ‘chloride type’ cells in the pseudobranch of bass ( Dicentrachus labrax (L)), smelt ( Osmerus esperlangus ) and rainbow trout ( Salmo gairdneri ) was studied. The pseudobranch of bass and smelt contains two specialised cell types commonly known as ‘chloride type’ and ‘pseudobranch type’ cells, whereas rainbow trout only possess the latter type. ‘Pseudobranch type’ cells are characterised by the orderly arrangement of parallel tubules around their closely packed mitochondria. ‘Chloride type’ cells are identified by their highly branched tubular network, randomly distributed mitochondria, and the presence of an apical pit. Although ultra‐structural changes were noted under osmotic stress, the ‘chloride type’ and ‘pseudobranch type’ cells remained distinguishable from each other and gave no reason to suggest that they were different forms of the same cell type. It was concluded that the two are distinct cell types, performing different, though possibly related, functions.