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Title: New anamorphic yeast species: Candida infanticola sp. nov., Candida polysorbophila sp. nov., Candida transvaalensis sp. nov., and Trigonopsis californica sp. nov.

Author
item Kurtzman, Cletus

Submitted to: Antonie Van Leeuwenhoek
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 1/23/2007
Publication Date: 7/1/2007
Citation: Kurtzman, C.P. 2007. New anamorphic yeast species: Candida infanticola sp. nov., Candida polysorbophila sp. nov., Candida transvaalensis sp. nov., and Trigonopsis californica sp. nov. Antonie Van Leeuwenhoek. 92(2):221-231.

Interpretive Summary: Four new yeast species are described in this paper. Trigonopsis californica is implicated in wine spoilage, Candida polysorbophila was from a lipid-based industrial product, Candida infanticola is a clinical isolate and Candida transvaalensis is from forest litter. These new species were only recognized as new because of their unique gene sequences. This work demonstrates that there are many previously unrecognized yeasts that impact agriculturally related products, as well as cause human infections, and that their identification is only possible through use of comparative gene sequence databases, such as those developed at NCAUR.

Technical Abstract: Three new species of Candida and a new species of Trigonopsis are described based on their recognition from phylogenetic analysis of gene sequences from large subunit ribosomal RNA, ITS1/ITS2 rRNA, mitochondrial small subunit rRNA and cytochrome oxidase II. Candida infanticola sp. nov. (type strain NRRL Y-17858, CBS 7922) was isolated from the ear of an infant in Germany and is closely related to C. sorbophila. Candida polysorbophila sp. nov. (type strain NRRL Y-27161, CBS 7317) is a member of the Zygoascus clade and was isolated in South Africa as a contaminant from an emulsion of white oil and polysorbate. Candida transvaalensis sp. nov. (type strain NRRL Y-27140, CBS 6663) was obtained from forest litter, the Transvaal, South Africa, and forms an isolated clade with C. santjacobensis. Trigonopsis californica sp. nov. (type strain NRRL Y-27307, CBS 10351) represents a contaminant from wine in California, and forms a well-supported clade with T. cantarellii, T. variabilis and T. vinaria.