Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae

Autores
Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia; Zarlavsky, Gabriela Elena; Rosenfeldt, Sonia
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ultrastructural studies on the female gametophyte are restricted to species at relatively derived positionsin the angiosperm phylogenetic tree. Therefore, this topic remains mostly unknown for the early-divergent lineages, in which a four-celled megagametophyte is common. Here, ultrastructure of themegagametophyte and micropylar nucellar epidermis was investigated in Cabomba caroliniana A. Gray(Cabombaceae), Nymphaea gardneriana Planch. and Victoria cruziana Orb. (Nymphaeaceae). The micropy-lar nucellar epidermis of the studied species differentiates into an epistase. These cells have metabolicallyactive cytoplasm and thickened inner tangential walls. Epistase ultrastructure is compatible with a trans-fer cell specialization. This tissue may play an adaptive role in the secretion of chemotropic substancesto direct the pollen tube growth toward the female gametophyte. The cytological characteristics ofthe female germ unit in members of Cabombaceae and Nymphaeaceae are generally similar to otherangiosperms that develop a typical seven-celled, eight-nucleate female gametophyte; however, theydiffer in some specific points. In V. cruziana and N. gardneriana, the micropylar end of the synergidsdevelops a rudimentary filiform apparatus with slight inward projections. By contrast, the synergidslack a filiform apparatus in C. caroliniana. Unlike most studied angiosperms, the filiform apparatus inthe clade Cabombaceae-Nymphaeaceae is underdeveloped or absent, therefore character state transfor-mations have occurred within basal angiosperms. The potential evolutionary shifts of this reproductivefeature are highlighted.
Fil: Zini, Lucia Melisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Ferrucci, MarÍa Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Zarlavsky, Gabriela Elena. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Rosenfeldt, Sonia. Universidad de Buenos Aires; Argentina
Materia
Cabomba Caroliniana
Filiform Apparatus
Nymphaea Gardneriana
Transfer Cell
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/25074
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/25074
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and NymphaeaceaeZini, Lucia MelisaGalati, Beatriz GloriaFerrucci, María SilviaZarlavsky, Gabriela ElenaRosenfeldt, SoniaCabomba CarolinianaFiliform ApparatusNymphaea GardnerianaTransfer Cellhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Ultrastructural studies on the female gametophyte are restricted to species at relatively derived positionsin the angiosperm phylogenetic tree. Therefore, this topic remains mostly unknown for the early-divergent lineages, in which a four-celled megagametophyte is common. Here, ultrastructure of themegagametophyte and micropylar nucellar epidermis was investigated in Cabomba caroliniana A. Gray(Cabombaceae), Nymphaea gardneriana Planch. and Victoria cruziana Orb. (Nymphaeaceae). The micropy-lar nucellar epidermis of the studied species differentiates into an epistase. These cells have metabolicallyactive cytoplasm and thickened inner tangential walls. Epistase ultrastructure is compatible with a trans-fer cell specialization. This tissue may play an adaptive role in the secretion of chemotropic substancesto direct the pollen tube growth toward the female gametophyte. The cytological characteristics ofthe female germ unit in members of Cabombaceae and Nymphaeaceae are generally similar to otherangiosperms that develop a typical seven-celled, eight-nucleate female gametophyte; however, theydiffer in some specific points. In V. cruziana and N. gardneriana, the micropylar end of the synergidsdevelops a rudimentary filiform apparatus with slight inward projections. By contrast, the synergidslack a filiform apparatus in C. caroliniana. Unlike most studied angiosperms, the filiform apparatus inthe clade Cabombaceae-Nymphaeaceae is underdeveloped or absent, therefore character state transfor-mations have occurred within basal angiosperms. The potential evolutionary shifts of this reproductivefeature are highlighted.Fil: Zini, Lucia Melisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Agronomia; ArgentinaFil: Ferrucci, MarÍa Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Zarlavsky, Gabriela Elena. Universidad de Buenos Aires. Facultad de Agronomia; ArgentinaFil: Rosenfeldt, Sonia. Universidad de Buenos Aires; ArgentinaElsevier Gmbh2016-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25074Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia; Zarlavsky, Gabriela Elena; Rosenfeldt, Sonia; Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae; Elsevier Gmbh; Flora; 220; 2-2016; 25-360367-2530CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.flora.2016.02.006info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0367253016300160info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:56Zoai:ri.conicet.gov.ar:11336/25074instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:32:57.287CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
title Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
spellingShingle Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
Zini, Lucia Melisa
Cabomba Caroliniana
Filiform Apparatus
Nymphaea Gardneriana
Transfer Cell
