bradyrhizobium tropiciagri bradyrhizobium tropiciagri bradyrhizobium tropiciagri is a nitrogen-fixing bacterium from the genus of bradyrhizobium. bradyrhizobium tropiciagri scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: nitrobacteraceae genus: bradyrhizobium species: b. tropiciagri binomial name bradyrhizobium tropiciagridelamuta et al. 2015 type strain br 1009, semia 6148, lmg 28867, sms 303, cnpso 1112