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Article: Sex steroids in intersexual fishes

TitleSex steroids in intersexual fishes
Authors
KeywordsMonopterus Albus
Protandry
Protogyny
Rhabdosargus Sarba
Sex Reversal
Sex Steroids
Steroidogenesis
Issue Date1989
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0920-1742
Citation
Fish Physiology And Biochemistry, 1989, v. 7 n. 1-6, p. 229-235 How to Cite?
AbstractStudies of the in vitro gonadal steroidogenesis in intersexual fishes, using labelled testosterone as precursor, showed large species variation. The protogynous Monopterus albus produced predominantly 5α-reduced metabolites while the protandrous Rhabdosargus sarba produced mainly 5β-reduced products. Both fishes synthesized 11-oxotestosterone; the synthesis of which appeared to mediate mainly through adrenosterone in M. albus but via 11β-hydroxytestosterone in R. sarba. When the plasma levels of androstenedione, testosterone, 11-oxotestosterone, 11β-hydroxytestosterone, estrone and 17β-estradiol among the male, intersexual and female phase of the same species were compared, available data showed that either there was no obvious difference among the different sexual phases or the differences could be accounted for by the seasonal reproductive activities of the animal. Except for androstenedione, there are no marked changes in plasma testosterone, 11-oxotestosterone, 11β-hydroxytestosterone, estrone and 17β-estradiol levels in the intersexual phase compared with the female and male, it is unlikely that these classical sex steroids act as a primary trigger of natural sex reversal in these fishes; the role of androstenedione awaits further elucidation. © 1989 Kugler Publications.
Persistent Identifierhttp://hdl.handle.net/10722/173339
ISSN
2015 Impact Factor: 1.442
2015 SCImago Journal Rankings: 0.738
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChan, STHen_US
dc.contributor.authorYeung, WSBen_US
dc.date.accessioned2012-10-30T06:29:26Z-
dc.date.available2012-10-30T06:29:26Z-
dc.date.issued1989en_US
dc.identifier.citationFish Physiology And Biochemistry, 1989, v. 7 n. 1-6, p. 229-235en_US
dc.identifier.issn0920-1742en_US
dc.identifier.urihttp://hdl.handle.net/10722/173339-
dc.description.abstractStudies of the in vitro gonadal steroidogenesis in intersexual fishes, using labelled testosterone as precursor, showed large species variation. The protogynous Monopterus albus produced predominantly 5α-reduced metabolites while the protandrous Rhabdosargus sarba produced mainly 5β-reduced products. Both fishes synthesized 11-oxotestosterone; the synthesis of which appeared to mediate mainly through adrenosterone in M. albus but via 11β-hydroxytestosterone in R. sarba. When the plasma levels of androstenedione, testosterone, 11-oxotestosterone, 11β-hydroxytestosterone, estrone and 17β-estradiol among the male, intersexual and female phase of the same species were compared, available data showed that either there was no obvious difference among the different sexual phases or the differences could be accounted for by the seasonal reproductive activities of the animal. Except for androstenedione, there are no marked changes in plasma testosterone, 11-oxotestosterone, 11β-hydroxytestosterone, estrone and 17β-estradiol levels in the intersexual phase compared with the female and male, it is unlikely that these classical sex steroids act as a primary trigger of natural sex reversal in these fishes; the role of androstenedione awaits further elucidation. © 1989 Kugler Publications.en_US
dc.languageengen_US
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0920-1742en_US
dc.relation.ispartofFish Physiology and Biochemistryen_US
dc.subjectMonopterus Albusen_US
dc.subjectProtandryen_US
dc.subjectProtogynyen_US
dc.subjectRhabdosargus Sarbaen_US
dc.subjectSex Reversalen_US
dc.subjectSex Steroidsen_US
dc.subjectSteroidogenesisen_US
dc.titleSex steroids in intersexual fishesen_US
dc.typeArticleen_US
dc.identifier.emailYeung, WSB:wsbyeung@hkucc.hku.hken_US
dc.identifier.authorityYeung, WSB=rp00331en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/BF00004711en_US
dc.identifier.pmid24221776-
dc.identifier.scopuseid_2-s2.0-51249176970en_US
dc.identifier.volume7en_US
dc.identifier.issue1-6en_US
dc.identifier.spage229en_US
dc.identifier.epage235en_US
dc.identifier.isiWOS:A1989AF55800029-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridChan, STH=24368283200en_US
dc.identifier.scopusauthoridYeung, WSB=7102370745en_US

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