Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): a histological and scanning electron microscopy study.
Identifieur interne : 000073 ( Ncbi/Curation ); précédent : 000072; suivant : 000074Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): a histological and scanning electron microscopy study.
Auteurs : R. Araujo [Espagne] ; N. Cámara ; M A RamosSource :
- Journal of morphology [ 0362-2525 ] ; 2002.
English descriptors
- KwdEn :
- Animals, Bivalvia (growth & development), Bivalvia (metabolism), Bivalvia (ultrastructure), Fishes (parasitology), Gills (parasitology), Gills (ultrastructure), Host-Parasite Interactions (physiology), Larva (growth & development), Larva (metabolism), Larva (ultrastructure), Metamorphosis, Biological (physiology), Microscopy, Electron, Scanning.
- MESH :
- growth & development : Bivalvia, Larva.
- metabolism : Bivalvia, Larva.
- parasitology : Fishes, Gills.
- physiology : Host-Parasite Interactions, Metamorphosis, Biological.
- ultrastructure : Bivalvia, Gills, Larva.
- Animals, Microscopy, Electron, Scanning.
Abstract
The metamorphosis of the glochidium of the critically endangered Margaritifera auricularia in the gills of a host is studied here for the first time. Siberian sturgeon, Acipenser baeri, were infected with glochidia and regularly inspected using scanning and optical microscopy. The mature glochidia immediately attach to the epithelium of the sturgeon gill filaments, piercing the secondary lamellae and the connective tissues, blood cells, and vessels within the lamellae. Once the epithelium is pierced, overlapping host lamellae cover the glochidium and form a cyst. Metamorphosis takes place inside the cyst. Sixteen days after infection the glochidium becomes spherical in shape and the larval muscle is reabsorbed. The two adductor muscles of the juvenile are observed 34 days after infection at 16-20 degrees C. Metamorphosis is complete in approximately 51 days at 18-22 degrees C and in 65 days at 16-17 degrees C. Released juveniles have a spherical shell with a thin rim of new shell material and a finely ciliated foot. Juvenile mean measurements are: length = 190 microm, width = 193 microm, and height = 210 microm.
DOI: 10.1002/jmor.10031
PubMed: 12386896
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): a histological and scanning electron microscopy study.</title><author><name sortKey="Araujo, R" sort="Araujo, R" uniqKey="Araujo R" first="R" last="Araujo">R. Araujo</name><affiliation wicri:level="2"><nlm:affiliation>Department of Biodiversity and Evolutive Biology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain. rafael@mncn.csic.es</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Biodiversity and Evolutive Biology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid</wicri:regionArea><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author><author><name sortKey="Camara, N" sort="Camara, N" uniqKey="Camara N" first="N" last="Cámara">N. Cámara</name></author><author><name sortKey="Ramos, M A" sort="Ramos, M A" uniqKey="Ramos M" first="M A" last="Ramos">M A Ramos</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2002">2002</date><idno type="RBID">pubmed:12386896</idno><idno type="pmid">12386896</idno><idno type="doi">10.1002/jmor.10031</idno><idno type="wicri:Area/PubMed/Corpus">000597</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000597</idno><idno type="wicri:Area/PubMed/Curation">000597</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000597</idno><idno type="wicri:Area/PubMed/Checkpoint">000597</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000597</idno><idno type="wicri:Area/Ncbi/Merge">000073</idno><idno type="wicri:Area/Ncbi/Curation">000073</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): a histological and scanning electron microscopy study.</title><author><name sortKey="Araujo, R" sort="Araujo, R" uniqKey="Araujo R" first="R" last="Araujo">R. Araujo</name><affiliation wicri:level="2"><nlm:affiliation>Department of Biodiversity and Evolutive Biology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain. rafael@mncn.csic.es</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Biodiversity and Evolutive Biology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid</wicri:regionArea><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author><author><name sortKey="Camara, N" sort="Camara, N" uniqKey="Camara N" first="N" last="Cámara">N. Cámara</name></author><author><name sortKey="Ramos, M A" sort="Ramos, M A" uniqKey="Ramos M" first="M A" last="Ramos">M A Ramos</name></author></analytic><series><title level="j">Journal of morphology</title><idno type="ISSN">0362-2525</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Bivalvia (growth & development)</term><term>Bivalvia (metabolism)</term><term>Bivalvia (ultrastructure)</term><term>Fishes (parasitology)</term><term>Gills (parasitology)</term><term>Gills (ultrastructure)</term><term>Host-Parasite Interactions (physiology)</term><term>Larva (growth & development)</term><term>Larva (metabolism)</term><term>Larva (ultrastructure)</term><term>Metamorphosis, Biological (physiology)</term><term>Microscopy, Electron, Scanning</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Bivalvia</term><term>Larva</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Bivalvia</term><term>Larva</term></keywords><keywords scheme="MESH" qualifier="parasitology" xml:lang="en"><term>Fishes</term><term>Gills</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Host-Parasite Interactions</term><term>Metamorphosis, Biological</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Bivalvia</term><term>Gills</term><term>Larva</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Microscopy, Electron, Scanning</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The metamorphosis of the glochidium of the critically endangered Margaritifera auricularia in the gills of a host is studied here for the first time. Siberian sturgeon, Acipenser baeri, were infected with glochidia and regularly inspected using scanning and optical microscopy. The mature glochidia immediately attach to the epithelium of the sturgeon gill filaments, piercing the secondary lamellae and the connective tissues, blood cells, and vessels within the lamellae. Once the epithelium is pierced, overlapping host lamellae cover the glochidium and form a cyst. Metamorphosis takes place inside the cyst. Sixteen days after infection the glochidium becomes spherical in shape and the larval muscle is reabsorbed. The two adductor muscles of the juvenile are observed 34 days after infection at 16-20 degrees C. Metamorphosis is complete in approximately 51 days at 18-22 degrees C and in 65 days at 16-17 degrees C. Released juveniles have a spherical shell with a thin rim of new shell material and a finely ciliated foot. Juvenile mean measurements are: length = 190 microm, width = 193 microm, and height = 210 microm.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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