Document Detail

11-ketotestosterone stimulates putative sex pheromone production in the male peacock blenny, Salaria pavo (Risso 1810).
MedLine Citation:
PMID:  18633136     Owner:  NLM     Status:  MEDLINE    
Male peacock blennies (Salaria pavo) release odors from their anal glands and, possibly, from their gonads that attract reproductive females. The current study investigated the effects of 11-ketotestosterone (KT) on development of the anal glands, testes, and accessory testicular organs as well as the subsequent olfactory potency of their secretions. After 3 wk of KT treatment (5 mg/kg in silastic implants), clusters of cells secreting neutral mucins differentiated in the anal gland of all treated males, whereas this occurred in only one control male. Secretions by anal glands from KT-treated males elicited greater olfactory responses, as assessed by electro-olfactography, than those from controls. Treatment with KT stimulated testicular gland growth and sialomucin secretion but had no clear effect on the germinal region of the testis; KT also stimulated enlargement of, and fluid secretion in, the blind pouches (paired evaginations of the spermatic ducts). Secretions by the testes and fluid in blind pouches from KT-treated males elicited greater olfactory responses than those from controls. In conclusion, KT stimulates development of the anal glands and testicular accessory organs and promotes odorant secretion, the putative multicomponent male peacock blenny pheromone.
Rui M Serrano; Orlando Lopes; Peter C Hubbard; Jorge Araújo; Adelino V M Canário; Eduardo N Barata
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-07-16
Journal Detail:
Title:  Biology of reproduction     Volume:  79     ISSN:  0006-3363     ISO Abbreviation:  Biol. Reprod.     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-10-27     Completed Date:  2008-12-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0207224     Medline TA:  Biol Reprod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  861-8     Citation Subset:  IM    
CCMAR-CIMAR Laboratório Associado, Universidade do Algarve, 8005-139 Faro, Portugal.
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MeSH Terms
Anal Sacs / growth & development
Perciformes / metabolism*
Sex Attractants / metabolism*
Testis / growth & development
Testosterone / analogs & derivatives*,  metabolism
Reg. No./Substance:
0/Sex Attractants; 53187-98-7/11-ketotestosterone; 58-22-0/Testosterone

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

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