Current and potential distribution of the ectomycorrhizal fungus Suillus lakei ((Murrill) A.H. Sm. & Thiers) in its invasion range

Marcin Pietras , Monika Litkowiec , Joanna Gołębiewska


Suillus lakei is an ectomycorrhizal fungus native to North America and known in Europe, SouthAmerica, and New Zealand. This contribution aims to illustrate the worldwide biogeography of S. lakei based on sporocarp records. Species distribution modeling was used to assess the suitable niche distribution of S. lakei, based on the climatic variables as well as distribution of its ectomycorrhizal partner, Douglas fir. In general, distribution of suitable niches of S. lakei greatly overlaps with the distribution of Douglas fir in North America. By spatial distribution modeling, we found that the precipitation of the coldest quarters, isothermality, and annual mean temperature are important factors influencing the potential distribution of S. lakei. Nevertheless, the most crucial factor limiting expansion of S. lakei in its invasion range is Douglas fir occurrence. This factor reached an 86.4% contribution for the S. lakei species distribution model. Additionally, we compare the aboveground and belowground presence of S. lakei based on surveys in the field. Our study shows that even extremely low abundance of ectomycorrhizas can open the possibility of using an ectomycorrhiza survey for their quantification as a good indicator of the presence of S. lakei in field conditions. Both sporocarps and ectomycorrhizas occurred only in gardens, where Douglas fir seedlings were outplanted at the beginning of the 1990s as an ornamental plant. Presumably, international trade of ornamental plants was one possible route of introduction of S. lakei to Poland.
Author Marcin Pietras (FB / DPTNC) - Polish Academy of Science [Polish Academy of Science]
Marcin Pietras,,
- Department of Plant Taxonomy and Nature Conservation
- Polska Akademia Nauk
, Monika Litkowiec
Monika Litkowiec,,
, Joanna Gołębiewska (FB / DPTNC)
Joanna Gołębiewska,,
- Department of Plant Taxonomy and Nature Conservation
Journal seriesMycorrhiza, ISSN 0940-6360, (A 35 pkt)
Issue year2018
Publication size in sheets0.5
Keywords in EnglishSuillus lakei, ectomycorrhiza, foreign fungus, fungal biogeography, ecological niche modeling
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 01-03-2019, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 01-03-2019, ArticleFromJournal
Publication indicators WoS Impact Factor: 2017 = 2.778 (2) - 2017=2.991 (5)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.