The hypothalamo-hypophysial system in acipenseridae
Identifieur interne : 001055 ( Istex/Corpus ); précédent : 001054; suivant : 001056The hypothalamo-hypophysial system in acipenseridae
Auteurs : A. L. Polenov ; M. PavloviSource :
- Cell and Tissue Research [ 0302-766X ] ; 1978-01-01.
Abstract
Summary: The peptidergic neurosecretory cells (NSC) of the nucleus praeopticus (NP) of male and female sturgeons, A. güldenstädti Brandt, were studied light microscopically at different stages of their life cycle and under experimental conditions. Four main NSC types reflecting different phases of secretory cycle and life course of the cell have been tentatively distinguished. The maximum percentage of the high and moderate active NSC are found in juvenile animals in the sea (stages I and I–II of gonadal maturity, sgm), in upstream migrating fish in spring before spawning, in down-stream migrating fish 1–1.5 months after spawning, and in experimental fish kept for 8.5 hours in a 32‰ sodium chloride solution. The least active NSC accumulating neurosecretory material (NSM) are characteristic of juvenile fish (sgm II) in the sea, sturgeons maintained in a sodium chloride solution for 3.5 or 6 hours and fish which remained in a net, thrown to the sea, for some hours before fixation. The lowest percentage of these cells is observed in autumn migrants, in females soon after spawning (sgm VI) and in fish kept for 8.5 hours in a sodium chloride solution. Cells rich in basophilic substance and poor in NSM occur in juvenile and in down-stream migrating fish. Cells reflecting the state of exhaustion after hyperactivity and “ageing” cells are seen in adults, especially in sgm VI fish, and in autumn migrants. Pyknomorphous NSC are constantly present in all fish; they are most numerous in sturgeons found in a net. A diagram demonstrating the life course and the secretory cycle of the NSC is presented and the role of the hypothalamo-hypophysial neurosecretory system (HHNS) under stress conditions is discussed.
Url:
DOI: 10.1007/BF00224944
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ISTEX:025493D6D857A681B6E1B5EAE584092B8EBCEEB5Le document en format XML
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Pavlovi</name><affiliation><mods:affiliation>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</mods:affiliation></affiliation><affiliation><mods:affiliation>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:025493D6D857A681B6E1B5EAE584092B8EBCEEB5</idno><date when="1978" year="1978">1978</date><idno type="doi">10.1007/BF00224944</idno><idno type="url">https://api.istex.fr/document/025493D6D857A681B6E1B5EAE584092B8EBCEEB5/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001055</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001055</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">The hypothalamo-hypophysial system in acipenseridae</title><author><name sortKey="Polenov, A L" sort="Polenov, A L" uniqKey="Polenov A" first="A. L." last="Polenov">A. L. Polenov</name><affiliation><mods:affiliation>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</mods:affiliation></affiliation><affiliation><mods:affiliation>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</mods:affiliation></affiliation></author><author><name sortKey="Pavlovi, M" sort="Pavlovi, M" uniqKey="Pavlovi M" first="M." last="Pavlovi">M. Pavlovi</name><affiliation><mods:affiliation>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</mods:affiliation></affiliation><affiliation><mods:affiliation>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Cell and Tissue Research</title><title level="j" type="abbrev">Cell Tissue Res.