Adaptive branchial mechanisms in the sturgeon Acipenser naccarii during acclimation to saltwater.
Identifieur interne : 000151 ( Ncbi/Merge ); précédent : 000150; suivant : 000152Adaptive branchial mechanisms in the sturgeon Acipenser naccarii during acclimation to saltwater.
Auteurs : Rosa M. Martínez-Alvarez [Espagne] ; Ana Sanz ; Manuel García-Gallego ; Alberto Domezain ; Julio Domezain ; Ram N Carmona ; M. Del Valle Ostos-Garrido ; Amalia E. MoralesSource :
- Comparative biochemistry and physiology. Part A, Molecular & integrative physiology [ 1095-6433 ] ; 2005.
English descriptors
- KwdEn :
- Acclimatization (physiology), Animals, Fatty Acids (metabolism), Fishes (blood), Fishes (physiology), Fresh Water, Gills (physiology), Gills (ultrastructure), Microscopy, Electron, Transmission, Osmolar Concentration, Seawater, Sodium-Potassium-Exchanging ATPase (physiology), Water-Electrolyte Balance (physiology).
- MESH :
- chemical , metabolism : Fatty Acids.
- blood : Fishes.
- physiology : Acclimatization, Fishes, Gills, Sodium-Potassium-Exchanging ATPase, Water-Electrolyte Balance.
- ultrastructure : Gills.
- Animals, Fresh Water, Microscopy, Electron, Transmission, Osmolar Concentration, Seawater.
Abstract
Variations of Na(+)/K(+)-ATPase activity and fatty-acid composition in the gills of the sturgeon Acipenser naccarii subjected to progressive acclimation to full seawater (35 ppt) were determined in relation to the hypo-osmoregulatory capacity of this species in the hyperosmotic medium. Blood samples were taken and gills arches were removed at intermediate salinity levels between 0 and 35 ppt and after 20 days at constant salinity (35 ppt). Plasma osmolality and Na(+)/K(+)-ATPase activity increased significantly with growing environmental salinity. Total saturated fatty acids (SFAs) decreased, while total polyunsaturated fatty acids (PUFAs) increased significantly with increasing salinity due mainly to changes in n-3 PUFAs (20:5n-3 and 22:6n-3). The n-3/n-6 ratio increased significantly during the acclimation process. The results show a direct relationship between salinity, increased gill Na(+)/K(+)-ATPase activity and ultrastructural changes of the gill chloride cells. Changes in the fatty-acid composition in gills of A. naccarii during progressive acclimation to full seawater suggest that variations of gill fatty acids may also have a role in osmoregulatory mechanisms.
DOI: 10.1016/j.cbpb.2005.05.003
PubMed: 15955717
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Martínez-Alvarez</name><affiliation wicri:level="4"><nlm:affiliation>Dpt. de Biología Animal y Ecología, Facultad de Ciencias, Universidad de Granada, Spain.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Dpt. de Biología Animal y Ecología, Facultad de Ciencias, Universidad de Granada</wicri:regionArea><placeName><settlement type="city">Grenade (Espagne)</settlement><region nuts="2" type="region">Andalousie</region></placeName><orgName type="university">Université de Grenade</orgName></affiliation></author><author><name sortKey="Sanz, Ana" sort="Sanz, Ana" uniqKey="Sanz A" first="Ana" last="Sanz">Ana Sanz</name></author><author><name sortKey="Garcia Gallego, Manuel" sort="Garcia Gallego, Manuel" uniqKey="Garcia Gallego M" first="Manuel" last="García-Gallego">Manuel García-Gallego</name></author><author><name sortKey="Domezain, Alberto" sort="Domezain, Alberto" uniqKey="Domezain A" first="Alberto" last="Domezain">Alberto Domezain</name></author><author><name sortKey="Domezain, Julio" sort="Domezain, Julio" uniqKey="Domezain J" first="Julio" last="Domezain">Julio Domezain</name></author><author><name sortKey="Carmona, Ram N" sort="Carmona, Ram N" uniqKey="Carmona R" first="Ram N" last="Carmona">Ram N Carmona</name></author><author><name sortKey="Del Valle Ostos Garrido, M" sort="Del Valle Ostos Garrido, M" uniqKey="Del Valle Ostos Garrido M" first="M" last="Del Valle Ostos-Garrido">M. Del Valle Ostos-Garrido</name></author><author><name sortKey="Morales, Amalia E" sort="Morales, Amalia E" uniqKey="Morales A" first="Amalia E" last="Morales">Amalia E. Morales</name></author></analytic><series><title level="j">Comparative