Mechanisms of seawater acclimation in a primitive, anadromous fish, the green sturgeon.
Identifieur interne : 000411 ( PubMed/Checkpoint ); précédent : 000410; suivant : 000412Mechanisms of seawater acclimation in a primitive, anadromous fish, the green sturgeon.
Auteurs : Peter J. Allen [États-Unis] ; Joseph J. Cech ; Dietmar KültzSource :
- Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology [ 1432-136X ] ; 2009.
English descriptors
- KwdEn :
- Acclimatization (physiology), Aging (physiology), Analysis of Variance, Animals, Bicarbonates (analysis), Body Weight, Calcium (analysis), California, Carbon Dioxide (analysis), Cell Compartmentation, Cell Size, Fishes (growth & development), Fishes (physiology), Fresh Water, Gastrointestinal Contents (chemistry), Gills (cytology), Gills (enzymology), Hydrogen-Ion Concentration, Intestines (chemistry), Intestines (enzymology), Kidney (enzymology), Magnesium (analysis), Mitochondria, Salinity, Seawater, Sodium-Potassium-Exchanging ATPase (metabolism), Statistics, Nonparametric.
- MESH :
- chemical , analysis : Bicarbonates, Calcium, Carbon Dioxide, Magnesium.
- chemical , metabolism : Sodium-Potassium-Exchanging ATPase.
- geographic : California.
- chemistry : Gastrointestinal Contents, Intestines.
- cytology : Gills.
- enzymology : Gills, Intestines, Kidney.
- growth & development : Fishes.
- physiology : Acclimatization, Aging, Fishes.
- Analysis of Variance, Animals, Body Weight, Cell Compartmentation, Cell Size, Fresh Water, Hydrogen-Ion Concentration, Mitochondria, Salinity, Seawater, Statistics, Nonparametric.
Abstract
Relatively little is known about salinity acclimation in the primitive groups of fishes. To test whether physiological preparative changes occur and to investigate the mechanisms of salinity acclimation, anadromous green sturgeon, Acipenser medirostris (Chondrostei) of three different ages (100, 170, and 533 dph) were acclimated for 7 weeks to three different salinities (<3, 10, and 33 ppt). Gill, kidney, pyloric caeca, and spiral intestine tissues were assayed for Na(+), K(+)-ATPase activity; and gills were analyzed for mitochondria-rich cell (MRC) size, abundance, localization and Na(+), K(+)-ATPase content. Kidneys were analyzed for Na(+), K(+)-ATPase localization and the gastro-intestinal tract (GIT) was assessed for changes in ion and base content. Na(+), K(+)-ATPase activities increased in the gills and decreased in the kidneys with increasing salinity. Gill MRCs increased in size and decreased in relative abundance with fish size/age. Gill MRC Na(+), K(+)-ATPase content (e.g., ion-pumping capacity) was proportional to MRC size, indicating greater abilities to regulate ions with size/age. Developmental/ontogenetic changes were seen in the rapid increases in gill MRC size and lamellar length between 100 and 170 dph. Na(+), K(+)-ATPase activities increased fourfold in the pyloric caeca in 33 ppt, presumably due to increased salt and water absorption as indicated by GIT fluids, solids, and ion concentrations. In contrast to teleosts, a greater proportion of base (HCO(3) (-) and 2CO(3) (2-)) was found in intestinal precipitates than fluids. Green sturgeon osmo- and ionoregulate with similar mechanisms to more-derived teleosts, indicating the importance of these mechanisms during the evolution of fishes, although salinity acclimation may be more dependent on body size.