</title><idno type="ISSN">0302-766X</idno><idno type="eISSN">1432-0878</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><date type="published" when="1978-01-01">1978-01-01</date><biblScope unit="volume">186</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="559">559</biblScope><biblScope unit="page" to="570">570</biblScope></imprint><idno type="ISSN">0302-766X</idno></series><idno type="istex">025493D6D857A681B6E1B5EAE584092B8EBCEEB5</idno><idno type="DOI">10.1007/BF00224944</idno><idno type="ArticleID">BF00224944</idno><idno type="ArticleID">Art17</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0302-766X</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Summary: The peptidergic neurosecretory cells (NSC) of the nucleus praeopticus (NP) of male and female sturgeons, A. güldenstädti Brandt, were studied light microscopically at different stages of their life cycle and under experimental conditions. Four main NSC types reflecting different phases of secretory cycle and life course of the cell have been tentatively distinguished. The maximum percentage of the high and moderate active NSC are found in juvenile animals in the sea (stages I and I–II of gonadal maturity, sgm), in upstream migrating fish in spring before spawning, in down-stream migrating fish 1–1.5 months after spawning, and in experimental fish kept for 8.5 hours in a 32‰ sodium chloride solution. The least active NSC accumulating neurosecretory material (NSM) are characteristic of juvenile fish (sgm II) in the sea, sturgeons maintained in a sodium chloride solution for 3.5 or 6 hours and fish which remained in a net, thrown to the sea, for some hours before fixation. The lowest percentage of these cells is observed in autumn migrants, in females soon after spawning (sgm VI) and in fish kept for 8.5 hours in a sodium chloride solution. Cells rich in basophilic substance and poor in NSM occur in juvenile and in down-stream migrating fish. Cells reflecting the state of exhaustion after hyperactivity and “ageing” cells are seen in adults, especially in sgm VI fish, and in autumn migrants. Pyknomorphous NSC are constantly present in all fish; they are most numerous in sturgeons found in a net. A diagram demonstrating the life course and the secretory cycle of the NSC is presented and the role of the hypothalamo-hypophysial neurosecretory system (HHNS) under stress conditions is discussed.</div></front></TEI><istex><corpusName>springer</corpusName><author><json:item><name>Prof. Dr. A. L. 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Pavlović</name><affiliations><json:string>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</json:string><json:string>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</json:string></affiliations></json:item></author><articleId><json:string>BF00224944</json:string><json:string>Art17</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>OriginalPaper</json:string></originalGenre><abstract>Summary: The peptidergic neurosecretory cells (NSC) of the nucleus praeopticus (NP) of male and female sturgeons, A. güldenstädti Brandt, were studied light microscopically at different stages of their life cycle and under experimental conditions. Four main NSC types reflecting different phases of secretory cycle and life course of the cell have been tentatively distinguished. The maximum percentage of the high and moderate active NSC are found in juvenile animals in the sea (stages I and I–II of gonadal maturity, sgm), in upstream migrating fish in spring before spawning, in down-stream migrating fish 1–1.5 months after spawning, and in experimental fish kept for 8.5 hours in a 32‰ sodium chloride solution. The least active NSC accumulating neurosecretory material (NSM) are characteristic of juvenile fish (sgm II) in the sea, sturgeons maintained in a sodium chloride solution for 3.5 or 6 hours and fish which remained in a net, thrown to the sea, for some hours before fixation. The lowest percentage of these cells is observed in autumn migrants, in females soon after spawning (sgm VI) and in fish kept for 8.5 hours in a sodium chloride solution. Cells rich in basophilic substance and poor in NSM occur in juvenile and in down-stream migrating fish. Cells reflecting the state of exhaustion after hyperactivity and “ageing” cells are seen in adults, especially in sgm VI fish, and in autumn migrants. Pyknomorphous NSC are constantly present in all fish; they are most numerous in sturgeons found in a net. 