Nodulation Is Maintained and Salinity Tolerance Enhanced in Two Soybean Cultivars Inoculated With Sinorhizobium fredii Under Brackish Water.

ABSTRACT: Salinity is an increasing threat to agriculture, particularly in coastal regions affected by seawater intrusion and sea-level rise. This study evaluated the halotolerance and symbiotic potential of Sinorhizobium fredii USDA 208 in two soybean cultivars (includer and excluder) under three salinity levels-low (freshwater), moderate (brackish water), and high (seawater). The results demonstrated that S. fredii not only tolerates but also exhibits enhanced growth under moderate salinity. Nodulation was successfully established when salinity and inoculation occurred simultaneously. Nodulation was also maintained when salinity occurred after the inoculation, particularly in fresh and brackish water. Root development declined with increasing salinity, but the includer cultivar showed better root

SUBMITTER: Perez-Sepulveda M 

PROVIDER: S-EPMC12509254 | biostudies-literature | 2025 Sep-Oct

REPOSITORIES: biostudies-literature