IJEP 44(5): 437-444 : Vol. 44 Issue. 5 (May 2024)
Md. Tausif Alam, Surbhi Mandal, Yashasvi Shrivastava, Akanksha Gupta and Sadhna Chaturvedi*
ITM University Gwalior, School of Sciences, Department of Biotechnology and Microbiology, Gwalior – 474 001, Madhya Pradesh, India
Abstract
Soil salinity is a major factor that limits productivity worldwide, affecting various physiological, biochemical and molecular responses in leguminous crops. Despite the presence of salt stress, plant growth-promoting rhizobacteria (PGPR) can still colonize the roots of plants and stimulate their growth. Salt-tolerant PGPR plays a crucial role in mitigating the effects of salinity stress on legume crops, with specific characteristics, such as hormone production, nitrogen fixation and phosphate solubilization. By protecting legumes from saline stress conditions, these bacteria can increase crop sustainability. Salinity stress generates osmotic stress and ion toxicity, which ultimately leads to the production of reactive oxygen species and reduces crop productivity. This stress also disturbs photosynthesis and other hormonal productions required for the survival of legume crops. This paper focus on the role of rhizobacteria in the growth crops under various salinity stress conditions, as well as the salinity stress tolerance mechanism and the strategies to increase crop production and promote sustainable agriculture to meet today’s food demand.
Keywords
Salinity, Plant growth-promoting rhizobacteria, Sustainable agriculture
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