Relationship between microbial functions and community structure following agricultural intensification in South American Chaco
Intensification of agricultural systems through the use of intensive agriculture and the advance of deforestation have led to a decrease of soil biological quality. Soil functional and structural microbiota are sensitive parameters to monitor changes caused by agricultural use. Different sites under...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Czech Academy of Agricultural Sciences
2018
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/3541 |
| _version_ | 1855035160474419200 |
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| author | Perez Brandan, Carolina Huidobro, Dina Jorgelina Galvan, Marta Zulema Vargas Gil, Silvina Meriles, Jose Manuel |
| author_browse | Galvan, Marta Zulema Huidobro, Dina Jorgelina Meriles, Jose Manuel Perez Brandan, Carolina Vargas Gil, Silvina |
| author_facet | Perez Brandan, Carolina Huidobro, Dina Jorgelina Galvan, Marta Zulema Vargas Gil, Silvina Meriles, Jose Manuel |
| author_sort | Perez Brandan, Carolina |
| collection | INTA Digital |
| description | Intensification of agricultural systems through the use of intensive agriculture and the advance of deforestation have led to a decrease of soil biological quality. Soil functional and structural microbiota are sensitive parameters to monitor changes caused by agricultural use. Different sites under soybean monoculture (continuous soybean) and soybean/maize rotation practices were selected. Samples were collected from agricultural soils under different periods of implantation: 4-year rotation; 15-year rotation; 5-year monoculture; and 24-year monoculture (M24). A site of native vegetation recently under agricultural production (RUA) was also sampled. Native vegetation soils (NV) adjacent to agricultural sites were sampled as a control. In general, the results showed that RUA and M24 had lower enzyme activities, less microbial abundance and low physical and chemical soil quality than those subjected to crop rotation. In contrast, both the bacterial and total microbial biomasses were significantly higher in NV and crop rotation than in soils under monoculture systems. Although it was expected that differences in microbial activities would be due to changes in microbial community abundance, the results indicated that changes in soil management produced faster alterations to soil enzyme activities than any modifications induced in the microbial community structure. Consequently, both aspects of microbial diversity, namely function and structure, were affected independently by agricultural intensification. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3541 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Czech Academy of Agricultural Sciences |
| publisherStr | Czech Academy of Agricultural Sciences |
| record_format | dspace |
| spelling | INTA35412018-10-02T17:51:19Z Relationship between microbial functions and community structure following agricultural intensification in South American Chaco Perez Brandan, Carolina Huidobro, Dina Jorgelina Galvan, Marta Zulema Vargas Gil, Silvina Meriles, Jose Manuel Soil Microorganisms Enzymes Sustainable Land Management Intensive Farming Microorganismos del Suelo Enzimas Ordenación de Tierras Sostenible Explotación Agrícola Intensiva Phospholipid Fatty Acids Soil Microbiology Microbial Activity Chaco Semiárido Intensification of agricultural systems through the use of intensive agriculture and the advance of deforestation have led to a decrease of soil biological quality. Soil functional and structural microbiota are sensitive parameters to monitor changes caused by agricultural use. Different sites under soybean monoculture (continuous soybean) and soybean/maize rotation practices were selected. Samples were collected from agricultural soils under different periods of implantation: 4-year rotation; 15-year rotation; 5-year monoculture; and 24-year monoculture (M24). A site of native vegetation recently under agricultural production (RUA) was also sampled. Native vegetation soils (NV) adjacent to agricultural sites were sampled as a control. In general, the results showed that RUA and M24 had lower enzyme activities, less microbial abundance and low physical and chemical soil quality than those subjected to crop rotation. In contrast, both the bacterial and total microbial biomasses were significantly higher in NV and crop rotation than in soils under monoculture systems. Although it was expected that differences in microbial activities would be due to changes in microbial community abundance, the results indicated that changes in soil management produced faster alterations to soil enzyme activities than any modifications induced in the microbial community structure. Consequently, both aspects of microbial diversity, namely function and structure, were affected independently by agricultural intensification. EEA Salta Fil: Perez Brandan, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Huidobro, Dina Jorgelina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Galvan, Marta Zulema. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Vargas Gil, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Patología Vegetal; Argentina Fil: Meriles, Jose Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina 2018-10-02T17:47:03Z 2018-10-02T17:47:03Z 2016-07 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3541 1214-1178 1805-9368 (Online) 10.17221/19/2016-PSE eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Chaco (province) Czech Academy of Agricultural Sciences Plant soil and environment 62 (7) : 321-328. (July 2016) |
| spellingShingle | Soil Microorganisms Enzymes Sustainable Land Management Intensive Farming Microorganismos del Suelo Enzimas Ordenación de Tierras Sostenible Explotación Agrícola Intensiva Phospholipid Fatty Acids Soil Microbiology Microbial Activity Chaco Semiárido Perez Brandan, Carolina Huidobro, Dina Jorgelina Galvan, Marta Zulema Vargas Gil, Silvina Meriles, Jose Manuel Relationship between microbial functions and community structure following agricultural intensification in South American Chaco |
| title | Relationship between microbial functions and community structure following agricultural intensification in South American Chaco |
| title_full | Relationship between microbial functions and community structure following agricultural intensification in South American Chaco |
| title_fullStr | Relationship between microbial functions and community structure following agricultural intensification in South American Chaco |
| title_full_unstemmed | Relationship between microbial functions and community structure following agricultural intensification in South American Chaco |
| title_short | Relationship between microbial functions and community structure following agricultural intensification in South American Chaco |
| title_sort | relationship between microbial functions and community structure following agricultural intensification in south american chaco |
| topic | Soil Microorganisms Enzymes Sustainable Land Management Intensive Farming Microorganismos del Suelo Enzimas Ordenación de Tierras Sostenible Explotación Agrícola Intensiva Phospholipid Fatty Acids Soil Microbiology Microbial Activity Chaco Semiárido |
| url | http://hdl.handle.net/20.500.12123/3541 |
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