Characterization of Endophytic Bacteria Isolated from and Their Effect in Plants Exposed to Either Pb or Cd.

Plant-associated bacteria in heavy-metal-contaminated environments could be a biotechnological tool to improve plant growth. The present work aimed to isolate lead- and cadmium-tolerant endophytic bacteria from the roots of growing in a site contaminated with these heavy metals. Endophytic bacteria were characterized according to Pb and Cd tolerance, plant-growth-promoting rhizobacteria activities, and their effect on seedlings exposed and non-exposed to Pb and Cd.