Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)

Autores
Pire, Stella Maris; Dematteis, Massimiliano
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pollen variations involving the number and position of the apertures are relatively frequent in certain members of Gentianaceae. In this paper the high incidence of pollen variation in Centaurium pulchellum (Sw.) Druce is described. Two other species of Centaurium: C. ameghinoi (Speg.) Druce and C. cachanlahuen (Molina) B. L. Rob were also examined. These two species have 3-colporate or, less frequently, 4-colporate pollen grains, which are the two basic aperture arrangements. However, there are also a variable proportion of atypical grains. Apart from typical 3-zonacolporate grains, C. ameghinoi sometimes has 3-syncolpate or parasyncolpate pollen, while C. cachanlahuen occasionally has 4-colporate grains with short colpi that converge in pairs. C. pulchellum also has 3 or 4-colporate grains, but a high proportion of the pollen grains show a range of different aperture patterns. A total of 13 aperture configurations, including the typical 3-colporate and 4-colporate types, were recorded. The proportion of the different pollen types varied widely between and within individuals. However, the production of atypical grains does not seem to have any notable effect on pollen viability within the species. It is suggested that the wide variation in aperture pattern observed in C. pulchellum may be partially induced by environmental factors.
Fil: Pire, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Dematteis, Massimiliano. 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
Materia
Variation
Configuration
Trizonacolporate
Tetrazonacolporate
Pollen Fertility
Syncolpate
Colpoid Furrows
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:11336/45129
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/45129
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)Pire, Stella MarisDematteis, MassimilianoVariationConfigurationTrizonacolporateTetrazonacolporatePollen FertilitySyncolpateColpoid Furrowshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Pollen variations involving the number and position of the apertures are relatively frequent in certain members of Gentianaceae. In this paper the high incidence of pollen variation in Centaurium pulchellum (Sw.) Druce is described. Two other species of Centaurium: C. ameghinoi (Speg.) Druce and C. cachanlahuen (Molina) B. L. Rob were also examined. These two species have 3-colporate or, less frequently, 4-colporate pollen grains, which are the two basic aperture arrangements. However, there are also a variable proportion of atypical grains. Apart from typical 3-zonacolporate grains, C. ameghinoi sometimes has 3-syncolpate or parasyncolpate pollen, while C. cachanlahuen occasionally has 4-colporate grains with short colpi that converge in pairs. C. pulchellum also has 3 or 4-colporate grains, but a high proportion of the pollen grains show a range of different aperture patterns. A total of 13 aperture configurations, including the typical 3-colporate and 4-colporate types, were recorded. The proportion of the different pollen types varied widely between and within individuals. However, the production of atypical grains does not seem to have any notable effect on pollen viability within the species. It is suggested that the wide variation in aperture pattern observed in C. pulchellum may be partially induced by environmental factors.Fil: Pire, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Dematteis, Massimiliano. 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; ArgentinaTaylor & Francis As2007-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/45129Pire, Stella Maris; Dematteis, Massimiliano; Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae); Taylor & Francis As; Grana; 46; 1; 3-2007; 1-120017-31341651-2049CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/00173130601101245info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/00173130601101245info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:27Zoai:ri.conicet.gov.ar:11336/45129instacron: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 09:41:28.161CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
title Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
spellingShingle Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
Pire, Stella Maris
Variation
Configuration
Trizonacolporate
Tetrazonacolporate
Pollen Fertility
Syncolpate
Colpoid Furrows
title_short Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
title_full Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
title_fullStr Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
title_full_unstemmed Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
title_sort Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae)
dc.creator.none.fl_str_mv Pire, Stella Maris
Dematteis, Massimiliano
author Pire, Stella Maris
author_facet Pire, Stella Maris
Dematteis, Massimiliano
author_role author
author2 Dematteis, Massimiliano
author2_role author
dc.subject.none.fl_str_mv Variation
Configuration
Trizonacolporate
Tetrazonacolporate
Pollen Fertility
Syncolpate
Colpoid Furrows
topic Variation
Configuration
Trizonacolporate
Tetrazonacolporate
Pollen Fertility
Syncolpate
Colpoid Furrows
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Pollen variations involving the number and position of the apertures are relatively frequent in certain members of Gentianaceae. In this paper the high incidence of pollen variation in Centaurium pulchellum (Sw.) Druce is described. Two other species of Centaurium: C. ameghinoi (Speg.) Druce and C. cachanlahuen (Molina) B. L. Rob were also examined. These two species have 3-colporate or, less frequently, 4-colporate pollen grains, which are the two basic aperture arrangements. However, there are also a variable proportion of atypical grains. Apart from typical 3-zonacolporate grains, C. ameghinoi sometimes has 3-syncolpate or parasyncolpate pollen, while C. cachanlahuen occasionally has 4-colporate grains with short colpi that converge in pairs. C. pulchellum also has 3 or 4-colporate grains, but a high proportion of the pollen grains show a range of different aperture patterns. A total of 13 aperture configurations, including the typical 3-colporate and 4-colporate types, were recorded. The proportion of the different pollen types varied widely between and within individuals. However, the production of atypical grains does not seem to have any notable effect on pollen viability within the species. It is suggested that the wide variation in aperture pattern observed in C. pulchellum may be partially induced by environmental factors.
Fil: Pire, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Dematteis, Massimiliano. 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
description Pollen variations involving the number and position of the apertures are relatively frequent in certain members of Gentianaceae. In this paper the high incidence of pollen variation in Centaurium pulchellum (Sw.) Druce is described. Two other species of Centaurium: C. ameghinoi (Speg.) Druce and C. cachanlahuen (Molina) B. L. Rob were also examined. These two species have 3-colporate or, less frequently, 4-colporate pollen grains, which are the two basic aperture arrangements. However, there are also a variable proportion of atypical grains. Apart from typical 3-zonacolporate grains, C. ameghinoi sometimes has 3-syncolpate or parasyncolpate pollen, while C. cachanlahuen occasionally has 4-colporate grains with short colpi that converge in pairs. C. pulchellum also has 3 or 4-colporate grains, but a high proportion of the pollen grains show a range of different aperture patterns. A total of 13 aperture configurations, including the typical 3-colporate and 4-colporate types, were recorded. The proportion of the different pollen types varied widely between and within individuals. However, the production of atypical grains does not seem to have any notable effect on pollen viability within the species. It is suggested that the wide variation in aperture pattern observed in C. pulchellum may be partially induced by environmental factors.
publishDate 2007
dc.date.none.fl_str_mv 2007-03
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/11336/45129
Pire, Stella Maris; Dematteis, Massimiliano; Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae); Taylor & Francis As; Grana; 46; 1; 3-2007; 1-12
0017-3134
1651-2049
CONICET Digital
CONICET
url http://hdl.handle.net/11336/45129
identifier_str_mv Pire, Stella Maris; Dematteis, Massimiliano; Pollen aperture heteromorphism in Centaurium pulchellum (Gentianaceae); Taylor & Francis As; Grana; 46; 1; 3-2007; 1-12
0017-3134
1651-2049
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/00173130601101245
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/00173130601101245
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
dc.publisher.none.fl_str_mv Taylor & Francis As
publisher.none.fl_str_mv Taylor & Francis As
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
_version_ 1844613309457760256
score 13.070432

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