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  • Title: [Adenylate level in the mycelium of Penicillium nigricans Thom. grown on various carbon sources].
    Author: Rogal' IG, Malkov MA, Sokolova EN.
    Journal: Antibiotiki; 1979 Jan; 24(1):11-5. PubMed ID: 426491.
    Abstract:
    Concentrations of ATP and ADP and their dynamics during cultivation (2, 5, 9 and 13 days) of a highly productive strains of P. nigricans on a mineral medium in the presence of various carbon sources, such as glucose, succinate or acetate were studied. It was shown that the levels of ATP and ADP in the mycelium depended on the carbon source: the maximum and minimum ATP concentrations were found on the glucose and acetate media respectively, the maximum and minimum ADP concentrations showed inverse dependence. The concentrations of both adenylates on the same carbon source depended on the strain. The dynamics of the adenylates levels during cultivation showed an analogous dependence on the carbon source and the strain. Thus, the highly productive strain was characterized by a constant ATP level on glucose and succinate and variation on acetate, while the ADP level was characterized by a decrease by the 9th day of cultivation on any of the carbon sources. The low productive strain was characterized by variations in the level of ATP in any media used, stability of the ADP level by the 2nd--9th day of cultivation on the glucose medium and by the 2nd--5th day of cultivation on the succinate medium and a decrease by the 9th day of cultivation on the acetate and succinate media. The ratio of ATP/ADP at the phase of griseofulvin biosynthesis (9 days) markedly increased in both the strains when cultivated on the media with any of the carbon sources.
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