Xue Meng-Lin, Zhang Li-Qun, Wang Qi-Ming, Zhang Ji-Shu, Bai Feng-Yan
Department of Plant Pathology, China Agricultural University, Beijing 100094, China.
College of Life Science, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China.
Int J Syst Evol Microbiol. 2006 Sep;56(Pt 9):2245-2250. doi: 10.1099/ijs.0.64391-0.
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 XY103(T)=AS 2.3110(T)=CBS 10357(T)), Metschnikowia zizyphicola sp. nov. (type strain XY201(T)=AS 2.3111(T)=CBS 10358(T)) and Metschnikowia shanxiensis sp. nov. (type strain XY801(T)=AS 2.3112(T)=CBS 10359(T)) 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.
从中国山西省和山东省采集的枣果表面分离出八株酵母菌株。在适宜条件下，所有八株菌株均产生针状子囊孢子。通过对26S rDNA D1/D2结构域和内部转录间隔区（ITS）区域进行序列比较，识别出三个不同的类群，代表了梅奇酵母属中的三个新物种。为这三个新物种提议了新名称，中华梅奇酵母（Metschnikowia sinensis sp. nov.）（模式菌株XY103(T)=AS 2.3110(T)=CBS 10357(T)）、酸枣梅奇酵母（Metschnikowia zizyphicola sp. nov.）（模式菌株XY201(T)=AS 2.3111(T)=CBS 10358(T)）和山西梅奇酵母（Metschnikowia shanxiensis sp. nov.）（模式菌株XY801(T)=AS 2.3112(T)=CBS 10359(T)）。对26S rDNA D1/D2结构域序列进行系统发育分析表明，这三个新物种与先前描述的果实梅奇酵母（Metschnikowia fructicola）、安道尔梅奇酵母（Metschnikowia andauensis）、美丽梅奇酵母（Metschnikowia pulcherrima）和金眼梅奇酵母（Metschnikowia chrysoperlae）聚集在一个进化枝中。
