1887

Abstract

SUMMARY: The chemical and functional stability of mRNAs was dependent on the nitrogen status of the organism. During exponential growth on N or NH as N-source the half-lives of mRNAs were 10 and 4 min, respectively. When NH -grown cells were starved of NH for 3 h, under which conditions the nitrogen fixation () genes were derepressed, the half-life of mRNAs increased to 20 min. Addition of NH to such N-starved suspensions rapidly destabilized mRNAs with a resultant half-life of 9 min. This destabilization occurred even in the presence of transcription inhibitors, which indicated metabolic control of mRNA degradation. Under most conditions studied the functional decay of -specific mRNAs paralleled the decay of bulk mRNAs.

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/content/journal/micro/10.1099/00221287-128-12-3011
1982-12-01
2019-09-15
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-128-12-3011
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