Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas
Intensive land use in the Argentine Pampas has led to soil degradation, yet links between soil organic matter (SOM) composition, enzyme activity, and fungal communities remain unclear. This study compared contrasting ecoregions and land uses: pristine (PI), pasture (PA), crop rotation with cover cro...
| Main Authors: | , , , , , , , , , , |
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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MDPI
2025
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| Online Access: | http://hdl.handle.net/20.500.12123/24712 https://www.mdpi.com/2073-4395/15/11/2469 https://doi.org/10.3390/agronomy15112469 |
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| author | Barbero, Florencia Magali Verdenelli, Romina Aylén Dominchin, María Florencia Frasier, Ileana Restovich, Silvina Beatriz Serri, Dannae Lilia Campilongo Mancilla, Ernesto Javier Faggioli, Valeria Soledad Iriarte, Ana G. Vargas Gil, Silvina Meriles, José Manuel |
| author_browse | Barbero, Florencia Magali Campilongo Mancilla, Ernesto Javier Dominchin, María Florencia Faggioli, Valeria Soledad Frasier, Ileana Iriarte, Ana G. Meriles, José Manuel Restovich, Silvina Beatriz Serri, Dannae Lilia Vargas Gil, Silvina Verdenelli, Romina Aylén |
| author_facet | Barbero, Florencia Magali Verdenelli, Romina Aylén Dominchin, María Florencia Frasier, Ileana Restovich, Silvina Beatriz Serri, Dannae Lilia Campilongo Mancilla, Ernesto Javier Faggioli, Valeria Soledad Iriarte, Ana G. Vargas Gil, Silvina Meriles, José Manuel |
| author_sort | Barbero, Florencia Magali |
| collection | INTA Digital |
| description | Intensive land use in the Argentine Pampas has led to soil degradation, yet links between soil organic matter (SOM) composition, enzyme activity, and fungal communities remain unclear. This study compared contrasting ecoregions and land uses: pristine (PI), pasture (PA), crop rotation with cover crops (RO), and monoculture (MO). Infrared spectra showed that PI soils in Anguil had higher absorbance in hydroxyl/amine (3400 cm−1: 0.90 ± 0.08) and carbonyl (1750 cm−1: 0.52 ± 0.12) bands than MO soils (0.47 ± 0.30 and 0.35 ± 0.06; p < 0.05), indicating greater SOM diversity. Pergamino soils showed smaller differences, reflecting site-specific effects. Enzyme activities also responded to land use. In Anguil, xylosidase, β-1,4-N-acetylglucosaminidase, and phosphatase peaked under PI (40, 127, and 443 nmol g−1 h−1). In Pergamino, xylosidase and β-1,4-N-acetylglucosaminidase were higher under PA and PI, indicating enhanced microbial functionality under low disturbance. Fungal composition varied with land use and location: Mortierellomycetes dominated in Pergamino, while Leotiomycetes and Agaricomycetes were more abundant in PI and PA, and Dothideomycetes increased in MO and RO. Despite compositional shifts, fungal diversity changed little. Integrating chemical, biochemical, and molecular indicators revealed how land-use intensification modifies SOM and microbial processes in Pampas soils. |
| format | info:ar-repo/semantics/artículo |
| id | INTA24712 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA247122025-12-22T16:41:21Z Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas Barbero, Florencia Magali Verdenelli, Romina Aylén Dominchin, María Florencia Frasier, Ileana Restovich, Silvina Beatriz Serri, Dannae Lilia Campilongo Mancilla, Ernesto Javier Faggioli, Valeria Soledad Iriarte, Ana G. Vargas Gil, Silvina Meriles, José Manuel Soil Organic Matter Enzyme Activity High-throughput Sequencing Materia Orgánica del Suelo Actividad Enzimática Secuenciación de Alto Rendimiento Argentina Land-use Intensification Fungal Community Structure Intensificación del Uso de la Tierra Estructura de la Comunidad Fúngica Región Pampeana Intensive land use in the Argentine Pampas has led to soil degradation, yet links between soil organic matter (SOM) composition, enzyme activity, and fungal communities remain unclear. This study compared contrasting ecoregions and land uses: pristine (PI), pasture (PA), crop rotation with cover crops (RO), and monoculture (MO). Infrared spectra showed that PI soils in Anguil had higher absorbance in hydroxyl/amine (3400 cm−1: 0.90 ± 0.08) and carbonyl (1750 cm−1: 0.52 ± 0.12) bands