Species Diversity of Yeasts on the Surface of Grape

Abstract:

258 yeast strains were isolated from the surface of grapes,collected from wine grape cultivation areas in Xinjiang, Gansu, Shaanxi, Ningxia and Shandong Provinces.These strains were identified mainly based on the 26S rDNA D1/D2 domain sequence analysis and morphological and physiological characterization. Among them, 26 species belonging to 13 genera were recognized. The dominant genera identified were Hanseniaspora (5 species), Candida (4 species), Pichia (4 species) and Issatchenkia(2 species). D1/D2 sequence variation were compared among the strains of the same species from different areas.