The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae)
- Autores
- Tellería, María Cristina; Katinas, Liliana
- Año de publicación
- 2005
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The monotypic genus Hecastocleis and species of Ainsliaea DC. (Asteraceae, Mutisieae) have tricolpate pollen, which is unusual in Asteraceae. The pollen morphology of H. shockleyi and species of Ainsliaea were studied with light microscope and scanning electron microscope. Pollen of H. shockleyi and some species of Ainsliaea have tricolpate aperture but differ in size and exine features. The pollen of Ainsliaea is bigger than that of Hecastocleis, and has more conspicuous microspines, a Mutisia- or an Ainsliaea-exine type, and is slightly thickened at the poles. The pollen of H. shockleyi is scabrate-microechinate with small puncta, and has the Mutisia-exine type, which is regularly thickened over the complete grain. The occurrence of tricolpate pollen supports previous studies that Hecastocleis and Ainsliaea stand apart from other genera of Mutisieae, but the occurrence of Mutisia-exine type does not suggest complete independence of the tribe.
Facultad de Ciencias Naturales y Museo - Materia
-
Ciencias Naturales
tricolpate pollen
Mutisieae - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/84421
Ver los metadatos del registro completo
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The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae)Tellería, María CristinaKatinas, LilianaCiencias Naturalestricolpate pollenMutisieaeThe monotypic genus <i>Hecastocleis</i> and species of <i>Ainsliaea</i> DC. (Asteraceae, Mutisieae) have tricolpate pollen, which is unusual in Asteraceae. The pollen morphology of <i>H. shockleyi</i> and species of <i>Ainsliaea</i> were studied with light microscope and scanning electron microscope. Pollen of <i>H. shockleyi</i> and some species of <i>Ainsliaea</i> have tricolpate aperture but differ in size and exine features. The pollen of Ainsliaea is bigger than that of <i>Hecastocleis</i>, and has more conspicuous microspines, a <i>Mutisia</i>- or an <i>Ainsliaea</i>-exine type, and is slightly thickened at the poles. The pollen of <i>H. shockleyi</i> is scabrate-microechinate with small puncta, and has the <i>Mutisia</i>-exine type, which is regularly thickened over the complete grain. The occurrence of tricolpate pollen supports previous studies that <i>Hecastocleis</i> and <i>Ainsliaea</i> stand apart from other genera of Mutisieae, but the occurrence of <i>Mutisia</i>-exine type does not suggest complete independence of the tribe.Facultad de Ciencias Naturales y Museo2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf91-97http://sedici.unlp.edu.ar/handle/10915/84421enginfo:eu-repo/semantics/altIdentifier/issn/0017-3134info:eu-repo/semantics/altIdentifier/doi/10.1080/00173130510010495info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:48:32Zoai:sedici.unlp.edu.ar:10915/84421Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:48:32.322SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) |
| title |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) |
| spellingShingle |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) Tellería, María Cristina Ciencias Naturales tricolpate pollen Mutisieae |
| title_short |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) |
| title_full |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) |
| title_fullStr |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) |
| title_full_unstemmed |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) |
| title_sort |
The unusual occurrence of tricolpate pollen within Mutisieae (Asteraceae) |
| dc.creator.none.fl_str_mv |
Tellería, María Cristina Katinas, Liliana |
| author |
Tellería, María Cristina |
| author_facet |
Tellería, María Cristina Katinas, Liliana |
| author_role |
author |
| author2 |
Katinas, Liliana |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Ciencias Naturales tricolpate pollen Mutisieae |
| topic |
Ciencias Naturales tricolpate pollen Mutisieae |
| dc.description.none.fl_txt_mv |
The monotypic genus <i>Hecastocleis</i> and species of <i>Ainsliaea</i> DC. (Asteraceae, Mutisieae) have tricolpate pollen, which is unusual in Asteraceae. The pollen morphology of <i>H. shockleyi</i> and species of <i>Ainsliaea</i> were studied with light microscope and scanning electron microscope. Pollen of <i>H. shockleyi</i> and some species of <i>Ainsliaea</i> have tricolpate aperture but differ in size and exine features. The pollen of Ainsliaea is bigger than that of <i>Hecastocleis</i>, and has more conspicuous microspines, a <i>Mutisia</i>- or an <i>Ainsliaea</i>-exine type, and is slightly thickened at the poles. The pollen of <i>H. shockleyi</i> is scabrate-microechinate with small puncta, and has the <i>Mutisia</i>-exine type, which is regularly thickened over the complete grain. The occurrence of tricolpate pollen supports previous studies that <i>Hecastocleis</i> and <i>Ainsliaea</i> stand apart from other genera of Mutisieae, but the occurrence of <i>Mutisia</i>-exine type does not suggest complete independence of the tribe. Facultad de Ciencias Naturales y Museo |
| description |
The monotypic genus <i>Hecastocleis</i> and species of <i>Ainsliaea</i> DC. (Asteraceae, Mutisieae) have tricolpate pollen, which is unusual in Asteraceae. The pollen morphology of <i>H. shockleyi</i> and species of <i>Ainsliaea</i> were studied with light microscope and scanning electron microscope. Pollen of <i>H. shockleyi</i> and some species of <i>Ainsliaea</i> have tricolpate aperture but differ in size and exine features. The pollen of Ainsliaea is bigger than that of <i>Hecastocleis</i>, and has more conspicuous microspines, a <i>Mutisia</i>- or an <i>Ainsliaea</i>-exine type, and is slightly thickened at the poles. The pollen of <i>H. shockleyi</i> is scabrate-microechinate with small puncta, and has the <i>Mutisia</i>-exine type, which is regularly thickened over the complete grain. The occurrence of tricolpate pollen supports previous studies that <i>Hecastocleis</i> and <i>Ainsliaea</i> stand apart from other genera of Mutisieae, but the occurrence of <i>Mutisia</i>-exine type does not suggest complete independence of the tribe. |
| publishDate |
2005 |
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2005 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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http://sedici.unlp.edu.ar/handle/10915/84421 |
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eng |
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