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Journals and Conferences
Labelled alpha-ketoglutaric acid was used to study the inability (complete or partial) of some strains of Azobacter chroococcum to grow on this substrate. This inability is interpreted by the absence, or a lower rate, of induced synthesis of the transport system specific of alpha-ketoglutaric acid.
The difference in the growth on fructose between differentiated and adifferentiated variants of Streptomyces roseoflavus var. roseofungini should be attributed to their different capacity in forming the enzyme system for fructose uptake whose action is induced by this carbohydrate. In the cells of the two variants grown on glucose and mannitol, the process… (More)
It has been shown in the course of cultivation in a liquid medium with stirring that the general density of the cell mass is a factor preventing the accumulation of an adifferential mutant variant in the culture of Streptomyces roseoflavus var. roseofungini 1128. The mass of dead cells acts similarly to the living biomass.
Azotobacter chroococcum 34, actively growing on alpha-ketoglutaric acid, and Azotobacter chroococcum B and KL, which almost do not assimilate this acid, can grow on the majority of substrates of the tricarboxylic acid cycle and on glucose, with and without nitrogen. The rate of assimilation of alpha-ketoglutaric acid is several times higher in the cells… (More)