Sirobasidium brefeldianum


Sirobasidium brefeldianum is a species of fungus in the order Tremellales. Basidiocarps (fruit bodies) are gelatinous and appear to be parasitic on ascomycetous fungi on wood. The species was originally described from Brazil, but has also been reported from Asia and Europe.

Sirobasidium brefeldianum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Tremellomycetes
Order: Tremellales
Family: Sirobasidiaceae
Genus: Sirobasidium
Species:
S. brefeldianum
Binomial name
Sirobasidium brefeldianum
Möller (1895)

Taxonomy

Sirobasidium brefeldianum was described from Brazil in 1895 by German mycologist Alfred Möller.[1] Molecular research, based on cladistic analysis of DNA sequences, has indicated that Sirobasidium brefeldianum may not be closely related to other Sirobasidium species, though this is based on a single culture from Europe that may be contaminated and requires further research.[2][3]

Description

Catenulate, septate basidia of Sirobasidium brefeldianum

Fruit bodies are gelatinous, pustular, and whitish, typically occurring in groups. Each measures up to 3 mm across. Basidia are catenulate (formed in chains), with up to 12 basidia in each chain. Individual basidia are ellipsoid to fusiform and transversely biseptate. The sterigmata are deciduous, fusiform, 22-24 x 7-8 μm. The basidiospores are globose, 6-8 μm across.[1]

Habitat and distribution

Sirobasidium brefeldianum was originally described on rotten wood, but European collections are associated with and possibly parasitic on fungi in the Diatrypaceae, including species of Eutypella, growing on dead attached or fallen wood.[4] Sirobasidium brefeldianum has been reported not only from South America, but also Europe (Belgium, England, France, Germany), Asia (Brunei, Ceylon, India), and Macaronesia (Canary Islands), though it is not clear that all these reports refer to the same species.[4]


References

  1. Moller A (1895). Protobasidiomyceten. Vol. 8, Botanische Mittheilungen aus den Tropen. Jena: Gustav Fischer.
  2. Boekhout T, Fonseca Á, Sampaio JP, Bandoni RJ, Fell JW, Kwon-Chung KJ (2011). Chapter 100 - Discussion of teleomorphic and anamorphic basidiomycetous yeasts, in Kurtzman et al., The Yeasts (Fifth ed.). Elsevier. pp. 1339–1372. doi:10.1016/B978-0-444-52149-1.00100-2. ISBN 9780444521491.{{cite book}}: CS1 maint: multiple names: authors list (link)
  3. Yamada M, Endoh R, Masumoto H, Yoshihashi Y, Ohkuma M, Degawa Y (2022). "Taxonomic study of polymorphic basidiomycetous fungi Sirobasidium and Sirotrema: Sirobasidium apiculatum sp. nov., Phaeotremella translucens comb. nov. and rediscovery of Sirobasidium japonicum in Japan". Antonie van Leeuwenhoek. 115 (12): 1421–1436. doi:10.1007/s10482-022-01787-9. PMID 36327002. S2CID 253266990.
  4. Dämon W, Hausknecht A (2002). "First report of a Sirobasidium species in Austria, and a survey of the Sirobasidiaceae" (PDF). Österr. Z. Pilzk. 11: 133–151.
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