新种赫氏假丝酵母、皮钦瓜假丝酵母和圣保罗假丝酵母，三种来自维洛齐亚赫蕉（赫蕉科）的子囊菌酵母。
Candida heliconiae sp. nov., Candida picinguabensis sp. nov. and Candida saopaulonensis sp. nov., three ascomycetous yeasts from Heliconia velloziana (Heliconiaceae).
作者信息
Ruivo Carla C C, Lachance Marc-André, Rosa Carlos A, Bacci Maurício, Pagnocca Fernando C
机构信息
Centro de Estudos de Insetos Sociais e Departamento de Bioquímica e Microbiologia, Universidade Estadual Paulista - Unesp, CP 199, Rio Claro, SP, 13506-900, Brazil.
Department of Biology, University of Western Ontario, London, Ontario N6A 5B7, Canada.
出版信息
Int J Syst Evol Microbiol. 2006 May;56(Pt 5):1147-1151. doi: 10.1099/ijs.0.64097-0.
Strains belonging to three novel yeast species, Candida heliconiae (four isolates), Candida picinguabensis (three isolates) and Candida saopaulonensis (two isolates), were recovered in the year 2000 from water of flower bracts of Heliconia velloziana L. Emigd. (Heliconiaceae) found in a forest ecosystem site in an Atlantic rainforest of south-eastern Brazil. C. picinguabensis and C. saopaulonensis were nearly identical in morphology and physiology, but sequence divergence in the D1/D2 domain of the large-subunit rDNA indicated that they should be regarded as different species. They belong to the Metschnikowiaceae clade. C. heliconiae had affinities to Pichia mexicana and related species, but was genetically isolated from all currently accepted species in that group. The type strains are C. heliconiae UNESP 00-91C1T (=CBS 10000T=NRRL Y-27813T), C. picinguabensis UNESP 00-89T (=CBS 9999T=NRRL Y-27814T) and C. saopaulonensis UNESP 00-99T (=CBS 10001T=NRRL Y-27815T).
2000年，在巴西东南部大西洋雨林的一个森林生态系统地点采集的维洛齐亚赫蕉（Heliconia velloziana L. Emigd.，蝎尾蕉科）的苞片水中，分离出了属于三个新酵母物种的菌株，分别是赫蕉假丝酵母（Candida heliconiae，4株分离株）、皮钦瓜假丝酵母（Candida picinguabensis，3株分离株）和圣保罗假丝酵母（Candida saopaulonensis，2株分离株）。皮钦瓜假丝酵母和圣保罗假丝酵母在形态和生理上几乎相同，但大亚基核糖体DNA的D1/D2结构域的序列差异表明它们应被视为不同的物种。它们属于梅奇尼科夫酵母科分支。赫蕉假丝酵母与墨西哥毕赤酵母及相关物种有亲缘关系，但在基因上与该组中所有目前已被认可的物种相分离。模式菌株分别是赫蕉假丝酵母UNESP 00 - 91C1T（=CBS 10000T=NRRL Y - 27813T）、皮钦瓜假丝酵母UNESP 00 - 89T（=CBS 9999T=NRRL Y - 27814T）和圣保罗假丝酵母UNESP 00 - 99T（=CBS 10001T=NRRL Y - 27815T）。
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