Abstract
The increasing global population and accompanying threats to the environment are making it difficult to meet the world’s food requirements. A sustainable and eco-friendly approach mediated through transgenic plant and plant growth-promoting bacteria (PGPB) is a potential solution to the problem of food insecurity. It is envisioned that PGPB can be used instead of chemicals in agriculture to protect the environment from damage. Abiotic stress causes major crop loss worldwide and PGPB can mitigate this stress via direct interaction with plants, improving the availability of essential nutrients and regulating various phytohormones and plant stress hormonal status. PGPB also create a competitive environment for plant pathogens by limiting nutrients, synthesizing fungal lytic enzymes, and exerting biocontrol activity, all of which promote plant growth and development. PGPB facilitates the host plant to manage abiotic stress and helps to remediate pollutants. This chapter discusses PGPB as a promising tool for environmental sustainability.
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