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A comparative study on the composition and importance of free amino acids in semen of gilthead sea bream, Sparus aurata, and perch, Perca fluviatilis.
MedLine Citation:
PMID:  20924668     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
A comparative study was conducted on the free amino acid composition of gilthead sea bream, Sparus aurata, and perch, Perca fluviatilis. Also the effect of 21 free amino acids on sperm motility was investigated. Spermatozoa were incubated in species-specific motility-inhibiting saline solution containing the different amino acids for 48 h. Thereafter, the motility was activated and investigated using computer-assisted cell motility analysis. Twelve free amino acids, respectively, were detected in S. aurata and P. fluviatilis semen. Arginine, cysteine, glutamic acid, leucine, and methionine occurred in semen of both species. In S. aurata, arginine, glycine, hydroxyproline, lysine, and phenylalanine in concentrations of 1.25 and 2.50 mmol/l, methionine in a concentration of 2.5 mmol/l, and serine in a concentration of 1.25 mmol/l had a positive effect on the motility of spermatozoa. In P. fluviatilis, alanine, asparagine, cysteine, glycine, isoleucine, lysine, methionine, serine, threonine, and valine in concentrations of 2.50 mmol/l positively affected motility. From these data, it can be concluded that the amino acid composition and the effect on motility are species specific. Possible consequences for spermatozoa functionality are discussed.
Authors:
Franz Lahnsteiner
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-06
Journal Detail:
Title:  Fish physiology and biochemistry     Volume:  36     ISSN:  1573-5168     ISO Abbreviation:  Fish Physiol. Biochem.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100955049     Medline TA:  Fish Physiol Biochem     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1297-305     Citation Subset:  IM    
Affiliation:
Department of Organismic Biology, University of Salzburg, Hellbrunnerstrasse 34, 5020, Salzburg, Austria. Franz.Lahnsteiner@sbg.ac.at
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