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The functional morphology of the peptidergic neurosecretory cells in the preoptic nucleus of the sturgeon, acipenser güldenstädti brandt a quantitative study</title><respStmt><resp>Références bibliographiques récupérées via GROBID</resp><name resp="ISTEX-API">ISTEX-API (INIST-CNRS)</name></respStmt><respStmt><resp>Références bibliographiques récupérées via GROBID</resp><name resp="ISTEX-API">ISTEX-API (INIST-CNRS)</name></respStmt></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><availability><p>Springer-Verlag, 1978</p></availability><date>1978</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">The hypothalamo-hypophysial system in acipenseridae</title><title level="a" type="sub" xml:lang="en">VII. The functional morphology of the peptidergic neurosecretory cells in the preoptic nucleus of the sturgeon, acipenser güldenstädti brandt a quantitative study</title><author xml:id="author-1" corresp="yes"><persName><forename type="first">A.</forename><surname>Polenov</surname></persName><roleName type="degree">Prof. Dr.</roleName><affiliation>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</affiliation><affiliation>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</affiliation></author><author xml:id="author-2"><persName><forename type="first">M.</forename><surname>Pavlović</surname></persName><affiliation>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</affiliation><affiliation>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</affiliation></author></analytic><monogr><title level="j">Cell and Tissue Research</title><title level="j" type="abbrev">Cell Tissue Res.</title><idno type="journal-ID">441</idno><idno type="pISSN">0302-766X</idno><idno type="eISSN">1432-0878</idno><idno type="issue-article-count">17</idno><idno type="volume-issue-count">3</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><date type="published" when="1978-01-01"></date><biblScope unit="volume">186</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="559">559</biblScope><biblScope unit="page" to="570">570</biblScope></imprint></monogr><idno type="istex">025493D6D857A681B6E1B5EAE584092B8EBCEEB5</idno><idno type="DOI">10.1007/BF00224944</idno><idno type="ArticleID">BF00224944</idno><idno type="ArticleID">Art17</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1978</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Summary: The peptidergic neurosecretory cells (NSC) of the nucleus praeopticus (NP) of male and female sturgeons, A. güldenstädti Brandt, were studied light microscopically at different stages of their life cycle and under experimental conditions. Four main NSC types reflecting different phases of secretory cycle and life course of the cell have been tentatively distinguished. The maximum percentage of the high and moderate active NSC are found in juvenile animals in the sea (stages I and I–II of gonadal maturity, sgm), in upstream migrating fish in spring before spawning, in down-stream migrating fish 1–1.5 months after spawning, and in experimental fish kept for 8.5 hours in a 32‰ sodium chloride solution. The least active NSC accumulating neurosecretory material (NSM) are characteristic of juvenile fish (sgm II) in the sea, sturgeons maintained in a sodium chloride solution for 3.5 or 6 hours and fish which remained in a net, thrown to the sea, for some hours before fixation. The lowest percentage of these cells is observed in autumn migrants, in females soon after spawning (sgm VI) and in fish kept for 8.5 hours in a sodium chloride solution. Cells rich in basophilic substance and poor in NSM occur in juvenile and in down-stream migrating fish. Cells reflecting the state of exhaustion after hyperactivity and “ageing” cells are seen in adults, especially in sgm VI fish, and in autumn migrants. Pyknomorphous NSC are constantly present in all fish; they are most numerous in sturgeons found in a net. A diagram demonstrating the life course and the secretory cycle of the NSC is presented and the role of the hypothalamo-hypophysial neurosecretory system (HHNS) under stress conditions is discussed.