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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, Saitama, 351-0198, Japan
Correspondence
Feng-Yan Bai
baify{at}sun.im.ac.cn
Among yeasts isolated from plant leaves collected in different regions of China that form whitish or yellowish colonies and symmetrical ballistoconidia, four strains were shown to represent three novel Bullera species by conventional and molecular taxonomic characterization. The novel species are described as Bullera cylindrica sp. nov. (type strain CB 169T=AS 2.2308T=CBS 9744T), Bullera hubeiensis sp. nov. (type strain HX 19.3T=AS 2.2466T=CBS 9747T) and Bullera nakasei sp. nov. (type strain HX 15.5T=AS 2.2435T=CBS 9746T). These three species, and another eight previously described Bullera species represented by Bullera mrakii, formed a strongly supported distinct clade among the hymenomycetous yeasts in each of the phylogenetic trees drawn from the 26S rDNA D1/D2 domain and the internal transcribed spacer region sequences.
Published online ahead of print on 5 March 2004 as DOI 10.1099/ijs.0.63092-0.
The GenBank/EMBL/DDBJ accession numbers for the ITS region and 26S rDNA D1/D2 domain sequences determined in this study are AY487563AY487570, AB118870 and AB118871.
A phylogenetic tree showing relationships between the three novel Bullera species and related taxa is available as supplementary material in IJSEM Online.
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