The effects of starvation and sexual maturation on Na+ transbranchial fluxes following direct transfer from fresh water to sea-water in rainbow trout (Salmo gairdneri).
1. The perfused isolated head technique has been used to measure sodium arterial fluxes following direct transfer from fresh water to sea-water. 2. A starvation-related decrease in net sodium flux is reported. 3. Sexual maturation slackens the decrement of this net flux. 4. In starved fish, the cytological modifications of chloride cells following such a transfer are delayed. 5. This effect of starvation is discussed in terms of lamella sodium imperviousness.
D000818:Animals; D001786:Blood Glucose / Q000378:metabolism; D001798:Blood Proteins / Q000378:metabolism; D005260:Female; D005508:Food Deprivation; D005618:Fresh Water; D005880:Gills / Q000378:metabolism*; D008297:Male; D012487:Salmonidae / Q000378:metabolism*; D012623:Seawater; D012741:Sexual Maturation; D012964:Sodium / Q000097:blood* / Q000378:metabolism; D000254:Sodium-Potassium-Exchanging ATPase / Q000378:metabolism; D014337:Trout / Q000378:metabolism* / Q000502:physiology
D001786:Blood Glucose; D001798:Blood Proteins; D012964:Sodium; D000254:Sodium-Potassium-Exchanging ATPase