论文信息 - DISTRIBUTION OF WILD YEASTS IN THE WHITE GRAPE VARIETIES AT CENTRAL JAPAN

DISTRIBUTION OF WILD YEASTS IN THE WHITE GRAPE VARIETIES AT CENTRAL JAPAN

The distribution of wild yeasts was studied in 11 samples of grape varieties at 5 localities of different climatic conditions of Nagano and Yamanashi Prefectures in Central Japan. The yeast populations in 6 healthy samples ranged from 0.007 to 6.0×103CFU/ml. In five samples of slightly injured grapes, populations were 110 to 1, 100×103CFU/ml. Two hundred and sixty eight isolates were assigned to 12 species belonging to 4 genera. In 6 samples of grape varieties, Kloeckera apiculata predominated. In contrast, in the other 5 samples of 3 grape varieties, basidiomycetous yeasts (Cryptococcus, Rhodotorula, and other genera) predominated. Generally, basidiomycetous yeasts predominated in a late crop varieties from chilly climatic regions, and ascomycetous yeasts (K. apiculata) predominated in grape varieties from mild climate regions.

S. Goto | T. Shinohara | F. Yanagida | Fumiko Ichinose

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