Tn5dependent streptomycin resistance inMethylobacterium organophilum
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چکیده
منابع مشابه
Streptomycin resistance in a streptomycin-producing microorganism.
Cell-free extracts of Streptomyces bikiniensis contain an adenosine 5'-triphosphate-dependent kinase which inactivates streptomycin (Sm) and dihydrostreptomycin by phosphorylation. The products have been identified as streptomycin 6-phosphate and dihydrostreptomycin 6-phosphate. Activity was not present in logarithmic-phase cells, which were susceptible to 25 mug of Sm per ml. In stationary-pha...
متن کاملResistance factor-mediated streptomycin resistance.
Resistance (R) factor-mediated streptomycin (Sm) resistance differs from classical, high-level, chromosome-borne Sm resistance in its dominance over sensitivity and in the level of its effectiveness (in Escherichia coli approximately 25 mug/ml versus >2,000 mug/ml). In addition, an R factor-containing strain, unlike high-level Sm-resistant bacteria, showed an inoculum effect with respect to its...
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WALTHO, JUDITH A. (University of Melbourne, Victoria, Australia), AND B. W. HOLLOWAY. Suppression of fluorophenylalanine resistance by mutation to streptomycin resistance in Pseudomonas aeruginosa. J. Bacteriol. 92:35-42. 1966.Fluorophenylalanine-resistant mutants (fpa-r) of Pseudomonas aeruginosa have been isolated. By cotransduction analysis, the mutations were shown to have at least two chro...
متن کاملHost-dependent transposon Tn5-mediated streptomycin resistance.
Transposon Tn5 encodes streptomycin resistance in addition to kanamycin-neomycin resistance. This resistance was not detectable in Escherichia coli but was efficiently expressed in Rhizobium meliloti and certain other strains. By analysis of cloned Tn5 restriction endonuclease fragments, the streptomycin resistance (str) gene was located in the right-hand side of the central region as the trans...
متن کاملStudies of the Streptomycin - Resistance System
NIQUE opportunities for the study of mutations, both spontaneous and U induced, have been offered by what we may call the " phage-resistance system '? of bacterial changes from sensitivity to resistance to bacteriophages. In studying this system it is easy to work with large numbers of bacteria (1 x 108 per Petri dish) ; and if sufficient quantities of phage are added, all sensitive bacteria wi...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1982
ISSN: 0378-1097,1574-6968
DOI: 10.1111/j.1574-6968.1982.tb08220.x