Identification of cyanobacteria in soils of the northeast region of the province of Córdoba

The expansion of the agricultural frontier causes losses of biodiversity and native genetic resources, affecting the sustainability of the ecosystem. The presence and diversity of cyanobacteria are considered to be bioindicators sensitive to land use change. The objective of this work was to charact...

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Autores principales: Díaz, Carola Celeste, Vettorello, Cecilia
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias 2022
Materias:
sustainability
biological recovery
saline soils
suelos salinos
sustentabilidad
recuperación biológica
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/34491
Aporte de:
AgriScientia de Universidad Nacional de Córdoba
id I10-R352-article-34491
record_format ojs
spelling I10-R352-article-344912023-11-30T15:44:58Z Identification of cyanobacteria in soils of the northeast region of the province of Córdoba Identificación de cianobacterias en suelos de la región noroeste de la provincia de Córdoba, Argentina Díaz, Carola Celeste Vettorello, Cecilia sustainability biological recovery saline soils suelos salinos sustentabilidad recuperación biológica The expansion of the agricultural frontier causes losses of biodiversity and native genetic resources, affecting the sustainability of the ecosystem. The presence and diversity of cyanobacteria are considered to be bioindicators sensitive to land use change. The objective of this work was to characterize the communities of cyanobacteria present in the soils in the northeast of the province of Córdoba, comparing soils with implanted pastures and in pristine conditions. Soil samples were taken in three locations, in environments with different levels of salinity: mild, moderateand saline. The samples were cultured in Watanabe medium, under controlled conditions to promote the growth of cyanobacteria. An Olympus BX 50 optical microscope was used for taxonomic identification. It was possible to identify the species of cyanobacteria present at each site, observing a dominance of heterocyst nitrogen fixators in soils with higher salinity. In turn, in the three native forest present at each site, greater species richness was observed. The most sensitive to the change in land use being Oscillatoria limosa and Phormidium constricta. Cyanobacteria constitute a future line of research related to the restoration and productive recovery of saline environments, under the focus of sustaining biodiversity. La expansión de la frontera agrícola ocasiona pérdidas de biodiversidad y de recursos genéticos nativos, afectando la sustentabilidad del ecosistema. Se considera que la presencia y la diversidad de cianobacterias son bioindicadores sensibles al cambio en el uso de los suelos. El objetivo de este trabajo fue caracterizar las comunidades de cianobacterias presentes en suelos del noreste de la provincia de Córdoba, comparando suelos con pasturas implantadas y en condiciones prístinas. Se tomaron muestras de suelo en tres localidades, en ambientes con distintos niveles de salinidad: leve, moderado y salino. Las muestras se cultivaron en medio Watanabe, en condiciones controladas para favorecer el crecimiento de las cianobacterias. Se lograron identificar las especies de cianobacterias presentes en cada sitio, observando una dominancia de fijadoras de nitrógeno heterocistadas en los suelos con mayor salinidad. A su vez, en los tres montes de cada sitio se observó mayor riqueza de especies. Las más sensibles al cambio en el uso del suelo fueron Oscillatoria limosa y Phormidium constricta. Las cianobacterias constituyen una futura línea de investigación relacionada a la restauración y recuperación productiva de ambientes salinos, dentro de una propuesta que contribuya a favorecer la biodiversidad del suelo. Facultad de Ciencias Agropecuarias 2022-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/agris/article/view/34491 10.31047/1668.298x.v39.n2.34491 AgriScientia; Vol. 39 No. 2 (2022); 57-64 AgriScientia; Vol. 39 Núm. 2 (2022); 57-64 1668-298X 10.31047/1668.298x.v39.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/34491/40244 https://revistas.unc.edu.ar/index.php/agris/article/view/34491/41189 Derechos de autor 2022 Carola Celeste Díaz https://creativecommons.org/licenses/by-sa/4.0
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-352
container_title_str AgriScientia
language Español
format Artículo revista
topic sustainability
biological recovery
saline soils
suelos salinos
sustentabilidad
recuperación biológica
spellingShingle sustainability
biological recovery
saline soils
suelos salinos
sustentabilidad
recuperación biológica
Díaz, Carola Celeste
Vettorello, Cecilia
Identification of cyanobacteria in soils of the northeast region of the province of Córdoba
topic_facet sustainability
biological recovery
saline soils
suelos salinos
sustentabilidad
recuperación biológica
author Díaz, Carola Celeste
Vettorello, Cecilia
author_facet Díaz, Carola Celeste
Vettorello, Cecilia
author_sort Díaz, Carola Celeste
title Identification of cyanobacteria in soils of the northeast region of the province of Córdoba
title_short Identification of cyanobacteria in soils of the northeast region of the province of Córdoba
title_full Identification of cyanobacteria in soils of the northeast region of the province of Córdoba
title_fullStr Identification of cyanobacteria in soils of the northeast region of the province of Córdoba
title_full_unstemmed Identification of cyanobacteria in soils of the northeast region of the province of Córdoba
title_sort identification of cyanobacteria in soils of the northeast region of the province of córdoba
description The expansion of the agricultural frontier causes losses of biodiversity and native genetic resources, affecting the sustainability of the ecosystem. The presence and diversity of cyanobacteria are considered to be bioindicators sensitive to land use change. The objective of this work was to characterize the communities of cyanobacteria present in the soils in the northeast of the province of Córdoba, comparing soils with implanted pastures and in pristine conditions. Soil samples were taken in three locations, in environments with different levels of salinity: mild, moderateand saline. The samples were cultured in Watanabe medium, under controlled conditions to promote the growth of cyanobacteria. An Olympus BX 50 optical microscope was used for taxonomic identification. It was possible to identify the species of cyanobacteria present at each site, observing a dominance of heterocyst nitrogen fixators in soils with higher salinity. In turn, in the three native forest present at each site, greater species richness was observed. The most sensitive to the change in land use being Oscillatoria limosa and Phormidium constricta. Cyanobacteria constitute a future line of research related to the restoration and productive recovery of saline environments, under the focus of sustaining biodiversity.
publisher Facultad de Ciencias Agropecuarias
publishDate 2022
url https://revistas.unc.edu.ar/index.php/agris/article/view/34491
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AT vettorellocecilia identificationofcyanobacteriainsoilsofthenortheastregionoftheprovinceofcordoba
AT diazcarolaceleste identificaciondecianobacteriasensuelosdelaregionnoroestedelaprovinciadecordobaargentina
AT vettorellocecilia identificaciondecianobacteriasensuelosdelaregionnoroestedelaprovinciadecordobaargentina
first_indexed 2024-09-03T22:16:35Z
last_indexed 2024-09-03T22:16:35Z
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