Journal ArticleDOI
Ultrastructure of marine teleost gill epithelia: SEM and TEM study of the chloride cell apical membrane.
Suzanne Dunel-Erb,Pierre Laurent +1 more
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The structure of gill epithelia in the sole, Solea solea, as revealed by transmission and scanning electron microscopy shows a leaky epithelium covering a large part of the gill.Abstract:
This paper deals with the structure of gill epithelia in the sole, Solea solea, as revealed by transmission and scanning electron microscopy. In this marine teleost the chloride cell and its accessory cell form a cellular complex. Apically the plasma membranes of these cells are loosely juxtaposed, thus forming a leaky epithelium covering a large part of the gill.read more
Citations
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Journal ArticleDOI
Molecular biology of major components of chloride cells.
TL;DR: While fish ENaC remains to be identified by molecular cloning and database mining, fish NHE has been cloned and shown to be highly expressed on the apical membrane of CCs, reviving the original model.
Journal ArticleDOI
Chloride cells and the hormonal control of teleost fish osmoregulation
TL;DR: There is no net sodium transport under short-circuit conditions but the chloride secretion process is sodium-dependent and ouabain and 'loop'-diuretic sensitive, and Prolactin appears to cause chloride cell dedifferentiation by reducing both the active-transport and leak pathways proportionately.
Book ChapterDOI
Environmental effects on fish gill structure and function
Steve F. Perry,Pierre Laurent +1 more
TL;DR: The ability of fish to inhabit these diverse and oscillating environments arises from a variety of adaptive physiological mechanisms as discussed by the authors, such as the location of the gill between the external and internal environments and its crucial role in gas transfer, acid-base balance, and ionic regulation.
Book ChapterDOI
Mitochondria-Rich Cells in the Gill Epithelium of Teleost Fishes: An Ultrastructural Approach
M. Pisam,A. Rambourg +1 more
TL;DR: This chapter describes the ultrastructure of chloride cells in the gill epithelium of teleostean fishes and explores the extent to which changes in water salinity can affect this structure in various species.
Journal ArticleDOI
The ultrastructure of chloride cells in the gills of the teleost Oreochromis mossambicus during exposure to acidified water
TL;DR: Chlorine cells turn over quickly in acid water, with a minor increase in ion transport capacity of the gills, supported by the observation that opercular and branchial Na+/K+ ATPase activities in treated fish are only 40%–50% higher than in controls.
References
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Journal ArticleDOI
Junctional complexes in various epithelia
TL;DR: The tight junction is impervious to concentrated protein solutions and appears to function as a diffusion barrier or "seal," and the desmosome and probably also the zonula adhaerens may represent intercellular attachment devices.
Journal ArticleDOI
Fracture faces of zonulae occludentes from "tight" and "leaky" epithelia
TL;DR: Epithelia of intermediate permeabilities exhibited junctions with intermediate or variable morphology, finding that the zonula occludens from a "very leaky" epithelium, the proximal convoluted tubule of the mouse kidney, is extremely shallow in the apical-basal direction, and consists of five or more interconnected junctional strands interposed between luminal and lateral membrane surfaces.
Journal ArticleDOI
Route of passive ion permeation in epithelia.
TL;DR: “Tight junctions” between cells in some epithelia actually provide the main route of passive ion permeation and the degree of junctional tightness may underlie important functional differences between different epithelias.
Journal ArticleDOI
The surface epithelium of teleostean fish gills. Cellular and junctional adaptations of the chloride cell in relation to salt adaptation.
C. Sardet,M. Pisam,J. Maetz +2 more
TL;DR: It is suggested that salt water adaptation triggers a cellular reorganization of the epithelium in such a way that leaky junctions appear at the apex of the chloride cells.
Journal ArticleDOI
Active chloride transport in the in vitro opercular skin of a teleost (Fundulus heteroclitus), a gill-like epithelium rich in chloride cells
TL;DR: The opercular epithelium lining the inside of the gill chamber of the killifish, Fundulus heteroclitus, contains Cl− cells, identical in fine structure to gill Cl− Cells, at the high density of 4 × 105 cells/cm2.
Related Papers (5)
The surface epithelium of teleostean fish gills. Cellular and junctional adaptations of the chloride cell in relation to salt adaptation.
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