Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production

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The rise in the world demand for food poses a challenge to our ability to sustain soil fertility and sustainability. The increasing use of no-till agriculture, adopted in many areas of the world as an alternative to conventional farming, may contribute to reduce the erosion of soils and the increase...

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Autores principales:	Figuerola, E.L.M., Guerrero, L.D., Rosa, S.M., Simonetti, L., Duval, M.E., Galantini, J.A., Bedano, J.C., Wall, L.G., Erijman, L.
Formato:	Artículo publishedVersion
Publicado:	2012
Materias:	carbon nitrogen Acidobacteria agricultural procedures article bacterium climate community structure controlled study crop rotation fertilization geographic distribution microbial community no till crop production nonhuman pest control pH physical chemistry pyrosequencing quantitative analysis real time polymerase chain reaction Rubellimicrobium seasonal variation sequence analysis soil analysis soil microflora soil moisture soil quality soil texture validation process Agriculture Argentina Bacteria Crops, Agricultural Geography Phylogeny Soil Soil Microbiology Alphaproteobacteria Bacteria (microorganisms)
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_19326203_v7_n11_p_Figuerola https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_19326203_v7_n11_p_Figuerola_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-paper_19326203_v7_n11_p_Figuerola_oai
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spelling	I28-R145-paper_19326203_v7_n11_p_Figuerola_oai2024-08-16 Figuerola, E.L.M. Guerrero, L.D. Rosa, S.M. Simonetti, L. Duval, M.E. Galantini, J.A. Bedano, J.C. Wall, L.G. Erijman, L. 2012 The rise in the world demand for food poses a challenge to our ability to sustain soil fertility and sustainability. The increasing use of no-till agriculture, adopted in many areas of the world as an alternative to conventional farming, may contribute to reduce the erosion of soils and the increase in the soil carbon pool. However, the advantages of no-till agriculture are jeopardized when its use is linked to the expansion of crop monoculture. The aim of this study was to survey bacterial communities to find indicators of soil quality related to contrasting agriculture management in soils under no-till farming. Four sites in production agriculture, with different soil properties, situated across a west-east transect in the most productive region in the Argentinean pampas, were taken as the basis for replication. Working definitions of Good no-till Agricultural Practices (GAP) and Poor no-till Agricultural Practices (PAP) were adopted for two distinct scenarios in terms of crop rotation, fertilization, agrochemicals use and pest control. Non-cultivated soils nearby the agricultural sites were taken as additional control treatments. Tag-encoded pyrosequencing was used to deeply sample the 16S rRNA gene from bacteria residing in soils corresponding to the three treatments at the four locations. Although bacterial communities as a whole appeared to be structured chiefly by a marked biogeographic provincialism, the distribution of a few taxa was shaped as well by environmental conditions related to agricultural management practices. A statistically supported approach was used to define candidates for management-indicator organisms, subsequently validated using quantitative PCR. We suggest that the ratio between the normalized abundance of a selected group of bacteria within the GP1 group of the phylum Acidobacteria and the genus Rubellimicrobium of the Alphaproteobacteria may serve as a potential management-indicator to discriminate between sustainable vs. non-sustainable agricultural practices in the Pampa region. © 2012 Figuerola et al. Fil:Figuerola, E.L.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Guerrero, L.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rosa, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Erijman, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_19326203_v7_n11_p_Figuerola info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar PLoS ONE 2012;7(11) carbon nitrogen Acidobacteria agricultural procedures article bacterium climate community structure controlled study crop rotation fertilization geographic distribution microbial community no till crop production nonhuman pest control pH physical chemistry pyrosequencing quantitative analysis real time polymerase chain reaction Rubellimicrobium seasonal variation sequence analysis soil analysis soil microflora soil moisture soil quality soil texture validation process Agriculture Argentina Bacteria Crops, Agricultural Geography Phylogeny Soil Soil Microbiology Acidobacteria Alphaproteobacteria Bacteria (microorganisms) Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_19326203_v7_n11_p_Figuerola_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic	carbon nitrogen Acidobacteria agricultural procedures article bacterium climate community structure controlled study crop rotation fertilization geographic distribution microbial community no till crop production nonhuman pest control pH physical chemistry pyrosequencing quantitative analysis real time polymerase chain reaction Rubellimicrobium seasonal variation sequence analysis soil analysis soil microflora soil moisture soil quality soil texture validation process Agriculture Argentina Bacteria Crops, Agricultural Geography Phylogeny Soil Soil Microbiology Acidobacteria Alphaproteobacteria Bacteria (microorganisms)
