| Popis: |
The predominant phospholipids of Phormia regina are those containing ethanolamine. The biosynthesis of this ethanolamine from 14 C-labelled possible precursors (ethanolamine, serine, phosphorylethanolamine, phosphorylserine, and phosphatidylserine) by cell-free preparations from larval fat body homogenates has been investigated. Serine was incorporated into phospholipid ethanolamine, and the overall results demonstrated that in P. regina phospholipid ethanolamine can be derived from phospholipid serine, which was previously incorporated into the phospholipids by an exchange reaction with the choline moiety of phosphatidylcholine. |
