Diversity and biotechnological potential of rhizobia isolated from lima bean nodules collected at a semiarid region

• DOI: 10.1002/saj2.20272
• Publication Date: 2021-05-12T06:51:33Z
• Authors: Tainara Louzada R...; Elaine Martins da...; Paula Rose de Alm...; Fernanda de Carvalho; Márcia Rufini; Aline Oliveira Silva; Anita Fernanda do...; Thiago de Assis P...; Flávia Reis Sales; Fatima Maria de S...
• Keywords: Bradyrhizobium; Axenic

Abstract Lima bean ( Phaseolus lunatus L.) is the second most important species of genus worldwide. In Brazil, it grown primarily in semiarid Northeast region. Although lima establishes symbiosis with N 2 ‐fixing bacteria (rhizobia), there not yet a recommended inoculant. The aim this study was to phenotypically and genotypically characterize rhizobia strains isolated from root nodules collected region, evaluate their efficiency supplying nutrition crop under axenic conditions Humic Rhodic Hapludox without correction acidity. symbiotic efficiencies were evaluated greenhouse and, afterward, pots nonautoclaved soil liming. Treatments consisted evaluation, controls inoculation (with low or high concentration mineral N), strain efficient for crop. all, 66 predominance belonging Bradyrhizobium genus. Liming brought about increases development as interacted some strains. Six genus, groups type that include B. elkanii japonicum , stood out biotechnological potential inoculants bean, they should be tested field validating recommendation