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1 College of Life Science, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China
2 Department of Plant Pathology, China Agricultural University, Beijing 100094, China
3 Systematic Mycology and Lichenology Laboratory, Institute of Microbiology, The Chinese Academy of Sciences, Beijing 100080, China
Correspondence
Li-Qun Zhang
zhanglq{at}cau.edu.cn
Eight yeast strains were isolated from jujube fruit surfaces collected in Shanxi and Shandong Provinces, China. All eight strains produced needle-shaped ascospores under suitable conditions. Three separate groups, representing three novel species in the genus Metschnikowia, were recognized by sequence comparisons of the 26S rDNA D1/D2 domain and internal transcribed spacer (ITS) region. The names Metschnikowia sinensis sp. nov. (type strain XY103T=AS 2.3110T=CBS 10357T), Metschnikowia zizyphicola sp. nov. (type strain XY201T=AS 2.3111T=CBS 10358T) and Metschnikowia shanxiensis sp. nov. (type strain XY801T=AS 2.3112T=CBS 10359T) are proposed for the three novel species. Phylogenetic analysis of the 26S rDNA D1/D2 domain sequence showed that these three novel species are clustered in a clade together with the previously described species Metschnikowia fructicola, Metschnikowia andauensis, Metschnikowia pulcherrima and Metschnikowia chrysoperlae.
The GenBank/EMBL/DDBJ accession numbers for the rRNA operon sequences of strains XY103T, XY201T and XY801T are DQ367881DQ367883.
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