Abstract
Depending on conditions of aeration maltose and glucose were found to exhibit different effects on the inducible synthesis of β-galactosidase in aerobically grown cells ofEscherichia coli starving for an exogenous source of nitrogen; both saccharides repressed the synthesis of the enzyme under aerobic conditions, while the above-mentioned saccharides were essential for the enzyme synthesis under anaerobic conditions. The presence of maltose in the medium resulted in the repression of the enzyme synthesis in anaerobically grown cells starving for an exogenous nitrogen source under anaerobic conditions. The synthesis of β-galactosidase-specific messenger RNA was completely blocked and the synthesis of the enzyme proper considerably inhibited in aerobically grown cells incubated anaerobically in a medium without nitrogen and carbon sources.
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Kužela, Š., Kováč, L. The effect of anaerobiosis on the induced synthesis of β-galactosidase in non-growingEscherichia coli . Folia Microbiol 13, 129–133 (1968). https://doi.org/10.1007/BF02868213
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DOI: https://doi.org/10.1007/BF02868213