Document Detail


Eicosanoid generation in the intertidal barnacle, Balanus perforatus--effect of season and reproductive status.
MedLine Citation:
PMID:  16161009     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The nature and quantity of the principal lipoxygenase (LO) products generated by the intertidal barnacle Balanus perforatus were examined at monthly intervals and their potential involvement in reproductive events was investigated. The main mono-hydroxy products generated were found to be formed through the action of an 8-lipoxygenase (8-LO) activity and were the mono-hydroxy fatty acids, 8-hydroxyeicosapentaenoic acid (HEPE) and 8-hydroxyeicosatetraenoic acid. Generation of these products was found to be correlated with the environmental seawater temperature, although no change in either 8-LO activity or the precursor fatty acid levels in total phospholipids was found with the time of the year. Changes in fatty acid composition measured in animals collected from summer and winter conditions were found to follow the pattern expected by homeoviscous adaptation of a cold-acclimated animal. Oogenesis was found to occur in August and was linked to a significant reduction in 8-HEPE generation. Spermatozoa were found to be present year-round in the seminal vesicles although the testes became atrophic during the winter months.
Authors:
Ben H Maskrey; J Gordon Bell; Andrew F Rowley
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of experimental zoology. Part A, Comparative experimental biology     Volume:  303     ISSN:  1548-8969     ISO Abbreviation:  J. Exp. Zoolog. Part A Comp. Exp. Biol.     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-09-19     Completed Date:  2006-06-30     Revised Date:  2009-10-05    
Medline Journal Info:
Nlm Unique ID:  101168223     Medline TA:  J Exp Zool A Comp Exp Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  904-16     Citation Subset:  IM    
Copyright Information:
(c) 2005 Wiley-Liss, Inc.
Affiliation:
Department of Biological Sciences, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, Wales, UK.
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MeSH Terms
Descriptor/Qualifier:
Animals
Eicosanoids / metabolism*
Fatty Acids / metabolism
Female
Male
Oocytes / physiology
Reproduction / physiology
Seasons*
Spermatogenesis / physiology
Spermatozoa / physiology
Temperature
Thoracica / metabolism*
Chemical
Reg. No./Substance:
0/Eicosanoids; 0/Fatty Acids

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


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