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

• Main Authors: Carrón, Ayelén I., Garibaldi, Lucas Alejandro, Fontenla, Sonia
• Language: English
• Published: 2019
• Subjects: Ectomycorrhizal Fungi; Nothofagus Antarctica; Seasons and Soil Characteristics; Argentina; Bray; Garibaldi; Sonia; Antarc*; Antarctica
• Online Access: https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3486; https://hdl.handle.net/20.500.12049/3486

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 ...