biochemistry and physiology. Part A, Molecular & integrative physiology</title><idno type="ISSN">1095-6433</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acclimatization (physiology)</term><term>Animals</term><term>Fatty Acids (metabolism)</term><term>Fishes (blood)</term><term>Fishes (physiology)</term><term>Fresh Water</term><term>Gills (physiology)</term><term>Gills (ultrastructure)</term><term>Microscopy, Electron, Transmission</term><term>Osmolar Concentration</term><term>Seawater</term><term>Sodium-Potassium-Exchanging ATPase (physiology)</term><term>Water-Electrolyte Balance (physiology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Fatty Acids</term></keywords><keywords scheme="MESH" qualifier="blood" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Acclimatization</term><term>Fishes</term><term>Gills</term><term>Sodium-Potassium-Exchanging ATPase</term><term>Water-Electrolyte Balance</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Gills</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Fresh Water</term><term>Microscopy, Electron, Transmission</term><term>Osmolar Concentration</term><term>Seawater</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Variations of Na(+)/K(+)-ATPase activity and fatty-acid composition in the gills of the sturgeon Acipenser naccarii subjected to progressive acclimation to full seawater (35 ppt) were determined in relation to the hypo-osmoregulatory capacity of this species in the hyperosmotic medium. Blood samples were taken and gills arches were removed at intermediate salinity levels between 0 and 35 ppt and after 20 days at constant salinity (35 ppt). Plasma osmolality and Na(+)/K(+)-ATPase activity increased significantly with growing environmental salinity. Total saturated fatty acids (SFAs) decreased, while total polyunsaturated fatty acids (PUFAs) increased significantly with increasing salinity due mainly to changes in n-3 PUFAs (20:5n-3 and 22:6n-3). The n-3/n-6 ratio increased significantly during the acclimation process. The results show a direct relationship between salinity, increased gill Na(+)/K(+)-ATPase activity and ultrastructural changes of the gill chloride cells. Changes in the fatty-acid composition in gills of A. naccarii during progressive acclimation to full seawater suggest that variations of gill fatty acids may also have a role in osmoregulatory mechanisms.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15955717</PMID><DateCreated><Year>2005</Year><Month>07</Month><Day>18</Day></DateCreated><DateCompleted><Year>2005</Year><Month>09</Month><Day>22</Day></DateCompleted><DateRevised><Year>2007</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1095-6433</ISSN><JournalIssue CitedMedium="Print"><Volume>141</Volume><Issue>2</Issue><PubDate><Year>2005</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Comparative biochemistry and physiology. Part A, Molecular & integrative physiology</Title><ISOAbbreviation>Comp. Biochem. Physiol., Part A Mol. Integr. Physiol.</ISOAbbreviation></Journal><ArticleTitle>Adaptive branchial mechanisms in the sturgeon Acipenser naccarii during acclimation to saltwater.</ArticleTitle><Pagination><MedlinePgn>183-90</MedlinePgn></Pagination><Abstract><AbstractText>Variations of Na(+)/K(+)-ATPase activity and fatty-acid composition in the gills of the sturgeon Acipenser naccarii subjected to progressive acclimation to full seawater (35 ppt) were determined in relation to the hypo-osmoregulatory capacity of this species in the hyperosmotic medium. Blood samples were taken and gills arches were removed at intermediate salinity levels between 0 and 35 ppt and after 20 days at constant salinity (35 ppt). Plasma osmolality and Na(+)/K(+)-ATPase activity increased significantly with growing environmental salinity. Total saturated fatty acids (SFAs) decreased, while total polyunsaturated fatty acids (PUFAs) increased significantly with increasing salinity due mainly to changes in n-3 PUFAs (20:5n-3 and 22:6n-3). The n-3/n-6 ratio increased significantly during the acclimation process. The results show a direct relationship between salinity, increased gill Na(+)/K(+)-ATPase activity and ultrastructural changes of the gill chloride cells. Changes in the fatty-acid composition in gills of A. naccarii during progressive acclimation to full seawater suggest that variations of gill fatty acids may also have a role in osmoregulatory mechanisms.