Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System

Autores
Aban, Carla Luciana; Larama, Giovanni; Ducci, María Antonella; Fallard, Ana; Ortiz, Javier; Vargas Gil, Silvina; Perez Brandan, Carolina
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Intensive agricultural practices based on continuous monocropping and prolonged bare-soil fallows have contributed to soil degradation and loss of biological functioning. Replacing fallows with cover crops (CCs) is a promising strategy to restore soil quality, yet their legacy effects on rhizosphere fungal communities remain poorly understood. This study evaluated the legacy effects of Urochloa (syn. Brachiaria) brizantha cover cropping on rhizosphere fungal communities, as well as soil physicochemical and biological properties, in a degraded common bean system. A field experiment with a randomized complete block design included: bare fallow (BM), one (B1) or two (B2) CC cycles before bean, a perennial pasture (PB), and a pristine soil reference (PS). High-throughput sequencing showed that Urochloa-based treatments significantly shifted fungal community composition compared to BM, increasing saprotrophic and beneficial taxa (e.g., Mortierella, Penicillium, Coprinellus) and reducing potential pathogens such as Fusarium. These changes were associated with higher soil organic carbon, aggregate stability, microbial biomass, and enzyme activities, especially in B2 and PB. Indicator taxa identified by LEfSe were linked to organic matter decomposition and nutrient cycling. Multivariate analyses revealed strong associations between fungal community structure and soil properties. Overall, U. brizantha cover cropping induced measurable legacy effects, promoting soil biological recovery even after short-term implementation.
EEA Salta
Fil: Aban, Carla Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Aban, Carla Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Larama, Giovanni. Universidad de La Frontera. Biocontrol Research Laboratory; Chile
Fil: Larama, Giovanni. Biome Quest SpA; Chile
Fil: Ducci, María Antonella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Ducci, María Antonella. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Fallard, Ana. Instituto de Investigaciones Agropecuarias (INIA Carillanca); Chile
Fil: Ortiz, Javier. Universidad de La Frontera. Facultad de Ciencias Agropecuarias y Medioambiente. Laboratorio de Biorremediación; Chile
Fil: Vargas Gil, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina
Fil: Vargas Gil, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina
Fil: Pérez Brandan, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Pérez Brandan, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fuente
Journal of Fungi 12 (7) : 456. (June 2026)
Materia
Urochloa
Cover Plants
Common Beans
Rhizosphere
Soil Chemicophysical Properties
Plantas de Cobertura
Fríjol (Phaseolus)
Rizosfera
Propiedades Físico-químicas Suelo
Urochloa brizantha
Cultivos de Cobertura
Cover Crops
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/27183
Acceder
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oai_identifier_str oai:localhost:20.500.12123/27183
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean SystemAban, Carla LucianaLarama, GiovanniDucci, María AntonellaFallard, AnaOrtiz, JavierVargas Gil, SilvinaPerez Brandan, CarolinaUrochloaCover PlantsCommon BeansRhizosphereSoil Chemicophysical PropertiesPlantas de CoberturaFríjol (Phaseolus)RizosferaPropiedades Físico-químicas SueloUrochloa brizanthaCultivos de CoberturaCover CropsIntensive agricultural practices based on continuous monocropping and prolonged bare-soil fallows have contributed to soil degradation and loss of biological functioning. Replacing fallows with cover crops (CCs) is a promising strategy to restore soil quality, yet their legacy effects on rhizosphere fungal communities remain poorly understood. This study evaluated the legacy effects of Urochloa (syn. Brachiaria) brizantha cover cropping on rhizosphere fungal communities, as well as soil physicochemical and biological properties, in a degraded common bean system. A field experiment with a randomized complete block design included: bare fallow (BM), one (B1) or two (B2) CC cycles before bean, a perennial pasture (PB), and a pristine soil reference (PS). High-throughput sequencing showed that Urochloa-based treatments significantly shifted fungal community composition compared to BM, increasing saprotrophic and beneficial taxa (e.g., Mortierella, Penicillium, Coprinellus) and reducing potential pathogens such as Fusarium. These changes were associated with higher soil organic carbon, aggregate stability, microbial biomass, and enzyme activities, especially in B2 and PB. Indicator taxa identified by LEfSe were linked to organic matter decomposition and nutrient cycling. Multivariate analyses revealed strong associations between fungal community structure and soil properties. Overall, U. brizantha cover cropping induced measurable legacy effects, promoting soil biological recovery even after short-term implementation.EEA SaltaFil: Aban, Carla Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaFil: Aban, Carla Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaFil: Larama, Giovanni. Universidad de La Frontera. Biocontrol Research Laboratory; ChileFil: Larama, Giovanni. Biome Quest SpA; ChileFil: Ducci, María Antonella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaFil: Ducci, María Antonella. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaFil: Fallard, Ana. Instituto de Investigaciones Agropecuarias (INIA Carillanca); ChileFil: Ortiz, Javier. Universidad de La Frontera. Facultad de Ciencias Agropecuarias y Medioambiente. Laboratorio de Biorremediación; ChileFil: Vargas Gil, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; ArgentinaFil: Vargas Gil, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); ArgentinaFil: Pérez Brandan, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaFil: Pérez Brandan, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaMDPI2026-07-29T12:03:10Z2026-07-29T12:03:10Z2026-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/27183https://www.mdpi.com/2309-608X/12/7/4562309-608Xhttps://doi.org/10.3390/jof12070456Journal of Fungi 12 (7) : 456. (June 2026)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/2023-PD-L03-I093, Fertilidad química, física y biológica del suelo: estrategias para mitigar y restaurar procesos de degradacióninfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-09-24T11:43:36Zoai:localhost:20.500.12123/27183instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-09-24 11:43:36.951INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
title Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
spellingShingle Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
Aban, Carla Luciana
Urochloa
Cover Plants
Common Beans
Rhizosphere
Soil Chemicophysical Properties
Plantas de Cobertura
Fríjol (Phaseolus)
Rizosfera
Propiedades Físico-químicas Suelo
Urochloa brizantha
Cultivos de Cobertura
Cover Crops
title_short Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
title_full Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
title_fullStr Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
title_full_unstemmed Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
title_sort Legacy Effects of Urochloa brizantha Cover Cropping on Rhizosphere Fungal Communities and Soil Properties in a Degraded Common Bean System
dc.creator.none.fl_str_mv Aban, Carla Luciana
Larama, Giovanni
Ducci, María Antonella
Fallard, Ana
Ortiz, Javier
Vargas Gil, Silvina
Perez Brandan, Carolina
author Aban, Carla Luciana
author_facet Aban, Carla Luciana
Larama, Giovanni
Ducci, María Antonella
Fallard, Ana
Ortiz, Javier
Vargas Gil, Silvina
Perez Brandan, Carolina
author_role author
author2 Larama, Giovanni
Ducci, María Antonella
Fallard, Ana
Ortiz, Javier
Vargas Gil, Silvina
Perez Brandan, Carolina
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Urochloa
Cover Plants
Common Beans
Rhizosphere
Soil Chemicophysical Properties
Plantas de Cobertura
Fríjol (Phaseolus)
Rizosfera
Propiedades Físico-químicas Suelo
Urochloa brizantha
Cultivos de Cobertura
Cover Crops
topic Urochloa
Cover Plants
Common Beans
Rhizosphere
Soil Chemicophysical Properties
Plantas de Cobertura
Fríjol (Phaseolus)
Rizosfera
Propiedades Físico-químicas Suelo
Urochloa brizantha
Cultivos de Cobertura
Cover Crops
dc.description.none.fl_txt_mv Intensive agricultural practices based on continuous monocropping and prolonged bare-soil fallows have contributed to soil degradation and loss of biological functioning. Replacing fallows with cover crops (CCs) is a promising strategy to restore soil quality, yet their legacy effects on rhizosphere fungal communities remain poorly understood. This study evaluated the legacy effects of Urochloa (syn. Brachiaria) brizantha cover cropping on rhizosphere fungal communities, as well as soil physicochemical and biological properties, in a degraded common bean system. A field experiment with a randomized complete block design included: bare fallow (BM), one (B1) or two (B2) CC cycles before bean, a perennial pasture (PB), and a pristine soil reference (PS). High-throughput sequencing showed that Urochloa-based treatments significantly shifted fungal community composition compared to BM, increasing saprotrophic and beneficial taxa (e.g., Mortierella, Penicillium, Coprinellus) and reducing potential pathogens such as Fusarium. These changes were associated with higher soil organic carbon, aggregate stability, microbial biomass, and enzyme activities, especially in B2 and PB. Indicator taxa identified by LEfSe were linked to organic matter decomposition and nutrient cycling. Multivariate analyses revealed strong associations between fungal community structure and soil properties. Overall, U. brizantha cover cropping induced measurable legacy effects, promoting soil biological recovery even after short-term implementation.
