Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland

Autores
Carrón, Ayelén I.; Garibaldi, Lucas Alejandro; Fontenla, Sonia
Año de publicación
2019
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Fil: Carrón, Ayelén I. Universidad Nacional del Comahue. CRUB. Laboratorio de Microbiología Aplicada y Biotecnología vegetal y del suelo; Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural; Argentina
Fil: Fontenla, Sonia. Universidad Nacional del Comahue. CRUB. Laboratorio de Microbiología Aplicada y Biotecnología vegetal y del suelo; Argentina.
Fil: Carrón, Ayelén I. IPATEC-CONICET; Argentina.
Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
The shrublands of the Andean-Patagonian region present high biodiversity and provide multiple ecosystem services, being one of the ecosystems with higher forestry activities in the region. Several natural and anthropogenic factors influence the soil fungus community. These microorganisms play a central role in ecosystem functioning and interaction with different species. Our objective was to evaluate the effects of forest management and season (autumn vs. summer) in the soil fungal community and their ecological function. Eight experimental plots were established in a native shrubland combining: thinning intensity (basal area removed 70, 50, 30 and 0%) and implantation of native tree species (implanted and not implanted). A soil sample/plot was collected in autumn and summer, one year after the forest management. We determined soil community characteristics and ectomycorrhizal occurrence of a dominant native tree (N. antarctica). The fungal soil community analysis was performed with the Roche Sequencing using the entire ITS region of fungal nrDNA (ITS1F-ITS4). The taxonomic classification were RAPD with UNITE/QIIME database and were assigned a trophic mode using FUNGuild database. Then, a NMDS test was performed using Bray-Curtis dissimilarity. All N. antarctica adults had high values of ectomycorrhizal colonization (~80%) with non-significant differences between plots. At fungal classes, only a correlation was observed between taxonomic diversity and the season. The abundance of Eurotiomycetes and Dothideomycetes (including other mycorrhizal fungi, such as Cenococccum) was higher in autumn, while Sordariomycetes, Tremellomycetes and Leotiomycetes abundance was higher in summer. When the trophic modes were analyzed there were no correlation between them, the season, the thinning or the implantation. The saprotrophs and sapro-simbiotrophs were the most abundant trophic mode, represented by the genera Hygrocybe and Mortierella in both seasons. After this general behavior, the pathogens and symbionts that followed them in abundance presented different trends between seasons. Autumn was associated with the pathogen mode and summer with the symbiotrophic mode, particularly represented by ectomycorrhizal fungi with greater abundance of Cortinarius, Descomyces and Inocybe. The results suggest that in a Patagonian shrubland seasonal factors influence fungal diversity, at the class and gender level, and ecological function. Management factors do not appear to be determinant after one year of established thinning intensity and implantation of native tree species.
Materia
Ectomycorrhizal Fungi
Nothofagus Antarctica
Seasons and Soil Characteristics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/3486

id RIDUNRN_9207f1059204050ae3cf7bfd64aab2f0
oai_identifier_str oai:rid.unrn.edu.ar:20.500.12049/3486
network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrublandCarrón, Ayelén I.Garibaldi, Lucas AlejandroFontenla, SoniaEctomycorrhizal FungiNothofagus AntarcticaSeasons and Soil CharacteristicsFil: Carrón, Ayelén I. Universidad Nacional del Comahue. CRUB. Laboratorio de Microbiología Aplicada y Biotecnología vegetal y del suelo; Argentina.Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural; ArgentinaFil: Fontenla, Sonia. Universidad Nacional del Comahue. CRUB. Laboratorio de Microbiología Aplicada y Biotecnología vegetal y del suelo; Argentina.Fil: Carrón, Ayelén I. IPATEC-CONICET; Argentina.Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.The shrublands of the Andean-Patagonian region present high biodiversity and provide multiple ecosystem services, being one of the ecosystems with higher forestry activities in the region. Several natural and anthropogenic factors influence the soil fungus community. These microorganisms play a central role in ecosystem functioning and interaction with different species. Our objective was to evaluate the effects of forest management and season (autumn vs. summer) in the soil fungal community and their ecological function. Eight experimental plots were established in a native shrubland combining: thinning intensity (basal area removed 70, 50, 30 and 0%) and implantation of native tree species (implanted and not implanted). A soil sample/plot was collected in autumn and summer, one year after the forest management. We determined soil community characteristics and ectomycorrhizal occurrence of a dominant native tree (N. antarctica). The fungal soil community analysis was performed with the Roche Sequencing using the entire ITS region of fungal nrDNA (ITS1F-ITS4). The taxonomic classification were RAPD with UNITE/QIIME database and were assigned a trophic mode using FUNGuild database. Then, a NMDS test was performed using Bray-Curtis dissimilarity. All N. antarctica adults had high values of ectomycorrhizal colonization (~80%) with non-significant differences between plots. At fungal classes, only a correlation was observed between taxonomic diversity and the season. The abundance of Eurotiomycetes and Dothideomycetes (including other mycorrhizal fungi, such as Cenococccum) was higher in autumn, while Sordariomycetes, Tremellomycetes and Leotiomycetes abundance was higher in summer. When the trophic modes were analyzed there were no correlation between them, the season, the thinning or the implantation. The saprotrophs and sapro-simbiotrophs were the most abundant trophic mode, represented by the genera Hygrocybe and Mortierella in both seasons. After this general behavior, the pathogens and symbionts that followed them in abundance presented different trends between seasons. Autumn was associated with the pathogen mode and summer with the symbiotrophic mode, particularly represented by ectomycorrhizal fungi with greater abundance of Cortinarius, Descomyces and Inocybe. The results suggest that in a Patagonian shrubland seasonal factors influence fungal diversity, at the class and gender level, and ecological function. Management factors do not appear to be determinant after one year of established thinning intensity and implantation of native tree species.2019-03info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/3486engII International Symposium - Mycorrhizal Symbiosis in South Americainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:29:13Zoai:rid.unrn.edu.ar:20.500.12049/3486instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:29:13.863RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
title Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
spellingShingle Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
Carrón, Ayelén I.
