Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina.

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Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina. The family Equisetaceae is represented in the study area by the genus Equisetum with two species, E. bogotense and E. giganteum. The study was based on herbarium and fresh specimens and the...

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Autores principales: Piñeiro, María Raquel, Morbelli, Marta A.
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2014
Materias:
Equisetaceae
Equisetum
Argentina
esporas
morfología
ultraestructura.
spores
morphology
ultrastructure.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/7819
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10-article-7819
record_format ojs
spelling I10-R10-article-78192023-07-06T23:25:08Z Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina. Morfología y ultraestructura de las esporas de las Equisetaceae (Equisetopsida) del Noroeste de Argentina Piñeiro, María Raquel Morbelli, Marta A. Equisetaceae Equisetum Argentina esporas morfología ultraestructura. Equisetaceae Equisetum Argentina spores morphology ultrastructure. Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina. The family Equisetaceae is represented in the study area by the genus Equisetum with two species, E. bogotense and E. giganteum. The study was based on herbarium and fresh specimens and the spores were studied under light microscope, scanning and transmission electron microscopes. The spores are spheroid, 35-64 µm in equatorial diameter, the cytoplasm has chlorophyll. In both species studied, the spores have a circular and small unique type of aperture which at both sides of the aperture, in the outer side have two thread-like elaters, spathulate. These structures are non-resistant to the acetolysis treatment. The sporoderm is composed of two walls, perispore, 930 nm-1,2 µm thick, ornamented, with two layers in section. The exospore is two layered, compact, 1,4-3,1 µm thick, slightly wave-like. Between both walls was observed an intermediate layer composed of a laxe structure, in spores in different stages of maturation. In both species, the spores are similar in the shape and sporoderm ultrastructure while differences were found in spore sizes. La familia Equisetaceae se haya representada en el Noroeste de Argentina por el género Equisetum Michx. ex DC con dos especies, E. bogotense Kunth y E. giganteum L. El estudio se realizó en base a material de herbario y fresco. Las observaciones se realizaron con microscopios óptico y electrónicos de barrido y transmisión. Las esporas son esferoidales, miden 35-64 µm de diámetro ecuatorial, su citoplasma posee clorofila. En ambas especies, las esporas presentan una estructura abertural circular y a ambos lados de la misma poseen un par de eláteres acintados de extremos espatulados, no resistentes al tratamiento de acetólisis. La esporodermis consta de dos paredes, perisporio, delgado, ornamentado, con dos estratos, de 930 nm-1,2 µm de espesor, y exosporio, de 1,4-3,1 µm de espesor, compacto, con dos estratos y superficie levemente ondulada o plegada. Entre ambas paredes se ha observado una capa intermedia de naturaleza laxa, y diferente espesor en esporas con distintos estadios de maduración. Las esporas son similares, en ambas especies, en cuanto a la forma y ultraestructura de la esporodermis; se observan diferencias en el tamaño de las mismas Sociedad Argentina de Botánica 2014-07-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/7819 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 49 No. 1 (2014): Abril; 35-40 Boletín de la Sociedad Argentina de Botánica; Vol. 49 Núm. 1 (2014): Abril; 35-40 Boletín de la Sociedad Argentina de Botánica; v. 49 n. 1 (2014): Abril; 35-40 1851-2372 0373-580X 10.31055/1851.2372.v49.n1 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/7819/8689
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 Equisetaceae
Equisetum
Argentina
esporas
morfología
ultraestructura.
Equisetaceae
Equisetum
Argentina
spores
morphology
ultrastructure.
spellingShingle Equisetaceae
Equisetum
Argentina
esporas
morfología
ultraestructura.
Equisetaceae
Equisetum
Argentina
spores
morphology
ultrastructure.
Piñeiro, María Raquel
Morbelli, Marta A.
Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina.
topic_facet Equisetaceae
Equisetum
Argentina
esporas
morfología
ultraestructura.
Equisetaceae
Equisetum
Argentina
spores
morphology
ultrastructure.
author Piñeiro, María Raquel
Morbelli, Marta A.
author_facet Piñeiro, María Raquel
Morbelli, Marta A.
author_sort Piñeiro, María Raquel
title Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina.
title_short Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina.
title_full Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina.
title_fullStr Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina.
title_full_unstemmed Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina.
title_sort spore morphology and wall ultrastructure in equisetaceae spores (equisetopsida) from north-western argentina.
description Spore morphology and wall ultrastructure in Equisetaceae spores (Equisetopsida) from north-western Argentina. The family Equisetaceae is represented in the study area by the genus Equisetum with two species, E. bogotense and E. giganteum. The study was based on herbarium and fresh specimens and the spores were studied under light microscope, scanning and transmission electron microscopes. The spores are spheroid, 35-64 µm in equatorial diameter, the cytoplasm has chlorophyll. In both species studied, the spores have a circular and small unique type of aperture which at both sides of the aperture, in the outer side have two thread-like elaters, spathulate. These structures are non-resistant to the acetolysis treatment. The sporoderm is composed of two walls, perispore, 930 nm-1,2 µm thick, ornamented, with two layers in section. The exospore is two layered, compact, 1,4-3,1 µm thick, slightly wave-like. Between both walls was observed an intermediate layer composed of a laxe structure, in spores in different stages of maturation. In both species, the spores are similar in the shape and sporoderm ultrastructure while differences were found in spore sizes.
publisher Sociedad Argentina de Botánica
publishDate 2014
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/7819
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AT morbellimartaa sporemorphologyandwallultrastructureinequisetaceaesporesequisetopsidafromnorthwesternargentina
AT pineiromariaraquel morfologiayultraestructuradelasesporasdelasequisetaceaeequisetopsidadelnoroestedeargentina
AT morbellimartaa morfologiayultraestructuradelasesporasdelasequisetaceaeequisetopsidadelnoroestedeargentina
first_indexed 2022-08-20T01:20:12Z
last_indexed 2023-07-07T00:12:52Z
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