Phenotypic and Genotypic Characterization of Bradyrhizobia Nodulating the Leguminous Tree Acacia albida
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منابع مشابه
Phenotypic and genotypic characterization of bradyrhizobia nodulating the leguminous tree Acacia albida.
Rhizobial isolates that were obtained from both surface and deep soil samples in the Sahelian and Sudano-Guinean areas of Senegal (West Africa) under Acacia albida trees were compared with representative strains of known rhizobial species and genera. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) of proteins was used to determine the taxonomic positions of these organisms ...
متن کاملBradyrhizobium Populations Occur in Deep Soil under the Leguminous Tree Acacia albida.
Soil cores were drilled under the leguminous tree Acacia albida growing in two different ecoclimatic zones of West Africa: the Sahelian area (100 to 500 mm of annual rainfall) and the Sudano-Guinean area (1,000 to 1,500 mm of annual rainfall). Soil samples were collected at different depths from the surface down to the water table level and analyzed for the presence of rhizobia able to nodulate...
متن کاملBradyrhizobium sp. Strains that nodulate the leguminous tree Acacia albida produce fucosylated and partially sulfated nod factors.
We determined the structures of Nod factors produced by six different Bradyrhizobium sp. strains nodulating the legume tree Acacia albida (syn. Faidherbia albida). Compounds from all strains were found to be similar, i.e., O-carbamoylated and substituted by an often sulfated methyl fucose and different from compounds produced by Rhizobium-Mesorhizobium-Sinorhizobium strains nodulating other spe...
متن کاملDiscrepancies between the phenotypic and genotypic characterization
26 27 28 Aims: The use of RAPD-PCR fingerprinting and plasmid profiles to determine at the 29 strain level, the similarity of Lactococcus lactis isolates obtained during sampling of 30 traditional cheeses and to verify its correspondence to the selected phenotypic 31 characteristics. 32 Methods and Results: A total of 45 L. lactis isolates were genotypically analyzed by 33 RAPD-PCR fingerprinti...
متن کاملDetection, Characterization, and Biological Effect of Quorum-Sensing Signaling Molecules in Peanut-Nodulating Bradyrhizobia
Bacteria of the genus Bradyrhizobium are able to establish a symbiotic relationship with peanut (Arachis hypogaea) root cells and to fix atmospheric nitrogen by converting it to nitrogenous compounds. Quorum sensing (QS) is a cell-cell communication mechanism employed by a variety of bacterial species to coordinate behavior at a community level through regulation of gene expression. The QS proc...
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ژورنال
عنوان ژورنال: International Journal of Systematic Bacteriology
سال: 1994
ISSN: 0020-7713,1465-2102
DOI: 10.1099/00207713-44-3-461