</p></abstract><textClass><keywords scheme="Journal Subject"><list><head>Biomedicine</head><item><term>Neurosciences</term></item><item><term>Endocrinology</term></item><item><term>Neurology</term></item><item><term>Cell Biology</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1978-01-01">Published</change><change xml:id="refBibs-istex" who="#ISTEX-API" when="2016-11-22">References added</change><change xml:id="refBibs-istex" who="#ISTEX-API" when="2017-01-20">References added</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/025493D6D857A681B6E1B5EAE584092B8EBCEEB5/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Springer, Publisher found" wicri:toSee="no header"><istex:xmlDeclaration>version="1.0" encoding="UTF-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//Springer-Verlag//DTD A++ V2.4//EN" URI="http://devel.springer.de/A++/V2.4/DTD/A++V2.4.dtd" name="istex:docType"></istex:docType><istex:document><Publisher><PublisherInfo><PublisherName>Springer-Verlag</PublisherName><PublisherLocation>Berlin/Heidelberg</PublisherLocation></PublisherInfo><Journal><JournalInfo JournalProductType="ArchiveJournal" NumberingStyle="Unnumbered"><JournalID>441</JournalID><JournalPrintISSN>0302-766X</JournalPrintISSN><JournalElectronicISSN>1432-0878</JournalElectronicISSN><JournalTitle>Cell and Tissue Research</JournalTitle><JournalAbbreviatedTitle>Cell Tissue Res.</JournalAbbreviatedTitle><JournalSubjectGroup><JournalSubject Type="Primary">Biomedicine</JournalSubject><JournalSubject Type="Secondary">Neurosciences</JournalSubject><JournalSubject Type="Secondary">Endocrinology</JournalSubject><JournalSubject Type="Secondary">Neurology</JournalSubject><JournalSubject Type="Secondary">Cell Biology</JournalSubject></JournalSubjectGroup></JournalInfo><Volume><VolumeInfo VolumeType="Regular" TocLevels="0"><VolumeIDStart>186</VolumeIDStart><VolumeIDEnd>186</VolumeIDEnd><VolumeIssueCount>3</VolumeIssueCount></VolumeInfo><Issue IssueType="Regular"><IssueInfo TocLevels="0"><IssueIDStart>3</IssueIDStart><IssueIDEnd>3</IssueIDEnd><IssueArticleCount>17</IssueArticleCount><IssueHistory><CoverDate><Year>1978</Year><Month>1</Month></CoverDate></IssueHistory><IssueCopyright><CopyrightHolderName>Springer-Verlag</CopyrightHolderName><CopyrightYear>1978</CopyrightYear></IssueCopyright></IssueInfo><Article ID="Art17"><ArticleInfo Language="En" ArticleType="OriginalPaper" NumberingStyle="Unnumbered" TocLevels="0" ContainsESM="No"><ArticleID>BF00224944</ArticleID><ArticleDOI>10.1007/BF00224944</ArticleDOI><ArticleSequenceNumber>17</ArticleSequenceNumber><ArticleTitle Language="En">The hypothalamo-hypophysial system in acipenseridae</ArticleTitle><ArticleSubTitle Language="En">VII. The functional morphology of the peptidergic neurosecretory cells in the preoptic nucleus of the sturgeon, acipenser güldenstädti brandt a quantitative study</ArticleSubTitle><ArticleFirstPage>559</ArticleFirstPage><ArticleLastPage>570</ArticleLastPage><ArticleHistory><RegistrationDate><Year>2004</Year><Month>7</Month><Day>22</Day></RegistrationDate><Accepted><Year>1977</Year><Month>8</Month><Day>17</Day></Accepted></ArticleHistory><ArticleCopyright><CopyrightHolderName>Springer-Verlag</CopyrightHolderName><CopyrightYear>1978</CopyrightYear></ArticleCopyright><ArticleGrants Type="Regular"><MetadataGrant Grant="OpenAccess"></MetadataGrant><AbstractGrant Grant="OpenAccess"></AbstractGrant><BodyPDFGrant Grant="Restricted"></BodyPDFGrant><BodyHTMLGrant Grant="Restricted"></BodyHTMLGrant><BibliographyGrant Grant="Restricted"></BibliographyGrant><ESMGrant Grant="Restricted"></ESMGrant></ArticleGrants><ArticleContext><JournalID>441</JournalID><VolumeIDStart>186</VolumeIDStart><VolumeIDEnd>186</VolumeIDEnd><IssueIDStart>3</IssueIDStart><IssueIDEnd>3</IssueIDEnd></ArticleContext></ArticleInfo><ArticleHeader><AuthorGroup><Author AffiliationIDS="Aff1 Aff2" CorrespondingAffiliationID="Aff3"><AuthorName DisplayOrder="Western"><Prefix>Prof. Dr.