spellingShingle	carbon nitrogen Acidobacteria agricultural procedures article bacterium climate community structure controlled study crop rotation fertilization geographic distribution microbial community no till crop production nonhuman pest control pH physical chemistry pyrosequencing quantitative analysis real time polymerase chain reaction Rubellimicrobium seasonal variation sequence analysis soil analysis soil microflora soil moisture soil quality soil texture validation process Agriculture Argentina Bacteria Crops, Agricultural Geography Phylogeny Soil Soil Microbiology Acidobacteria Alphaproteobacteria Bacteria (microorganisms) Figuerola, E.L.M. Guerrero, L.D. Rosa, S.M. Simonetti, L. Duval, M.E. Galantini, J.A. Bedano, J.C. Wall, L.G. Erijman, L. Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production
topic_facet	carbon nitrogen Acidobacteria agricultural procedures article bacterium climate community structure controlled study crop rotation fertilization geographic distribution microbial community no till crop production nonhuman pest control pH physical chemistry pyrosequencing quantitative analysis real time polymerase chain reaction Rubellimicrobium seasonal variation sequence analysis soil analysis soil microflora soil moisture soil quality soil texture validation process Agriculture Argentina Bacteria Crops, Agricultural Geography Phylogeny Soil Soil Microbiology Acidobacteria Alphaproteobacteria Bacteria (microorganisms)
description	The rise in the world demand for food poses a challenge to our ability to sustain soil fertility and sustainability. The increasing use of no-till agriculture, adopted in many areas of the world as an alternative to conventional farming, may contribute to reduce the erosion of soils and the increase in the soil carbon pool. However, the advantages of no-till agriculture are jeopardized when its use is linked to the expansion of crop monoculture. The aim of this study was to survey bacterial communities to find indicators of soil quality related to contrasting agriculture management in soils under no-till farming. Four sites in production agriculture, with different soil properties, situated across a west-east transect in the most productive region in the Argentinean pampas, were taken as the basis for replication. Working definitions of Good no-till Agricultural Practices (GAP) and Poor no-till Agricultural Practices (PAP) were adopted for two distinct scenarios in terms of crop rotation, fertilization, agrochemicals use and pest control. Non-cultivated soils nearby the agricultural sites were taken as additional control treatments. Tag-encoded pyrosequencing was used to deeply sample the 16S rRNA gene from bacteria residing in soils corresponding to the three treatments at the four locations. Although bacterial communities as a whole appeared to be structured chiefly by a marked biogeographic provincialism, the distribution of a few taxa was shaped as well by environmental conditions related to agricultural management practices. A statistically supported approach was used to define candidates for management-indicator organisms, subsequently validated using quantitative PCR. We suggest that the ratio between the normalized abundance of a selected group of bacteria within the GP1 group of the phylum Acidobacteria and the genus Rubellimicrobium of the Alphaproteobacteria may serve as a potential management-indicator to discriminate between sustainable vs. non-sustainable agricultural practices in the Pampa region. © 2012 Figuerola et al.
format	Artículo Artículo publishedVersion
author	Figuerola, E.L.M. Guerrero, L.D. Rosa, S.M. Simonetti, L. Duval, M.E. Galantini, J.A. Bedano, J.C. Wall, L.G. Erijman, L.
author_facet	Figuerola, E.L.M. Guerrero, L.D. Rosa, S.M. Simonetti, L. Duval, M.E. Galantini, J.A. Bedano, J.C. Wall, L.G. Erijman, L.
author_sort	Figuerola, E.L.M.
title	Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production
title_short	Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production
title_full	Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production
title_fullStr	Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production
title_full_unstemmed	Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production
title_sort	bacterial indicator of agricultural management for soil under no-till crop production
publishDate	2012
url	http://hdl.handle.net/20.500.12110/paper_19326203_v7_n11_p_Figuerola https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_19326203_v7_n11_p_Figuerola_oai
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Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production

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