Bullera anomala sp. nov. and Bullera pseudovariabilis sp. nov., two new ballistoconidium-forming yeast species from Yunnan,China |
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Authors: | Bai Feng-Yan Takashima Masako Zhao Jian-Hua Jia Jian-Hua Nakase Takashi |
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Institution: | (1) Systematic Mycology and Lichenology Laboratory, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100080, China;(2) Japan Collection of Microorganisms, RIKEN (The Institute of Physical and Chemical Research), Wako 351-0198, Japan;(3) Yothi Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 73/1 Rama VI Road, Bangkok, 10400, Thailand |
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Abstract: | Two ballistoconidium-forming yeast strains, CH 2.504 and CH 2.509, were isolated from the wilting leaves of Parthenocissus sp. collected in Yunnan, China in 1996. These two strains were assigned to the genus Bullera Derx by the characteristics of forming rotationally symmetric ballistoconidia, containing xylose in the cell hydrolysates
and having Q-10 as the major ubiquinone. Molecular phylogenetic analysis based on small subunit ribosomal RNA gene (18S rDNA)
and internal transcribed spacer (ITS) region sequences revealed that CH 2.504 is closely related to B. variabilis Nakase & Suzuki, while CH 2.509 is located in a clearly separate clade among the described Bullera species and related taxa. The results indicated that CH 2.509 represents a new species, for which Bullera anomala sp. nov. is the proposed name (type strain AS 2.2094T). Further DNA-DNA reassociation data showed that CH 2.504 also represents a distinct species, for which the name Bullera pseudovariabilis sp. nov. is given (type strain AS 2.2092T).
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | Basidiomycetous yeasts Bullera anomala Bullera pseudovariabilis Bullera variabilis Molecular taxonomy |
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