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  • Title: Accumulation of pyrophosphate and other energy-rich phosphorous compounds under various conditions of yeast growth.
    Author: Ermakova SA, Mansurova SE, Kalebina TS, Lobakova ES, Selyach IO, Kulaev IS.
    Journal: Arch Microbiol; 1981 Feb; 128(4):394-7. PubMed ID: 6261712.
    Abstract:
    In the cells of hybrid yeast strain Saccharomyces N.C.Y.C. 644 SU3 (Karlsberg collection), a large amount of pyrophosphate (30-300 micro mol per g of dry weight) accumulates whatever the aeration conditions and the contest of glucose in the medium. The content of pyrophosphate is 10-100 times higher than that of ATP. At the early and mid-exponential growth phases two maxima of pyrophosphate accumulation are observable. The periods of maximal pyrophosphate accumulation in yeast coincide with those of the minimal contest of polymeric acid-soluble polyphosphates and intense budding. In the light of the data obtained, the question is discussed as to the relationship between the metabolism of pyrophosphates and acid-soluble polyphosphates in yeats.
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