Soil propagule banks of ectomycorrhizal fungi associated with Larix cajanderi above the treeline in the Siberian Arctic.

ABSTRACT: Microbial symbionts are essential for plant niche expansion into novel habitats. Dormant propagules of ectomycorrhizal (EM) fungi are thought to play an important role in seedling establishment in invasion fronts; however, propagule bank communities above the treeline are poorly understood in the Eurasian Arctic, where treelines are expected to advance under rapid climate change. To investigate the availability of EM fungal propagules, we collected 100 soil samples from Arctic tundra sites and applied bioassay experiments using Larix cajanderi as bait seedlings. We detected 11 EM fungal operational taxonomic units (OTUs) by obtaining entire ITS regions. Suillus clintonianus was the most frequently observed OTU, followed by Cenococcum geophilum and Sebacinales

SUBMITTER: Miyamoto Y 

PROVIDER: S-EPMC10042316 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature