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Ectomycorrhizal fungal communities associated to Nothofagus species in Northern Patagonia

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Abstract

Ectomycorrhizal fungi constitute an important component of soil biota in Nothofagus forests in Patagonia. However, ectomycorrhizal fungal community is poorly known in this region. Here, we assess biodiversity and community compositions of ectomycorrhizal fungal species associated with Nothofagus dombeyi, N. obliqua and N. alpina. We selected three monospecific Nothofagus forest sites for each species within the boundaries of the Lanin National Park in Northern Patagonia. Ectomycorrhizal fungal species were identified based on morphotyping and rDNA (ITS and 28S rDNA) sequence analysis using both universal and taxon-specific primers. Contrary to previous studies on congeneric host trees, our results showed no significant differences among Nothofagus forest types in terms of fungal biodiversity and community composition. However, altitude had a strong effect on the structure of the ectomycorrhizal fungal community associated with Nothofagus spp.

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Acknowledgments

Financial support was provided by CONICET (Consejo Nacional de Investigaciones Científicas y Tecnológicas), grant PIP No 6193, which also provided a research position for EN and CU, as well as a fellowship for SL. LT acknowledges support from ESF (Estonian Science Foundation), grant 9286 and FIBIR (Centre of Excellence for Frontiers in Biodiversity Research). We thank to N. Pastor and L. Fernandez for their assistance, and M. Bahram for help with multivariate analysis. We thank the Lanin National Park personnel for facilitating sampling and lodging at the park.

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Correspondence to Eduardo Nouhra.

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Nouhra, E., Urcelay, C., Longo, S. et al. Ectomycorrhizal fungal communities associated to Nothofagus species in Northern Patagonia. Mycorrhiza 23, 487–496 (2013). https://doi.org/10.1007/s00572-013-0490-2

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