Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology

Autores
Tellería, María Cristina; Urtubey, Estrella; Katinas, Liliana
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pollen of Proustia (10 specimens examined) and Lophopappus (12 specimens examined) (Asteraceae, Mutisieae) are described as part of an analysis of the classification of these genera. Their exine structure is determined and compared with structures found in other genera of Mutisieae (25 specimens examined and data of other authors), in order to clarify the subtribal position of Proustia and Lophopappus. Pollen of Proustia and Lophopappus have the following characters in common: Grains radially symmetrical and isopolar; tricolporate, long colpi with a microgranulate membrane, endoaperture lalongate with acute or bifurcate equatorial ends; subprolate or prolate-spheroidal; elliptic or spheroidal; polar caps conspicuous or not so distinctive, and exine microechinate. Two types of sexine structure are observed: (1) Trixis type, with two columellate ramified sublayers, the inner sublayer thicker than the outer one (found in Lophopappus berberidifolius, L. tarapacanus, Proustia cuneifolia var. cuneifolia, P. cuneifolia var. mendocina, P. cuneifolia var. mollis, P. ilicifolia var. baccharoides, and P. pyrifolia); and (2) Proustia type, with two equally thick sublayers of ramified columella (found in Lophopappus blakei, L. cuneatus, and L. foliosus). Proustia ilicifolia var. ilicifolia and Lophopappus peruvianus have both types of sexine structure. Pollen analysis of other genera of Mutisieae subtribes Nassauviinae, Mutisiinae and Gochnatiinae demonstrate two new exine types: (1) Ainsliaea type, with two sublayers poorly distinguishable, the exine appearing compact, the outer surface microechinate; and (2) Wunderlichia type, with two well-differentiated sublayers, the outer surface echinate, the spines with apical channels. The results show that: (1) Proustia and Lophopappus cannot be differentiated from each other by pollen characters; (2) the genera of subtribe Nassauviinae can be differentiated from the other two subtribes by having sexine sublayers with similar structure; (3) Proustia and Lophopappus have the pollen exine structural types that are typical of pollen of subtribe Nassauviinae; (4) subtribes Gochnatiinae and Mutisiinae are characterized by having sexine sublayers with different structures; but (5) those two subtribes cannot be differentiated based on pollen characters.
Fil: Tellería, María Cristina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Urtubey, Estrella. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Katinas, Liliana. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Materia
ASTERACEAE
LOPHOPAPPUS
MUTISIEAE
POLLEN
PROUSTIA
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
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Acceder
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network_name_str CONICET Digital (CONICET)
spelling Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphologyTellería, María CristinaUrtubey, EstrellaKatinas, LilianaASTERACEAELOPHOPAPPUSMUTISIEAEPOLLENPROUSTIAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Pollen of Proustia (10 specimens examined) and Lophopappus (12 specimens examined) (Asteraceae, Mutisieae) are described as part of an analysis of the classification of these genera. Their exine structure is determined and compared with structures found in other genera of Mutisieae (25 specimens examined and data of other authors), in order to clarify the subtribal position of Proustia and Lophopappus. Pollen of Proustia and Lophopappus have the following characters in common: Grains radially symmetrical and isopolar; tricolporate, long colpi with a microgranulate membrane, endoaperture lalongate with acute or bifurcate equatorial ends; subprolate or prolate-spheroidal; elliptic or spheroidal; polar caps conspicuous or not so distinctive, and exine microechinate. Two types of sexine structure are observed: (1) Trixis type, with two columellate ramified sublayers, the inner sublayer thicker than the outer one (found in Lophopappus berberidifolius, L. tarapacanus, Proustia cuneifolia var. cuneifolia, P. cuneifolia var. mendocina, P. cuneifolia var. mollis, P. ilicifolia var. baccharoides, and P. pyrifolia); and (2) Proustia type, with two equally thick sublayers of ramified columella (found in Lophopappus blakei, L. cuneatus, and L. foliosus). Proustia ilicifolia var. ilicifolia and Lophopappus peruvianus have both types of sexine structure. Pollen analysis of other genera of Mutisieae subtribes Nassauviinae, Mutisiinae and Gochnatiinae demonstrate two new exine types: (1) Ainsliaea type, with two sublayers poorly distinguishable, the exine appearing compact, the outer surface microechinate; and (2) Wunderlichia type, with two well-differentiated sublayers, the outer surface echinate, the spines with apical channels. The results show that: (1) Proustia and Lophopappus cannot be differentiated from each other by pollen characters; (2) the genera of subtribe Nassauviinae can be differentiated from the other two subtribes by having sexine sublayers with similar structure; (3) Proustia and Lophopappus have the pollen exine structural types that are typical of pollen of subtribe Nassauviinae; (4) subtribes Gochnatiinae and Mutisiinae are characterized by having sexine sublayers with different structures; but (5) those two subtribes cannot be differentiated based on pollen characters.Fil: Tellería, María Cristina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Urtubey, Estrella. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Katinas, Liliana. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaElsevier Science2003-03info: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/11336/148961Tellería, María Cristina; Urtubey, Estrella; Katinas, Liliana; Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology; Elsevier Science; Review of Palaeobotany and Palynology; 123; 3-4; 3-2003; 237-2460034-6667CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666702002270info:eu-repo/semantics/altIdentifier/doi/10.1016/s0034-6667(02)00227-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:44Zoai:ri.conicet.gov.ar:11336/148961instacron: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 09:33:44.372CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
title Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
spellingShingle Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
Tellería, María Cristina
ASTERACEAE
LOPHOPAPPUS
MUTISIEAE
POLLEN
PROUSTIA
title_short Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