DOI: 10.1007/s00360-009-0372-2
PubMed: 19517116
Affiliations:
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Allen</name><affiliation wicri:level="1"><nlm:affiliation>Department of Wildlife, Fish, and Conservation Biology, University of California, 1 Shields Avenue, Davis, CA, 95616, USA. pallen@cfr.msstate.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Wildlife, Fish, and Conservation Biology, University of California, 1 Shields Avenue, Davis, CA, 95616</wicri:regionArea><wicri:noRegion>95616</wicri:noRegion></affiliation></author><author><name sortKey="Cech, Joseph J" sort="Cech, Joseph J" uniqKey="Cech J" first="Joseph J" last="Cech">Joseph J. Cech</name></author><author><name sortKey="Kultz, Dietmar" sort="Kultz, Dietmar" uniqKey="Kultz D" first="Dietmar" last="Kültz">Dietmar Kültz</name></author></analytic><series><title level="j">Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology</title><idno type="eISSN">1432-136X</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acclimatization (physiology)</term><term>Aging (physiology)</term><term>Analysis of Variance</term><term>Animals</term><term>Bicarbonates (analysis)</term><term>Body Weight</term><term>Calcium (analysis)</term><term>California</term><term>Carbon Dioxide (analysis)</term><term>Cell Compartmentation</term><term>Cell Size</term><term>Fishes (growth & development)</term><term>Fishes (physiology)</term><term>Fresh Water</term><term>Gastrointestinal Contents (chemistry)</term><term>Gills (cytology)</term><term>Gills (enzymology)</term><term>Hydrogen-Ion Concentration</term><term>Intestines (chemistry)</term><term>Intestines (enzymology)</term><term>Kidney (enzymology)</term><term>Magnesium (analysis)</term><term>Mitochondria</term><term>Salinity</term><term>Seawater</term><term>Sodium-Potassium-Exchanging ATPase (metabolism)</term><term>Statistics, Nonparametric</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Bicarbonates</term><term>Calcium</term><term>Carbon Dioxide</term><term>Magnesium</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Sodium-Potassium-Exchanging ATPase</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>California</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Gastrointestinal Contents</term><term>Intestines</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Gills</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Gills</term><term>Intestines</term><term>Kidney</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Acclimatization</term><term>Aging</term><term>Fishes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Analysis of Variance</term><term>Animals</term><term>Body Weight</term><term>Cell Compartmentation</term><term>Cell Size</term><term>Fresh Water</term><term>Hydrogen-Ion Concentration</term><term>Mitochondria</term><term>Salinity</term><term>Seawater</term><term>Statistics, Nonparametric</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Relatively little is known about salinity acclimation in the primitive groups of fishes. To test whether physiological preparative changes occur and to investigate the mechanisms of salinity acclimation, anadromous green sturgeon, Acipenser medirostris (Chondrostei) of three different ages (100, 170, and 533 dph) were acclimated for 7 weeks to three different salinities (<3, 10, and 33 ppt). Gill, kidney, pyloric caeca, and spiral intestine tissues were assayed for Na(+), K(+)-ATPase activity; and gills were analyzed for mitochondria-rich cell (MRC) size, abundance, localization and Na(+), K(+)-ATPase content. Kidneys were analyzed for Na(+), K(+)-ATPase localization and the gastro-intestinal tract (GIT) was assessed for changes in ion and base content. Na(+), K(+)-ATPase activities increased in the gills and decreased in the kidneys with increasing salinity. Gill MRCs increased in size and decreased in relative abundance with fish size/age. Gill MRC Na(+), K(+)-ATPase content (e.g., ion-pumping capacity) was proportional to MRC size, indicating greater abilities to regulate ions with size/age. Developmental/ontogenetic changes were seen in the rapid increases in gill MRC size and lamellar length between 100 and 170 dph. Na(+), K(+)-ATPase activities increased fourfold in the pyloric caeca in 33 ppt, presumably due to increased salt and water absorption as indicated by GIT fluids, solids, and ion concentrations. In contrast to teleosts, a greater proportion of base (HCO(3) (-) and 2CO(3) (2-)) was found in intestinal precipitates than fluids. Green sturgeon osmo- and ionoregulate with similar mechanisms to more-derived teleosts, indicating the importance of these mechanisms during the evolution of fishes, although salinity acclimation may be more dependent on body size.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19517116</PMID><DateCreated><Year>2009</Year><Month>09</Month><Day>17</Day></DateCreated><DateCompleted><Year>2009</Year><Month>10</Month><Day>30</Day></DateCompleted><DateRevised><Year>2014</Year><Month>12</Month><Day>07</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-136X</ISSN><JournalIssue CitedMedium="Internet"><Volume>179</Volume><Issue>7</Issue><PubDate><Year>2009</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology</Title><ISOAbbreviation>J. Comp. Physiol. B, Biochem. Syst. Environ. Physiol.</ISOAbbreviation></Journal><ArticleTitle>Mechanisms of seawater acclimation in a primitive, anadromous fish, the green sturgeon.