Kinetics of potassium transport across trout gills

1. 1. Kinetics of potassium transport across trout gills was studied, using an isolated-head preparation. 2. 2. Potassium exchanges were shown to take place across secondary lamellae only. 3. 3. Influx of potassium was saturable and fitted satisfactorily the Lineweaver-Burk linear plot. 4. 4. Result...

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Veröffentlicht in:	Comparative biochemistry and physiology. A, Comparative physiology Comparative physiology, 1991, Vol.99 (4), p.615-620
Hauptverfasser:	Gardaire, E, Isaia, J, Bornancin, M
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Biological and medical sciences Biological Transport Blood gas. Hemoglobin. Myoglobin. Hemotissulary gas exchange. Acid-base balance Brackish chemical kinetics Freshwater Fundamental and applied biological sciences. Psychology gills Gills - metabolism ion transport Kinetics Marine Oncorhynchus mykiss osmoregulation potassium Potassium - metabolism Potassium Channels - metabolism Salmo gairdneri Trout - metabolism Vertebrates: respiratory system Water-Electrolyte Balance
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Zusammenfassung:	1. 1. Kinetics of potassium transport across trout gills was studied, using an isolated-head preparation. 2. 2. Potassium exchanges were shown to take place across secondary lamellae only. 3. 3. Influx of potassium was saturable and fitted satisfactorily the Lineweaver-Burk linear plot. 4. 4. Results suggest that these exchanges occur through potassium channel. 5. 5. Kinetics of potassium exchanges is discussed in relation to the maintenance of the osmoregulation in fish.
ISSN:	0300-9629
DOI:	10.1016/0300-9629(91)90139-4