Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)

Pollen grains of ten species of Campuloclinium (Eupatorieae, Asteraceae) are described and illustrated using light and scanning electron microscopy. The species included in this study are C. burchelli, C. campuloclinioides, C. chlorolepis, C. hirsutum, C. irwinii, C. macrocephalum, C. megacephalum,...

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Autores principales: Farco, Gabriela Elizabeth, Dematteis, Massimiliano
Formato: Artículo
Lenguaje:Inglés
Publicado: Taylor & Francis As 2021
Materias:
Exine
Polyploidy
Colporate
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/28240
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-28240
record_format dspace
spelling I48-R184-123456789-282402025-03-06T11:00:13Z Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae) Farco, Gabriela Elizabeth Dematteis, Massimiliano Exine Polyploidy Colporate Pollen grains of ten species of Campuloclinium (Eupatorieae, Asteraceae) are described and illustrated using light and scanning electron microscopy. The species included in this study are C. burchelli, C. campuloclinioides, C. chlorolepis, C. hirsutum, C. irwinii, C. macrocephalum, C. megacephalum, C. parvulum, C. purpurascens and C. riedelli. Pollen grains of Campuloclinium are typically radially symmetric, echinate, tectate, oblate-spheroidal to prolate-spheroidal (P/E ratio: 0.94– 1.10). Pollen is mostly triaperturate, but tetraaperturate or biaperturate pollen also occurs in some species. The pollen diameter was highly variable ranging from 10.54 µm to 36.18 μm. The significance of the variation in type and size of pollen is discussed in relation to diverse meiotic abnormalities and possible reproductive apomictic processes within the polyploid species. 2021-07-05T16:30:33Z 2021-07-05T16:30:33Z 2017 Artículo Farco, Gabriela Elizabeth y Dematteis, Massimiliano, 2017. Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae). Grana. Londres: Taylor & Francis As, vol. 56, no. 5, p. 339-350. ISSN 1651-2049. 0017-3134 http://repositorio.unne.edu.ar/handle/123456789/28240 eng openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Taylor & Francis As Grana, 2017, vol. 56, no. 5, p. 339-350.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Exine
Polyploidy
Colporate
spellingShingle Exine
Polyploidy
Colporate
Farco, Gabriela Elizabeth
Dematteis, Massimiliano
Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)
topic_facet Exine
Polyploidy
Colporate
description Pollen grains of ten species of Campuloclinium (Eupatorieae, Asteraceae) are described and illustrated using light and scanning electron microscopy. The species included in this study are C. burchelli, C. campuloclinioides, C. chlorolepis, C. hirsutum, C. irwinii, C. macrocephalum, C. megacephalum, C. parvulum, C. purpurascens and C. riedelli. Pollen grains of Campuloclinium are typically radially symmetric, echinate, tectate, oblate-spheroidal to prolate-spheroidal (P/E ratio: 0.94– 1.10). Pollen is mostly triaperturate, but tetraaperturate or biaperturate pollen also occurs in some species. The pollen diameter was highly variable ranging from 10.54 µm to 36.18 μm. The significance of the variation in type and size of pollen is discussed in relation to diverse meiotic abnormalities and possible reproductive apomictic processes within the polyploid species.
format Artículo
author Farco, Gabriela Elizabeth
Dematteis, Massimiliano
author_facet Farco, Gabriela Elizabeth
Dematteis, Massimiliano
author_sort Farco, Gabriela Elizabeth
title Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)
title_short Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)
title_full Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)
title_fullStr Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)
title_full_unstemmed Pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)
title_sort pollen morphology and its relation with meiotic irregularities in ten species of campuloclinium (eupatorieae, asteraceae)
publisher Taylor & Francis As
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/28240
work_keys_str_mv AT farcogabrielaelizabeth pollenmorphologyanditsrelationwithmeioticirregularitiesintenspeciesofcampulocliniumeupatorieaeasteraceae
AT dematteismassimiliano pollenmorphologyanditsrelationwithmeioticirregularitiesintenspeciesofcampulocliniumeupatorieaeasteraceae
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