Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization

Autores
Toledo, Santiago; Fontenla, Sonia Beatriz; Peri, Pablo Luis
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Rangelands provide different ecosystem services to satisfy human needs. Although grazing management in southern Patagonia is mostly characterized by extensive continuous grazing, rotational grazing management may improve plant productivity and its associated microbiome. Arbuscular mycorrhizal (AM) symbioses play an important role in the functioning of arid rangelands. However, in most arid and semiarid grasslands, little is known about the environment-plant-symbiont interaction under different defoliation frequencies and contrasting growth conditions. In this context, the objective of the present study was to evaluate the response of Rytidosperma virescens native grass and the associated AM fungi under different defoliation frequency treatments (plants undefoliated, two clippings with 50-d intervals between defoliations, four clippings with 30-d intervals, and six clippings with 21-d intervals) and two growth conditions (field and greenhouse) in a 150-d experiment. Defoliation frequency with 21-d clipping intervals negatively affected plants and AM colonization. We found a negative linear relationship between AM colonization and removal of aboveground biomass and a positive relationship with root biomass and leaf area of R. virescens plants. We determined that the appropriate recovery period for rotational grazing systems should be at least 50 d (threshold) to optimize forage production and AM symbiosis during spring-summer seasons. Sustainable grazing management practices should be designed to improve or restore AM communities to maintain positive feedback with plant development.
EEA Santa Cruz
Fil: Toledo, Santiago. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Toledo, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. CIT Santa Cruz; Argentina.
Fil: Toledo, Santiago: Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.
Fil: Fontenla, Sonia Beatriz. Universidad Nacional del Comahue. Laboratorio de Biotecnología y Microbiología Aplicada; Argentina.
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fuente
Rangeland Ecology & Management 84: 1-9. (September 2022)
Materia
Mycorrhizae
Arbuscular Mycorrhiza
Grasslands
Defoliation
Grazing Intensity
Symbiosis
Rotational Grazing
Micorrizas
Micorrizas Arbusculares
Desfoliación
Intensidad de Pastoreo
Simbiosis
Pastoreo Rotacional
Santa Cruz (Argentina)
Praderas
Rytidosperma virescens
Pasto Nativo
Frecuencia de Desfoliación
Native Grass
Defoliation Frequency
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
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spelling Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonizationToledo, SantiagoFontenla, Sonia BeatrizPeri, Pablo LuisMycorrhizaeArbuscular MycorrhizaGrasslandsDefoliationGrazing IntensitySymbiosisRotational GrazingMicorrizasMicorrizas ArbuscularesDesfoliaciónIntensidad de PastoreoSimbiosisPastoreo RotacionalSanta Cruz (Argentina)PraderasRytidosperma virescensPasto NativoFrecuencia de DesfoliaciónNative GrassDefoliation FrequencyRangelands provide different ecosystem services to satisfy human needs. Although grazing management in southern Patagonia is mostly characterized by extensive continuous grazing, rotational grazing management may improve plant productivity and its associated microbiome. Arbuscular mycorrhizal (AM) symbioses play an important role in the functioning of arid rangelands. However, in most arid and semiarid grasslands, little is known about the environment-plant-symbiont interaction under different defoliation frequencies and contrasting growth conditions. In this context, the objective of the present study was to evaluate the response of Rytidosperma virescens native grass and the associated AM fungi under different defoliation frequency treatments (plants undefoliated, two clippings with 50-d intervals between defoliations, four clippings with 30-d intervals, and six clippings with 21-d intervals) and two growth conditions (field and greenhouse) in a 150-d experiment. Defoliation frequency with 21-d clipping intervals negatively affected plants and AM colonization. We found a negative linear relationship between AM colonization and removal of aboveground biomass and a positive relationship with root biomass and leaf area of R. virescens plants. We determined that the appropriate recovery period for rotational grazing systems should be at least 50 d (threshold) to optimize forage production and AM symbiosis during spring-summer seasons. Sustainable grazing management practices should be designed to improve or restore AM communities to maintain positive feedback with plant development.EEA Santa CruzFil: Toledo, Santiago. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Toledo, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. CIT Santa Cruz; Argentina.Fil: Toledo, Santiago: Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.Fil: Fontenla, Sonia Beatriz. Universidad Nacional del Comahue. Laboratorio de Biotecnología y Microbiología Aplicada; Argentina.Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Elsevier2022-06-14T15:48:43Z2022-06-14T15:48:43Z2022-06-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/12096https://www.sciencedirect.com/science/article/pii/S1550742422000525Toledo S.; Fontenla S.; Peri P.L. (2022) Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization. Rangeland Ecology & Management 84: 1-9. https://doi.org/10.1016/j.rama.2022.05.003.1550-7424https://doi.org/10.1016/j.rama.2022.05.003Rangeland Ecology & Management 84: 1-9. (September 2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:45:35Zoai:localhost:20.500.12123/12096instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:45:35.953INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
title Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
spellingShingle Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
Toledo, Santiago
Mycorrhizae
Arbuscular Mycorrhiza
Grasslands
Defoliation
Grazing Intensity
Symbiosis
Rotational Grazing
Micorrizas
Micorrizas Arbusculares
Desfoliación
Intensidad de Pastoreo
Simbiosis
Pastoreo Rotacional
