International Journal of Systematic and Evolutionary Microbiology, Vol 52, 1887-1892, Copyright © 2002 by Society for General Microbiology

Udeniomyces pannonicus sp. nov., a ballistoconidium-forming yeast isolated from leaves of plants in Hungary

Y. Niwata, M. Takashima, J. Tornai-Lehoczki, T. Deak and T. Nakase
Japan Collection of Microorganisms, RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198, Japan

Fifteen ballistoconidium-forming yeasts, isolated from the leaves of plants in Hungary, showed morphological, physiological and biochemical characteristics similar to those of Udeniomyces pyricola. The identical sequences of internal transcribed spacer regions for selected strains (HY-16(T), HY-29, HY-111 and HY-186) indicated that they should be classified as one species. Although a representative strain, HY-16(T), showed a closer relationship to Itersonilia perplexans than to known Udeniomyces species in phylogenetic trees constructed using 18S rDNA and the D1/D2 region of the 26S rDNA sequence, this species was placed in the genus Udeniomyces on the basis of its morphological and chemotaxonomic characteristics. Udeniomyces pannonicus sp. nov. (type strain HY-16(T)=JCM 11145(T)=NCAIM Y 01556(T)=CBS 9123(T)) is proposed.