Vitamin-dependent mutants were isolated from Yersinia pestis after the treatment with supermutagens. From 13 mutants obtained 10 appeared to be unstable. The stable vitamin-dependent mutants were revealed with the frequency of 2.5.10(-11) divided by 4.9.10(-11) by the indirect method of selection and 5.10(-7) by the use of Davis's method. The frequency of amino acid and nitrogen base dependent auxotroph isolation was significantly higher than that of the vitamin-dependent mutants.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
vitamin-dependent mutants
16
mutants
5
[occurrence induced
4
vitamin-dependent
4
induced vitamin-dependent
4
mutants yersinia
4
yersinia pestis]
4
pestis] vitamin-dependent
4
mutants isolated
4
isolated yersinia
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!