Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina
Background and aims: The Sierras Pampeanas Centrales of Argentina constitute the fourth centre of diversity of lycophytes and ferns in the Cono Sur, where representatives of four families of lycophytes live: Huperziaceae, Lycopodiaceae, Isoetaceae and Selaginellaceae. The aim of this work is to prov...
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| Autores principales: | , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Sociedad Argentina de Botánica
2024
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| Materias: | |
| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/44725 |
| Aporte de: |
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I10-R325-article-44725 |
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ojs |
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Universidad Nacional de Córdoba |
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I-10 |
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R-325 |
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Boletín de la Sociedad Argentina de Botánica |
| language |
Español |
| format |
Artículo revista |
| topic |
Argentina esporas licofitas morfología sistemática Argentina lycophytes morphology spores systematics |
| spellingShingle |
Argentina esporas licofitas morfología sistemática Argentina lycophytes morphology spores systematics Macluf, C. Cecilia Arana, Marcelo D. Giudice, Gabriela E. Luna, M. Lujan Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina |
| topic_facet |
Argentina esporas licofitas morfología sistemática Argentina lycophytes morphology spores systematics |
| author |
Macluf, C. Cecilia Arana, Marcelo D. Giudice, Gabriela E. Luna, M. Lujan |
| author_facet |
Macluf, C. Cecilia Arana, Marcelo D. Giudice, Gabriela E. Luna, M. Lujan |
| author_sort |
Macluf, C. Cecilia |
| title |
Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina |
| title_short |
Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina |
| title_full |
Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina |
| title_fullStr |
Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina |
| title_full_unstemmed |
Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina |
| title_sort |
palynological study of the lycophytes (lycopodiopsida) from the sierras pampeanas centrales of argentina |
| description |
Background and aims: The Sierras Pampeanas Centrales of Argentina constitute the fourth centre of diversity of lycophytes and ferns in the Cono Sur, where representatives of four families of lycophytes live: Huperziaceae, Lycopodiaceae, Isoetaceae and Selaginellaceae. The aim of this work is to provide data of the morphology of their spores observed with optical and scanning electron microscopes, as a contribution to the taxonomy and conservation.
M&M: The materials were analysed without prior chemical treatment and photographic records were obtained with both observation equipments.
Results: The morphological diagnostic features of the spores are presented. The Huperziaceae and Lycopodiaceae are isosporous with trilete spores. Huperziaceae presents foveolated or fossulated spores, while Lycopodiaceae spores are reticulate, scabrate and baculate. In Isoetes hieronymi (heterosporate), the microspores are monolete with echinate ornamentation, while the megaspores are trilete, with reticulate ornamentation. The Selaginellaceae, all heterosporate, produce trilete microspores and megaspores, both with varied ornamentation.
Conclusions: Spore characteristics provide relevant information for regional floristic studies as well as for taxonomic assignments, both of extant flora and fossil records. Also, for studies of the composition of soil spore banks as a tool for the conservation of local floristic biodiversity. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2024 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/44725 |
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I10-R325-article-447252024-09-30T17:44:48Z Palynological study of the Lycophytes (Lycopodiopsida) from the Sierras Pampeanas centrales of Argentina Estudio palinológico de las Licofitas (Lycopodiopsida) de las Sierras Pampeanas centrales de Argentina Macluf, C. Cecilia Arana, Marcelo D. Giudice, Gabriela E. Luna, M. Lujan Argentina esporas licofitas morfología sistemática Argentina lycophytes morphology spores systematics Background and aims: The Sierras Pampeanas Centrales of Argentina constitute the fourth centre of diversity of lycophytes and ferns in the Cono Sur, where representatives of four families of lycophytes live: Huperziaceae, Lycopodiaceae, Isoetaceae and Selaginellaceae. The aim of this work is to provide data of the morphology of their spores observed with optical and scanning electron microscopes, as a contribution to the taxonomy and conservation. M&M: The materials were analysed without prior chemical treatment and photographic records were obtained with both observation equipments. Results: The morphological diagnostic features of the spores are presented. The Huperziaceae and Lycopodiaceae are isosporous with trilete spores. Huperziaceae presents foveolated or fossulated spores, while Lycopodiaceae spores are reticulate, scabrate and baculate. In Isoetes hieronymi (heterosporate), the microspores are monolete with echinate ornamentation, while the megaspores are trilete, with reticulate ornamentation. The Selaginellaceae, all heterosporate, produce trilete microspores and megaspores, both with varied ornamentation. Conclusions: Spore characteristics provide relevant information for regional floristic studies as well as for taxonomic assignments, both of extant flora and fossil records. Also, for studies of the composition of soil spore banks as a tool for the conservation of local floristic biodiversity. Introducción y objetivos: Las Sierras Pampeanas Centrales de Argentina constituyen el cuarto centro de diversidad de licofitas y helechos del Cono Sur, donde habitan representantes de cuatro familias de Licofitas: Huperziaceae, Lycopodiaceae, Isoetaceae y Selaginellaceae. El objetivo de este trabajo es aportar datos sobre la morfología de las esporas observadas con microscopios óptico y electrónico de barrido como contribución a la taxonomía y conservación. M&M: El material fue analizado sin tratamiento químico previo y se obtuvieron registros fotográficos con ambos equipos de observación. Resultados: Se presentan las características diagnósticas de la morfología de las esporas. Las Huperziaceae y Lycopodiaceae son isosporadas con esporas triletes. Huperziaceae presenta esporas foveoladas o fosuladas, mientras que en las Lycopodiaceae las esporas son reticuladas, escabradas y baculadas. En Isoetes hieronymi (heterosporada), las microsporas son monoletes con ornamentación equinada, en tanto que las megasporas son triletes, con ornamentación reticulada. Las Selaginellaceae, todas heterosporadas, producen microsporas y megasporas triletes, ambas con ornamentación variada. Conclusiones: Las características de las esporas aportan información relevante para estudios florísticos regionales así como para asignaciones taxonómicas, tanto de la flora actual como de registros fósiles. También, para estudios de la composición de los bancos de esporas del suelo como herramienta para la conservación de la biodiversidad florística local Sociedad Argentina de Botánica 2024-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/44725 10.31055/1851.2372.v59.n3.44725 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 59 No. 3 (2024): Numero Especial de Helechos Boletín de la Sociedad Argentina de Botánica; Vol. 59 Núm. 3 (2024): Numero Especial de Helechos Boletín de la Sociedad Argentina de Botánica; v. 59 n. 3 (2024): Numero Especial de Helechos 1851-2372 0373-580X 10.31055/1851.2372.v59.n3 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/44725/46607 https://revistas.unc.edu.ar/index.php/BSAB/article/view/44725/46608 Derechos de autor 2024 Cármen C. Macluf, Marcelo D. Arana, Gabriela E. Giudice, M. Lujan Luna https://creativecommons.org/licenses/by-nc-nd/4.0 |