Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)

The genus Oldenlandia (Rubiaceae) has a conflicting generic delimitation, with representatives that show diff erent floral syndromes. Oldenlandia salzmannii is a marshy herb that is widespread in South America. It is heterostylous, specifi cally distylous, and self-compatible. Recent molecular phylo...

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Autores principales:	Núñez Florentín, Mariela, Cabaña Fader, Andrea Alejandra, González, Ana María
Formato:	Artículo
Lenguaje:	Inglés
Publicado:	Sociedade Botânica do Brasil 2021
Materias:	Floral anatomy Heterostyly Oldenlandia salzmannii Ovule development Spermacoceae
Acceso en línea:	http://repositorio.unne.edu.ar/handle/123456789/28523
Aporte de:	RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste

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spelling	I48-R184-123456789-285232025-10-20T12:56:35Z Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae) Núñez Florentín, Mariela Cabaña Fader, Andrea Alejandra González, Ana María Floral anatomy Heterostyly Oldenlandia salzmannii Ovule development Spermacoceae The genus Oldenlandia (Rubiaceae) has a conflicting generic delimitation, with representatives that show diff erent floral syndromes. Oldenlandia salzmannii is a marshy herb that is widespread in South America. It is heterostylous, specifi cally distylous, and self-compatible. Recent molecular phylogenetic studies found that this species forms a clade that is isolated from the remaining described taxa of Oldenlandia. Information about the floral anatomy and reproductive biology of genera in the Spermacoceae tribe, particularly Oldenlandia, is insuffi cient, especially among the neotropical species. Accordingly, the present study aimed at contributing information on the reproductive biology of Oldenlandia salzmannii by analyzing its floral morpho-anatomy, morphometrics and phenology of both floral morphs. These analyses were conducted with natural, cultivated and fi xed material using optical and scanning electron microscopes. Morphologically, the species is typically heterostylous with two fl oral morphs, long-styled and short-styled, the main diff erence being the indument of the corolla. Th e short-styled fl owers have larger anthers and pollen grains. Morphometrics show a high degree of herkogamic reciprocity. Th e mature ovules have a hemitropous position, which is the fi rst record of this position for the Spermacoceae tribe. This study represents the fi rst comprehensive morphological study of Oldenlandia salzmannii. 2021-09-01T11:39:39Z 2021-09-01T11:39:39Z 2016 Artículo Núñez Florentín, Mariela, Cabaña Fader, Andrea Alejandra y González, Ana María, 2016. Morpho-anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae). Acta Botanica Brasilica. Brasil: Sociedade Botânica do Brasil, vol. 30, no. 4, p. 585-601. ISSN 0102-3306. 0102-3306 http://repositorio.unne.edu.ar/handle/123456789/28523 eng https://www.scielo.br/j/abb/i/2016.v30n4/ https://doi: 10.1590/0102-33062016abb0247 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Sociedade Botânica do Brasil Acta Botanica Brasilica, vol. 30, no. 4, p. 585-601.
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	Floral anatomy Heterostyly Oldenlandia salzmannii Ovule development Spermacoceae
spellingShingle	Floral anatomy Heterostyly Oldenlandia salzmannii Ovule development Spermacoceae Núñez Florentín, Mariela Cabaña Fader, Andrea Alejandra González, Ana María Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)
topic_facet	Floral anatomy Heterostyly Oldenlandia salzmannii Ovule development Spermacoceae
description	The genus Oldenlandia (Rubiaceae) has a conflicting generic delimitation, with representatives that show diff erent floral syndromes. Oldenlandia salzmannii is a marshy herb that is widespread in South America. It is heterostylous, specifi cally distylous, and self-compatible. Recent molecular phylogenetic studies found that this species forms a clade that is isolated from the remaining described taxa of Oldenlandia. Information about the floral anatomy and reproductive biology of genera in the Spermacoceae tribe, particularly Oldenlandia, is insuffi cient, especially among the neotropical species. Accordingly, the present study aimed at contributing information on the reproductive biology of Oldenlandia salzmannii by analyzing its floral morpho-anatomy, morphometrics and phenology of both floral morphs. These analyses were conducted with natural, cultivated and fi xed material using optical and scanning electron microscopes. Morphologically, the species is typically heterostylous with two fl oral morphs, long-styled and short-styled, the main diff erence being the indument of the corolla. Th e short-styled fl owers have larger anthers and pollen grains. Morphometrics show a high degree of herkogamic reciprocity. Th e mature ovules have a hemitropous position, which is the fi rst record of this position for the Spermacoceae tribe. This study represents the fi rst comprehensive morphological study of Oldenlandia salzmannii.
format	Artículo
author	Núñez Florentín, Mariela Cabaña Fader, Andrea Alejandra González, Ana María
author_facet	Núñez Florentín, Mariela Cabaña Fader, Andrea Alejandra González, Ana María
author_sort	Núñez Florentín, Mariela
title	Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)
title_short	Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)
title_full	Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)
title_fullStr	Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)
title_full_unstemmed	Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)
title_sort	morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)
publisher	Sociedade Botânica do Brasil
publishDate	2021
url	http://repositorio.unne.edu.ar/handle/123456789/28523
work_keys_str_mv	AT nunezflorentinmariela morphoanatomicalandmorphometricstudiesofthefloralstructuresofthedistylousoldenlandiasalzmanniirubiaceae AT cabanafaderandreaalejandra morphoanatomicalandmorphometricstudiesofthefloralstructuresofthedistylousoldenlandiasalzmanniirubiaceae AT gonzalezanamaria morphoanatomicalandmorphometricstudiesofthefloralstructuresofthedistylousoldenlandiasalzmanniirubiaceae
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Morpho anatomical and morphometric studies of the floral structures of the distylous oldenlandia salzmannii (rubiaceae)

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