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  • Title: [Carbohydrate metabolism enzymes of purple sulfur-bacteria during growth in the dark].
    Author: Krasil'nikova EN.
    Journal: Mikrobiologiia; 1977; 46(2):217-22. PubMed ID: 882007.
    Abstract:
    Ectothiorhodospira shaposhnikovii, Chromatium minutissimum and Thiocapsa roseopersicina were grown in the dark under anaerobic conditions on media containing glucose or fructose and organic acids. Their cell contained the following enzymes of the fructose diphosphate pathway: phosphofructokinase, fructose diphosphate aldolase, and 3-phosphoglyceraldehyde dehydrogenase. The activity of fructose diphosphate aldolase was higher in the cells grown in the dark than in the cells grown in the light. The same enzymes of the tricarboxylic acid cycle were found in the cells cultivated in the dark on media containing organic acids as in the cells grown in the light, though the activity of some enzymes was lower. Only the activity of isocitrate lyase increased in the cells cultivated in the dark on a medium containing acetate.
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