Repository logo
 
Publication

Testicular development and plasma sex steroid levels in cultured male Senegalese sole Solea senegalensis Kaup

2006Journal article Restricted access
Simple item page
dc.contributor.authorGarcia-Lopez, A.
dc.contributor.authorFernandez-Pasquier, V.
dc.contributor.authorCouto, Elsa
dc.contributor.authorCanario, Adelino V. M.
dc.contributor.authorSarasquete, C.
dc.contributor.authorMartínez-Rodriguez, G.
dc.date.accessioned2014-05-15T10:45:20Z
dc.date.available2014-05-15T10:45:20Z
dc.date.issued2006
dc.date.updated2014-05-13T09:40:11Z
dc.description.abstractTesticular development and plasma levels of sex steroids (11-ketotestosterone (11-KT), testosterone (T) and 17,20 -dihydroxy-4-pregnen-3-one (17,20 -P)) were investigated for the Wrst time in cultured male Senegalese sole Solea senegalensis. The germ cell dynamics and gonadosomatic index (IG) were monitored. Based on the relative abundance of the diVerent types of germ cells present, the spermatogenetic cycle was divided into Wve stages: early (I; spermatogonia (SPG)), mid (II; SPG, spermatocytes (SPC) and spermatids (SPD)), and late spermatogenesis (III; SPC, SPD, and spermatozoa (SPZ)), functional maturation (IV; SPD and SPZ), and recovery (V; SPD, SPZ, and SPG). During summer, Wsh had stage I and V testes and the lowest values in plasma levels of sex steroids and IG. Testicular recrudescence seemed to begin in autumn, as denoted by the Wrst increase in IG and in the levels of 11-KT and T, and the appearance of testes at stage II and III. During winter, the levels of 11-KT and T peaked and soon began to decrease, the IG slightly declined and the proportion of running males (RM) gradually increased. In spring, levels of 11-KT and T continued to decline, the IG slightly increased and the proportion of RM peaked concomitantly with the occurrence of stage IV testes. Plasma levels of 17,20 -P did not change signiWcantly throughout testicular development. Transformation of SPD into SPZ followed a group-synchronous fashion, a phenomenon which parallels asynchronous oocyte development reported in females. This mechanism would be consistent with the observed small quantity of sperm that can be manually stripped at any one time and other aspects of S. senegalensis reproductive biology.por
dc.identifier.citationGarcia-Lopez, A.; Fernandez-Pasquier, V.; Couto, E.; Canario, A. V. M.; Sarasquete, C.; Martinez-Rodriguez, G. Testicular development and plasma sex steroid levels in cultured male Senegalese sole Solea senegalensis Kaup, General and Comparative Endocrinology, 147, 3, 343-351, 2006.por
dc.identifier.doihttp://dx.doi.org/10.1016/j.ygcen.2006.02.003
dc.identifier.issn0016-6480
dc.identifier.otherAUT: ACA00258;
dc.identifier.urihttp://hdl.handle.net/10400.1/3953
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectCulturelpor
dc.subjectReproductionpor
dc.subjectSex steroidspor
dc.subjectSolea senegalensispor
dc.subjectTesticular developmentpor
dc.titleTesticular development and plasma sex steroid levels in cultured male Senegalese sole Solea senegalensis Kauppor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage351por
oaire.citation.issue3por
oaire.citation.startPage343por
oaire.citation.titleGeneral and Comparative Endocrinologypor
oaire.citation.volume147por
person.familyNameCouto
person.familyNameCanario
person.givenNameElsa
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0001-9336-9963
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id56568523700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationcc3f6bfd-86b1-45b2-a629-cddf25f1c828
relation.isAuthorOfPublication5f6e51ee-9113-469e-8b9e-f30f2d452521
relation.isAuthorOfPublication.latestForDiscoverycc3f6bfd-86b1-45b2-a629-cddf25f1c828

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Testicular development and plasma sex steroid levels in cultured male Senegalese sole Solea senegalensis Kaup.pdf
Size:
661.86 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CCM2-Artigos (em revistas ou actas indexadas)