Mutation in the cobO gene generates auxotrophy for cobalamin and methionine and impairs the symbiotic properties of Sinorhizobium fredii HH103 with soybean and other legumes

1. Medina, C.
2. Crespo-Rivas, J.C.
3. Moreno, J.
4. Espuny, M.R.
5. Cubo, M.T.