Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination.

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Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination. Wind pollination in Asteraceae is well documented only in few tribes.Particularly, in Eupatorieae, apparent anemophily has only been reported in 10 species belonging to the genera Crit...

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Autores principales: Grossi, Mariana A., Gutiérrez, Diego G., Marquéz, Gonzalo J., Luna, María Luján
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2017
Materias:
Acanthostyles
anemofilia
Austroeupatorium
Eupatorieae
América del Sur.
anemophily
South America.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/16913
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10-article-16913
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spelling I10-R10-article-169132019-12-14T13:47:56Z Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination. Caracteres florales y palinológicos en Acanthostyles (Asteraceae, Eupatorieae) y su relación con la polinización. Grossi, Mariana A. Gutiérrez, Diego G. Marquéz, Gonzalo J. Luna, María Luján Acanthostyles anemofilia Austroeupatorium Eupatorieae América del Sur. Acanthostyles anemophily Austroeupatorium Eupatorieae South America. Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination. Wind pollination in Asteraceae is well documented only in few tribes.Particularly, in Eupatorieae, apparent anemophily has only been reported in 10 species belonging to the genera Critonia, Decachaeta, Eupatorium, Koanophyllon, and Neohintonia, most of which inhabit North and Central America, with only two species from South America. The genus Acanthostyles has only one species, Acanthostyles buniifolius, which is widely distributed in southern South America. This species shows features that may suggest a pollination mechanism mediated by wind. We analyzed in detail somemorphological and palynological traits related to the anemophilous syndrome. As a result, we identified some characters of A. buniifolius associated to wind pollination: presence of loose and pendulous secondary inflorescence with mainly downward oriented small heads, increased of proportion of stigmaticarea in relation to the total length of the style branch, acicular style sweeping laxly arranged and widecaveate, microechinate (= subechinate) pollen. This paper proposes first evidence of possible anemophily for a species of subtribe Dysinaphiinae within the Eupatorieae tribe. La polinización por el viento en la familia Asteraceae se encuentra documentada en unas pocas tribus. Particularmente en Eupatorieae, sólo se ha reportado aparente anemofilia en 10 especies pertenecientes a los géneros Critonia, Decachaeta, Eupatorium, Koanophyllon y Neohintonia, la mayoría de las cuales crece en América del Norte y Central, con sólo dos especies que alcanzan América del sur. El género Acanthostyles incluye una única especie, Acanthostyles buniifolius, la cual se encuentra ampliamente distribuida en el sur de América del Sur. Esta especie presenta características que sugieren un mecanismo de polinización mediado por el viento. Analizamos en detalle algunos caracteres morfológicos y palinológicos relacionados con el síndrome anemófilo. Como resultado, identificamos algunos atributos asociados con la polinización por el viento: inflorescencia laxa y péndula con capítulospequeños orientados principalmente hacia abajo, estilo con mayor proporción de área estigmática en relación al largo total de la rama del estilo, pelos barredores del estilo aciculares dispuestos laxamente y polen con amplio cavus, microequinado (=subequinado). Este trabajo aporta las primeras evidenciasde la posible anemofilia para una especie de la subtribu Dysinaphiinae, dentro de la tribu Eupatorieae. Sociedad Argentina de Botánica 2017-05-11 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/16913 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 52 No. 1 (2017): March; 107-119 Boletín de la Sociedad Argentina de Botánica; Vol. 52 Núm. 1 (2017): Marzo; 107-119 Boletín de la Sociedad Argentina de Botánica; v. 52 n. 1 (2017): Marzo; 107-119 1851-2372 0373-580X 10.31055/1851.2372.v52.n1 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/16913/16586 Derechos de autor 2017 Boletín de la Sociedad Argentina de Botánica
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Español
format Artículo revista
topic Acanthostyles
anemofilia
Austroeupatorium
Eupatorieae
América del Sur.
Acanthostyles
anemophily
Austroeupatorium
Eupatorieae
South America.
spellingShingle Acanthostyles
anemofilia
Austroeupatorium
Eupatorieae
América del Sur.
Acanthostyles
anemophily
Austroeupatorium
Eupatorieae
South America.
Grossi, Mariana A.
Gutiérrez, Diego G.
Marquéz, Gonzalo J.
Luna, María Luján
Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination.
topic_facet Acanthostyles
anemofilia
Austroeupatorium
Eupatorieae
América del Sur.
Acanthostyles
anemophily
Austroeupatorium
Eupatorieae
South America.
author Grossi, Mariana A.
Gutiérrez, Diego G.
Marquéz, Gonzalo J.
Luna, María Luján
author_facet Grossi, Mariana A.
Gutiérrez, Diego G.
Marquéz, Gonzalo J.
Luna, María Luján
author_sort Grossi, Mariana A.
title Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination.
title_short Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination.
title_full Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination.
title_fullStr Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination.
title_full_unstemmed Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination.
title_sort floral and palinological characters in acanthostyles (asteraceae, eupatorieae) and its relationship to pollination.
description Floral and palinological characters in Acanthostyles (Asteraceae, Eupatorieae) and its relationship to pollination. Wind pollination in Asteraceae is well documented only in few tribes.Particularly, in Eupatorieae, apparent anemophily has only been reported in 10 species belonging to the genera Critonia, Decachaeta, Eupatorium, Koanophyllon, and Neohintonia, most of which inhabit North and Central America, with only two species from South America. The genus Acanthostyles has only one species, Acanthostyles buniifolius, which is widely distributed in southern South America. This species shows features that may suggest a pollination mechanism mediated by wind. We analyzed in detail somemorphological and palynological traits related to the anemophilous syndrome. As a result, we identified some characters of A. buniifolius associated to wind pollination: presence of loose and pendulous secondary inflorescence with mainly downward oriented small heads, increased of proportion of stigmaticarea in relation to the total length of the style branch, acicular style sweeping laxly arranged and widecaveate, microechinate (= subechinate) pollen. This paper proposes first evidence of possible anemophily for a species of subtribe Dysinaphiinae within the Eupatorieae tribe.
publisher Sociedad Argentina de Botánica
publishDate 2017
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/16913
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first_indexed 2022-08-20T01:20:46Z
last_indexed 2022-08-20T01:20:46Z
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