Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development
- Autores
- Ibáñez, Cecilia I.; Bozzini, Juan Pablo; Mariano, Marta
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The post-embryonic development of the female gonads in Triatoma infestans (Hemiptera, Heteroptera), insects of importance in health affairs as harbors and vectors of different tripanosomatidea flagellates, is presented in a complete follow-up since insect hatches from the egg up to the last molt in the fifth instar stage. The detailed description of the morphological changes which occur in each instar as well as careful measurements evaluating its size increase have been analyzed by stereomicroscopy, phase contrast, dark field, and oblique illumination, in order to optimize the observations as well the photographic register of gonad morphology and structure. The analysis was performed on gonad specimens obtained from broods no less than twenty (20) nymph bugs, reared at constant temperature and fed-up regularly. According to the results of our study we can assert that gonad differentiation takes place in early phases of the insect development. Such is the case that first instars nymph's present absolutely and easily recognizably male and female gonads. From the third instar on beside the filament region, the three zones in each ovariole body is distinguished, a differentiation that is more noticeable during the fourth instar where a definite organization is present at the vitelarium. Such a clear cut zone development continues intensively during the fifth instar. Finally at the end of such fifth nymph stage and when the last molt toward adults is prepared, clear signs of ovariole maturation take place since oocytes in early vitelogenesis are found.
Fil: Ibáñez, Cecilia I. ANLIS Dr.C.G.Malbrán; Argentina.
Fil: Bozzini, Juan Pablo. ANLIS Dr.C.G.Malbrán; Argentina.
Fil: Mariano, Marta. ANLIS Dr.C.G.Malbrán; Argentina. - Fuente
- Biocell, 2004, 28(3), 259–269.
- Materia
-
Ovario
Hemípteros
Insectos - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- Repositorio
- Institución
- Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"
- OAI Identificador
- oai:sgc.anlis.gob.ar:123456789/364
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Sistema de Gestión del Conocimiento ANLIS MALBRÁN |
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Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic developmentIbáñez, Cecilia I.Bozzini, Juan PabloMariano, MartaOvarioHemípterosInsectosThe post-embryonic development of the female gonads in Triatoma infestans (Hemiptera, Heteroptera), insects of importance in health affairs as harbors and vectors of different tripanosomatidea flagellates, is presented in a complete follow-up since insect hatches from the egg up to the last molt in the fifth instar stage. The detailed description of the morphological changes which occur in each instar as well as careful measurements evaluating its size increase have been analyzed by stereomicroscopy, phase contrast, dark field, and oblique illumination, in order to optimize the observations as well the photographic register of gonad morphology and structure. The analysis was performed on gonad specimens obtained from broods no less than twenty (20) nymph bugs, reared at constant temperature and fed-up regularly. According to the results of our study we can assert that gonad differentiation takes place in early phases of the insect development. Such is the case that first instars nymph's present absolutely and easily recognizably male and female gonads. From the third instar on beside the filament region, the three zones in each ovariole body is distinguished, a differentiation that is more noticeable during the fourth instar where a definite organization is present at the vitelarium. Such a clear cut zone development continues intensively during the fifth instar. Finally at the end of such fifth nymph stage and when the last molt toward adults is prepared, clear signs of ovariole maturation take place since oocytes in early vitelogenesis are found.Fil: Ibáñez, Cecilia I. ANLIS Dr.C.G.Malbrán; Argentina.Fil: Bozzini, Juan Pablo. ANLIS Dr.C.G.Malbrán; Argentina.Fil: Mariano, Marta. ANLIS Dr.C.G.Malbrán; Argentina.2004info:ar-repo/semantics/articuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://sgc.anlis.gob.ar/handle/123456789/364http://www.scielo.org.ar/pdf/biocell/v28n3/v28n3a02.pdfBiocell, 2004, 28(3), 259–269.reponame:Sistema de Gestión del Conocimiento ANLIS MALBRÁNinstname:Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"instacron:ANLISenginfo:eu-repo/semantics/openAccess2025-09-29T14:29:59Zoai:sgc.anlis.gob.ar:123456789/364Institucionalhttp://sgc.anlis.gob.ar/Organismo científico-tecnológicoNo correspondehttp://sgc.anlis.gob.ar/oai/biblioteca@anlis.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-09-29 14:30:00.318Sistema de Gestión del Conocimiento ANLIS MALBRÁN - Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"false |
dc.title.none.fl_str_mv |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development |
title |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development |
spellingShingle |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development Ibáñez, Cecilia I. Ovario Hemípteros Insectos |
