Studies in the biochemistry of cirripede eggs: II. Changes in lipid composition during development ofBalanus balanoidesandB. Balanus.
- 1 June 1966
- journal article
- Published by Cambridge University Press (CUP) in Journal of the Marine Biological Association of the United Kingdom
- Vol. 46 (2), 249-261
- https://doi.org/10.1017/s0025315400027120
Abstract
The eggs of two common cirripedes,Balanus balanoidesandB. balanus,have been analysed at different stages of development for their lipid content.Triglyceride and phospholipid are the main lipid components; small amounts of free fatty acids, lipochromes, sterols, and some very non-polar material (possibly hydrocarbon) are also present.Lecithin followed by phosphatidyl ethanolamine make up a large proportion of the phospholipid fraction.The fatty-acid spectrum is similar to that of other marine animals being rich in unsaturated fatty acids of which eicosapentaenoic (20:5) and docosahexaenoic (22:6) predominate.Triglyceride is lost during development.Initially some lecithin and phosphatidyl ethanolamine are lost during development, but they accumulate in the late stages.Cardiolipin shows a marked increase in quantity during the late stages; this is presumably associated with increased cellular differentiation.There is a tendency for all the components to approach the values for the adult bodies—taken when lipid reserves are minimal—as the embryos develop.Keywords
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