Bradyrhizobium Populations Occur in Deep Soil under the Leguminous Tree Acacia albida
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چکیده
منابع مشابه
Bradyrhizobium 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 کاملPhenotypic 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 کاملSeasonal pattern of nitrogen mineralization and soil moisture beneath Faidherbia albida (syn Acacia albida) in central Malawi
On fertile alluvial soils on the lakeshore plain of Malawi, maize (Zea mays L.) yields beneath canopies of large F aidherbia albida (syn Acacia albida) trees greatly exceed those found beyond tree canopies, yet there is little difference in soil nutrients or organic matter. To investigate the possibility that soil nutrient dynamics contribute to increased maize yields, this study focused on the...
متن کاملENRICHMENT OF BRADYRHIZOBIUM spp POPULATIONS IN SOIL DUE TO CROPPING OF THE HOMOLOGOUS HOST LEGUME
Host legumes can enrich their immediate soil environment with rhizobia through rhizosphere effects. The extent to which this enrichment occurs, the specificity of the process and its interaction with soil management factors remain poorly described. In a series of field trials, we measured changes in the size of indigenous populations of Bradyrhizobium in response to cropping of host and non-hos...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1992
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.58.8.2415-2419.1992