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...

Mutualisms are key determinants of community assembly and composition, but urbanization can alter the dynamics these interactions associated effects on ecosystem functions. Legume–rhizobia mutualisms a model interaction to evaluate ecological ecosystem-level urbanization, particularly urban-driven eutrophication nitrogen (N) deposition. Here, we evaluated how affected ecology mutualism between ...

A field study was undertaken during winter (rabi) season of 2013-2014 to explore the effect of graded levels of fertilizers and bio-fertilizers on yield of chickpea, protein content in chickpea seeds and nutrient uptake by the crop. Significantly higher seed and stover yields (1854, 2722 kg ha-1, respectively) were recorded with application of fertilizer @ 100% RDF (25:50:00, kg N:P:K ha-1). Re...

Four Rhizobium strains were isolated from berseem clover in Egypt. The symbiotically effective, salt-tolerant, strain Rhiz950 was identified as new species, Rhizobium aegypticaum sv. trifolii (USDA 7124(T)). The other three thermal- and pH-tolerant strains were identified as Rhizobium bangladeshense sv. trifolii, the type strain is USDA 7125(T).

Rhizobium sp. IRBG74 not only nodulates Sesbania cannabina but also can enhance rice growth; however, the underlying molecular mechanisms are not clear. Here, we show that Rhizobium sp. IRBG74 colonizes the roots of Arabidopsis thaliana, which leads to inhibition in the growth of main root but enhancement in the formation of lateral roots. The promotion of lateral root formation by Rhizobium sp...

A total of 128 strains was isolated from more than 23 legume hosts in Korea. Phylogenetic relationships between these Korean isolates and reference strains of the genera Bradyrhizobium, Mesorhizobium, Rhizobium and Sinorhizobium were analysed using their 16S rRNA gene and internally transcribed spacer (ITS) region sequences. Among the Bradyrhizobium strains, dendrograms based on both the 16S rR...

Both human bactericidal/permeability-increasing protein (BPI) and a recombinant amino-terminal fragment of BPI (rBPI23) have been shown to bind with high affinity to the lipid A region of lipopolysaccharide (LPS) (H. Gazzano-Santoro, J. B. Parent, L. Grinna, A. Horwitz, T. Parsons, G. Theofan, P. Elsbach, J. Weiss, and P. J. Conlon, Infect. Immun. 60:4754-4761, 1992). In the present study, lipi...

Pot and field experiments were done to establish the effect of Rhizobium inoculation, Molybdenum and lime supply on the availability of micronutrients (Cu, Zn, Mn, Fe, B and Mo) in Phaseolus vulgaris L. In both field and pot experiments, Rhizobium inoculation significantly improved uptake of Mn, Fe, Cu, Zn, B and Mo in all organs (roots, shoots, pods and whole plants) except the Mo uptake in ro...

Bernhard Epping, Alexander P. Hansen and Peter Martin Institut für Pflanzenernährung (330), Fruwirthstr. 20, Universität Hohenheim, 70593 Stuttgart, Bundesrepublik Deutschland Z. Naturforsch. 50 c, 543-551 (1995); received March 15/May 2, 1995 Oxygen Derivates, Phaseolus vulgaris L.. Rhizobium leguminosarum, Rhizobium tropici, Symbiotic Effectivity Nodules of Rhizobium leguminosarum bv. phaseol...