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Cuniculitrema polymorpha (Tremellales, gen. nov. and sp. nov.), a heterobasidiomycete vectored by bark beetles, which is the teleomorph of Sterigmatosporidium polymorphuma

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Abstract

In a study of the mycobiota associated with bark beetles, a dimorphic fungus producing longitudinally septate basidia of the Tremella-type and yeast cells budding off from stalks, was collected. Detailed morphological, physiological and molecular studies revealed that this fungus represents the teleomorph of Sterigmatosporidium polymorphum. Consequently, a new genus, Cuniculitrema gen. nov., and a new species, C. polymorpha sp. nov., are proposed. Comparative morphological and molecular studies indicated that the new taxon belongs to a group that also comprises species of the stalk-forming anamorphic genera Fellomyces and Kockovaella. The new family Cuniculitremaceae is proposed for this group.

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Correspondence to Roland Kirschner.

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Kirschner, R., Sampaio, J.P., Gadanho, M. et al. Cuniculitrema polymorpha (Tremellales, gen. nov. and sp. nov.), a heterobasidiomycete vectored by bark beetles, which is the teleomorph of Sterigmatosporidium polymorphuma. Antonie Van Leeuwenhoek 80, 149–161 (2001). https://doi.org/10.1023/A:1012275204498

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  • dimorphic heterobasidiomycetes
  • molecular phylogenetic analysis
  • mycoparasitism
  • large subunit ribosomal RNA gene
  • stalk-forming yeasts
  • Tremellina