</Prefix><GivenName>A.</GivenName><GivenName>L.</GivenName><FamilyName>Polenov</FamilyName></AuthorName></Author><Author AffiliationIDS="Aff1 Aff2"><AuthorName DisplayOrder="Western"><GivenName>M.</GivenName><FamilyName>Pavlović</FamilyName></AuthorName></Author><Affiliation ID="Aff1"><OrgName>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR</OrgName><OrgAddress><Country>U.S.S.R.</Country></OrgAddress></Affiliation><Affiliation ID="Aff2"><OrgName>Laboratory of Cytology, Institute of Biological Research</OrgName><OrgAddress><City>Belgrade</City><Country>Yugoslavia</Country></OrgAddress></Affiliation><Affiliation ID="Aff3"><OrgName>Sechenov Institute</OrgName><OrgAddress><Postcode>K-223</Postcode><City>Leningrad</City><Country>USSR</Country></OrgAddress></Affiliation></AuthorGroup><Abstract ID="Abs1" Language="En"><Heading>Summary</Heading><Para>The peptidergic neurosecretory cells (NSC) of the nucleus praeopticus (NP) of male and female sturgeons, A. güldenstädti Brandt, were studied light microscopically at different stages of their life cycle and under experimental conditions. Four main NSC types reflecting different phases of secretory cycle and life course of the cell have been tentatively distinguished.</Para><Para>The maximum percentage of the high and moderate active NSC are found in juvenile animals in the sea (stages I and I–II of gonadal maturity, sgm), in upstream migrating fish in spring before spawning, in down-stream migrating fish 1–1.5 months after spawning, and in experimental fish kept for 8.5 hours in a 32‰ sodium chloride solution. The least active NSC accumulating neurosecretory material (NSM) are characteristic of juvenile fish (sgm II) in the sea, sturgeons maintained in a sodium chloride solution for 3.5 or 6 hours and fish which remained in a net, thrown to the sea, for some hours before fixation. The lowest percentage of these cells is observed in autumn migrants, in females soon after spawning (sgm VI) and in fish kept for 8.5 hours in a sodium chloride solution. Cells rich in basophilic substance and poor in NSM occur in juvenile and in down-stream migrating fish. Cells reflecting the state of exhaustion after hyperactivity and “ageing” cells are seen in adults, especially in sgm VI fish, and in autumn migrants. Pyknomorphous NSC are constantly present in all fish; they are most numerous in sturgeons found in a net. A diagram demonstrating the life course and the secretory cycle of the NSC is presented and the role of the hypothalamo-hypophysial neurosecretory system (HHNS) under stress conditions is discussed.</Para></Abstract><KeywordGroup Language="En"><Heading>Key words</Heading><Keyword>Nucleus praeopticus</Keyword><Keyword>Neurosecretion</Keyword><Keyword>Acipenseridae</Keyword><Keyword>Quantitative study</Keyword></KeywordGroup><ArticleNote Type="Misc"><SimplePara>The authors are grateful to Dr. V.Z. Trusov, M.Sc. (Biol.), for supplying a portion of the sea sturgeons and to P.E. Garlov, M.Sc. (Biol.), for his valuable help during the experiments</SimplePara></ArticleNote></ArticleHeader><NoBody></NoBody></Article></Issue></Volume></Journal></Publisher></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>The hypothalamo-hypophysial system in acipenseridae</title><subTitle>VII. The functional morphology of the peptidergic neurosecretory cells in the preoptic nucleus of the sturgeon, acipenser güldenstädti brandt a quantitative study</subTitle></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>The hypothalamo-hypophysial system in acipenseridae</title><subTitle>VII. The functional morphology of the peptidergic neurosecretory cells in the preoptic nucleus of the sturgeon, acipenser güldenstädti brandt a quantitative study</subTitle></titleInfo><name type="personal" displayLabel="corresp"><namePart type="termsOfAddress">Prof. Dr.</namePart><namePart type="given">A.</namePart><namePart type="given">L.