Santa Cruz (Argentina)
Praderas
Rytidosperma virescens
Pasto Nativo
Frecuencia de Desfoliación
Native Grass
Defoliation Frequency
title_short Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
title_full Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
title_fullStr Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
title_full_unstemmed Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
title_sort Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
dc.creator.none.fl_str_mv Toledo, Santiago
Fontenla, Sonia Beatriz
Peri, Pablo Luis
author Toledo, Santiago
author_facet Toledo, Santiago
Fontenla, Sonia Beatriz
Peri, Pablo Luis
author_role author
author2 Fontenla, Sonia Beatriz
Peri, Pablo Luis
author2_role author
author
dc.subject.none.fl_str_mv Mycorrhizae
Arbuscular Mycorrhiza
Grasslands
Defoliation
Grazing Intensity
Symbiosis
Rotational Grazing
Micorrizas
Micorrizas Arbusculares
Desfoliación
Intensidad de Pastoreo
Simbiosis
Pastoreo Rotacional
Santa Cruz (Argentina)
Praderas
Rytidosperma virescens
Pasto Nativo
Frecuencia de Desfoliación
Native Grass
Defoliation Frequency
topic Mycorrhizae
Arbuscular Mycorrhiza
Grasslands
Defoliation
Grazing Intensity
Symbiosis
Rotational Grazing
Micorrizas
Micorrizas Arbusculares
Desfoliación
Intensidad de Pastoreo
Simbiosis
Pastoreo Rotacional
Santa Cruz (Argentina)
Praderas
Rytidosperma virescens
Pasto Nativo
Frecuencia de Desfoliación
Native Grass
Defoliation Frequency
dc.description.none.fl_txt_mv Rangelands provide different ecosystem services to satisfy human needs. Although grazing management in southern Patagonia is mostly characterized by extensive continuous grazing, rotational grazing management may improve plant productivity and its associated microbiome. Arbuscular mycorrhizal (AM) symbioses play an important role in the functioning of arid rangelands. However, in most arid and semiarid grasslands, little is known about the environment-plant-symbiont interaction under different defoliation frequencies and contrasting growth conditions. In this context, the objective of the present study was to evaluate the response of Rytidosperma virescens native grass and the associated AM fungi under different defoliation frequency treatments (plants undefoliated, two clippings with 50-d intervals between defoliations, four clippings with 30-d intervals, and six clippings with 21-d intervals) and two growth conditions (field and greenhouse) in a 150-d experiment. Defoliation frequency with 21-d clipping intervals negatively affected plants and AM colonization. We found a negative linear relationship between AM colonization and removal of aboveground biomass and a positive relationship with root biomass and leaf area of R. virescens plants. We determined that the appropriate recovery period for rotational grazing systems should be at least 50 d (threshold) to optimize forage production and AM symbiosis during spring-summer seasons. Sustainable grazing management practices should be designed to improve or restore AM communities to maintain positive feedback with plant development.
EEA Santa Cruz
Fil: Toledo, Santiago. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Toledo, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. CIT Santa Cruz; Argentina.
Fil: Toledo, Santiago: Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.
Fil: Fontenla, Sonia Beatriz. Universidad Nacional del Comahue. Laboratorio de Biotecnología y Microbiología Aplicada; Argentina.
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
description Rangelands provide different ecosystem services to satisfy human needs. Although grazing management in southern Patagonia is mostly characterized by extensive continuous grazing, rotational grazing management may improve plant productivity and its associated microbiome. Arbuscular mycorrhizal (AM) symbioses play an important role in the functioning of arid rangelands. However, in most arid and semiarid grasslands, little is known about the environment-plant-symbiont interaction under different defoliation frequencies and contrasting growth conditions. In this context, the objective of the present study was to evaluate the response of Rytidosperma virescens native grass and the associated AM fungi under different defoliation frequency treatments (plants undefoliated, two clippings with 50-d intervals between defoliations, four clippings with 30-d intervals, and six clippings with 21-d intervals) and two growth conditions (field and greenhouse) in a 150-d experiment. Defoliation frequency with 21-d clipping intervals negatively affected plants and AM colonization. We found a negative linear relationship between AM colonization and removal of aboveground biomass and a positive relationship with root biomass and leaf area of R. virescens plants. We determined that the appropriate recovery period for rotational grazing systems should be at least 50 d (threshold) to optimize forage production and AM symbiosis during spring-summer seasons. Sustainable grazing management practices should be designed to improve or restore AM communities to maintain positive feedback with plant development.
publishDate 2022
dc.date.none.fl_str_mv 2022-06-14T15:48:43Z
2022-06-14T15:48:43Z
2022-06-09
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/20.500.12123/12096
https://www.sciencedirect.com/science/article/pii/S1550742422000525
Toledo S.; Fontenla S.; Peri P.L. (2022) Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization. Rangeland Ecology & Management 84: 1-9. https://doi.org/10.1016/j.rama.2022.05.003.
1550-7424
https://doi.org/10.1016/j.rama.2022.05.003
url http://hdl.handle.net/20.500.12123/12096
https://www.sciencedirect.com/science/article/pii/S1550742422000525
https://doi.org/10.1016/j.rama.2022.05.003
identifier_str_mv Toledo S.; Fontenla S.; Peri P.L. (2022) Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization. Rangeland Ecology & Management 84: 1-9. https://doi.org/10.1016/j.rama.2022.05.003.
1550-7424
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Rangeland Ecology & Management 84: 1-9. (September 2022)
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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score 12.559606

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