1887

Abstract

Summary

Extracellular protease of is repressible by ammonium. A mutant () selected for derepression of protease in the presence of ammonium is also derepressed for nitrate reductase, xanthine dehydrogenase and glutamate uptake; it retains the ability to use ammonium as sole nitrogen source. The mutant is partially dominant in heterozygous diploids. The mutation does not confer methylamine resistance, nor are methylamine-resistant() strains derepressed for protease.

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/content/journal/micro/10.1099/00221287-71-2-293
1972-07-01
2022-01-22
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