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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
31/05/2016 |
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Data da última atualização: |
29/12/2017 |
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Autoria: |
VIEIRA, L. G.; SANTOS, A. L. Q.; MOURA, L. R.; ORPINELLI, S. R. T.; PEREIRA, F. F.; LIMA, F. C. |
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Afiliação: |
LUCÉIA G. VIEIRA, LAPAS/UFU; ANDRÉ L. Q. SANTOS, LAPAS/UFU; LÉA R. MOURA, Centro Universitário UniEvangélica/Faculdade Metropolitana de Anápolis; STIWENS R. T. ORPINELLI, Faculdade Anhanguera; KLEBER F. PEREIRA, UFG; FABIANO C. LIMA, UFG. |
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Título: |
Morphology, development and heterochrony of the carapace of Giant Amazon River Turtle Podocnemis expansa (Testudines, Podocnemidae). |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 36, n. 5, p. 436-446, maio. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
With aim to report the ontogeny of the osseous elements of the carapace in Peurodiras, 62 embryos and 43 nestlings of Podocnemis expansa were collected and submitted to the clearing and staining technique of bones and cartilages and study of serial histological slices. The carapace has mixed osseous structure of endo and exoskeleton, formed by 8 pairs of costal bones associated with ribs, 7 neural bones associated with neural arches, 11 pairs of peripheral bones, 1 nuchal, 1 pygal and 1 suprapygal. This structure begins its formation in the beginning of stage 16 with the ossification of the periosteal collar of the ribs. With exception of the peripheral bones, the other ones begin their ossification during the embrionary period. In histologic investigation it was found that the costal bones and neural bones have a close relation to the endoskeleton components, originating themselves as intramembranous expansions of the periosteal collar of the ribs and neural arches, respectively. The condensation of the mesenchyme adjacent to the periosteal collar induces the formation of spikes that grow in trabeculae permeated by fibroblasts below the dermis. The nuchal bone also ossifies in an intramembranous way, but does not show direct relation to the endoskeleton. Such information confirms those related to the other Pleurodira, mainly with Podocnemis unifilis, sometimes with conspicuous variations in the chronology of the ossification events. The formation of dermal plates in the carapace of Pleurodira and Criptodira follow the same pattern. MenosWith aim to report the ontogeny of the osseous elements of the carapace in Peurodiras, 62 embryos and 43 nestlings of Podocnemis expansa were collected and submitted to the clearing and staining technique of bones and cartilages and study of serial histological slices. The carapace has mixed osseous structure of endo and exoskeleton, formed by 8 pairs of costal bones associated with ribs, 7 neural bones associated with neural arches, 11 pairs of peripheral bones, 1 nuchal, 1 pygal and 1 suprapygal. This structure begins its formation in the beginning of stage 16 with the ossification of the periosteal collar of the ribs. With exception of the peripheral bones, the other ones begin their ossification during the embrionary period. In histologic investigation it was found that the costal bones and neural bones have a close relation to the endoskeleton components, originating themselves as intramembranous expansions of the periosteal collar of the ribs and neural arches, respectively. The condensation of the mesenchyme adjacent to the periosteal collar induces the formation of spikes that grow in trabeculae permeated by fibroblasts below the dermis. The nuchal bone also ossifies in an intramembranous way, but does not show direct relation to the endoskeleton. Such information confirms those related to the other Pleurodira, mainly with Podocnemis unifilis, sometimes with conspicuous variations in the chronology of the ossification events. The formation of dermal plates in the car... Mostrar Tudo |
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Palavras-Chave: |
CARAPACE; Giant Amazon river turtle; Pleurodira; Shell; Tartaruca da amazonia. |
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Thesagro: |
Carapaça; Casco; Formação osséa; Podocnemis Expansa; Tartaruga. |
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Thesaurus Nal: |
Bone formation; Ontogeny; Testudines; Turtles. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/143613/1/Morphology-development.pdf
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Marc: |
LEADER 02561naa a2200349 a 4500
001 2045988
005 2017-12-29
008 2016 bl uuuu u00u1 u #d
100 1 $aVIEIRA, L. G.
245 $aMorphology, development and heterochrony of the carapace of Giant Amazon River Turtle Podocnemis expansa (Testudines, Podocnemidae).
260 $c2016
520 $aWith aim to report the ontogeny of the osseous elements of the carapace in Peurodiras, 62 embryos and 43 nestlings of Podocnemis expansa were collected and submitted to the clearing and staining technique of bones and cartilages and study of serial histological slices. The carapace has mixed osseous structure of endo and exoskeleton, formed by 8 pairs of costal bones associated with ribs, 7 neural bones associated with neural arches, 11 pairs of peripheral bones, 1 nuchal, 1 pygal and 1 suprapygal. This structure begins its formation in the beginning of stage 16 with the ossification of the periosteal collar of the ribs. With exception of the peripheral bones, the other ones begin their ossification during the embrionary period. In histologic investigation it was found that the costal bones and neural bones have a close relation to the endoskeleton components, originating themselves as intramembranous expansions of the periosteal collar of the ribs and neural arches, respectively. The condensation of the mesenchyme adjacent to the periosteal collar induces the formation of spikes that grow in trabeculae permeated by fibroblasts below the dermis. The nuchal bone also ossifies in an intramembranous way, but does not show direct relation to the endoskeleton. Such information confirms those related to the other Pleurodira, mainly with Podocnemis unifilis, sometimes with conspicuous variations in the chronology of the ossification events. The formation of dermal plates in the carapace of Pleurodira and Criptodira follow the same pattern.
650 $aBone formation
650 $aOntogeny
650 $aTestudines
650 $aTurtles
650 $aCarapaça
650 $aCasco
650 $aFormação osséa
650 $aPodocnemis Expansa
650 $aTartaruga
653 $aCARAPACE
653 $aGiant Amazon river turtle
653 $aPleurodira
653 $aShell
653 $aTartaruca da amazonia
700 1 $aSANTOS, A. L. Q.
700 1 $aMOURA, L. R.
700 1 $aORPINELLI, S. R. T.
700 1 $aPEREIRA, F. F.
700 1 $aLIMA, F. C.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 36, n. 5, p. 436-446, maio. 2016.
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Embrapa Unidades Centrais (AI-SEDE) |
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