Genus

Tausonia

Species

pamirica

Author

Bab'eva, Mikrobiologiya 67: 232 (1998)

Class

Tremellomycetes, Subclass Tremellomycetidae

Order

Cystofilobasidiales

Family

Mrakiaceae

Synonymy:

Description

Tausonia Babeva, Mikrobiologiya 67 (2): 231 (1998

Type species: Tausonia pamirica Bab'eva, Mikrobiologiya 67: 232 (1998)

Tausonia pullulans (Lindner) X.Z. Liu, F.Y. Bai, M. Groenew. & Boekhout, Studies in Mycology 81: 116 (2015)

= Basidiotrichosporon pullulans (Lindner) Kock.-Krat. et al.

= Oidium pullulans Lindner, Mikroskopische Betriebskontrolle in den Gährungsgewerben: 286 (1901)

= Oospora pullulans (Lindner) Sacc., Sylloge Fungorum 18: 499 (1906)

= Monilia pullulans (Lindner) Kloecker, Die Gärungsorganismen in der Theorie und Praxis der Alkoholgarungsgewerbe: 333 (1924)

= Trichosporon pullulans (Lindner) Diddens & Lodder, Die anaskosporogenen Hefen, II Hälfte: 410 (1942)

= Guehomyces pullulans (Lindner) Fell & Scorzetti, International Journal of Systematic and Evolutionary Microbiology 54 (3): 997 (2004)

Budding cells that may be enteroblastic are present. Disarticulate hyphae develop arthroconidia. Tests for urease and diazonium blue B are positive. Sexual morph: Undetermined. Based on rDNA analysis, the genus is related to members of the Cystoﬁlobasidiales.

Key references:

Bab'eva IP (1998) Tausonia pamirica gen. nov. sp. nov., a psychrophilic yeastlike micromycete from the soils of Pamir. Mikrobiologiia 67: 189–194.

Boekhout T, Fonseca A, Sampaio JP, et al. (2011) Discussion of teleomorphic and anamorphic basidiomycetous yeasts. In: The yeasts: a taxonomic study (Kurtzman CP, Fell JW, Boekhout T, eds). Elsevier, Amsterdam: 1356–1367.

Fell JW, Scorzetti G (2004) Reassignment of the basidiomycetous yeasts Trichosporon pullulans to Guehomyces pullulans gen. nov., comb. nov. and Hyalodendron lignicola to Trichosporon lignicola comb. nov. International Journal of Systematic and Evolutionary Microbiology. 54(3):995-998.

Fell JW, Gu-eho-Kellermann E (2011) Guehomyces Fell & Scorzetti (2004). In: The yeasts: a taxonomic study (Kurtzman CP, Fell JW, Boekhout T, eds). Elsevier, Amsterdam: 1773–1775.

Liu, X.Z., Wang, Q.M., Göker, M., Groenewald, M., Kachalkin, A.V., Lumbsch, H.T., Millanes, A.M., Wedin, M., Yurkov, A.M., Boekhout, T. & Bai, F.Y. (2015) Towards an integrated phylogenetic classification of the Tremellomycetes. Studies in mycology 81: 85–147.

Sampaio JP (2011b). Tausonia Bab'eva (1998) In: The yeasts: a taxonomic study (Kurtzman CP, Fell JW, Boekhout T, eds). Elsevier, Amsterdam: 1999–2001.

Type & Location:

Other Specimens:

Substratum:

Soil, human pathogen, isolated from seawater.

Habitat:

Distribution:

Czechoslovakia, Japan, USA.

Pertinent Literature:

Comments:

NOTES: Jones et al. (2015) listed this species under Guehomyces pullulan,s but the genus Tausonia was emended to include the monotypic genus Guehomyces based on rRNA sequence analyses (Boekhout et al. 2011, Fell & Gu-eho-Kellermann 2011, Sampaio 2011, Liu et al. 2015). Tausonia was characterised as basidiocarps absent. Cultures may be pigmented and pinkish. Hyphae disarticulate into arthroconidia. Chlamydospores occasionally produced. Sexual reproduction not observed. Budding cells present. Fermentation absent. Nitrate and nitrite utilised. Major CoQ system CoQ-9. Tausonia (Bab'eva 1998) has nomenclatural priority over Guehomyces (Fell & Scorzetti 2004). The two species are phenotypically similar in producing arthroconidia. The genus currently contains two species and a potentially additional new species (Liu et al. 2015). The role of T. pullulans in marine habitats is queried but it has been isolated many times from seawater.

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