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  • Title: The use of purine compounds as sole sources of carbon and nitrogen by Klebsiella species.
    Author: Wong SH.
    Journal: Microbios; 1988; 56(226):57-62. PubMed ID: 3237119.
    Abstract:
    Sixty-one strains of Enterobacteriaceae were tested for purine assimilation, including twenty-five Klebsiella pneumoniae, seventeen K. oxytoca and nineteen others. Only K. pneumoniae and K. oxytoca were able to use guanosine triphosphate, xanthine, hypoxanthine, or uric acid as sole sources of carbon and nitrogen. When guanosine triphosphate was used as sole source of nitrogen and carbon, the lag phase was prolonged. The addition of glucose did not affect the maximum number of viable cells for K. pneumoniae ATCC 29665, but produced an increase for strain K. oxytoca ATCC 13030. In the case of uric acid, ATCC 29665 had a more distinct lag phase of growth than ATCC 13030. Apart from this, they appeared to be very similar. On solid chemically defined GTP medium, some strains of Klebsiella were able to produce a water-soluble brown pigment.
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