Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)

Autores
Passarelli, Lilian; Rolleri, Cristina Hilda
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The massulae and pollen grains in pollinia of four palustrine South American species of Habenaria, H. bractescens, H. gourlieana,H. paucifolia and H. secunda were studied here for the first time using light, scanning, and transmission electronic microscopy.The pollinia have acalymmate, piriform or tabular massulae. Filiform elastoviscin threads are formed between the pollen grains of pollinia, allowing them to stick together. The pollen grains are inaperturate, grouped into calymmate tetrads, and have reticulate or reticulum-like, heterobrochate exine. Reticulate ornamentation consists of irregular, rounded,wide or narrow, continuous muri, while reticulum-like ornamentation is formed by discontinuous, partial muri, superficially smooth or with spherical micro-granules, intermingling with some isolated elements that can be interpreted as pila.The wall structure of individual pollen grains differs according to their position in the tetrads: outside walls develop complete exine and intine, with columellae, while the walls inside the pollinium lack exine or develop only a much reduced one. Palynological characters differentiate the species: pyriform massulae, triangular in outline, occur in H. gourlieana, H. paucifolia and H. secunda, while tabular massulae, oblong in outline, characterise H. bractescens. Ornamentation also distinguishes H. gourlieana grains, with interrupted, discontinuous muri, from the other three species, bearing reticulate grains. Elastoviscin filiform threads, which were found to be lipidic in nature, are simple or ramified, and some bear pores(in H. bractescens). Branched filiform threads characterise H. bractescens and H. secunda, while unbranched, filiform threadscorrespond to H. gourlieana and H. paucifolia.
Fil: Passarelli, Lilian. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Estudios de Anatomía Vegetal Evolutiva y Sistemática; Argentina
Fil: Rolleri, Cristina Hilda. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Estudios de Anatomía Vegetal Evolutiva y Sistemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Materia
POLLINIA
HABENARIA
ORCHIDACEAE
VISCIN THREADS
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:11336/279959
Acceder
id CONICETDig_ad91cd41d76e8f5d5a7197e5d16906c3
oai_identifier_str oai:ri.conicet.gov.ar:11336/279959
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)Passarelli, LilianRolleri, Cristina HildaPOLLINIAHABENARIAORCHIDACEAEVISCIN THREADShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The massulae and pollen grains in pollinia of four palustrine South American species of Habenaria, H. bractescens, H. gourlieana,H. paucifolia and H. secunda were studied here for the first time using light, scanning, and transmission electronic microscopy.The pollinia have acalymmate, piriform or tabular massulae. Filiform elastoviscin threads are formed between the pollen grains of pollinia, allowing them to stick together. The pollen grains are inaperturate, grouped into calymmate tetrads, and have reticulate or reticulum-like, heterobrochate exine. Reticulate ornamentation consists of irregular, rounded,wide or narrow, continuous muri, while reticulum-like ornamentation is formed by discontinuous, partial muri, superficially smooth or with spherical micro-granules, intermingling with some isolated elements that can be interpreted as pila.The wall structure of individual pollen grains differs according to their position in the tetrads: outside walls develop complete exine and intine, with columellae, while the walls inside the pollinium lack exine or develop only a much reduced one. Palynological characters differentiate the species: pyriform massulae, triangular in outline, occur in H. gourlieana, H. paucifolia and H. secunda, while tabular massulae, oblong in outline, characterise H. bractescens. Ornamentation also distinguishes H. gourlieana grains, with interrupted, discontinuous muri, from the other three species, bearing reticulate grains. Elastoviscin filiform threads, which were found to be lipidic in nature, are simple or ramified, and some bear pores(in H. bractescens). Branched filiform threads characterise H. bractescens and H. secunda, while unbranched, filiform threadscorrespond to H. gourlieana and H. paucifolia.Fil: Passarelli, Lilian. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Estudios de Anatomía Vegetal Evolutiva y Sistemática; ArgentinaFil: Rolleri, Cristina Hilda. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Estudios de Anatomía Vegetal Evolutiva y Sistemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaTaylor & Francis As2010-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/279959Passarelli, Lilian; Rolleri, Cristina Hilda; Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae); Taylor & Francis As; Grana; 49; 1; 10-2010; 47-550017-3134CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/00173130903484869info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:30:00Zoai:ri.conicet.gov.ar:11336/279959instacron: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:34982026-02-26 10:30:00.548CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
title Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
spellingShingle Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
Passarelli, Lilian