Ectomycorrhizal Fungi
Nothofagus Antarctica
Seasons and Soil Characteristics
title_short Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
title_full Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
title_fullStr Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
title_full_unstemmed Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
title_sort Forest management and seasonal effects on the diversity and ecological function of soil fungi in a Northwestern Patagonian shrubland
dc.creator.none.fl_str_mv Carrón, Ayelén I.
Garibaldi, Lucas Alejandro
Fontenla, Sonia
author Carrón, Ayelén I.
author_facet Carrón, Ayelén I.
Garibaldi, Lucas Alejandro
Fontenla, Sonia
author_role author
author2 Garibaldi, Lucas Alejandro
Fontenla, Sonia
author2_role author
author
dc.subject.none.fl_str_mv Ectomycorrhizal Fungi
Nothofagus Antarctica
Seasons and Soil Characteristics
topic Ectomycorrhizal Fungi
Nothofagus Antarctica
Seasons and Soil Characteristics
dc.description.none.fl_txt_mv Fil: Carrón, Ayelén I. Universidad Nacional del Comahue. CRUB. Laboratorio de Microbiología Aplicada y Biotecnología vegetal y del suelo; Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural; Argentina
Fil: Fontenla, Sonia. Universidad Nacional del Comahue. CRUB. Laboratorio de Microbiología Aplicada y Biotecnología vegetal y del suelo; Argentina.
Fil: Carrón, Ayelén I. IPATEC-CONICET; Argentina.
Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
The shrublands of the Andean-Patagonian region present high biodiversity and provide multiple ecosystem services, being one of the ecosystems with higher forestry activities in the region. Several natural and anthropogenic factors influence the soil fungus community. These microorganisms play a central role in ecosystem functioning and interaction with different species. Our objective was to evaluate the effects of forest management and season (autumn vs. summer) in the soil fungal community and their ecological function. Eight experimental plots were established in a native shrubland combining: thinning intensity (basal area removed 70, 50, 30 and 0%) and implantation of native tree species (implanted and not implanted). A soil sample/plot was collected in autumn and summer, one year after the forest management. We determined soil community characteristics and ectomycorrhizal occurrence of a dominant native tree (N. antarctica). The fungal soil community analysis was performed with the Roche Sequencing using the entire ITS region of fungal nrDNA (ITS1F-ITS4). The taxonomic classification were RAPD with UNITE/QIIME database and were assigned a trophic mode using FUNGuild database. Then, a NMDS test was performed using Bray-Curtis dissimilarity. All N. antarctica adults had high values of ectomycorrhizal colonization (~80%) with non-significant differences between plots. At fungal classes, only a correlation was observed between taxonomic diversity and the season. The abundance of Eurotiomycetes and Dothideomycetes (including other mycorrhizal fungi, such as Cenococccum) was higher in autumn, while Sordariomycetes, Tremellomycetes and Leotiomycetes abundance was higher in summer. When the trophic modes were analyzed there were no correlation between them, the season, the thinning or the implantation. The saprotrophs and sapro-simbiotrophs were the most abundant trophic mode, represented by the genera Hygrocybe and Mortierella in both seasons. After this general behavior, the pathogens and symbionts that followed them in abundance presented different trends between seasons. Autumn was associated with the pathogen mode and summer with the symbiotrophic mode, particularly represented by ectomycorrhizal fungi with greater abundance of Cortinarius, Descomyces and Inocybe. The results suggest that in a Patagonian shrubland seasonal factors influence fungal diversity, at the class and gender level, and ecological function. Management factors do not appear to be determinant after one year of established thinning intensity and implantation of native tree species.
description Fil: Carrón, Ayelén I. Universidad Nacional del Comahue. CRUB. Laboratorio de Microbiología Aplicada y Biotecnología vegetal y del suelo; Argentina.
publishDate 2019
dc.date.none.fl_str_mv 2019-03
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3486
url https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3486
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv II International Symposium - Mycorrhizal Symbiosis in South America
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
_version_ 1844621615333113856
score 12.559606