Ectomycorrhizal fungal communities on seedlings and conspecific trees of Pinus mugo grown on the coastal dunes of the Curonian Spit in Lithuania

A study on the Curonian Spit, Lithuania, reveals that Pinus mugo, a non-native tree species thriving in harsh coastal dunes, forms ectomycorrhizal (ECM) associations with a low but consistent fungal diversity. Molecular analysis identified 12 ECM taxa across three study sites, with Cenococcum geophilum dominating both seedlings and mature trees, though more abundantly on seedlings. Shannon's diversity indices indicated slightly higher diversity in mature trees. While mycorrhizal communities were similar across sites, subtle differences emerged between seedlings and mature trees. The study also highlighted discrepancies between below-ground ECM diversity and aboveground fruiting body surveys, emphasizing the need for comprehensive sampling methods to accurately assess fungal symbionts. These findings suggest P. mugo's adaptability in distinct habitats, supported by a stable suite of ECM symbionts that facilitate growth and natural regeneration.

Aučina, A., Rudawska, M., Leski, T., Ryliškis, D., Pietras, M., & Riepšas, E. (2010). Ectomycorrhizal fungal communities on seedlings and conspecific trees of Pinus mugo grown on the coastal dunes of the Curonian Spit in Lithuania. Mycorrhiza, 21(3), 237–245. https://doi.org/10.1007/s00572-010-0341-3