Legume agglutinins that bind to Rhizobium meliloti
نویسندگان
چکیده
منابع مشابه
Lipopolysaccharides in Rhizobium-legume symbioses.
The establishment of nitrogen-fixing symbiosis between a legume plant and its rhizobial symbiont requires that the bacterium adapt to changing conditions that occur with the host plant that both promotes and allows infection of the host root nodule cell, regulates and resists the host defense response, permits the exchange of metabolites, and contributes to the overall health of the host. This ...
متن کاملInterference between Rhizobium meliloti and Rhizobium trifolii nodulation genes: genetic basis of R. meliloti dominance.
Transfer of an IncP plasmid carrying the Rhizobium meliloti nodFE, nodG, and nodH genes to Rhizobium trifolii enabled R. trifolii to nodulate alfalfa (Medicago sativa), the normal host of R. meliloti. Using transposon Tn5-linked mutations and in vitro-constructed deletions of the R. meliloti nodFE, nodG, and nodH genes, we showed that R. meliloti nodH was required for R. trifolii to elicit both...
متن کاملHigh-frequency transformation of Rhizobium meliloti.
Transformation of R factor RP4 and its derivative pRK290 from Escherichia coli to Rhizobium meliloti is reported. The efficiency of transformation was in the range of 10(-5) per viable cell. In addition, chromosomal DNA prepared from one R. meliloti strain resistant to streptomycin was transferred to the isoleucine-valine-requiring mutant susceptible to streptomycin.
متن کاملRhizobium meliloti Nodulation Genes: Identification of nodDABC
A set of conserved, or common, bacterial nodulation (nod) loci is required for host plant infection by Rhizobium melioti and other Rhizobium species. Four such genes, nodDABC, have beeii indicated in R. meliloti 021'by genetic analysis and DNA sequencing. An essential step toward Iunderstanding the function of these genes is to characterize their protein products. We used in vitro and maxicell ...
متن کاملGenetic map of Rhizobium meliloti megaplasmid pRmeSU47b.
A circular linkage map of the Rhizobium meliloti megaplasmid pRmeSU47b was constructed. The map consists of transposon insertions carrying alternating antibiotic resistance markers linked by phi M12 transduction. Data from conjugation experiments utilizing donor strains carrying Tn5-oriT insertions in the megaplasmid supported the proposed genetic map. In addition, the positions of previously i...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1985
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.162.2.784-789.1985