[Biological characteristics of bacteriophages infecting three typic rhizobia of legume].

Bacteriophages infecting rhizobia of legume leads to a significant decrease in the number of rhizobia in soil and nodulation in legume, which finally affects nitrogen fixation and remarkably reduces crop yield. However, limited studies have focused on bacteriophages of rhizobia. In this study, three typic rhizobium strains of Bradyrhizobium diazoefficiens USDA110, Sinorhizobium sojae CCBAU05684 and Sinorhizobium meliloti USDA1002 were used as the host bacteria.