Culturable fungi associated with wood decay of picea abies in subalpine forest soils: A field-mesocosm case study

Claudia M. Oliveira Longa*, Davide Francioli, Maria Gómez-Brandón, Judith Ascher-Jenull, Tommaso Bardelli, Giacomo Pietramellara, Markus Egli, Giacomo Sartori, Heribert Insam

*Corresponding author for this work

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Abstract

Fungi are the principal wood decomposers in forest ecosystems and their activity provides wood necromass to other living organisms. However, the wood decay mechanisms and the associated microbial community are largely unknown, especially in Alpine areas. In this study, the culturable fraction of fungal communities associated with the decomposition of Norway spruce (Picea abies [L.] Karst) deadwood in subalpine forest soils were determined using microbiological methods coupled with molecular identification. Fungal communities were evaluated using in-field mesocosms after one year of exposition of P. abies wood blocks along an altitudinal gradient ranging from 1200 up to 2000 m a.s.l. comprising eight subalpine sites, four of them located at north-and other four at south-facing slopes. Although many saprotrophic species were isolated from the wood blocks, several white-rot species as the pathogenic fungi Armillaria cepistipes and Heterobasidion annosum, along with soft-rot fungi such as Lecytophora sp. were identified. Our results further indicated that the wood-inhabiting fungal community was mainly influenced by topographic features and by the chemical properties of the wood blocks, providing first insights into the effect of different slope exposure on the deadwood mycobiome in the subalpine forest ecosystem.

Original languageEnglish
Pages (from-to)781-785
JournalIForest
Volume11
Issue number6
DOIs
Publication statusPublished - 1 Dec 2018

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Keywords

  • Basidiomycota
  • Norway Spruce
  • Slope Exposure
  • Subalpine Forest
  • Wood Decomposition
  • Wood-inhabiting Fungi

Cite this

Oliveira Longa, C. M., Francioli, D., Gómez-Brandón, M., Ascher-Jenull, J., Bardelli, T., Pietramellara, G., ... Insam, H. (2018). Culturable fungi associated with wood decay of picea abies in subalpine forest soils: A field-mesocosm case study. IForest, 11(6), 781-785. https://doi.org/10.3832/ifor2846-011