Rhizobium and Bradyrhizobium have attracted great attention due to their capacity to
establish a symbiosis with the roots of legumes, resulting in the reduction of atmospheric …

In recent years, our understanding of biological nitrogen fixation has been bolstered by a
diverse array of scientific techniques. Still, the origin and extant distribution of nitrogen …

A region of 16.8 kb of the Sym (biosis) plasmid pRL1JI of Rhizobium leguminosarum,
consisting of the established 9.7 kb nodulation region which confers nodulation ability on …

Soil bacteria of the genera Azorhizobium, Bradyrhizobium, and Rhizobium are collectively
termed rhizobia. They share the ability to penetrate legume roots and elicit morphological …

Since the first volume of Bergey's Manual of Systematic Bacteriology was published, in
1984, two additional genera and several new species of stem-and root-nodulating bacteria …

Large plasmids of molecular weight varying from 90 to around 200× 10 6 have earlier been
detected in most Rhizobium meliloti strains using an alkaline denaturation-phenol extraction …

An 18 kb region adjacent to and surrounding the genes for nitrogenase(nif) was cloned from
the genome of the symbiotic nitrogen-fixing species Rhizobium meliloti. A total of 31 Tn5 …

Bacteria of the genus Rhizobium fix nitrogen in symbiotic association with legumes such as
clover, pea and bean. If the efficiency of this plant–bacterium relationship is to be improved …

Pulsed-field gel electrophoresis was used to analyze the genomic organization of 16
bacteria belonging or related to the family Rhizobiaceae of the alpha subgroup of the class …

Taxonomic decisions within the order Rhizobiales have relied heavily on the interpretations
of highly conserved 16S rRNA sequences and DNA–DNA hybridizations (DDH). Currently …