EdenteV2, France, Analysis, bibRecord, 000413

Structure and Development of Teeth in Three Armoured Catfish, Corydoras aeneus, C. arcuatus and Hoplosternum littorale (Siluriformes, Callichthyidae)

Identifieur interne : 000413 ( France/Analysis ); précédent : 000412; suivant : 000414

Structure and Development of Teeth in Three Armoured Catfish, Corydoras aeneus, C. arcuatus and Hoplosternum littorale (Siluriformes, Callichthyidae)

Auteurs : A. Huysseune [Belgique] ; J. Sire [France]

Source :

Acta Zoologica [ 0001-7272 ] ; 1997-01.

RBID : ISTEX:E56ECED02114DF5E3474134D8BB7ABD3E8F9FA5E

English descriptors

Abstract

We have studied the premaxillary teeth in three armoured catfish, Corydoras aeneus, C. arcuatus and Hoplosternum littorale, by means of light and electron microscopy, in order to compare their development, fine structure and mode of attachment with that of odontodes and other teleost teeth. A premaxillary dentition consisting of small (50–100 μm long) slender pointed teeth showing no true replacement is only present in larval and juvenile stages and is subsequently lost, possibly in relation to a change in feeding mode from predatory to bottom feeder. Like odontodes, teeth are composed of dentine surrounding a pulp cavity and are covered by a hypermineralized cap. Particular features, also found in odontodes, are the absence of dentinal tubules and of nerves and capillaries in the pulp cavity, both possibly related to the small size of the teeth. The irregular pattern of implantation and the variability in attachment mode (primary and/or secondary attachment bone, fusion, mere apposition or ligamentous connection) distinguish the teeth from most other teleost teeth and from odontodes and are interpreted as reflecting considerable differences in dynamics of remodeling of the supporting element (premaxillary bone vs scute). This comparison of teeth and odontodes strongly supports current views according to which teeth and odontodes are two very closely related phenotypic expressions of a single, modifiable, morphogenetic system probably rooted in the earliest stages of vertebrate evolution.

Url:

https://api.istex.fr/document/E56ECED02114DF5E3474134D8BB7ABD3E8F9FA5E/fulltext/pdf

DOI: 10.1111/j.1463-6395.1997.tb01128.x

Affiliations:

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ISTEX:E56ECED02114DF5E3474134D8BB7ABD3E8F9FA5E