title_full Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
title_fullStr Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
title_full_unstemmed Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
title_sort Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology
dc.creator.none.fl_str_mv Tellería, María Cristina
Urtubey, Estrella
Katinas, Liliana
author Tellería, María Cristina
author_facet Tellería, María Cristina
Urtubey, Estrella
Katinas, Liliana
author_role author
author2 Urtubey, Estrella
Katinas, Liliana
author2_role author
author
dc.subject.none.fl_str_mv ASTERACEAE
LOPHOPAPPUS
MUTISIEAE
POLLEN
PROUSTIA
topic ASTERACEAE
LOPHOPAPPUS
MUTISIEAE
POLLEN
PROUSTIA
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 of Proustia (10 specimens examined) and Lophopappus (12 specimens examined) (Asteraceae, Mutisieae) are described as part of an analysis of the classification of these genera. Their exine structure is determined and compared with structures found in other genera of Mutisieae (25 specimens examined and data of other authors), in order to clarify the subtribal position of Proustia and Lophopappus. Pollen of Proustia and Lophopappus have the following characters in common: Grains radially symmetrical and isopolar; tricolporate, long colpi with a microgranulate membrane, endoaperture lalongate with acute or bifurcate equatorial ends; subprolate or prolate-spheroidal; elliptic or spheroidal; polar caps conspicuous or not so distinctive, and exine microechinate. Two types of sexine structure are observed: (1) Trixis type, with two columellate ramified sublayers, the inner sublayer thicker than the outer one (found in Lophopappus berberidifolius, L. tarapacanus, Proustia cuneifolia var. cuneifolia, P. cuneifolia var. mendocina, P. cuneifolia var. mollis, P. ilicifolia var. baccharoides, and P. pyrifolia); and (2) Proustia type, with two equally thick sublayers of ramified columella (found in Lophopappus blakei, L. cuneatus, and L. foliosus). Proustia ilicifolia var. ilicifolia and Lophopappus peruvianus have both types of sexine structure. Pollen analysis of other genera of Mutisieae subtribes Nassauviinae, Mutisiinae and Gochnatiinae demonstrate two new exine types: (1) Ainsliaea type, with two sublayers poorly distinguishable, the exine appearing compact, the outer surface microechinate; and (2) Wunderlichia type, with two well-differentiated sublayers, the outer surface echinate, the spines with apical channels. The results show that: (1) Proustia and Lophopappus cannot be differentiated from each other by pollen characters; (2) the genera of subtribe Nassauviinae can be differentiated from the other two subtribes by having sexine sublayers with similar structure; (3) Proustia and Lophopappus have the pollen exine structural types that are typical of pollen of subtribe Nassauviinae; (4) subtribes Gochnatiinae and Mutisiinae are characterized by having sexine sublayers with different structures; but (5) those two subtribes cannot be differentiated based on pollen characters.
Fil: Tellería, María Cristina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Urtubey, Estrella. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Katinas, Liliana. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
description Pollen of Proustia (10 specimens examined) and Lophopappus (12 specimens examined) (Asteraceae, Mutisieae) are described as part of an analysis of the classification of these genera. Their exine structure is determined and compared with structures found in other genera of Mutisieae (25 specimens examined and data of other authors), in order to clarify the subtribal position of Proustia and Lophopappus. Pollen of Proustia and Lophopappus have the following characters in common: Grains radially symmetrical and isopolar; tricolporate, long colpi with a microgranulate membrane, endoaperture lalongate with acute or bifurcate equatorial ends; subprolate or prolate-spheroidal; elliptic or spheroidal; polar caps conspicuous or not so distinctive, and exine microechinate. Two types of sexine structure are observed: (1) Trixis type, with two columellate ramified sublayers, the inner sublayer thicker than the outer one (found in Lophopappus berberidifolius, L. tarapacanus, Proustia cuneifolia var. cuneifolia, P. cuneifolia var. mendocina, P. cuneifolia var. mollis, P. ilicifolia var. baccharoides, and P. pyrifolia); and (2) Proustia type, with two equally thick sublayers of ramified columella (found in Lophopappus blakei, L. cuneatus, and L. foliosus). Proustia ilicifolia var. ilicifolia and Lophopappus peruvianus have both types of sexine structure. Pollen analysis of other genera of Mutisieae subtribes Nassauviinae, Mutisiinae and Gochnatiinae demonstrate two new exine types: (1) Ainsliaea type, with two sublayers poorly distinguishable, the exine appearing compact, the outer surface microechinate; and (2) Wunderlichia type, with two well-differentiated sublayers, the outer surface echinate, the spines with apical channels. The results show that: (1) Proustia and Lophopappus cannot be differentiated from each other by pollen characters; (2) the genera of subtribe Nassauviinae can be differentiated from the other two subtribes by having sexine sublayers with similar structure; (3) Proustia and Lophopappus have the pollen exine structural types that are typical of pollen of subtribe Nassauviinae; (4) subtribes Gochnatiinae and Mutisiinae are characterized by having sexine sublayers with different structures; but (5) those two subtribes cannot be differentiated based on pollen characters.
publishDate 2003
dc.date.none.fl_str_mv 2003-03
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/11336/148961
Tellería, María Cristina; Urtubey, Estrella; Katinas, Liliana; Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology; Elsevier Science; Review of Palaeobotany and Palynology; 123; 3-4; 3-2003; 237-246
0034-6667
CONICET Digital
CONICET
url http://hdl.handle.net/11336/148961
identifier_str_mv Tellería, María Cristina; Urtubey, Estrella; Katinas, Liliana; Proustia and Lophopappus (Asteraceae, Mutisieae): Generic and subtribal relationships based on pollen morphology; Elsevier Science; Review of Palaeobotany and Palynology; 123; 3-4; 3-2003; 237-246
0034-6667
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1016/s0034-6667(02)00227-0
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 Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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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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