Growth of yeasts on D-xylulose
Growth of yeasts on D-xylulose
复制标题
酵母在 D-木酮糖上的生长
DOI：
10.1139/m80-193
复制
发表时间：
1980
影响因子：
2.8
通讯作者：
H. Schneider
中科院分区：
文献类型：
--
作者：
P. Wang;H. Schneider
Nine of eleven yeasts of different species or genera grew in the presence of air on the intermediate of D-xylose catabolism, D-xylulose (D-threo-pentulose). Growth on this substrate was efficient as judged by the optical density in stationary phase being generally similar to that after growth on glucose. Yeasts which grew on D-xylose also did so on D-xylulose, but among those which grew are included several which utilise neither D-xylose nor xylitol: Saccharomyces cerevisiae, Saccharomyces carlsbergensis, and Schizosaccharomyces pombe. Since catabolism of a sugar generally requires an initial phosphorylation step, growth of these strains suggests that they contain an enzyme which can function as a D-xylulose kinase. The D-xylulose-5-phosphate formed thereby is considered to enter the pentose phosphate pathway. Glucose-grown inocula of S. carlsbergensis and Schizosaccharomyces pombe, and of several other yeasts, began to grow logarithmically when placed on D-xylulose with no apparent delay, or one which wa...