title_short |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development |
title_full |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development |
title_fullStr |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development |
title_full_unstemmed |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development |
title_sort |
Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads. I - Post embryonic development |
dc.creator.none.fl_str_mv |
Ibáñez, Cecilia I. Bozzini, Juan Pablo Mariano, Marta |
author |
Ibáñez, Cecilia I. |
author_facet |
Ibáñez, Cecilia I. Bozzini, Juan Pablo Mariano, Marta |
author_role |
author |
author2 |
Bozzini, Juan Pablo Mariano, Marta |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ovario Hemípteros Insectos |
topic |
Ovario Hemípteros Insectos |
dc.description.none.fl_txt_mv |
The post-embryonic development of the female gonads in Triatoma infestans (Hemiptera, Heteroptera), insects of importance in health affairs as harbors and vectors of different tripanosomatidea flagellates, is presented in a complete follow-up since insect hatches from the egg up to the last molt in the fifth instar stage. The detailed description of the morphological changes which occur in each instar as well as careful measurements evaluating its size increase have been analyzed by stereomicroscopy, phase contrast, dark field, and oblique illumination, in order to optimize the observations as well the photographic register of gonad morphology and structure. The analysis was performed on gonad specimens obtained from broods no less than twenty (20) nymph bugs, reared at constant temperature and fed-up regularly. According to the results of our study we can assert that gonad differentiation takes place in early phases of the insect development. Such is the case that first instars nymph's present absolutely and easily recognizably male and female gonads. From the third instar on beside the filament region, the three zones in each ovariole body is distinguished, a differentiation that is more noticeable during the fourth instar where a definite organization is present at the vitelarium. Such a clear cut zone development continues intensively during the fifth instar. Finally at the end of such fifth nymph stage and when the last molt toward adults is prepared, clear signs of ovariole maturation take place since oocytes in early vitelogenesis are found. Fil: Ibáñez, Cecilia I. ANLIS Dr.C.G.Malbrán; Argentina. Fil: Bozzini, Juan Pablo. ANLIS Dr.C.G.Malbrán; Argentina. Fil: Mariano, Marta. ANLIS Dr.C.G.Malbrán; Argentina. |
description |
The post-embryonic development of the female gonads in Triatoma infestans (Hemiptera, Heteroptera), insects of importance in health affairs as harbors and vectors of different tripanosomatidea flagellates, is presented in a complete follow-up since insect hatches from the egg up to the last molt in the fifth instar stage. The detailed description of the morphological changes which occur in each instar as well as careful measurements evaluating its size increase have been analyzed by stereomicroscopy, phase contrast, dark field, and oblique illumination, in order to optimize the observations as well the photographic register of gonad morphology and structure. The analysis was performed on gonad specimens obtained from broods no less than twenty (20) nymph bugs, reared at constant temperature and fed-up regularly. According to the results of our study we can assert that gonad differentiation takes place in early phases of the insect development. Such is the case that first instars nymph's present absolutely and easily recognizably male and female gonads. From the third instar on beside the filament region, the three zones in each ovariole body is distinguished, a differentiation that is more noticeable during the fourth instar where a definite organization is present at the vitelarium. Such a clear cut zone development continues intensively during the fifth instar. Finally at the end of such fifth nymph stage and when the last molt toward adults is prepared, clear signs of ovariole maturation take place since oocytes in early vitelogenesis are found. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004 |
dc.type.none.fl_str_mv |
info:ar-repo/semantics/articulo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sgc.anlis.gob.ar/handle/123456789/364 http://www.scielo.org.ar/pdf/biocell/v28n3/v28n3a02.pdf |
url |
http://sgc.anlis.gob.ar/handle/123456789/364 http://www.scielo.org.ar/pdf/biocell/v28n3/v28n3a02.pdf |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Biocell, 2004, 28(3), 259–269. reponame:Sistema de Gestión del Conocimiento ANLIS MALBRÁN instname:Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán" instacron:ANLIS |
reponame_str |
Sistema de Gestión del Conocimiento ANLIS MALBRÁN |
collection |
Sistema de Gestión del Conocimiento ANLIS MALBRÁN |
instname_str |
Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán" |
instacron_str |
ANLIS |
institution |
ANLIS |
repository.name.fl_str_mv |
Sistema de Gestión del Conocimiento ANLIS MALBRÁN - Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán" |
repository.mail.fl_str_mv |
biblioteca@anlis.gov.ar |
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1844621852216918016 |
score |
12.559606 |