The population of nodulating R. leguminosarum bv. viciae in soil from a grass-covered valley area which had been used for bovine slurry deposition over a period of 5 years was analyzed. For these studies, a rapid and reproducible method based on enterobacterial repetitive intergenic consensus (ERIC)-PCR was applied to identify Rhizobium strains which had infected pea nodules. Soil samples were ...

The objective of this study was to evaluate the exopolysaccharide (EPS) production by Rhizobium leguminosarum cultivated in wastewater generated by oil companies (WWOC1 and WWOC2) and fish processing industry (WWFP). The results obtained in Erlenmeyer flasks indicated that the rhizobial strain grew well in industrial wastewater. Generally, wastewater composition affected the growth and the EPS ...

Centro de Ciencias Genómicas (B.N.-F., L.P.I., A.L., S.I.F., M.R., S.P., L.G., G.H.), Laboratorio Nacional de Microscopía Avanzada (X.A.-A.), and Departamento de Biología Molecular de Plantas (J.L.R.), Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210, Mexico; and Laboratorio de Genómica Funcional de Leguminosas, Facultad de Estudios Superiores Iztac...

The biodegradation by Rhizobium huakuii PMY1 of up to 10 mM phosphonomycin as a carbon, energy, and phosphorus source with accompanying P(i) release is described. This biodegradation represents a further mechanism of resistance to this antibiotic and a novel, phosphate-deregulated route for organophosphonate metabolism by Rhizobium spp.

Background: Indigenous rhizobial populations may be unable to achieve successful symbiosis in the field due rare population and unfavourable soil environment. Introduced plant growth promoting rhizobacteria (PGPR) are frequently linked faster growth, development, yield of with synergetic effect on indigenous Rhizobium bacteria. Furthermore, co-inoculating legumes both PGPR is proven more effect...

in this study, the ability of 32 rhizobium strains (26 strain of sinorhizobium meliloti (sm)), 4 strains of rhizobium leguminosarum biovar phaseoli (rlp) and 2 salt tolerance strains of rhizobium leguminosarum  biovar viciae (rlv) for use of acc as individual nitrogen source in rmm media was evaluated. based on the results, 25 strains were found positive for acc-deaminse, and strains according ...

A novel strategy for combating pathogens is through the ongoing development and use of anti-quorum sensing (QS) treatments such as therapeutic bacteria or their anti-QS substances. Relatively little is known about the bacteria that inhabit the open ocean and of their potential anti-pathogenic attributes; thus, in an initiative to identify these types of therapeutic bacteria, planktonic microbes...

We report here the complete genome sequence of Rhizobium sp. strain ACO-34A, isolated from Agave americana L. rhizosphere. No common nod genes were found, but there were nif genes for nitrogen fixing. A low average nucleotide identity to reported species supports its designation as a novel Rhizobium species that has a complete ribosomal operon in a plasmid.

As the electrophoretic mobility of a bacterium in a constant environment depends on properties of the surface of the organism, alterations in mobility have been used as a means of detecting changes in the structure of the surface. Changes have been detected in this way during the germination of spores and during the initial stages of growth of the vegetative form (Douglas & Parker, 1958 b), at ...

The presence of Fusarium species in cultivated soils is commonly associated with plant debris and plant roots. Fusarium species are also soil saprophytes. The aim of this study was to examine the occurrence and distribution of soil Fusarium spp. at different soil depths in a zero tillage system after the wheat was harvested. Soil samples were obtained at three depths (0-5 cm, 5-10 cm and 10-20 ...