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Martínez-Alvarez</LastName><ForeName>Rosa M</ForeName><Initials>RM</Initials><AffiliationInfo><Affiliation>Dpt. de Biología Animal y Ecología, Facultad de Ciencias, Universidad de Granada, Spain.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sanz</LastName><ForeName>Ana</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>García-Gallego</LastName><ForeName>Manuel</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Domezain</LastName><ForeName>Alberto</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Domezain</LastName><ForeName>Julio</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Carmona</LastName><ForeName>Ramón</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>del Valle Ostos-Garrido</LastName><ForeName>M</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Morales</LastName><ForeName>Amalia E</ForeName><Initials>AE</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Comp Biochem Physiol A Mol Integr Physiol</MedlineTA><NlmUniqueID>9806096</NlmUniqueID><ISSNLinking>1095-6433</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005227">Fatty Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 3.6.3.9</RegistryNumber><NameOfSubstance UI="D000254">Sodium-Potassium-Exchanging ATPase</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000064" MajorTopicYN="N">Acclimatization</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005227" MajorTopicYN="N">Fatty Acids</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005399" MajorTopicYN="N">Fishes</DescriptorName><QualifierName UI="Q000097" MajorTopicYN="N">blood</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005618" MajorTopicYN="N">Fresh Water</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005880" 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PubStatus="received"><Year>2004</Year><Month>07</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2005</Year><Month>05</Month><Day>05</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2005</Year><Month>05</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>6</Month><Day>16</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>9</Month><Day>24</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>6</Month><Day>16</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15955717</ArticleId><ArticleId IdType="pii">S1095-6433(05)00107-8</ArticleId><ArticleId IdType="doi">10.1016/j.cbpb.2005.05.003</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li></country><region><li>Andalousie</li></region><settlement><li>Grenade (Espagne)</li></settlement><orgName><li>Université de Grenade</li></orgName></list><tree><noCountry><name sortKey="Carmona, Ram N" sort="Carmona, Ram N" uniqKey="Carmona R" first="Ram N" last="Carmona">Ram N Carmona</name><name sortKey="Del Valle Ostos Garrido, M" sort="Del Valle Ostos Garrido, M" uniqKey="Del Valle Ostos Garrido M" first="M" last="Del Valle Ostos-Garrido">M. Del Valle Ostos-Garrido</name><name sortKey="Domezain, Alberto" sort="Domezain, Alberto" uniqKey="Domezain A" first="Alberto" last="Domezain">Alberto Domezain</name><name sortKey="Domezain, Julio" sort="Domezain, Julio" uniqKey="Domezain J" first="Julio" last="Domezain">Julio Domezain</name><name sortKey="Garcia Gallego, Manuel" sort="Garcia Gallego, Manuel" uniqKey="Garcia Gallego M" first="Manuel" last="García-Gallego">Manuel García-Gallego</name><name sortKey="Morales, Amalia E" sort="Morales, Amalia E" uniqKey="Morales A" first="Amalia E" last="Morales">Amalia E. Morales</name><name sortKey="Sanz, Ana" sort="Sanz, Ana" uniqKey="Sanz A" first="Ana" last="Sanz">Ana Sanz</name></noCountry><country name="Espagne"><region name="Andalousie"><name sortKey="Martinez Alvarez, Rosa M" sort="Martinez Alvarez, Rosa M" uniqKey="Martinez Alvarez R" first="Rosa M" last="Martínez-Alvarez">Rosa M. 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