Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)

Autores
Echeverría, Dinorah Diana
Año de publicación
1990
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Bidder's organ (BO) differentiation takes place at stage 25 (stages; Echeverría et al., 1981). Oogonia and young oocytes (a and b) are placed at BO periphery. During the larval period the BO grows faster than the pregonad (=previous gonad), until the metamorphosis period occurs. On young toads (from one to three years) and on adult male toads (fourth year) the BO shows celular seasonal cycles. The celular cycles shows to steps: a) partial oogenesis in the peripherical surface with prolific and development celular process (proliferation and growth) of the oogonias and small oocytes. b) Development of the oocytes inside the organ: development up to their hypertrophy that finish in degeneration of the oldest oocytes. After that, the empty and atresic folicles take place. There is a comparision between the male and female BO development in young toads
Asociación Herpetológica Argentina (AHA)
Materia
Ciencias Naturales
Zoología
herpetología
Reptiles
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/6210
Acceder
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network_name_str SEDICI (UNLP)
spelling Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)Echeverría, Dinorah DianaCiencias NaturalesZoologíaherpetologíaReptilesThe Bidder's organ (BO) differentiation takes place at stage 25 (stages; Echeverría et al., 1981). Oogonia and young oocytes (a and b) are placed at BO periphery. During the larval period the BO grows faster than the pregonad (=previous gonad), until the metamorphosis period occurs. On young toads (from one to three years) and on adult male toads (fourth year) the BO shows celular seasonal cycles. The celular cycles shows to steps: a) partial oogenesis in the peripherical surface with prolific and development celular process (proliferation and growth) of the oogonias and small oocytes. b) Development of the oocytes inside the organ: development up to their hypertrophy that finish in degeneration of the oldest oocytes. After that, the empty and atresic folicles take place. There is a comparision between the male and female BO development in young toadsAsociación Herpetológica Argentina (AHA)1990info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1-9http://sedici.unlp.edu.ar/handle/10915/6210spainfo:eu-repo/semantics/altIdentifier/url/http://www.aha.org.ar/es/cuadherpetol/issue/5-1-1990.htmlinfo:eu-repo/semantics/altIdentifier/issn/0326-551Xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:22:41Zoai:sedici.unlp.edu.ar:10915/6210Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:22:41.55SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
title Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
spellingShingle Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
Echeverría, Dinorah Diana
Ciencias Naturales
Zoología
herpetología
Reptiles
title_short Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
title_full Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
title_fullStr Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
title_full_unstemmed Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
title_sort Organogénesis y ciclos estacionales del órgano de Bidder en las larvas y los juveniles de <i>Bufo arenarum</i> (Anura: bufonidae)
dc.creator.none.fl_str_mv Echeverría, Dinorah Diana
author Echeverría, Dinorah Diana
author_facet Echeverría, Dinorah Diana
author_role author
dc.subject.none.fl_str_mv Ciencias Naturales
Zoología
herpetología
Reptiles
topic Ciencias Naturales
Zoología
herpetología
Reptiles
dc.description.none.fl_txt_mv The Bidder's organ (BO) differentiation takes place at stage 25 (stages; Echeverría et al., 1981). Oogonia and young oocytes (a and b) are placed at BO periphery. During the larval period the BO grows faster than the pregonad (=previous gonad), until the metamorphosis period occurs. On young toads (from one to three years) and on adult male toads (fourth year) the BO shows celular seasonal cycles. The celular cycles shows to steps: a) partial oogenesis in the peripherical surface with prolific and development celular process (proliferation and growth) of the oogonias and small oocytes. b) Development of the oocytes inside the organ: development up to their hypertrophy that finish in degeneration of the oldest oocytes. After that, the empty and atresic folicles take place. There is a comparision between the male and female BO development in young toads
Asociación Herpetológica Argentina (AHA)
description The Bidder's organ (BO) differentiation takes place at stage 25 (stages; Echeverría et al., 1981). Oogonia and young oocytes (a and b) are placed at BO periphery. During the larval period the BO grows faster than the pregonad (=previous gonad), until the metamorphosis period occurs. On young toads (from one to three years) and on adult male toads (fourth year) the BO shows celular seasonal cycles. The celular cycles shows to steps: a) partial oogenesis in the peripherical surface with prolific and development celular process (proliferation and growth) of the oogonias and small oocytes. b) Development of the oocytes inside the organ: development up to their hypertrophy that finish in degeneration of the oldest oocytes. After that, the empty and atresic folicles take place. There is a comparision between the male and female BO development in young toads
publishDate 1990
dc.date.none.fl_str_mv 1990
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/6210
url http://sedici.unlp.edu.ar/handle/10915/6210
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.aha.org.ar/es/cuadherpetol/issue/5-1-1990.html
info:eu-repo/semantics/altIdentifier/issn/0326-551X
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/3.0/
Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
dc.format.none.fl_str_mv application/pdf
1-9
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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