Effects of plasmid curing on Rhizobium spp.
نویسندگان
چکیده
منابع مشابه
Effect of Sym Plasmid Curing on Symbiotic Effectiveness in Rhizobium fredii.
A mutant, USDA 206C, of Rhizobium fredii USDA 206 was obtained by passage on acridine plates. This mutant was cured of its 197-megadalton Sym plasmid but retained its symbiotic effectiveness. Multiple plasmid and chromosomally borne nif gene copies have previously been shown in R. fredii USDA 206. HindIII and EcoRI restriction enzyme digests of plasmid and total DNA showed that at least two nif...
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ABSTRACT The curing of five medicinal plant extracts (Satureia hortensis, Glycyrrhiza glabra, Teucrium Pollium, Myrtus Communis, Eukalypetus globolus) on plasmid bearing strains of klebsilla pnenmoniae resistance to multiple antibiotics were investigated. Alcoholic and maceration extraction were carried out from leaves, fruits or roots of the above plants. Mimimum inhibitory concentrations (MI...
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34 Present study was carried out to determine the difference between the wild type rhizobial strains and plasmid cured strains for some important characteristics such as antibiotic resistance. The rhizobial strains were isolated from locally produced legumes of different varieties such as Pisum sativum, Sesbania aculeata, Vigna mungo, Phaseolus vulgaris, Lens culinaris and Arachis hypogea.They ...
متن کاملPlasmid replicons of Rhizobium.
Rhizobium spp. are found in soil. They are both free-living and found symbiotically associated with the nodules of leguminous plants. Traditionally, studies have focused on the association of these organisms with plants in nitrogen-fixing nodules, since this is regarded as the most important role of these bacteria in the environment. Rhizobium sp. are known to possess several replicons. Some, l...
متن کاملPlasmid curing in bacteria pdf
Plasmids are extrachromosomal pieces of double-stranded circular DNA which have the capability to replicate independently of the.Growth dynamics of multiple component communities of bacteria. Thus curing by acridines normally involves loss of the whole plasmid.Plasmids are extrachromasomally replicating molecules of DNA present in bacteria.Plasmid curing is a process of completely removing plas...
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ژورنال
عنوان ژورنال: Stamford Journal of Microbiology
سال: 2013
ISSN: 2408-8846,2074-5346
DOI: 10.3329/sjm.v2i1.15212