Bradyrhizobium sp endosymbiont bacteria nodulate several species of spontaneous leguminous plants of Genisteae tribe from northeastern of Algeria.

218 bacterial isolates obtained from different legume species belonging to the Gensisteae tribe (Lupinus micruntus, Retama sphaerocarpa, Retama raetam and Cytisus vilosus) from different sampling sites in Algeria were studied. Cultivated on YMA medium these strains show a slow growth. The phylogenetic analysis based on 16S rDNA and the household genes of the representatives of these strains indicates that they belong to the genus Bradyrhizobium. A variety of Bradyrhizobium sp. (1, 2, 3) is present in this collection with the presence of strains that can lead to new species. (1) Boulila Farida et al., (2009). Syst. Appl. Microbiol. 32:245?255. (2) Ahnia, et al (2014). Antonie van Leeuwenhoek, J.Microbiol. ISSN 0003-6072, Volume 105 [6] 1121?1129. (3) Bourebaba and al., (2016). Syst. Appl. Microbiol. 39 266?274. This study was supported by the AECID project A1/038234/11. Bourebaba acknowledges support of the National Exceptional. Program (PNE), a fellowship from the Ministry of Higher Education and Scientific research of Algeria at CBGP, Madrid