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López Zieher, X. M.; Vivanco, L.; & Yahdjian, M. L. (2020)"Soil bacterial communities remain altered after 30 years of agriculture abandonment in Pampa grasslands". Oecologia,193, (1),p.959–968

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Documento:
Artículo
Título en inglés:
Soil bacterial communities remain altered after 30 years of agriculture abandonment in Pampa grasslands
Autor/es:
López Zieher, Ximena María; Vivanco, Lucía; Yahdjian, María Laura
Filiación:
López Zieher, Ximena María. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
López Zieher, Ximena María. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
López Zieher, Ximena María. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología. Buenos Aires, Argentina.
Vivanco, Lucía. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Vivanco, Lucía. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Vivanco, Lucía. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología. Buenos Aires, Argentina.
Yahdjian, María Laura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Yahdjian, María Laura. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Yahdjian, María Laura. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología. Buenos Aires, Argentina.
Año:
2020
Título revista:
Oecologia
ISSN:
0013-8703
Volumen:
193
Número:
1
Páginas:
959–968
Temas:
TEMPERATE GRASSLAND; BIOLOGICAL INVASIONS; SOIL MICROBIAL COMMUNITIES; OLD FIELDS; BACTERIAL SUCCESSION
Idioma:
Inglés
URL al Editor:

Resumen:

Old fields are spreading in the world because of agriculture abandonment, and they show a persistence of exotic plant species with little recovery towards the original vegetation composition. Soil biota may also differ between old fields and native grasslands, but were comparatively less studied than plant communities, despite their importance in biogeochemical processes. Here we compared soil bacterial communities of exotic-dominated old fields with those of remnants of native grasslands in the Inland Pampa, Argentina, using the 16S rRNA gene amplicon sequencing approach. We also characterized plant communities, soil physico-chemical properties, and soil respiration. We expected more diverse soil bacterial communities, with higher heterogeneity, in remnant grasslands than in old fields because of a more diverse and more heterogeneous plant community. However, our results showed that soil bacterial communities had higher Shannon diversity in old fields than in remnant grasslands, but richness was not significantly different. Also we found different bacterial community compositions between grasslands even at a low taxonomic level. On the other hand, old fields harbored less heterogeneous bacterial communities than remnants, and bacteria and plant beta diversity were correlated. Despite contrasting plant and bacterial composition between old fields and remnant grasslands, soil physico-chemical properties were quite similar between grasslands. Overall, our results showed that bacterial communities in grassland soils were associated with changes in plant communities after agricultural abandonment. Plant-microbial feedbacks might regulate plant and soil bacterial community assemblage in old fields, yet further research is needed to demonstrate this potential feedback mechanism.

Citación:

---------- APA ----------

López Zieher, X. M.; Vivanco, L.; & Yahdjian, M. L. (2020). Soil bacterial communities remain altered after 30 years of agriculture abandonment in Pampa grasslands. Oecologia,193, (1),p.959–968
10.1007/s00442-020-04736-3

---------- CHICAGO ----------

López Zieher, Ximena María, Vivanco, Lucía, Yahdjian, María Laura. 2020. "Soil bacterial communities remain altered after 30 years of agriculture abandonment in Pampa grasslands". Oecologia 193, no.1:959–968.
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http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2020lopezzieher