ABSTRACT

Salinity stress significantly affects fertile lands having huge impacts on agriculture and economies. More than 62 million hectares in the world is affected by high salinity. Different strategies for obtaining salt-tolerant plants have been developed. However, there are also promising alternative methods for coping with such abiotic stress, such as classical breeding with the special formulation of halotolerant plant growth-promoting bacteria (PGPB). This chapter begins by outlining the use of PGPB as an alternative strategy for improving salt tolerance in plants. Special emphasis has been placed on PGPB in saline soil, including different mechanisms for PGPB-mediated salt-stress tolerance in plants. Finally, future research trends for the reclamation of saline agro-ecosystems are highlighted.