POLLINIA
HABENARIA
ORCHIDACEAE
VISCIN THREADS
title_short Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
title_full Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
title_fullStr Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
title_full_unstemmed Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
title_sort Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae)
dc.creator.none.fl_str_mv Passarelli, Lilian
Rolleri, Cristina Hilda
author Passarelli, Lilian
author_facet Passarelli, Lilian
Rolleri, Cristina Hilda
author_role author
author2 Rolleri, Cristina Hilda
author2_role author
dc.subject.none.fl_str_mv POLLINIA
HABENARIA
ORCHIDACEAE
VISCIN THREADS
topic POLLINIA
HABENARIA
ORCHIDACEAE
VISCIN THREADS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The massulae and pollen grains in pollinia of four palustrine South American species of Habenaria, H. bractescens, H. gourlieana,H. paucifolia and H. secunda were studied here for the first time using light, scanning, and transmission electronic microscopy.The pollinia have acalymmate, piriform or tabular massulae. Filiform elastoviscin threads are formed between the pollen grains of pollinia, allowing them to stick together. The pollen grains are inaperturate, grouped into calymmate tetrads, and have reticulate or reticulum-like, heterobrochate exine. Reticulate ornamentation consists of irregular, rounded,wide or narrow, continuous muri, while reticulum-like ornamentation is formed by discontinuous, partial muri, superficially smooth or with spherical micro-granules, intermingling with some isolated elements that can be interpreted as pila.The wall structure of individual pollen grains differs according to their position in the tetrads: outside walls develop complete exine and intine, with columellae, while the walls inside the pollinium lack exine or develop only a much reduced one. Palynological characters differentiate the species: pyriform massulae, triangular in outline, occur in H. gourlieana, H. paucifolia and H. secunda, while tabular massulae, oblong in outline, characterise H. bractescens. Ornamentation also distinguishes H. gourlieana grains, with interrupted, discontinuous muri, from the other three species, bearing reticulate grains. Elastoviscin filiform threads, which were found to be lipidic in nature, are simple or ramified, and some bear pores(in H. bractescens). Branched filiform threads characterise H. bractescens and H. secunda, while unbranched, filiform threadscorrespond to H. gourlieana and H. paucifolia.
Fil: Passarelli, Lilian. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Estudios de Anatomía Vegetal Evolutiva y Sistemática; Argentina
Fil: Rolleri, Cristina Hilda. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Estudios de Anatomía Vegetal Evolutiva y Sistemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
description The massulae and pollen grains in pollinia of four palustrine South American species of Habenaria, H. bractescens, H. gourlieana,H. paucifolia and H. secunda were studied here for the first time using light, scanning, and transmission electronic microscopy.The pollinia have acalymmate, piriform or tabular massulae. Filiform elastoviscin threads are formed between the pollen grains of pollinia, allowing them to stick together. The pollen grains are inaperturate, grouped into calymmate tetrads, and have reticulate or reticulum-like, heterobrochate exine. Reticulate ornamentation consists of irregular, rounded,wide or narrow, continuous muri, while reticulum-like ornamentation is formed by discontinuous, partial muri, superficially smooth or with spherical micro-granules, intermingling with some isolated elements that can be interpreted as pila.The wall structure of individual pollen grains differs according to their position in the tetrads: outside walls develop complete exine and intine, with columellae, while the walls inside the pollinium lack exine or develop only a much reduced one. Palynological characters differentiate the species: pyriform massulae, triangular in outline, occur in H. gourlieana, H. paucifolia and H. secunda, while tabular massulae, oblong in outline, characterise H. bractescens. Ornamentation also distinguishes H. gourlieana grains, with interrupted, discontinuous muri, from the other three species, bearing reticulate grains. Elastoviscin filiform threads, which were found to be lipidic in nature, are simple or ramified, and some bear pores(in H. bractescens). Branched filiform threads characterise H. bractescens and H. secunda, while unbranched, filiform threadscorrespond to H. gourlieana and H. paucifolia.
publishDate 2010
dc.date.none.fl_str_mv 2010-10
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/11336/279959
Passarelli, Lilian; Rolleri, Cristina Hilda; Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae); Taylor & Francis As; Grana; 49; 1; 10-2010; 47-55
0017-3134
CONICET Digital
CONICET
url http://hdl.handle.net/11336/279959
identifier_str_mv Passarelli, Lilian; Rolleri, Cristina Hilda; Pollen grains and massulae in pollinia of four South American palustrine species of Habenaria (Orchidaceae); Taylor & Francis As; Grana; 49; 1; 10-2010; 47-55
0017-3134
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/00173130903484869
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
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_ 1858306017496924160
score 12.665996

Publicaciones similares