| Literature DB >> 9125589 |
Abstract
Enrichment with D-cycloserine was used to identify Escherichia coli auxotrophic mutants that exhibited limited growth in human urine. Bacterial synthesis of guanine, arginine, and glutamine was found to be required for optimal growth in urine. Mutants that required leucine, methionine, serine, phenylalanine, or proline also exhibited reduced growth in urine. Several other nutritional mutants, including nicotinamide auxotrophs, which are found frequently among cystitis isolates, exhibited normal growth in urine.Entities:
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Year: 1997 PMID: 9125589 PMCID: PMC175252 DOI: 10.1128/iai.65.5.1960-1961.1997
Source DB: PubMed Journal: Infect Immun ISSN: 0019-9567 Impact factor: 3.441