Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Progress in Natural Science 43-49 Retama raetam Rhizobia 16S rRNA gene sequence Tunisia 2008 fdi:010042451 ENG Progress in Natural Science 1002-0071 CC:0002523484-0006 1 10.1016/j.pnsc.2007.06.002 https://www.documentation.ird.fr/hor/fdi:010042451 https://www.documentation.ird.fr/intranet/publi/2008/02/010042451.pdf 18 Horizon (IRD) The aim of this study is to investigate the diversity of Retama raetam root-nodule bacteria isolated from and regions of Tunisia. Twelve isolates, chosen as representative for different 16S rRNA gene patterns, were characterized by 16S rRNA gene sequencing and phenotypic analysis. Isolates were assigned to Sinorhizobium, Rhizobium and Agrobacterium. Symbiotic properties of Sinorhizobium and Rhizobium isolates showed a large diversity in their capacity to infect their host plant and fix atmospheric nitrogen. Strain RK 22 identified as Rhizobium was the most effective isolate. 084