</namePart><namePart type="family">Polenov</namePart><affiliation>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</affiliation><affiliation>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Pavlović</namePart><affiliation>Laboratory of Neuroendocrinology, Sechenov Institute of Evolutionary Physiology and Biochemistry of the Academy of Sciences of the USSR, U.S.S.R.</affiliation><affiliation>Laboratory of Cytology, Institute of Biological Research, Belgrade, Yugoslavia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="OriginalPaper"></genre><originInfo><publisher>Springer-Verlag</publisher><place><placeTerm type="text">Berlin/Heidelberg</placeTerm></place><dateIssued encoding="w3cdtf">1978-01-01</dateIssued><copyrightDate encoding="w3cdtf">1978</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Summary: The peptidergic neurosecretory cells (NSC) of the nucleus praeopticus (NP) of male and female sturgeons, A. güldenstädti Brandt, were studied light microscopically at different stages of their life cycle and under experimental conditions. Four main NSC types reflecting different phases of secretory cycle and life course of the cell have been tentatively distinguished. The maximum percentage of the high and moderate active NSC are found in juvenile animals in the sea (stages I and I–II of gonadal maturity, sgm), in upstream migrating fish in spring before spawning, in down-stream migrating fish 1–1.5 months after spawning, and in experimental fish kept for 8.5 hours in a 32‰ sodium chloride solution. The least active NSC accumulating neurosecretory material (NSM) are characteristic of juvenile fish (sgm II) in the sea, sturgeons maintained in a sodium chloride solution for 3.5 or 6 hours and fish which remained in a net, thrown to the sea, for some hours before fixation. The lowest percentage of these cells is observed in autumn migrants, in females soon after spawning (sgm VI) and in fish kept for 8.5 hours in a sodium chloride solution. Cells rich in basophilic substance and poor in NSM occur in juvenile and in down-stream migrating fish. Cells reflecting the state of exhaustion after hyperactivity and “ageing” cells are seen in adults, especially in sgm VI fish, and in autumn migrants. Pyknomorphous NSC are constantly present in all fish; they are most numerous in sturgeons found in a net. A diagram demonstrating the life course and the secretory cycle of the NSC is presented and the role of the hypothalamo-hypophysial neurosecretory system (HHNS) under stress conditions is discussed.</abstract><relatedItem type="host"><titleInfo><title>Cell and Tissue Research</title></titleInfo><titleInfo type="abbreviated"><title>Cell Tissue Res.</title></titleInfo><genre type="journal" displayLabel="Archive Journal"></genre><originInfo><dateIssued encoding="w3cdtf">1978-01-01</dateIssued><copyrightDate encoding="w3cdtf">1978</copyrightDate></originInfo><subject><genre>Biomedicine</genre><topic>Neurosciences</topic><topic>Endocrinology</topic><topic>Neurology</topic><topic>Cell Biology</topic></subject><identifier type="ISSN">0302-766X</identifier><identifier type="eISSN">1432-0878</identifier><identifier type="JournalID">441</identifier><identifier type="IssueArticleCount">17</identifier><identifier type="VolumeIssueCount">3</identifier><part><date>1978</date><detail type="volume"><number>186</number><caption>vol.</caption></detail><detail type="issue"><number>3</number><caption>no.</caption></detail><extent unit="pages"><start>559</start><end>570</end></extent></part><recordInfo><recordOrigin>Springer-Verlag, 1978</recordOrigin></recordInfo></relatedItem><identifier type="istex">025493D6D857A681B6E1B5EAE584092B8EBCEEB5</identifier><identifier type="DOI">10.1007/BF00224944</identifier><identifier type="ArticleID">BF00224944</identifier><identifier type="ArticleID">Art17</identifier><accessCondition type="use and reproduction" contentType="copyright">Springer-Verlag, 1978</accessCondition><recordInfo><recordContentSource>SPRINGER</recordContentSource><recordOrigin>Springer-Verlag, 1978</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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