Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina.
Background and aims: In 2013, blooms similar to those produced by Didymosphenia geminata (Lyngbye) M. Schmidt around the world, were detected in the Grande River basin, Tierra del Fuego province, and in 2014 in de las Vueltas River in Santa Cruz province. The aim of this paper is to analyze the valv...
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Artículo revista |
| Lenguaje: | Inglés |
| Publicado: |
Sociedad Argentina de Botánica
2020
|
| Materias: | |
| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/29634 |
| Aporte de: |
| id |
I10-R325-article-29634 |
|---|---|
| record_format |
ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| language |
Inglés |
| format |
Artículo revista |
| topic |
diatoms Didymosphenia geminata southern Patagonia morphology invasion diatomeas Didymosphenia geminata Patagonia sur morfología invasión |
| spellingShingle |
diatoms Didymosphenia geminata southern Patagonia morphology invasion diatomeas Didymosphenia geminata Patagonia sur morfología invasión Uyua, Noelia Mariel Sala, Silvia E. Santinelli, Norma H. Sastre, Alicia V. Cortés, Juan I. Rogel, Bibiana De Carli, Pedro Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina. |
| topic_facet |
diatoms Didymosphenia geminata southern Patagonia morphology invasion diatomeas Didymosphenia geminata Patagonia sur morfología invasión |
| author |
Uyua, Noelia Mariel Sala, Silvia E. Santinelli, Norma H. Sastre, Alicia V. Cortés, Juan I. Rogel, Bibiana De Carli, Pedro |
| author_facet |
Uyua, Noelia Mariel Sala, Silvia E. Santinelli, Norma H. Sastre, Alicia V. Cortés, Juan I. Rogel, Bibiana De Carli, Pedro |
| author_sort |
Uyua, Noelia Mariel |
| title |
Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina. |
| title_short |
Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina. |
| title_full |
Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina. |
| title_fullStr |
Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina. |
| title_full_unstemmed |
Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina. |
| title_sort |
valve morphology of didymosphenia geminata (bacillariophyceae) from santa cruz and tierra del fuego provinces, patagonia, argentina. |
| description |
Background and aims: In 2013, blooms similar to those produced by Didymosphenia geminata (Lyngbye) M. Schmidt around the world, were detected in the Grande River basin, Tierra del Fuego province, and in 2014 in de las Vueltas River in Santa Cruz province. The aim of this paper is to analyze the valve morphology and morphometry of these materials to establish if they correspond to D. geminata or to other species of the genus that is producing the massive growth in southern Patagonia.
M&M: Samples were collected at Grande River in 2013 and 2015 and, in de las Vueltas River in 2015 and 2016. Samples were analyzed with light and electron microscopy. For morphometric analyses 100 specimens from each sample were measured and statistical analyses were carried out using the R statistical package.
Results: The studied populations have the same fine morphology described for other populations collected in Patagonia. Nevertheless, in some sampling sites from Santa Cruz province, we found a morphotype with a markedly smaller size, subcapitated poles, little marked constrictions of the poles, a broad central area (relative to cell size) and 1 to 3 stigmata, that was never reported in South America.
Conclusions: The studied populations correspond to D. geminata ssp. geminata Metzeltin & Lange-Bertalot. From a morphological point of view the smaller morphotype present in Santa Cruz belongs to the same subspecies but can be easily misidentified during the routine monitoring programs carried out with light microscope due its size and valve outline. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2020 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/29634 |
| work_keys_str_mv |
AT uyuanoeliamariel valvemorphologyofdidymospheniageminatabacillariophyceaefromsantacruzandtierradelfuegoprovincespatagoniaargentina AT salasilviae valvemorphologyofdidymospheniageminatabacillariophyceaefromsantacruzandtierradelfuegoprovincespatagoniaargentina AT santinellinormah valvemorphologyofdidymospheniageminatabacillariophyceaefromsantacruzandtierradelfuegoprovincespatagoniaargentina AT sastrealiciav valvemorphologyofdidymospheniageminatabacillariophyceaefromsantacruzandtierradelfuegoprovincespatagoniaargentina AT cortesjuani valvemorphologyofdidymospheniageminatabacillariophyceaefromsantacruzandtierradelfuegoprovincespatagoniaargentina AT rogelbibiana valvemorphologyofdidymospheniageminatabacillariophyceaefromsantacruzandtierradelfuegoprovincespatagoniaargentina AT decarlipedro valvemorphologyofdidymospheniageminatabacillariophyceaefromsantacruzandtierradelfuegoprovincespatagoniaargentina AT uyuanoeliamariel morfologiavalvardedidymospheniageminatabacillariophyceaedelasprovinciasdesantacruzytierradelfuegopatagoniaargentina AT salasilviae morfologiavalvardedidymospheniageminatabacillariophyceaedelasprovinciasdesantacruzytierradelfuegopatagoniaargentina AT santinellinormah morfologiavalvardedidymospheniageminatabacillariophyceaedelasprovinciasdesantacruzytierradelfuegopatagoniaargentina AT sastrealiciav morfologiavalvardedidymospheniageminatabacillariophyceaedelasprovinciasdesantacruzytierradelfuegopatagoniaargentina AT cortesjuani morfologiavalvardedidymospheniageminatabacillariophyceaedelasprovinciasdesantacruzytierradelfuegopatagoniaargentina AT rogelbibiana morfologiavalvardedidymospheniageminatabacillariophyceaedelasprovinciasdesantacruzytierradelfuegopatagoniaargentina AT decarlipedro morfologiavalvardedidymospheniageminatabacillariophyceaedelasprovinciasdesantacruzytierradelfuegopatagoniaargentina |
