show Abstracthide AbstractThe genus Bradyrhizobium compreende microorganisms with the capacity to efficiently in the fixing nitrogen associated with plants are of great interest to agriculture as well as the source of new tools for the production of biopolymers the polyhydroxyalkanoates. Bradyrhizobium elkanii TnphoA 33 is a substrain of Bradyrhizobium elkanii 587 that contains a TnphoA transposon