1887

Abstract

Summary: The rate of accumulation of ammonium ion in cultures of was independent of the growth rate and of the initial urea concentration above 0·025% in the medium, although the quantity of ammonium ion accumulating did depend on the initial urea concentration. Ammonium ions accumulated at a similar rate in cultures of both rapidly and slowly growing organisms. Viable but non-growing ureaplasmas also produced ammonia in complete medium at a lower temperature than usual (25°C) or in an inadequate growth medium at 37°C. The rate of ammonium ion accumulation in a dying culture depended on the number of viable organisms present; this is relevant to diagnostic methods for ureaplasmas which depend on detecting ammonia colorimetrically.

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/content/journal/micro/10.1099/00221287-98-2-587
1977-02-01
2021-08-05
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