Insoluble detoxification of trace metals in a marine copepod Tigriopus brevicornis (Müller) exposed to copper, zinc, nickel, cadmium, silver and mercury.
Identifieur interne : 000111 ( PubMed/Checkpoint ); précédent : 000110; suivant : 000112Insoluble detoxification of trace metals in a marine copepod Tigriopus brevicornis (Müller) exposed to copper, zinc, nickel, cadmium, silver and mercury.
Auteurs : Sabria Barka [Tunisie]Source :
- Ecotoxicology (London, England) [ 0963-9292 ] ; 2007.
English descriptors
- KwdEn :
- Animals, Copepoda (drug effects), Copepoda (metabolism), Copepoda (ultrastructure), Electron Probe Microanalysis, Epithelial Cells (drug effects), Epithelial Cells (metabolism), Gastrointestinal Tract (cytology), Metals, Heavy (pharmacokinetics), Metals, Heavy (toxicity), Microscopy, Electron, Transmission, Tissue Distribution, Water Pollutants, Chemical (pharmacokinetics), Water Pollutants, Chemical (toxicity).
- MESH :
- chemical , pharmacokinetics : Metals, Heavy, Water Pollutants, Chemical.
- cytology : Gastrointestinal Tract.
- drug effects : Copepoda, Epithelial Cells.
- metabolism : Copepoda, Epithelial Cells.
- chemical , toxicity : Metals, Heavy, Water Pollutants, Chemical.
- ultrastructure : Copepoda.
- Animals, Electron Probe Microanalysis, Microscopy, Electron, Transmission, Tissue Distribution.
Abstract
The marine harpacticoid copepods Tigriopus brevicornis were collected along the French Atlantic Coast (Loire Atlantique) and subsequently exposed to different lethal and sublethal concentrations of various metals (copper, zinc, nickel, cadmium, silver and mercury) for varying lengths of time. Ultrastructural investigations of control and experimentally exposed copepods were performed to investigate the intracellular localization of metals using transmission electronic microscopy (TEM). Copepod digestive epithelium cells as well as the cuticular integument were found to be the major metal storage tissues. Different types of metal-containing granules were found in both metal-exposed copepods and the controls: (1) within lysosomes, (2) in intracellular calcospherites and (3) in extracellular tiny granules. The elemental composition of the granules was determined on ultrathin sections by means of energy dispersive X-ray spectroscopy (EDS). The results were interpreted by considering previous data in order to understand how Tigriopus brevicornis copes with the presence of metals in its environment.
DOI: 10.1007/s10646-007-0155-z
PubMed: 17629789
Affiliations:
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pubmed:17629789Le document en format XML
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Ultrastructural investigations of control and experimentally exposed copepods were performed to investigate the intracellular localization of metals using transmission electronic microscopy (TEM). Copepod digestive epithelium cells as well as the cuticular integument were found to be the major metal storage tissues. Different types of metal-containing granules were found in both metal-exposed copepods and the controls: (1) within lysosomes, (2) in intracellular calcospherites and (3) in extracellular tiny granules. The elemental composition of the granules was determined on ultrathin sections by means of energy dispersive X-ray spectroscopy (EDS). The results were interpreted by considering previous data in order to understand how Tigriopus brevicornis copes with the presence of metals in its environment.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17629789</PMID><DateCreated><Year>2007</Year><Month>08</Month><Day>27</Day></DateCreated><DateCompleted><Year>2007</Year><Month>11</Month><Day>13</Day></DateCompleted><DateRevised><Year>2007</Year><Month>08</Month><Day>27</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0963-9292</ISSN><JournalIssue CitedMedium="Print"><Volume>16</Volume><Issue>7</Issue><PubDate><Year>2007</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Ecotoxicology (London, England)</Title><ISOAbbreviation>Ecotoxicology</ISOAbbreviation></Journal><ArticleTitle>Insoluble detoxification of trace metals in a marine copepod Tigriopus brevicornis (Müller) exposed to copper, zinc, nickel, cadmium, silver and mercury.</ArticleTitle><Pagination><MedlinePgn>491-502</MedlinePgn></Pagination><Abstract><AbstractText>The marine harpacticoid copepods Tigriopus brevicornis were collected along the French Atlantic Coast (Loire Atlantique) and subsequently exposed to different lethal and sublethal concentrations of various metals (copper, zinc, nickel, cadmium, silver and mercury) for varying lengths of time. Ultrastructural investigations of control and experimentally exposed copepods were performed to investigate the intracellular localization of metals using transmission electronic microscopy (TEM). Copepod digestive epithelium cells as well as the cuticular integument were found to be the major metal storage tissues. Different types of metal-containing granules were found in both metal-exposed copepods and the controls: (1) within lysosomes, (2) in intracellular calcospherites and (3) in extracellular tiny granules. The elemental composition of the granules was determined on ultrathin sections by means of energy dispersive X-ray spectroscopy (EDS). The results were interpreted by considering previous data in order to understand how Tigriopus brevicornis copes with the presence of metals in its environment.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Barka</LastName><ForeName>Sabria</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Laboratoire de Toxicologie Marine et Environnementale, UR 09-03, Université de Sfax, IPEIS, BP 805, 3018 Sfax, Tunisia. sabriabarka2@yahoo.fr</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2007</Year><Month>07</Month><Day>15</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Ecotoxicology</MedlineTA><NlmUniqueID>9885956</NlmUniqueID><ISSNLinking>0963-9292</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D019216">Metals, Heavy</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014874">Water Pollutants, Chemical</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D033342" MajorTopicYN="N">Copepoda</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004577" MajorTopicYN="N">Electron Probe Microanalysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004847" MajorTopicYN="N">Epithelial Cells</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D041981" MajorTopicYN="N">Gastrointestinal Tract</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D019216" MajorTopicYN="N">Metals, Heavy</DescriptorName><QualifierName UI="Q000493" MajorTopicYN="N">pharmacokinetics</QualifierName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D046529" MajorTopicYN="N">Microscopy, Electron, Transmission</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014018" MajorTopicYN="N">Tissue Distribution</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014874" MajorTopicYN="N">Water Pollutants, Chemical</DescriptorName><QualifierName UI="Q000493" MajorTopicYN="N">pharmacokinetics</QualifierName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2007</Year><Month>03</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2007</Year><Month>06</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>7</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>11</Month><Day>14</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>7</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17629789</ArticleId><ArticleId IdType="doi">10.1007/s10646-007-0155-z</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Tunisie</li></country></list><tree><country name="Tunisie"><noRegion><name sortKey="Barka, Sabria" sort="Barka, Sabria" uniqKey="Barka S" first="Sabria" last="Barka">Sabria Barka</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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