Ectomycorrhizal fungi and soil enzymes exhibit contrasting patterns along elevation gradients in southern Patagonia

Autor: Truong, Camille, Gabbarini, Luciano Andres, Corrales, Adriana, Mujic, Alija B., Escobar, Julio Martin, Moretto, Alicia Susana, Smith, Matthew E.
Rok vydání: 2019
Předmět:
0106 biological sciences
0301 basic medicine
Physiology
Plant Science
01 natural sciences
purl.org/becyt/ford/1 [https]
Soil
Temperate forest
Abundance (ecology)
Mycorrhizae
Soil pH
Patagonia
Chile
Tierra del fuego [(prv) argentina]
ECTOMYCORRHIZAS
2. Zero hunger
Fungus
Geography
Ecology
Edaphic
Biodiversity
Vegetation
Deciduous forest
Chemistry
PLANT-FUNGI INTERACTION
Ribosome dna
SOUTHERN TEMPERATE FOREST
Nothofagus pumilio
CIENCIAS NATURALES Y EXACTAS
Southern temperate forests
Argentina
NUTRIENT CYCLING
Environment
Biology
DNA
Ribosomal
Ciencias Biológicas
03 medical and health sciences
ribosomal
Microbial community
Genetics
Environmental gradient
purl.org/becyt/ford/1.6 [https]
NOTHOFAGACEAE
Transect
Base Sequence
Fungi
Dna
Soil carbon
Ecología
15. Life on land
biology.organism_classification
Base sequence
Ectomycorrhiza
030104 developmental biology
Plant–fungi interactions
Elevation
Soil chemistry
Species richness
Mycorrhiza
Nucleotide sequence
010606 plant biology & botany
Zdroj: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Repositorio EdocUR-U. Rosario
Universidad del Rosario
instacron:Universidad del Rosario
ISSN: 1469-8137
0028-646X
DOI: 10.1111/nph.15714
Popis: The biological and functional diversity of ectomycorrhizal (ECM) associations remain largely unknown in South America. In Patagonia, the ECM tree Nothofagus pumilio forms monospecific forests along mountain slopes without confounding effects of vegetation on plant fungi interactions.To determine how fungal diversity and function are linked to elevation, we characterized fungal communities, edaphic variables, and eight extracellular enzyme activities along six elevation transects in Tierra del Fuego (Argentina and Chile). We also tested whether pairing ITS1 rDNA Illumina sequences generated taxonomic biases related to sequence length.Fungal community shifts across elevations were mediated primarily by soil pH with the most species‐rich fungal families occurring mostly within a narrow pH range. By contrast, enzyme activities were minimally influenced by elevation but correlated with soil factors, especially total soil carbon. The activity of leucine aminopeptidase was positively correlated with ECM fungal richness and abundance, and acid phosphatase was correlated with nonECM fungal abundance. Several fungal lineages were undetected when using exclusively paired or unpaired forward ITS1 sequences, and these taxonomic biases need reconsideration for future studies.Our results suggest that soil fungi in N. pumilio forests are functionally similar across elevations and that these diverse communities help to maintain nutrient mobilization across the elevation gradient. The biological and functional diversity of ectomycorrhizal (ECM) associations remain largely unknown in South America. In Patagonia, the ECM tree Nothofagus pumilio forms monospecific forests along mountain slopes without confounding effects of vegetation on plant fungi interactions.To determine how fungal diversity and function are linked to elevation, we characterized fungal communities, edaphic variables, and eight extracellular enzyme activities along six elevation transects in Tierra del Fuego (Argentina and Chile). We also tested whether pairing ITS1 rDNA Illumina sequences generated taxonomic biases related to sequence length.Fungal community shifts across elevations were mediated primarily by soil pH with the most species‐rich fungal families occurring mostly within a narrow pH range. By contrast, enzyme activities were minimally influenced by elevation but correlated with soil factors, especially total soil carbon. The activity of leucine aminopeptidase was positively correlated with ECM fungal richness and abundance, and acid phosphatase was correlated with nonECM fungal abundance. Several fungal lineages were undetected when using exclusively paired or unpaired forward ITS1 sequences, and these taxonomic biases need reconsideration for future studies.Our results suggest that soil fungi in N. pumilio forests are functionally similar across elevations and that these diverse communities help to maintain nutrient mobilization across the elevation gradient. The biological and functional diversity of ectomycorrhizal (ECM) associations remain largely unknown in South America. In Patagonia, the ECM tree Nothofagus pumilio forms monospecific forests along mountain slopes without confounding effects of vegetation on plant fungi interactions.To determine how fungal diversity and function are linked to elevation, we characterized fungal communities, edaphic variables, and eight extracellular enzyme activities along six elevation transects in Tierra del Fuego (Argentina and Chile). We also tested whether pairing ITS1 rDNA Illumina sequences generated taxonomic biases related to sequence length.Fungal community shifts across elevations were mediated primarily by soil pH with the most species‐rich fungal families occurring mostly within a narrow pH range. By contrast, enzyme activities were minimally influenced by elevation but correlated with soil factors, especially total soil carbon. The activity of leucine aminopeptidase was positively correlated with ECM fungal richness and abundance, and acid phosphatase was correlated with nonECM fungal abundance. Several fungal lineages were undetected when using exclusively paired or unpaired forward ITS1 sequences, and these taxonomic biases need reconsideration for future studies.Our results suggest that soil fungi in N. pumilio forests are functionally similar across elevations and that these diverse communities help to maintain nutrient mobilization across the elevation gradient. Fil: Truong, Camille. University of Florida; Estados Unidos Fil: Truong, Camille. University of Florida; Estados Unidos Fil: Truong, Camille. University of Florida; Estados Unidos Fil: Gabbarini, Luciano Andres. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gabbarini, Luciano Andres. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gabbarini, Luciano Andres. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Corrales, Adriana. Universidad Colegio Mayor de Nuestra Señora del Rosario; Colombia Fil: Corrales, Adriana. Universidad Colegio Mayor de Nuestra Señora del Rosario; Colombia Fil: Corrales, Adriana. Universidad Colegio Mayor de Nuestra Señora del Rosario; Colombia Fil: Mujic, Alija B.. University of Florida; Estados Unidos Fil: Mujic, Alija B.. University of Florida; Estados Unidos Fil: Mujic, Alija B.. University of Florida; Estados Unidos Fil: Escobar, Julio Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Escobar, Julio Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Escobar, Julio Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Moretto, Alicia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina Fil: Moretto, Alicia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina Fil: Moretto, Alicia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina Fil: Smith, Matthew E.. University of Florida; Estados Unidos Fil: Smith, Matthew E.. University of Florida; Estados Unidos Fil: Smith, Matthew E.. University of Florida; Estados Unidos
Databáze: OpenAIRE
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