● Martínez-Hidalgo P,Ramírez-Bahena MH,Flores-Félix JD,Igual JM,Sanjuán J,León-Barrios M,Peix A,Velázquez E (2016). Reclassification of strains MAFF 303099T and R7A into the new species Mesorhizobium japonicum sp. nov. Int. J. Syst. Evol. Microbiol..