A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae)

In the present work, we study the ovule, seed, and fruit development in six Bulbostylis species in order to characterize the genus in a comparative approach and to identify the characteristics that can be used in taxonomy and phylogeny. Flowers and fruits at diferent developmental stages were an...

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Detalles Bibliográficos
Autores principales: Reutemann, Andrea Guadalupe, Muchut, Sebastián Elías, Uberti Manassero, Nora Graciela, Laforga Vanzela, André Luís, López, María Gabriela, Vegetti, Abelardo Carlos, González, Ana María
Formato: Artículo
Lenguaje:Inglés
Publicado: Springer Verlag GmbH 2024
Materias:
Achene
Anatomy
Development
Embryology
Polyembryony
Reproductive structures
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/55297
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-55297
record_format dspace
spelling I48-R184-123456789-552972024-10-07T10:35:00Z A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae) Reutemann, Andrea Guadalupe Muchut, Sebastián Elías Uberti Manassero, Nora Graciela Laforga Vanzela, André Luís López, María Gabriela Vegetti, Abelardo Carlos González, Ana María Achene Anatomy Development Embryology Polyembryony Reproductive structures In the present work, we study the ovule, seed, and fruit development in six Bulbostylis species in order to characterize the genus in a comparative approach and to identify the characteristics that can be used in taxonomy and phylogeny. Flowers and fruits at diferent developmental stages were analyzed using LM and SEM after processing according to standard tech- niques. The species studied have the following: anatropous and bitegmic ovules, weak crassinucellar ovules, obturator of integumentary origin, monosporic embryo sac of the Polygonum type, nuclear endosperm, hypostase formation, seed coat formed by tanniferous endotegmen and exotesta, and Bulbostylis-type embryo. On the other hand, the pericarp development constitutes the main variation within Bulbostylis since the cells of the exocarp may or may not present starch grains, and their inner periclinal walls may be slightly or deeply concave depending on the degree of development of the mesocarp sclereids. In a taxonomic context, the results herein obtained are in confict with studies which suggest infrageneric groupings based on fruit micromorphology, and also with the relationship among the Bulbostylis species based on molecular analysis. This work contributes to a better understanding of the reproductive anatomy and embryology in Bulbostylis, and reveals the frst insights about the origin of multiple embryos in Cyperaceae. Given the frequent presence of polyembryony in Bulbostylis, and the poor mention of this condition in the family, this work highlights an aspect in the anatomy of Cyperaceae that must be re-explored. 2024-09-12T11:46:25Z 2024-09-12T11:46:25Z 2022-01 Artículo Reutemann, Andrea Guadalupe, et al., 2022. A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae: Cyperoideae: Abildgaardieae). En: Protoplasma. Viena: Springer Verlag GmbH, vol. 259, no. 1, p. 141-153. E-ISSN 0033-183X. DOI: https://doi.org/10.1007/s00709-021-01649-7. 1615-6102 http://repositorio.unne.edu.ar/handle/123456789/55297 eng https://doi.org/10.1007/s00709-021-01649-7 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 141-153 application/pdf Springer Verlag GmbH Protoplasma, 2022, vol. 259, no. 1, p. 141-153.
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 Achene
Anatomy
Development
Embryology
Polyembryony
Reproductive structures
spellingShingle Achene
Anatomy
Development
Embryology
Polyembryony
Reproductive structures
Reutemann, Andrea Guadalupe
Muchut, Sebastián Elías
Uberti Manassero, Nora Graciela
Laforga Vanzela, André Luís
López, María Gabriela
Vegetti, Abelardo Carlos
González, Ana María
A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae)
topic_facet Achene
Anatomy
Development
Embryology
Polyembryony
Reproductive structures
description In the present work, we study the ovule, seed, and fruit development in six Bulbostylis species in order to characterize the genus in a comparative approach and to identify the characteristics that can be used in taxonomy and phylogeny. Flowers and fruits at diferent developmental stages were analyzed using LM and SEM after processing according to standard tech- niques. The species studied have the following: anatropous and bitegmic ovules, weak crassinucellar ovules, obturator of integumentary origin, monosporic embryo sac of the Polygonum type, nuclear endosperm, hypostase formation, seed coat formed by tanniferous endotegmen and exotesta, and Bulbostylis-type embryo. On the other hand, the pericarp development constitutes the main variation within Bulbostylis since the cells of the exocarp may or may not present starch grains, and their inner periclinal walls may be slightly or deeply concave depending on the degree of development of the mesocarp sclereids. In a taxonomic context, the results herein obtained are in confict with studies which suggest infrageneric groupings based on fruit micromorphology, and also with the relationship among the Bulbostylis species based on molecular analysis. This work contributes to a better understanding of the reproductive anatomy and embryology in Bulbostylis, and reveals the frst insights about the origin of multiple embryos in Cyperaceae. Given the frequent presence of polyembryony in Bulbostylis, and the poor mention of this condition in the family, this work highlights an aspect in the anatomy of Cyperaceae that must be re-explored.
format Artículo
author Reutemann, Andrea Guadalupe
Muchut, Sebastián Elías
Uberti Manassero, Nora Graciela
Laforga Vanzela, André Luís
López, María Gabriela
Vegetti, Abelardo Carlos
González, Ana María
author_facet Reutemann, Andrea Guadalupe
Muchut, Sebastián Elías
Uberti Manassero, Nora Graciela
Laforga Vanzela, André Luís
López, María Gabriela
Vegetti, Abelardo Carlos
González, Ana María
author_sort Reutemann, Andrea Guadalupe
title A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae)
title_short A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae)
title_full A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae)
title_fullStr A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae)
title_full_unstemmed A comparative approach to understanding the ovule, seed, and fruit development in Bulbostylis (Cyperaceae : Cyperoideae : Abildgaardieae)
title_sort comparative approach to understanding the ovule, seed, and fruit development in bulbostylis (cyperaceae : cyperoideae : abildgaardieae)
publisher Springer Verlag GmbH
publishDate 2024
url http://repositorio.unne.edu.ar/handle/123456789/55297
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