EEA Salta
Fil: Aban, Carla Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Aban, Carla Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Larama, Giovanni. Universidad de La Frontera. Biocontrol Research Laboratory; Chile
Fil: Larama, Giovanni. Biome Quest SpA; Chile
Fil: Ducci, María Antonella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Ducci, María Antonella. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Fallard, Ana. Instituto de Investigaciones Agropecuarias (INIA Carillanca); Chile
Fil: Ortiz, Javier. Universidad de La Frontera. Facultad de Ciencias Agropecuarias y Medioambiente. Laboratorio de Biorremediación; Chile
Fil: Vargas Gil, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina
Fil: Vargas Gil, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina
Fil: Pérez Brandan, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Pérez Brandan, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
description Intensive agricultural practices based on continuous monocropping and prolonged bare-soil fallows have contributed to soil degradation and loss of biological functioning. Replacing fallows with cover crops (CCs) is a promising strategy to restore soil quality, yet their legacy effects on rhizosphere fungal communities remain poorly understood. This study evaluated the legacy effects of Urochloa (syn. Brachiaria) brizantha cover cropping on rhizosphere fungal communities, as well as soil physicochemical and biological properties, in a degraded common bean system. A field experiment with a randomized complete block design included: bare fallow (BM), one (B1) or two (B2) CC cycles before bean, a perennial pasture (PB), and a pristine soil reference (PS). High-throughput sequencing showed that Urochloa-based treatments significantly shifted fungal community composition compared to BM, increasing saprotrophic and beneficial taxa (e.g., Mortierella, Penicillium, Coprinellus) and reducing potential pathogens such as Fusarium. These changes were associated with higher soil organic carbon, aggregate stability, microbial biomass, and enzyme activities, especially in B2 and PB. Indicator taxa identified by LEfSe were linked to organic matter decomposition and nutrient cycling. Multivariate analyses revealed strong associations between fungal community structure and soil properties. Overall, U. brizantha cover cropping induced measurable legacy effects, promoting soil biological recovery even after short-term implementation.
publishDate 2026
dc.date.none.fl_str_mv 2026-07-29T12:03:10Z
2026-07-29T12:03:10Z
2026-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/27183
https://www.mdpi.com/2309-608X/12/7/456
2309-608X
https://doi.org/10.3390/jof12070456
url http://hdl.handle.net/20.500.12123/27183
https://www.mdpi.com/2309-608X/12/7/456
https://doi.org/10.3390/jof12070456
identifier_str_mv 2309-608X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/2023-PD-L03-I093, Fertilidad química, física y biológica del suelo: estrategias para mitigar y restaurar procesos de degradación
dc.rights.none.fl_str_mv 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)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Journal of Fungi 12 (7) : 456. (June 2026)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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