ABSTRACT

This chapter examines an effort to highlight the ways in which the favorable association between plants and plant-growth-promoting rhizobacteria can be used to remediate heavy metal-contaminated soils. Growth-promoting microbes are effectively used for promoting plant growth and yield as well as metal absorption. The use of metal-resistant microbes has proven to be an effective method of phytoremediation of metals as their presence enables the plant to survive in highly contaminated matrices by lightening the metal stress. Phytoremediation is a green technology that exploits the potential of plants to accumulate, degrade, extract, immobilize, and lessen the risks posed by toxic heavy metals, metalloids, organics, and radionuclides. Heavy metals like cadmium, chromium, cupper, mercury, nickel, lead, and arsenic cause pollution in water, air, and soil and are common pollutants, which are introduced into the environment by both natural and anthropogenic activities.