MycoWeekly Newsletter

Your Weekly Dose of Mycology Research

Experimental warming decouples plant-fungal symbiont interactions and leads to a more conservative ecosystem.

2026-02-17
Proceedings of the National Academy of Sciences of the United States of America • Level 3 (24 panels)
Lara Souza, Aimée T. Classen, Jennifer A. Rudgers, C. M. L. Miller, Jessica A. M. Pyle, Ruth Simberloff, J. Fordyce, John Harte, S. Kivlin

This study examines shifts in plant-fungal symbiont interactions under prolonged warming in subalpine grasslands. Over 29 years, experimental warming led to a 150% increase in woody vegetation, reduced reliance on mycorrhizal fungi by 17-20%, and a 10% rise in soil saprotrophic fungi. These shifts suggest a move toward more conservative ecosystems, resembling desert shrublands.

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Filamentous fungal communities associated with the eastern larch beetle (Dendroctonus simplex LeConte) in Minnesota, including new Ophiostomatales species.

2026-02-26
Mycologia • Level 2 (6 panels)
Andrew J. Mann, Amelia G. Lochridge, Rin M. Barnum, Jennifer Galarneau, E. Otto, N. N. Rajtar, B. Held, Kathryn E Bushley, R. A. Blanchette

This study investigates the fungal communities in eastern larch beetle (Dendroctonus simplex) galleries amid a prolonged outbreak in Minnesota's Larix laricina forests. Researchers identified 45 fungal species, four being novel Ophiostomatales, and propose taxonomic revisions for Leptographium simplex. Dominant among the isolates was Ascomycota, particularly the Ophiostomatales.

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Two new species of Tulostoma from the tropical dry forest of Mexico.

2026-02-26
Mycologia • Level 2 (6 panels)
Eduardo Hernández-Navarro, Valerie Velázquez-Machorro, J. Álvarez-Manjarrez

In dry tropical forests of Mexico, two novel Tulostoma species, T. parvirufula and T. chamelensis, have been identified. Morphological analysis and DNA sequencing reveal distinctive traits, such as spore sac size and basidiospore ornamentation. Phylogenetic studies place them near clade 11, highlighting their unique evolutionary lineage and enriching our understanding of Tulostoma diversity.

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The first comprehensive multilocus phylogeny of the lichenized genus Micarea (Ectolechiaceae, Ascomycota)

2026-02-01
Taxon • Level 2 (6 panels)
L. Myllys, Måns Svensson, G. Kantvilas, E. Sérusiaux, P. V. D. van den Boom, A. Aptroot, Rainer Cezanne, M. Eichler, R. Pino‐Bodas, C. Printzen, J. Pykälä, G. Thor, Martin Westberg, L. Weber, Annina Kantelinen

In a groundbreaking study, researchers present the first comprehensive multilocus phylogeny of the lichen genus Micarea (Ectolechiaceae, Ascomycota), revealing it as monophyletic when expanded to include Fellhaneropsis and Szczawinskia. Utilizing five genetic loci across 314 specimens, the study identifies four novel species and proposes refined taxonomic classifications within Micarea.

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