title_short Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
title_full Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
title_fullStr Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
title_full_unstemmed Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
title_sort Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
dc.creator.none.fl_str_mv Zini, Lucia Melisa
Galati, Beatriz Gloria
Ferrucci, María Silvia
Zarlavsky, Gabriela Elena
Rosenfeldt, Sonia
author Zini, Lucia Melisa
author_facet Zini, Lucia Melisa
Galati, Beatriz Gloria
Ferrucci, María Silvia
Zarlavsky, Gabriela Elena
Rosenfeldt, Sonia
author_role author
author2 Galati, Beatriz Gloria
Ferrucci, María Silvia
Zarlavsky, Gabriela Elena
Rosenfeldt, Sonia
author2_role author
author
author
author
dc.subject.none.fl_str_mv Cabomba Caroliniana
Filiform Apparatus
Nymphaea Gardneriana
Transfer Cell
topic Cabomba Caroliniana
Filiform Apparatus
Nymphaea Gardneriana
Transfer Cell
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Ultrastructural studies on the female gametophyte are restricted to species at relatively derived positionsin the angiosperm phylogenetic tree. Therefore, this topic remains mostly unknown for the early-divergent lineages, in which a four-celled megagametophyte is common. Here, ultrastructure of themegagametophyte and micropylar nucellar epidermis was investigated in Cabomba caroliniana A. Gray(Cabombaceae), Nymphaea gardneriana Planch. and Victoria cruziana Orb. (Nymphaeaceae). The micropy-lar nucellar epidermis of the studied species differentiates into an epistase. These cells have metabolicallyactive cytoplasm and thickened inner tangential walls. Epistase ultrastructure is compatible with a trans-fer cell specialization. This tissue may play an adaptive role in the secretion of chemotropic substancesto direct the pollen tube growth toward the female gametophyte. The cytological characteristics ofthe female germ unit in members of Cabombaceae and Nymphaeaceae are generally similar to otherangiosperms that develop a typical seven-celled, eight-nucleate female gametophyte; however, theydiffer in some specific points. In V. cruziana and N. gardneriana, the micropylar end of the synergidsdevelops a rudimentary filiform apparatus with slight inward projections. By contrast, the synergidslack a filiform apparatus in C. caroliniana. Unlike most studied angiosperms, the filiform apparatus inthe clade Cabombaceae-Nymphaeaceae is underdeveloped or absent, therefore character state transfor-mations have occurred within basal angiosperms. The potential evolutionary shifts of this reproductivefeature are highlighted.
Fil: Zini, Lucia Melisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Ferrucci, MarÍa Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Zarlavsky, Gabriela Elena. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Rosenfeldt, Sonia. Universidad de Buenos Aires; Argentina
description Ultrastructural studies on the female gametophyte are restricted to species at relatively derived positionsin the angiosperm phylogenetic tree. Therefore, this topic remains mostly unknown for the early-divergent lineages, in which a four-celled megagametophyte is common. Here, ultrastructure of themegagametophyte and micropylar nucellar epidermis was investigated in Cabomba caroliniana A. Gray(Cabombaceae), Nymphaea gardneriana Planch. and Victoria cruziana Orb. (Nymphaeaceae). The micropy-lar nucellar epidermis of the studied species differentiates into an epistase. These cells have metabolicallyactive cytoplasm and thickened inner tangential walls. Epistase ultrastructure is compatible with a trans-fer cell specialization. This tissue may play an adaptive role in the secretion of chemotropic substancesto direct the pollen tube growth toward the female gametophyte. The cytological characteristics ofthe female germ unit in members of Cabombaceae and Nymphaeaceae are generally similar to otherangiosperms that develop a typical seven-celled, eight-nucleate female gametophyte; however, theydiffer in some specific points. In V. cruziana and N. gardneriana, the micropylar end of the synergidsdevelops a rudimentary filiform apparatus with slight inward projections. By contrast, the synergidslack a filiform apparatus in C. caroliniana. Unlike most studied angiosperms, the filiform apparatus inthe clade Cabombaceae-Nymphaeaceae is underdeveloped or absent, therefore character state transfor-mations have occurred within basal angiosperms. The potential evolutionary shifts of this reproductivefeature are highlighted.
publishDate 2016
dc.date.none.fl_str_mv 2016-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/25074
Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia; Zarlavsky, Gabriela Elena; Rosenfeldt, Sonia; Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae; Elsevier Gmbh; Flora; 220; 2-2016; 25-36
0367-2530
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25074
identifier_str_mv Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia; Zarlavsky, Gabriela Elena; Rosenfeldt, Sonia; Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae; Elsevier Gmbh; Flora; 220; 2-2016; 25-36
0367-2530
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.flora.2016.02.006
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0367253016300160
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Gmbh
publisher.none.fl_str_mv Elsevier Gmbh
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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