Salinity is a biotic stress which is constraint for the plant growth and development, putting agriculture productivity and food security under stress globally. Potential use of plant growth promoting bacteria (PGPB) ameliorating the salinity stress through number of mechanisms evoking multipronged physiological, biochemical and molecular responses. By developing the novel inoculum for saline soil based on the recent studies concepts can be a sustainable approach in ameliorating productivity of affected agricultural land and food by simultaneously remediating salinity affected agricultural land. The metabolic and genetic properties of the PGPB have direct role in eliminating the harmful effect of salinity. Various mechanism of PGPB includes modification in cell wall/cell membrane, development of various enzymes, production of protein performing various metabolic function, production of osmolytes, siderophore production, improving the level of phytohormones (auxin, ethylene, cytokinin, abscisic acid, gibberellin), Exopolysaccharide (EPS) production. In spite of overwhelming advantages exact mechanism of PGPB ameliorating saline stress is not known so it is field to further investigate.
Exopolysaccharides, Osmolytes, Phytohormones, PGPB, Salinity stress, Siderophore
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