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Int J Syst Evol Microbiol 59 (2009), 631-636; DOI  10.1099/ijs.0.001800-0
© 2009 International Union of Microbiological Societies

Cryptococcus terrestris sp. nov., a tremellaceous, anamorphic yeast phylogenetically related to Cryptococcus flavescens

Juliana Crestani1, Melissa Fontes Landell2, Josiane Faganello1, Marilene Henning Vainstein1,2, Helen Simpson Vishniac3 and Patrícia Valente1,2

1 Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre (RS), Brazil
2 Departamento de Microbiologia, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre (RS), Brazil
3 Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK 74078, USA

Correspondence
Patrícia Valente
patricia.valente{at}ufrgs.br

Cryptococcus terrestris sp. nov. (Basidiomycota, Agaricomycotina, Tremellomycetes, Tremellales) is typified by CJDX4 Y23T (=CBS 10810T =NRRL Y-48451T), isolated from forest soil in Oklahoma, USA. This species is most readily identified by the sequence of the D1/D2 domain region of the 26S rDNA and ITS (internal transcribed spacer) region. Additional strains from Oklahoma (C107DX4 Y11 =CBS 10813 =NRRL Y-48452) and Brazil (Ep11c =CBS 10812 =NRRL Y-48454; 56e =CBS 10811 =NRRL Y-48453) either had identical sequences or differed minimally. C. terrestris differs physiologically from the most closely related species, Cryptococcus flavescens, by the weak or delayed assimilation of ribose and salicin, and differs from Cryptococcus aureus by the utilization of nitrate and nitrite and growth in vitamin-free medium.

Abbreviations: ITS, internal transcribed spacer

The GenBank/EMBL/DDBJ accession numbers for the sequences of the D1/D2 domain of the 26S rDNA/ITS region of strains CJDX4 Y23T, C107DX4 Y11, Ep11c and 56e are respectively EF370393/EU200782, EF599104/EU499187, EU200780/EU200781 and EU340251/EU340250.






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