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Research article - Peer-reviewed, 2022

Endophytes dominate fungal communities in six-year-old veteranisation wounds in living oak trunks

Menkis, Audrius; Redr, Deanne; Bengtsson, Vikki; Hedin, Jonas; Niklasson, Mats; Nordén, Björn; Dahlberg, Anders

Abstract

Old trees are rare in the landscape, as are many of their associated species. Veteranisation is a method by which attempts are made to create microhabitats, otherwise found only in old trees, in younger trees at an earlier stage than would occur naturally. Here, we analysed the early fungal succession in 6 y-old veteranisation wounds in ca. 100 y old living oak trunks by DNA-barcoding of the wood at eight sites in Sweden and Norway. We hypothesised basidiomycetes would be most abundant, and exposed sapwood and heartwood would select for different communities. We identified 686 fungal taxa, mainly ascomycetes, with a large overlap in species composition and surprisingly similar species richness, i.e. 325 vs. 308-360, between intact and different types of damaged wood, respectively. Endophytes continued to be present and common in damaged wood. The results demonstrate that damage to sapwood and heartwood partly select for different fungi and that 6 y is too early to evaluate if veteranisation can positively favour fungi of conservation interest.(c) 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Keywords

Ascomycetes; Basidiomycetes; Endophytes; Fungal communities; Moristroma quercinum; Quercus; Veteranisation; Wood decay

Published in

Fungal Ecology
2022, Volume: 59, article number: 101020