Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988 emend. De Lajudie et al. 1994 Rhizobium fredii Scholla and Elkan 1984 Ensifer fredii Young 2003 emend. Hördt et al. 2020 pro synon. Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988 emend. De Lajudie et al. 1994 Willems A. Collins M.D. Phylogenetic Analysis of Rhizobia and Agrobacteria Based on 16s rRNA Gene Sequences 1993 43 2 305 313 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-43-2-305 8494742 Chen W.X. Yan G.H. Li J.L. Numerical taxonomic study of fast-growing soybean rhizobia and a proposal that Rhizobium fredii be assigned to Sinorhizobium gen. nov. 1988 38 4 392 397 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-38-4-392 Young J.M. The genus name Ensifer Casida 1982 takes priority over Sinorhizobium Chen et al. 1988, and Sinorhizobium morelense Wang et al. 2002 is a later synonym of Ensifer adhaerens Casida 1982. Is the combination Sinorhizobium adhaerens (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. 2003 53 6 2107 2110 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.02665-0 14657154 Kuzmanović N. Fagorzi C. Mengoni A. Lassalle F. diCenzo G.C. Taxonomy of Rhizobiaceae revisited: proposal of a new framework for genus delimitation. 2022 72 3 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.005243 35238735 Oyaizu H. Matsumoto S. Minamisawa K. Gamou R. Distribution of Rhizobia in leguminous plants surveyed by phylogenetic identification 1993 39 339 354 The Journal of General and Applied Microbiology J Gen Appl Microbiol 0022-1260 1349-8037 note: rid.8043, rid.6636, rid.11235 corroborate D14516.