This research presents the first description of the ectomycorrhizal (ECM) fungal community of the North American shagbark hickory (Carya ovata) tree growing outside its natural range. The diversity of ECM fungi associated with alien C. ovata stands was compared with the surrounding native oak–hornbeam forests. C. ovata, outside of its natural range, has a high ability to harbor and to retain compatible ECM fungal taxa. Eighty-nine ECM fungal taxa were identified in C. ovata stands along with 76 taxa in the surrounding multi-species native forests. Only 35% of taxa were shared between C. ovata and the surrounding forest, while 38% of taxa were identified only in C. ovata stands and 27% from the surrounding forest. We conclude that the remaining successfully acclimated plantations of exotic Carya trees in Poland may constitute a valuable pool of ECM fungi for native trees and thus contribute to the maintenance of fungal biodiversity.

这项研究首次描述了生长在自然范围之外的北美American皮胡桃木（Carya ovata）树的外生菌根（ECM）真菌群落。将与外来卵形衣原体林分相关的ECM真菌的多样性与周围的原生橡树角树森林进行了比较。Ç。卵形卵在其自然范围之外，具有很高的藏匿和保持相容性ECM真菌类群的能力。在卵形衣原体中鉴定出89个ECM真菌类群，在周围的多物种原生森林中鉴定出76个类群。卵形隐孢子虫与周围的森林仅共享35％的分类单元，而仅在卵形隐孢子虫中鉴定出38％的分类单元站立，周围森林占27％。我们得出的结论是，波兰剩余的成功适应外来山核桃树的人工林可能构成本地树的有价值的ECM真菌库，从而有助于维护真菌的生物多样性。