| phenotypic and genetic characterization of rhizobia associated with alfalfa in the hokkaido and ishigaki regions of japan. | twenty five rhizobial isolates were obtained from root nodules of medicago sativa inoculated with soil samples collected from the sapporo region and ishigaki island in japan. to study their diversity and characterize them in relation to the climatic conditions of their soils of origin, a polyphasic approach analyzing stress tolerance, symbiotic and genetic properties was used. stress tolerance assays revealed marked variations in salinity, ph and temperature tolerance. isolates originating from ... | 2011 | 21684705 |