Bryoclavula phycophila gen. et sp. nov. belonging to a novel lichenized lineage in Cantharellales (Basidiomycota)

Mycological Progress volume 19, pages705–714(2020)Cite this article

Abstract

A new clavarioid, lichenized basidiomycete, Bryoclavula phycophila gen. et sp. nov., is described from Japan based on morphological observations and molecular phylogenetic analyses. Although the fruiting bodies were dispersed on unidentified senescent bryophytes growing on a moist rock surface, the hyphae were not associated with the bryophyte cells. Instead, we confirmed that the hyphae loosely surrounded spherical algal cells present on the surface of bryophytes to form an undifferentiated thallus. The observations by transmission electron microscopy revealed that the alga had a pyrenoid. Morphological characters of B. phycophila were similar to those of lichenized species in the genus Multiclavula, but the new species differs from the latter in that it does not form a globular or bulbil-like thallus. Molecular sequence data of the large subunit of the nuclear ribosomal RNA gene showed that the species was placed in a new lineage in the order Cantharellales, clearly independent from the genus Multiclavula. A multispore isolate of B. phycophila was successfully established and the brief cultural characteristics are described.

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Acknowledgments

We are grateful to Dr. Sachiko Tsukamoto and Dr. Hikaru Kato (Kumamoto University) for facilitating our sampling.

Funding

This research was funded by the Japan Society for the Promotion of Science (JSPS) Grants-in-Aid for Scientific Research (KAKENHI) 19J11217 (to HM) and 19H03281 (to YD).

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  1. Sugadaira Research Station, Mountain Science Center, University of Tsukuba, 1278-294 Sugadaira-kogen, Ueda, Nagano, Japan

    Hiroshi Masumoto & Yousuke Degawa

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Correspondence to Hiroshi Masumoto.

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Masumoto, H., Degawa, Y. Bryoclavula phycophila gen. et sp. nov. belonging to a novel lichenized lineage in Cantharellales (Basidiomycota). Mycol Progress 19, 705–714 (2020). https://doi.org/10.1007/s11557-020-01588-2

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Keywords

  • Culture
  • Lichenized basidiomycetes
  • Molecular phylogeny
  • New taxon
  • Taxonomy
  • TEM