</ArticleTitle><Pagination><MedlinePgn>903-20</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00360-009-0372-2</ELocationID><Abstract><AbstractText>Relatively little is known about salinity acclimation in the primitive groups of fishes. To test whether physiological preparative changes occur and to investigate the mechanisms of salinity acclimation, anadromous green sturgeon, Acipenser medirostris (Chondrostei) of three different ages (100, 170, and 533 dph) were acclimated for 7 weeks to three different salinities (<3, 10, and 33 ppt). Gill, kidney, pyloric caeca, and spiral intestine tissues were assayed for Na(+), K(+)-ATPase activity; and gills were analyzed for mitochondria-rich cell (MRC) size, abundance, localization and Na(+), K(+)-ATPase content. Kidneys were analyzed for Na(+), K(+)-ATPase localization and the gastro-intestinal tract (GIT) was assessed for changes in ion and base content. Na(+), K(+)-ATPase activities increased in the gills and decreased in the kidneys with increasing salinity. Gill MRCs increased in size and decreased in relative abundance with fish size/age. Gill MRC Na(+), K(+)-ATPase content (e.g., ion-pumping capacity) was proportional to MRC size, indicating greater abilities to regulate ions with size/age. Developmental/ontogenetic changes were seen in the rapid increases in gill MRC size and lamellar length between 100 and 170 dph. Na(+), K(+)-ATPase activities increased fourfold in the pyloric caeca in 33 ppt, presumably due to increased salt and water absorption as indicated by GIT fluids, solids, and ion concentrations. In contrast to teleosts, a greater proportion of base (HCO(3) (-) and 2CO(3) (2-)) was found in intestinal precipitates than fluids. Green sturgeon osmo- and ionoregulate with similar mechanisms to more-derived teleosts, indicating the importance of these mechanisms during the evolution of fishes, although salinity acclimation may be more dependent on body size.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Allen</LastName><ForeName>Peter J</ForeName><Initials>PJ</Initials><AffiliationInfo><Affiliation>Department of Wildlife, Fish, and Conservation Biology, University of California, 1 Shields Avenue, Davis, CA, 95616, USA. pallen@cfr.msstate.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cech</LastName><ForeName>Joseph J</ForeName><Initials>JJ</Initials><Suffix>Jr</Suffix></Author><Author ValidYN="Y"><LastName>Kültz</LastName><ForeName>Dietmar</ForeName><Initials>D</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, 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Apr;179(3):383-90</RefSource><PMID Version="1">19066909</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Fish Physiol Biochem. 2009 Jun;35(2):223-30</RefSource><PMID Version="1">19343518</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Am J Physiol Regul Integr Comp Physiol. 2000 Jul;279(1):R222-9</RefSource><PMID Version="1">10896885</PMID></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName UI="D000064" MajorTopicYN="N">Acclimatization</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000375" MajorTopicYN="N">Aging</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000704" MajorTopicYN="N">Analysis of Variance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000818" 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Size</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005399" MajorTopicYN="N">Fishes</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005618" MajorTopicYN="N">Fresh Water</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005766" MajorTopicYN="N">Gastrointestinal Contents</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005880" MajorTopicYN="N">Gills</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006863" MajorTopicYN="N">Hydrogen-Ion Concentration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007422" MajorTopicYN="N">Intestines</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007668" MajorTopicYN="N">Kidney</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008274" MajorTopicYN="N">Magnesium</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008928" MajorTopicYN="N">Mitochondria</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D054712" MajorTopicYN="N">Salinity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012623" MajorTopicYN="Y">Seawater</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000254" MajorTopicYN="N">Sodium-Potassium-Exchanging ATPase</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018709" MajorTopicYN="N">Statistics, Nonparametric</DescriptorName></MeshHeading></MeshHeadingList><OtherID Source="NLM">PMC2745624</OtherID></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2009</Year><Month>03</Month><Day>23</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2009</Year><Month>05</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2009</Year><Month>05</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>6</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>6</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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Cech</name><name sortKey="Kultz, Dietmar" sort="Kultz, Dietmar" uniqKey="Kultz D" first="Dietmar" last="Kültz">Dietmar Kültz</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Allen, Peter J" sort="Allen, Peter J" uniqKey="Allen P" first="Peter J" last="Allen">Peter J. Allen</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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|clé= pubmed:19517116
|texte= Mechanisms of seawater acclimation in a primitive, anadromous fish, the green sturgeon.
}}
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HfdIndexSelect -h $EXPLOR_AREA/Data/PubMed/Checkpoint/RBID.i -Sk "pubmed:19517116" \
| HfdSelect -Kh $EXPLOR_AREA/Data/PubMed/Checkpoint/biblio.hfd \
| NlmPubMed2Wicri -a EsturgeonV1
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