Biosynthesis of Lecithin by the CDP-Choline Pathway in Liver Microsomes of Rainbow Trout, Salmo gairdneri
- 1 September 1975
- journal article
- Published by Canadian Science Publishing in Journal of the Fisheries Research Board of Canada
- Vol. 32 (9) , 1633-1637
- https://doi.org/10.1139/f75-189
Abstract
The enzymatic synthesis of lecithin from CDP-choline (14C) was characterized in microsomal preparations from the livers of rainbow trout (Salmo gairdneri). Optimal activity was obtained with the addition of 1,2-digylceride and Mg++ to the incubation medium. There was a 290% stimulation in cholinephosphotransferase activity when the incubation temperature was raised from 15 to 37 C. The results indicate that the CDP-choline pathway is operative in the formation of lecithin in the liver of rainbow trout. The possible function of this reaction in the acclimation offish to environmental temperature is discussed.Keywords
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