Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)

The structural details of the gynoecium are key to understanding the reproductive systems and successful diversification of flowering plants. However, the gynoecium morpho-anatomy in South American species of Cactaceae that evolved in the Andean region remains largely unknown. Here we selected 18...

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Autores principales: González, Valeria Vanesa, Zini, Lucía Melisa, Ferrucci, María Silvia, Ortega Baes, Francisco Pablo
Formato: Artículo
Lenguaje:Inglés
Publicado: Wiley Blackwell Publishing, Inc 2025
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/59951
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RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-59951
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spelling I48-R184-123456789-599512025-12-15T15:09:14Z Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae) González, Valeria Vanesa Zini, Lucía Melisa Ferrucci, María Silvia Ortega Baes, Francisco Pablo The structural details of the gynoecium are key to understanding the reproductive systems and successful diversification of flowering plants. However, the gynoecium morpho-anatomy in South American species of Cactaceae that evolved in the Andean region remains largely unknown. Here we selected 18 species, most of them of evolutionarily related genera of Cactaceae tribe Trichocereeae, to conduct a detailed comparative study. Observations were made using light, fluorescence, differential interference contrast and scanning electron microscopy. Most of the characters of the ovary and ovule were typical of the family, except for the nucellar beak in Echinopsis aurea and E. haematantha, here reported for the first time in cacti. We found evidence suggesting that the stigmatic surface covered with multiseriate trichomes, the semi-closed style type and the pollen tube transmitting tract are conserved characters among species of Trichocereeae; this finding may be explained by a phylogenetic conservatism of the investigated genera of the tribe. We integrated the available information about structural and histological characters of the gynoecium in the family, taking into account the current phylogenetic context of the examined genera. Our results reinforce the significance of floral anatomical traits for the systematics of Cactaceae. 2025-12-15T14:21:33Z 2025-12-15T14:21:33Z 2023 Artículo González, Valeria Vanesa, et al., 2023. Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae). Reino Unido: Wiley Blackwell Publishing, Inc, vol. 202, no. 2, p. 166-180. E-ISSN 1095-8339. 0024-4074 http://repositorio.unne.edu.ar/handle/123456789/59951 eng https://academic.oup.com/botlinnean/article/202/2/166/7060189 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 166-180 application/pdf Wiley Blackwell Publishing, Inc Botanical Journal of the Linnean Society, 2023, vol. 202, no. 2, p. 166-180.
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
description The structural details of the gynoecium are key to understanding the reproductive systems and successful diversification of flowering plants. However, the gynoecium morpho-anatomy in South American species of Cactaceae that evolved in the Andean region remains largely unknown. Here we selected 18 species, most of them of evolutionarily related genera of Cactaceae tribe Trichocereeae, to conduct a detailed comparative study. Observations were made using light, fluorescence, differential interference contrast and scanning electron microscopy. Most of the characters of the ovary and ovule were typical of the family, except for the nucellar beak in Echinopsis aurea and E. haematantha, here reported for the first time in cacti. We found evidence suggesting that the stigmatic surface covered with multiseriate trichomes, the semi-closed style type and the pollen tube transmitting tract are conserved characters among species of Trichocereeae; this finding may be explained by a phylogenetic conservatism of the investigated genera of the tribe. We integrated the available information about structural and histological characters of the gynoecium in the family, taking into account the current phylogenetic context of the examined genera. Our results reinforce the significance of floral anatomical traits for the systematics of Cactaceae.
format Artículo
author González, Valeria Vanesa
Zini, Lucía Melisa
Ferrucci, María Silvia
Ortega Baes, Francisco Pablo
spellingShingle González, Valeria Vanesa
Zini, Lucía Melisa
Ferrucci, María Silvia
Ortega Baes, Francisco Pablo
Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)
author_facet González, Valeria Vanesa
Zini, Lucía Melisa
Ferrucci, María Silvia
Ortega Baes, Francisco Pablo
author_sort González, Valeria Vanesa
title Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)
title_short Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)
title_full Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)
title_fullStr Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)
title_full_unstemmed Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)
title_sort gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe trichocereeae (cactaceae: cactoideae)
publisher Wiley Blackwell Publishing, Inc
publishDate 2025
url http://repositorio.unne.edu.ar/handle/123456789/59951
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