than MO soils (0.47 ± 0.30 and 0.35 ± 0.06; p < 0.05), indicating greater SOM diversity. Pergamino soils showed smaller differences, reflecting site-specific effects. Enzyme activities also responded to land use. In Anguil, xylosidase, β-1,4-N-acetylglucosaminidase, and phosphatase peaked under PI (40, 127, and 443 nmol g−1 h−1). In Pergamino, xylosidase and β-1,4-N-acetylglucosaminidase were higher under PA and PI, indicating enhanced microbial functionality under low disturbance. Fungal composition varied with land use and location: Mortierellomycetes dominated in Pergamino, while Leotiomycetes and Agaricomycetes were more abundant in PI and PA, and Dothideomycetes increased in MO and RO. Despite compositional shifts, fungal diversity changed little. Integrating chemical, biochemical, and molecular indicators revealed how land-use intensification modifies SOM and microbial processes in Pampas soils. Instituto de Suelos Fil: Barbero, Florencia M. Universidad Nacional de Córdoba. Instituto Multidisciplinario de Biología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Ciencia y Tecnología de los Alimentos; Argentina Fil: Verdenelli, Romina. Universidad Nacional de Córdoba. Instituto Multidisciplinario de Biología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Ciencia y Tecnología de los Alimentos; Argentina Fil: Domichin; María F. Universidad Nacional de Córdoba. Instituto Multidisciplinario de Biología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Ciencia y Tecnología de los Alimentos; Argentina Fil: Frasier, Ileana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Restovich, Silvina B. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina Fil: Serri, Dannae Lilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Campilongo Mancilla, Ernesto Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Faggioli, Valeria S. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria; Argentina Fil: Iriarte, Ana G. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Fisico-Química. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina Fil: Vargas Gil, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Meriles, José M. Universidad Nacional de Córdoba. Instituto Multidisciplinario de Biología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Ciencia y Tecnología de los Alimentos; Argentina 2025-12-22T16:29:48Z 2025-12-22T16:29:48Z 2025-10-24 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/24712 https://www.mdpi.com/2073-4395/15/11/2469 2073-4395 https://doi.org/10.3390/agronomy15112469 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 MDPI Agronomy 15 (11) : 2469. (2025) |
| spellingShingle | Soil Organic Matter Enzyme Activity High-throughput Sequencing Materia Orgánica del Suelo Actividad Enzimática Secuenciación de Alto Rendimiento Argentina Land-use Intensification Fungal Community Structure Intensificación del Uso de la Tierra Estructura de la Comunidad Fúngica Región Pampeana Barbero, Florencia Magali Verdenelli, Romina Aylén Dominchin, María Florencia Frasier, Ileana Restovich, Silvina Beatriz Serri, Dannae Lilia Campilongo Mancilla, Ernesto Javier Faggioli, Valeria Soledad Iriarte, Ana G. Vargas Gil, Silvina Meriles, José Manuel Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas |
| title | Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas |
| title_full | Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas |
| title_fullStr | Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas |
| title_full_unstemmed | Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas |
| title_short | Exploring organic matter, soil enzymes, and fungal communities under land - use intensification in the Argentine Pampas |
| title_sort | exploring organic matter soil enzymes and fungal communities under land use intensification in the argentine pampas |
| topic | Soil Organic Matter Enzyme Activity High-throughput Sequencing Materia Orgánica del Suelo Actividad Enzimática Secuenciación de Alto Rendimiento Argentina Land-use Intensification Fungal Community Structure Intensificación del Uso de la Tierra Estructura de la Comunidad Fúngica Región Pampeana |
| url | http://hdl.handle.net/20.500.12123/24712 https://www.mdpi.com/2073-4395/15/11/2469 https://doi.org/10.3390/agronomy15112469 |
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