新型土生隐球菌，一种银耳状、无性型酵母，在系统发育上与微黄隐球菌相关。
Cryptococcus terrestris sp. nov., a tremellaceous, anamorphic yeast phylogenetically related to Cryptococcus flavescens.
作者信息
Crestani Juliana, Fontes Landell Melissa, Faganello Josiane, Henning Vainstein Marilene, Simpson Vishniac Helen, Valente Patrícia
机构信息
Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre (RS), Brazil.
出版信息
Int J Syst Evol Microbiol. 2009 Mar;59(Pt 3):631-6. doi: 10.1099/ijs.0.001800-0.
Cryptococcus terrestris sp. nov. (Basidiomycota, Agaricomycotina, Tremellomycetes, Tremellales) is typified by CJDX4 Y23(T) (=CBS 10810(T) =NRRL Y-48451(T)), 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.
新型土生隐球菌（担子菌门，伞菌亚门，银耳纲，银耳目）以CJDX4 Y23(T)（=CBS 10810(T) =NRRL Y-48451(T)）为模式菌株，从美国俄克拉荷马州的森林土壤中分离得到。该物种最容易通过26S rDNA的D1/D2结构域区域和ITS（内部转录间隔区）区域的序列进行鉴定。来自俄克拉荷马州的其他菌株（C107DX4 Y11 =CBS 10813 =NRRL Y-48452）和巴西的菌株（Ep11c =CBS 10812 =NRRL Y-48454；56e =CBS 10811 =NRRL Y-48453）要么具有相同的序列，要么差异极小。土生隐球菌在生理上与关系最密切的物种黄隐球菌的区别在于对核糖和水杨苷的同化作用较弱或延迟，与金黄隐球菌的区别在于对硝酸盐和亚硝酸盐的利用以及在无维生素培养基中的生长情况。
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