| first_indexed |
2024-09-03T22:49:58Z |
| last_indexed |
2024-09-03T22:49:58Z |
| _version_ |
1809217013413838848 |
| spelling |
I10-R325-article-296342021-02-18T22:39:31Z Valve morphology of Didymosphenia geminata (Bacillariophyceae) from Santa Cruz and Tierra del Fuego provinces, Patagonia, Argentina. Morfología valvar de Didymosphenia geminata (Bacillariophyceae) de las provincias de Santa Cruz y Tierra del Fuego, Patagonia, Argentina. Uyua, Noelia Mariel Sala, Silvia E. Santinelli, Norma H. Sastre, Alicia V. Cortés, Juan I. Rogel, Bibiana De Carli, Pedro diatoms Didymosphenia geminata southern Patagonia morphology invasion diatomeas Didymosphenia geminata Patagonia sur morfología invasión Background and aims: In 2013, blooms similar to those produced by Didymosphenia geminata (Lyngbye) M. Schmidt around the world, were detected in the Grande River basin, Tierra del Fuego province, and in 2014 in de las Vueltas River in Santa Cruz province. The aim of this paper is to analyze the valve morphology and morphometry of these materials to establish if they correspond to D. geminata or to other species of the genus that is producing the massive growth in southern Patagonia. M&M: Samples were collected at Grande River in 2013 and 2015 and, in de las Vueltas River in 2015 and 2016. Samples were analyzed with light and electron microscopy. For morphometric analyses 100 specimens from each sample were measured and statistical analyses were carried out using the R statistical package. Results: The studied populations have the same fine morphology described for other populations collected in Patagonia. Nevertheless, in some sampling sites from Santa Cruz province, we found a morphotype with a markedly smaller size, subcapitated poles, little marked constrictions of the poles, a broad central area (relative to cell size) and 1 to 3 stigmata, that was never reported in South America. Conclusions: The studied populations correspond to D. geminata ssp. geminata Metzeltin & Lange-Bertalot. From a morphological point of view the smaller morphotype present in Santa Cruz belongs to the same subspecies but can be easily misidentified during the routine monitoring programs carried out with light microscope due its size and valve outline. Introducción y objetivos: En 2013 floraciones similares a las producidas por Didymosphenia geminata (Lyngbye) M. Schmidt en distintos lugares del mundo fueron detectadas en la Cuenca del Río Grande, provincia de Tierra del Fuego y, en 2014 en el río de las Vueltas en la provincia de Santa Cruz. El objetivo del trabajo fue analizar la morfología y morfometría valvar de estos materiales para establecer si corresponden a D. geminata o a otra especie del género que está produciendo floraciones masivas en la Patagonia sur. M&M: Las muestras fueron colectadas en el Río Grande en 2013 y 2015 y en el Río de las Vueltas en 2015 y 2016. El material fue analizado con microscopía óptica y electrónica. Para los análisis morfométricos fueron medidos 100 especímenes por muestra y los análisis estadísticos fueron llevados a cabo con el programa estadístico R. Resultados: Las poblaciones estudiadas presentan las mismas características morfológicas descriptas para poblaciones de distintos lugares de Patagonia. Sin embargo, en Santa Cruz observamos un morfotipo marcadamente más pequeño, con polos subcapitados, constricción suavemente marcada, un área central amplia con 1 a 3 estigmas, que no había sido descripto antes para Sudamérica. Conclusiones: Las poblaciones estudiadas corresponden a D. geminata ssp. geminata Metzeltin & Lange-Bertalot. Desde un punto de vista morfológico, los especímenes pequeños presentes en Santa Cruz pertenecen a la misma subespecie pero por su tamaño y contorno valvar pueden ser confundidos con otros taxones durante los programas de monitoreo llevados a cabo con microscopía óptica. Sociedad Argentina de Botánica 2020-12-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion text/html application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/29634 10.31055/1851.2372.v55.n4.29634 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 55 No. 4 (2020): December; 535-545 Boletín de la Sociedad Argentina de Botánica; Vol. 55 Núm. 4 (2020): Diciembre; 535-545 Boletín de la Sociedad Argentina de Botánica; v. 55 n. 4 (2020): Diciembre; 535-545 1851-2372 0373-580X 10.31055/1851.2372.v55.n4 eng https://revistas.unc.edu.ar/index.php/BSAB/article/view/29634/31818 https://revistas.unc.edu.ar/index.php/BSAB/article/view/29634/31583 Derechos de autor 2020 Noelia Mariel Uyua, SILVIA E. SALA, Norma A. Santinelli, Alicia V. Sastre, Juan I. Cortés, Bibiana Rogel, Pedro De Carli https://creativecommons.org/licenses/by-nc-nd/4.0 |