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

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, Eva Lucía Margarita, Guerrero, Leandro Demián, Rosa, Silvina Mariana, Erijman, Leonardo
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:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n11_p_Figuerola http://hdl.handle.net/20.500.12110/paper_19326203_v7_n11_p_Figuerola
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_19326203_v7_n11_p_Figuerola
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spelling	paper:paper_19326203_v7_n11_p_Figuerola2023-06-08T16:31:01Z Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production Figuerola, Eva Lucía Margarita Guerrero, Leandro Demián Rosa, Silvina Mariana Erijman, Leonardo 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) 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. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n11_p_Figuerola http://hdl.handle.net/20.500.12110/paper_19326203_v7_n11_p_Figuerola
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (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, Eva Lucía Margarita Guerrero, Leandro Demián Rosa, Silvina Mariana Erijman, Leonardo 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.
author	Figuerola, Eva Lucía Margarita Guerrero, Leandro Demián Rosa, Silvina Mariana Erijman, Leonardo
author_facet	Figuerola, Eva Lucía Margarita Guerrero, Leandro Demián Rosa, Silvina Mariana Erijman, Leonardo
author_sort	Figuerola, Eva Lucía Margarita
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	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n11_p_Figuerola http://hdl.handle.net/20.500.12110/paper_19326203_v7_n11_p_Figuerola
work_keys_str_mv	AT figuerolaevaluciamargarita bacterialindicatorofagriculturalmanagementforsoilundernotillcropproduction AT guerreroleandrodemian bacterialindicatorofagriculturalmanagementforsoilundernotillcropproduction AT rosasilvinamariana bacterialindicatorofagriculturalmanagementforsoilundernotillcropproduction AT erijmanleonardo bacterialindicatorofagriculturalmanagementforsoilundernotillcropproduction
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Bacterial Indicator of Agricultural Management for Soil under No-Till Crop Production

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