Dual functions of Streptococcus salivarius urease.

نویسندگان

  • Y Y Chen
  • C A Weaver
  • R A Burne
چکیده

A urease-deficient derivative of Streptococcus salivarius 57.I was constructed by allelic exchange at the ureC locus. The wild-type strain was protected against acid killing through hydrolysis of physiologically relevant concentrations of urea, whereas the mutant was not. Also, S. salivarius could use urea as a source of nitrogen for growth exclusively through a urease-dependent pathway.

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عنوان ژورنال:
  • Journal of bacteriology

دوره 182 16  شماره 

صفحات  -

تاریخ انتشار 2000