Abstract
Membranomyces (Clavulinaceae, Cantharellales) Jülich consists of two described species of resupinate (crust-like) basidiomycetes. Previous studies indicated that Membranomyces falls within the Clavulinaceae, but the phylogenetic position of the genus has not been fully resolved. Membranomyces species were thought to be saprotrophic until 2003 when Tedersoo et al. detected Membranomyces delectabilis on ectomycorrhizal roots of Populus and Picea. Membranomyces was previously known only from collections made in eastern Canada and Europe. We recently sequenced the ITS rDNA barcode region from Scandinavian herbarium specimens identified as M. delectabilis and Membranomyces spurius. Phylogenetic analyses of these sporocarp sequences and similar environmental sequences indicated that Membranomyces is more diverse than previously thought and forms ectomycorrhizas with hosts from a diverse range of plant families in many north temperate ecosystems.
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Acknowledgments
We thank two anonymous reviewers for constructive comments that improved the quality of this work. Funding was provided by the National Science Foundation (DEB-0918591 to TWH and DEB-3331108 to RV). JKU received additional funding from the Cascade Mycological Society, Humboldt Bay Mycological Society, Sonoma Mycological Association, Friends of the Farlow, McCrone Graduate Fellowship, and Greg Jennings Research Dissemination Grant. Connie Robertson of the Duke Herbarium helped secure herbarium loans. Funding for MES provided in part by University of Florida’s Institute of Food and Agricultural Sciences (IFAS). We would also like to thank the following herbaria for providing specimens for study: University of Göthenburg, Sweden (GB), University of Helsinki, Finland (H), University of Tennessee, USA (TENN), Duke University, USA (DUKE). Additional thanks go to lab members of the Duke and Humboldt State mycology labs.
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Uehling, J.K., Henkel, T.W., Vilgalys, R. et al. Membranomyces species are common ectomycorrhizal symbionts in Northern Hemisphere forests. Mycorrhiza 22, 577–581 (2012). https://doi.org/10.1007/s00572-012-0457-8
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DOI: https://doi.org/10.1007/s00572-012-0457-8