Utilization of hexoses in fission yeast, Schizosaccharomyces pombe II. Rate of consumption and intracellular accumulation of glucose and mannose

概要

論文の詳細を見る
The rates of the utilization of glucose and mannose in Schizosaccharomyces pombe were determined using glucose-grown cells. The rate of aerobic fermentation in the medium containing glucose was not affected by the addition of mannose. In contrast, CO_2 evolution in the mannose medium was greatly enhanced by the addition of glucose, showing nearly the same rate as the glucose medium. The rate of glucose consumption was much higher than that of mannose. In a medium containing both sugars, the rates of consumption of glucose and mannose interfered with each other, the mannose consumption rate being more seriously affected by glucose. Intracellular accumulation of the reducing sugar from the mannose containing medium proceeded much more rapidly and reached a higher level than with the glucose medium. However, trehalose accumulated at a much higher rate with the glucose medium. Consequently, the net increase in cellular carbohydrates, as calculated from the amount of reducing sugar and trehalose, proceeded much more rapidly in the glucose medium. We concluded that the difference in the rates of utilization of glucose and mannose might be due to the difference in the rates of uptake of both sugars.
日本植物生理学会の論文