The unidentified strains AS 2.0706(T), preserved in the China General Microbiological Culture Collection Center (CGMCC), Academia Sinica, Beijing, China, and CBS 6904(T), preserved in the Centraalbureau voor Schimmelcultures (CBS), Utrecht, The Netherlands, were shown to represent two novel ascomycetous yeast species of the genus Kazachstania by 18S rDNA, internal transcribed spacer (ITS) region (including 5.8S rDNA) and 26S rDNA D1/D2 domain sequence analysis and electrophoretic karyotype comparison. The names Kazachstania aquatica sp. nov. and Kazachstania solicola sp. nov. are proposed for strains AS 2.0706(T) and CBS 6904(T), respectively. Phylogenetically, the two novel species are closely related to Kazachstania aerobia, Kazachstania servazzii and Kazachstania unispora.
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