RRC ID 75133
Author Yamada M, Endoh R, Masumoto H, Yoshihashi Y, Ohkuma M, Degawa Y.
Title Taxonomic study of polymorphic basidiomycetous fungi Sirobasidium and Sirotrema: Sirobasidium apiculatum sp. nov., Phaeotremella translucens comb. nov. and rediscovery of Sirobasidium japonicum in Japan.
Journal Antonie Van Leeuwenhoek
Abstract Species in the genera Sirobasidium and Sirotrema (Tremellales, Tremellomycetes, Agaricomycotina, Basidiomycota) have been described based solely on the morphology of teleomorph, and many of them lack both isolates of anamorphic yeast state and nucleotide sequence data. Strains of Sirotrema translucens and Sirobasidium japonicum were established for the first time from basidiocarps collected in Japan. Also, an undescribed species in the genus Sirobasidium was isolated. Sirobasidium sp. was characterized by its apiculate epibasidia and 2-celled basidia divided by a longitudinal septum, which is a unique combination of characteristics in the genus. Although the phylogenetic placement of Sb. japonicum within the Tremellales was not resolved in our analysis, Sirobasidium sp. formed a well-supported monophyletic clade with Sb. magnum and Fibulobasidium spp., and Sirotrema translucens was located in the genus Phaeotremella. Mating experiments using single-basidiospore strains showed that Sb. japonicum produced basidia, epibasidia, and basidiospores on a nutrient-poor medium, and the life cycle was successfully completed in controlled conditions. In conclusion, we propose Sirobasidium apiculatum sp. nov. and Phaeotremella translucens comb. nov.
Volume 115(12)
Pages 1421-1436
Published 2022-12-1
DOI 10.1007/s10482-022-01787-9
PII 10.1007/s10482-022-01787-9
PMID 36327002
MeSH Basidiomycota* / genetics Fungi Japan Phylogeny Spores, Fungal
Resource
General Microbes JCM 32018 JCM 32019 JCM 32020 JCM 32021 JCM 32022 JCM 32023