Abstract

A molecular genetic study of pectinase PGU genes from 74 strains of the yeast Saccharomyces bayanus var. uvarum isolated from various fermentation processes and natural sources in different regions of Europe and the United States has been performed. Unlike the S. cerevisiae yeasts, each having a single PGU gene, the S. bayanus var. uvarum strains have three divergent genes, PGU1b, PGU2b, and PGU3b, which are located respectively on chromosomes X, I, and XIV. The high pectinolytic activity of these yeasts appears to be related to the presence of several PGU polymeric genes in their genomes.

中文翻译：

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果糖酵母果胶酶基因PGU的分子多态性 酵母酵母

摘要

对来自74个酵母糖酵母变种果胶酶PGU基因的分子遗传研究。从欧洲和美国不同地区的各种发酵过程和天然来源分离出的牛var已经进行。与酿酒酵母不同，每个酵母都有一个PGU基因，即Bayanus var。优毒株具有三个不同的基因PGU1b，PGU2b和PGU3b，它们分别位于X，I和XIV染色体上。这些酵母的高果胶分解活性似乎与几种PGU的存在有关 基因组中的聚合基因。