Five mutants (called tnm) of Escherichia coli with impaired ability for transposition of Tn9 were isolated after treatment with ethyl methanesulfonate (EMS) or N-methyl-N'-nitro-N-nitrosoguanidine (NG). The map locations of the tnm mutations were determined by a combination of Hfr matings, F' episom
Isolation and phenotypes of mutants from Escherichia coli K-12 defective in nitrite-reductase activity
โ Scribed by A. Abou-Jaoude; M.C. Pascal; F. Casse; M. Chippaux
- Book ID
- 109310100
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 279 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0378-1097
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Mutants of E. coli, completely devoid of nitrite reductase activity with glucose or formate as donor were studied. Biochemical analysis indicates that they are simultaneously affected in nitrate reductase, nitrite reductase, fumarate reductase and hydrogenase activities as well as in cytochrome C552
A method was developed for the isolation of spontaneous mutants of Escherichia coli K-12 with deletions extending from the srl operon to the adjacent recA gene. The srl-recA deletion mutants were extremely sensitive to dNA-damaging agents; unable to support growth of the feckless red gam mutant lamb