Le document en format XML

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<author><name sortKey="Sire, J" sort="Sire, J" uniqKey="Sire J" first="J." last="Sire">J. Sire</name>
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<sourceDesc><biblStruct><analytic><title level="a" type="main">Structure and Development of Teeth in Three Armoured Catfish, <hi rend="italic">Corydoras aeneus, C. arcuatus</hi>
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 (Siluriformes, Callichthyidae)</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aeneus</term>
<term>Armoured</term>
<term>Armoured catfish</term>
<term>Arrowhead</term>
<term>Attachment</term>
<term>Attachment bone</term>
<term>Attachment mode</term>
<term>Background substance</term>
<term>Basal</term>
<term>Basal lamina</term>
<term>Bone</term>
<term>Buccal</term>
<term>Buccal epithelium</term>
<term>Callichthyids</term>
<term>Collagen fibrils</term>
<term>Corydoras</term>
<term>Corydoras aeneus</term>
<term>Dental organ</term>
<term>Dental papilla</term>
<term>Dentigerous</term>
<term>Dentigerous part</term>
<term>Dentinal</term>
<term>Dentinal tubules</term>
<term>Dentine</term>
<term>Dentine base</term>
<term>Dentition</term>
<term>Deposition</term>
<term>Dermal</term>
<term>Dermal skeleton</term>
<term>Developmental stages</term>
<term>Epithelium</term>
<term>Fibril</term>
<term>Fine structure</term>
<term>Germ</term>
<term>Hoplosternum</term>
<term>Hoplosternum littorale</term>
<term>Hoplosternum littorcile</term>
<term>Hoplosternum littorule</term>
<term>Huysseune</term>
<term>Hypermineralized</term>
<term>Hypermineralized substance</term>
<term>Irregular pattern</term>
<term>Juvenile specimen</term>
<term>Juvenile stages</term>
<term>Lamina</term>
<term>Lamina densa</term>
<term>Larval</term>
<term>Larval stages</term>
<term>Ligament</term>
<term>Ligamentous connection</term>
<term>Littorale</term>
<term>Littorule</term>
<term>Matrix</term>
<term>Medial</term>
<term>Medial side</term>
<term>Meunier</term>
<term>Micrometre</term>
<term>Odontoblast</term>
<term>Odontodes</term>
<term>Oral teeth</term>
<term>Other side</term>
<term>Papilla</term>
<term>Pharyngeal</term>
<term>Pharyngeal jaws</term>
<term>Premaxillary</term>
<term>Premaxillary bone</term>
<term>Premaxillary teeth</term>
<term>Primary attachment bone</term>
<term>Pulp cavity</term>
<term>Resorption</term>
<term>Reversal lines</term>
<term>Scute</term>
<term>Secondary attachment bone</term>
<term>Secondary type</term>
<term>Serial sections</term>
<term>Siluriformes</term>
<term>Sire</term>
<term>Sire huysseune</term>
<term>Small size</term>
<term>Smith hall</term>
<term>Teleost</term>
<term>Tooth</term>
<term>Tooth attachment</term>
<term>Tooth base</term>
<term>Tooth development</term>
<term>Tooth germ</term>
<term>Tooth germs</term>
<term>Transverse section</term>
<term>Tubule</term>
<term>Variable shape</term>
<term>Vertebrate</term>
<term>Vertebrate evolution</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Aeneus</term>
<term>Armoured</term>
<term>Armoured catfish</term>
<term>Arrowhead</term>
<term>Attachment</term>
<term>Attachment bone</term>
<term>Attachment mode</term>
<term>Background substance</term>
<term>Basal</term>
<term>Basal lamina</term>
<term>Bone</term>
<term>Buccal</term>
<term>Buccal epithelium</term>
<term>Callichthyids</term>
<term>Collagen fibrils</term>
<term>Corydoras</term>
<term>Corydoras aeneus</term>
<term>Dental organ</term>
<term>Dental papilla</term>
<term>Dentigerous</term>
<term>Dentigerous part</term>
<term>Dentinal</term>
<term>Dentinal tubules</term>
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<term>Dentine base</term>
<term>Dentition</term>
<term>Deposition</term>
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<term>Dermal skeleton</term>
<term>Developmental stages</term>
<term>Epithelium</term>
<term>Fibril</term>
<term>Fine structure</term>
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<term>Hoplosternum littorule</term>
<term>Huysseune</term>
<term>Hypermineralized</term>
<term>Hypermineralized substance</term>
<term>Irregular pattern</term>
<term>Juvenile specimen</term>
<term>Juvenile stages</term>
<term>Lamina</term>
<term>Lamina densa</term>
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<term>Larval stages</term>
<term>Ligament</term>
<term>Ligamentous connection</term>
<term>Littorale</term>
<term>Littorule</term>
<term>Matrix</term>
<term>Medial</term>
<term>Medial side</term>
<term>Meunier</term>
<term>Micrometre</term>
<term>Odontoblast</term>
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<term>Oral teeth</term>
<term>Other side</term>
<term>Papilla</term>
<term>Pharyngeal</term>
<term>Pharyngeal jaws</term>
<term>Premaxillary</term>
<term>Premaxillary bone</term>
<term>Premaxillary teeth</term>
<term>Primary attachment bone</term>
<term>Pulp cavity</term>
<term>Resorption</term>
<term>Reversal lines</term>
<term>Scute</term>
<term>Secondary attachment bone</term>
<term>Secondary type</term>
<term>Serial sections</term>
<term>Siluriformes</term>
<term>Sire</term>
<term>Sire huysseune</term>
<term>Small size</term>
<term>Smith hall</term>
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<term>Tooth</term>
<term>Tooth attachment</term>
<term>Tooth base</term>
<term>Tooth development</term>
<term>Tooth germ</term>
<term>Tooth germs</term>
<term>Transverse section</term>
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<term>Variable shape</term>
<term>Vertebrate</term>
<term>Vertebrate evolution</term>
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<front><div type="abstract" xml:lang="en">We have studied the premaxillary teeth in three armoured catfish, Corydoras aeneus, C. arcuatus and Hoplosternum littorale, by means of light and electron microscopy, in order to compare their development, fine structure and mode of attachment with that of odontodes and other teleost teeth. A premaxillary dentition consisting of small (50–100 μm long) slender pointed teeth showing no true replacement is only present in larval and juvenile stages and is subsequently lost, possibly in relation to a change in feeding mode from predatory to bottom feeder. Like odontodes, teeth are composed of dentine surrounding a pulp cavity and are covered by a hypermineralized cap. Particular features, also found in odontodes, are the absence of dentinal tubules and of nerves and capillaries in the pulp cavity, both possibly related to the small size of the teeth. The irregular pattern of implantation and the variability in attachment mode (primary and/or secondary attachment bone, fusion, mere apposition or ligamentous connection) distinguish the teeth from most other teleost teeth and from odontodes and are interpreted as reflecting considerable differences in dynamics of remodeling of the supporting element (premaxillary bone vs scute). This comparison of teeth and odontodes strongly supports current views according to which teeth and odontodes are two very closely related phenotypic expressions of a single, modifiable, morphogenetic system probably rooted in the earliest stages of vertebrate evolution.</div>
</front>
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Structure and Development of Teeth in Three Armoured Catfish, Corydoras aeneus, C. arcuatus and Hoplosternum littorale (Siluriformes, Callichthyidae)

Structure and Development of Teeth in Three Armoured Catfish, Corydoras aeneus, C. arcuatus and Hoplosternum littorale (Siluriformes, Callichthyidae)

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

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