ISOLATION OF SPONTANEOUSLY DERIVED MUTANTS OF CAULOBACTER CRESCENTUS
Open Access
- 1 May 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Genetics
- Vol. 86 (1) , 25-32
- https://doi.org/10.1093/genetics/86.1.25
Abstract
Caulobacter crescentus has a penicillinase which precludes the use of penicillin for mutant enrichment. However, two other antibiotics, fosfomycin and D-cycloserine, can be used to enrich for C. crescentus mutants. In enrichment procedures for C. crescentus auxotrophs, spontaneously derived mutants occur at a frequency of 5–10% among the survivors of an enrichment procedure. Consequently, large numbers of mutants are readily obtained without any need for mutagenesis. These mutants are heterogeneous both with regard to the type of mutation and to the nutritional requirement. A similar procedure has been used to isolate temperature-sensitive mutants.This publication has 9 references indexed in Scilit:
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