Document Detail

Metabolism of fatty acids by bovine spermatozoa.
MedLine Citation:
PMID:  4342556     Owner:  NLM     Status:  MEDLINE    
The incorporation of (14)C-labelled myristic, palmitic, stearic, oleic and linoleic acids in vitro into the lipids of bovine spermatozoa was measured at intervals from 2min to 2h. All acids were rapidly incorporated into diglycerides, myristic acid being metabolized to the greatest extent. Whereas the low incorporation of acids into total phospholipids reflected the relative stability of the major phospholipid fractions in sperm, the minor phospholipids, particularly phosphatidylinositol, showed comparatively high metabolic activity. Although, in general, saturated acids were incorporated more actively than unsaturated substrates, stearic acid was poorly incorporated into all lipids except phosphatidylinositol. In regard to fatty acid composition of sperm lipids it was notable that diglycerides contained myristic acid as the major component, and this acid was also a prominent moiety of phosphatidylinositol. Docosahexaenoic acid was the principal fatty acid of the major phospholipid classes. These findings have been discussed in relation to the role of lipids in the metabolism of spermatozoa.
A R Neill; C J Masters
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Biochemical journal     Volume:  127     ISSN:  0264-6021     ISO Abbreviation:  Biochem. J.     Publication Date:  1972 Apr 
Date Detail:
Created Date:  1972-12-04     Completed Date:  1972-12-04     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2984726R     Medline TA:  Biochem J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  375-85     Citation Subset:  IM    
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MeSH Terms
Carbon Isotopes
Chromatography, Thin Layer
Fatty Acids / metabolism*
Glycerides / metabolism
Linoleic Acids / metabolism
Oleic Acids / metabolism
Palmitic Acids / metabolism
Phosphatidylinositols / metabolism
Phospholipids / biosynthesis,  metabolism
Phosphorus / analysis
Semen / analysis
Spermatozoa / analysis,  metabolism*
Stearic Acids / metabolism
Reg. No./Substance:
0/Carbon Isotopes; 0/Fatty Acids; 0/Glycerides; 0/Linoleic Acids; 0/Oleic Acids; 0/Palmitic Acids; 0/Phosphatidylinositols; 0/Phospholipids; 0/Stearic Acids; 7723-14-0/Phosphorus

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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