Physiological evidence for two sturgeon gonadotrophins in Acipenser transmontanus
Identifieur interne : 000498 ( PascalFrancis/Checkpoint ); précédent : 000497; suivant : 000499Physiological evidence for two sturgeon gonadotrophins in Acipenser transmontanus
Auteurs : G. P. Moberg [États-Unis] ; J. G. Watson ; S. Doroshov ; H. Papkoff ; R. J. Pavlick JrSource :
- Aquaculture [ 0044-8486 ] ; 1995.
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- Pascal (Inist)
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Abstract
Copyright (c) 1996 Elsevier Science B.V. All rights reserved. Physiological evidence in white sturgeon Acipenser transmontanus suggests that two gonadotrophins, termed sturgeon gonadotropin I (stGTH I) and sturgeon gonadotropin II (stGTH II), are involved in regulating reproduction. Pituitary and plasma concentrations of stGTH I were found to be higher than concentrations of stGTH II during vitellogenesis and the early stages of spermatogenesis. Conversely, pituitary and plasma concentrations of stGTH II were greater compared with stGTH I during ovulation and spermiation. The gonadotropin releasing hormone analog D-Ala6-des-Gly10-GnRH ethylamide (GnRHa) was effective in stimulating the release of both gonadotrophins in mature males and pre-ovulatory females, with a maximal response occurring in the spring. Collectively, the data supports our view that sturgeon possess a dual gonadotropin system controlling reproduction.
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Papkoff</name></author><author><name sortKey="Pavlick Jr, R J" sort="Pavlick Jr, R J" uniqKey="Pavlick Jr R" first="R. J." last="Pavlick Jr">R. J. Pavlick Jr</name></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">96-0076034</idno><date when="1995">1995</date><idno type="stanalyst">PASCAL 96-0076034 Elsevier</idno><idno type="RBID">Pascal:96-0076034</idno><idno type="wicri:Area/PascalFrancis/Corpus">000500</idno><idno type="wicri:Area/PascalFrancis/Curation">000611</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000498</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000498</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Physiological evidence for two sturgeon gonadotrophins in Acipenser transmontanus</title><author><name sortKey="Moberg, G P" sort="Moberg, G P" uniqKey="Moberg G" first="G. P." last="Moberg">G. P. 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Pavlick Jr</name></author></analytic><series><title level="j" type="main">Aquaculture</title><title level="j" type="abbreviated">Aquaculture</title><idno type="ISSN">0044-8486</idno><imprint><date when="1995">1995</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Aquaculture</title><title level="j" type="abbreviated">Aquaculture</title><idno type="ISSN">0044-8486</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acipenser transmontanus</term><term>Gonadotropin</term><term>Gonadotropin RH</term><term>Reproduction</term><term>Sex steroid hormone</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Gonadotrophine</term><term>Gonadotrophine RH</term><term>Hormone stéroïde sexuelle</term><term>Reproduction</term><term>Acipenser transmontanus</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Copyright (c) 1996 Elsevier Science B.V. All rights reserved. Physiological evidence in white sturgeon Acipenser transmontanus suggests that two gonadotrophins, termed sturgeon gonadotropin I (stGTH I) and sturgeon gonadotropin II (stGTH II), are involved in regulating reproduction. Pituitary and plasma concentrations of stGTH I were found to be higher than concentrations of stGTH II during vitellogenesis and the early stages of spermatogenesis. Conversely, pituitary and plasma concentrations of stGTH II were greater compared with stGTH I during ovulation and spermiation. The gonadotropin releasing hormone analog D-Ala<sup>6</sup>-des-Gly<sup>10</sup>-GnRH ethylamide (GnRHa) was effective in stimulating the release of both gonadotrophins in mature males and pre-ovulatory females, with a maximal response occurring in the spring. Collectively, the data supports our view that sturgeon possess a dual gonadotropin system controlling reproduction.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0044-8486</s0></fA01><fA02 i1="01"><s0>AQCLAL</s0></fA02><fA03 i2="1"><s0>Aquaculture</s0></fA03><fA05><s2>135</s2></fA05><fA06><s2>1-3</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Physiological evidence for two sturgeon gonadotrophins in Acipenser transmontanus</s1></fA08><fA11 i1="01" i2="1"><s1>MOBERG (G. P.)</s1></fA11><fA11 i1="02" i2="1"><s1>WATSON (J. G.)</s1></fA11><fA11 i1="03" i2="1"><s1>DOROSHOV (S.)</s1></fA11><fA11 i1="04" i2="1"><s1>PAPKOFF (H.)</s1></fA11><fA11 i1="05" i2="1"><s1>PAVLICK JR (R. 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Doroshov</name><name sortKey="Papkoff, H" sort="Papkoff, H" uniqKey="Papkoff H" first="H." last="Papkoff">H. Papkoff</name><name sortKey="Pavlick Jr, R J" sort="Pavlick Jr, R J" uniqKey="Pavlick Jr R" first="R. J." last="Pavlick Jr">R. J. Pavlick Jr</name><name sortKey="Watson, J G" sort="Watson, J G" uniqKey="Watson J" first="J. G." last="Watson">J. G. Watson</name></noCountry><country name="États-Unis"><region name="Californie"><name sortKey="Moberg, G P" sort="Moberg, G P" uniqKey="Moberg G" first="G. P." last="Moberg">G. P. Moberg</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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