Embryology of Macroptilium arenarium (Leguminosae)

Autores
Gotelli, Marina María; Galati, Beatriz Gloria; Hoc, Patricia Susana
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Macroptilium arenarium (Bacigalupo)S.I.Drewes & Palacios produces two floral morphs, aerial chasmogamous flowers and cleistogamous flowers in geophyte racemes. A comparative study of the sporogenesis, gametogenesis and the development of the related sporophytic structures in both floral morphs is reported. The anther is tetrasporangiate, its wall consists of epidermis, endothecium, one or two middle layers and an uninucleate secretory tapetum. The mature endothecium presents fibrilar thickenings that are more developed in cleistogamous flowes. Pollen grains are tricolporate, angulaperturate, and are shed at bicellular stage. The ovule is crassinucelate, bitegmic and anacampylotropous. Megaspore tetrads with linear arrangement have been observed in chasmogamous flowers, whereas only megaspore dyads have been found in cleistogamous flowers. In both floral morphs the chalazal megaspore develops into an embryo sac of Polygonum type. Apomixis is considered as a possible replacement for sexual reproduction in cleistogamous flowers.
Fil: Gotelli, Marina María. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Hoc, Patricia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina
Materia
Embryology
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:11336/30615
Acceder
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spelling Embryology of Macroptilium arenarium (Leguminosae)Gotelli, Marina MaríaGalati, Beatriz GloriaHoc, Patricia SusanaEmbryologyhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Macroptilium arenarium (Bacigalupo)S.I.Drewes & Palacios produces two floral morphs, aerial chasmogamous flowers and cleistogamous flowers in geophyte racemes. A comparative study of the sporogenesis, gametogenesis and the development of the related sporophytic structures in both floral morphs is reported. The anther is tetrasporangiate, its wall consists of epidermis, endothecium, one or two middle layers and an uninucleate secretory tapetum. The mature endothecium presents fibrilar thickenings that are more developed in cleistogamous flowes. Pollen grains are tricolporate, angulaperturate, and are shed at bicellular stage. The ovule is crassinucelate, bitegmic and anacampylotropous. Megaspore tetrads with linear arrangement have been observed in chasmogamous flowers, whereas only megaspore dyads have been found in cleistogamous flowers. In both floral morphs the chalazal megaspore develops into an embryo sac of Polygonum type. Apomixis is considered as a possible replacement for sexual reproduction in cleistogamous flowers.Fil: Gotelli, Marina María. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Hoc, Patricia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; ArgentinaCsiro Publishing2006-09-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30615Gotelli, Marina María; Galati, Beatriz Gloria; Hoc, Patricia Susana; Embryology of Macroptilium arenarium (Leguminosae); Csiro Publishing; Australian Journal of Botany; 54; 6; 15-9-2006; 531-5420067-19241444-9862CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/bt/bt05060info:eu-repo/semantics/altIdentifier/doi/10.1071/BT05060info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:40Zoai:ri.conicet.gov.ar:11336/30615instacron: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:34982025-09-03 10:05:40.41CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Embryology of Macroptilium arenarium (Leguminosae)
title Embryology of Macroptilium arenarium (Leguminosae)
spellingShingle Embryology of Macroptilium arenarium (Leguminosae)
Gotelli, Marina María
Embryology
title_short Embryology of Macroptilium arenarium (Leguminosae)
title_full Embryology of Macroptilium arenarium (Leguminosae)
title_fullStr Embryology of Macroptilium arenarium (Leguminosae)
title_full_unstemmed Embryology of Macroptilium arenarium (Leguminosae)
title_sort Embryology of Macroptilium arenarium (Leguminosae)
dc.creator.none.fl_str_mv Gotelli, Marina María
Galati, Beatriz Gloria
Hoc, Patricia Susana
author Gotelli, Marina María
author_facet Gotelli, Marina María
Galati, Beatriz Gloria
Hoc, Patricia Susana
author_role author
author2 Galati, Beatriz Gloria
Hoc, Patricia Susana
author2_role author
author
dc.subject.none.fl_str_mv Embryology
topic Embryology
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Macroptilium arenarium (Bacigalupo)S.I.Drewes & Palacios produces two floral morphs, aerial chasmogamous flowers and cleistogamous flowers in geophyte racemes. A comparative study of the sporogenesis, gametogenesis and the development of the related sporophytic structures in both floral morphs is reported. The anther is tetrasporangiate, its wall consists of epidermis, endothecium, one or two middle layers and an uninucleate secretory tapetum. The mature endothecium presents fibrilar thickenings that are more developed in cleistogamous flowes. Pollen grains are tricolporate, angulaperturate, and are shed at bicellular stage. The ovule is crassinucelate, bitegmic and anacampylotropous. Megaspore tetrads with linear arrangement have been observed in chasmogamous flowers, whereas only megaspore dyads have been found in cleistogamous flowers. In both floral morphs the chalazal megaspore develops into an embryo sac of Polygonum type. Apomixis is considered as a possible replacement for sexual reproduction in cleistogamous flowers.
Fil: Gotelli, Marina María. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Hoc, Patricia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina
description Macroptilium arenarium (Bacigalupo)S.I.Drewes & Palacios produces two floral morphs, aerial chasmogamous flowers and cleistogamous flowers in geophyte racemes. A comparative study of the sporogenesis, gametogenesis and the development of the related sporophytic structures in both floral morphs is reported. The anther is tetrasporangiate, its wall consists of epidermis, endothecium, one or two middle layers and an uninucleate secretory tapetum. The mature endothecium presents fibrilar thickenings that are more developed in cleistogamous flowes. Pollen grains are tricolporate, angulaperturate, and are shed at bicellular stage. The ovule is crassinucelate, bitegmic and anacampylotropous. Megaspore tetrads with linear arrangement have been observed in chasmogamous flowers, whereas only megaspore dyads have been found in cleistogamous flowers. In both floral morphs the chalazal megaspore develops into an embryo sac of Polygonum type. Apomixis is considered as a possible replacement for sexual reproduction in cleistogamous flowers.
publishDate 2006
dc.date.none.fl_str_mv 2006-09-15
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/11336/30615
Gotelli, Marina María; Galati, Beatriz Gloria; Hoc, Patricia Susana; Embryology of Macroptilium arenarium (Leguminosae); Csiro Publishing; Australian Journal of Botany; 54; 6; 15-9-2006; 531-542
0067-1924
1444-9862
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30615
identifier_str_mv Gotelli, Marina María; Galati, Beatriz Gloria; Hoc, Patricia Susana; Embryology of Macroptilium arenarium (Leguminosae); Csiro Publishing; Australian Journal of Botany; 54; 6; 15-9-2006; 531-542
0067-1924
1444-9862
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/bt/bt05060
info:eu-repo/semantics/altIdentifier/doi/10.1071/BT05060
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
dc.publisher.none.fl_str_mv Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
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 13.13397

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