Document Detail

Radiorespirometric studies of carbohydrate metabolism by washed spermatozoa of various species.
MedLine Citation:
PMID:  318338     Owner:  NLM     Status:  MEDLINE    
1. The patterns of 14CO2 evolution from specifically labeled glucose substrates by washed bull, ram, boar, rabbit, dog, rooster and turkey spermatozoa were similar and indicated the Embden-Meyerhof and Kreb's cycle pathways as the major route of energy metabolism. 2. Honey bee spermatozoa metabolized glucose-3,4-[14C], glucose-[U-14C] or fructose-[U-14C], but not glucose-1-[14C], glucose-2-[14C]or glucose-6-[14C], indicating the presence of the glycolytic pathway, but the absence of respiration via the Kreb's cycle. 3. The rate of glycolysis exceeded the rate of respiration in the spermatozoa of all the species studied. 4. A preferential utilization of glucose-1-[14C] over glucose-6-[14C] was evident in some sperm samples, but no consistent indication of pentose cycle metabolism was observed, due to considerable variability between samples within each group. 5. Fructose metabolism was greater than glucose metabolism in the rooster, less in the dog, boar and turkey, and similar in the spermatozoa from the other species examined. 6. Only ram and bull spermatozoa metabolized acetate-1-[14C] to any extent.
L A Kraft; C W Foley; B Howarth; M S Blum; A D Johnson
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Comparative biochemistry and physiology. B, Comparative biochemistry     Volume:  60     ISSN:  0305-0491     ISO Abbreviation:  Comp. Biochem. Physiol., B     Publication Date:  1978  
Date Detail:
Created Date:  1989-07-24     Completed Date:  1989-07-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2984730R     Medline TA:  Comp Biochem Physiol B     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  233-8     Citation Subset:  IM    
Department of Animal Science, University of Georgia, Athens 30602.
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MeSH Terms
Carbohydrate Metabolism*
Chickens / metabolism*
Sheep / metabolism*
Species Specificity
Spermatozoa / metabolism*
Turkeys / metabolism*

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