Abstract: The contamination harm by soil heavy metals is extensive. The cost of traditional physical and chemical remediation methods is expensive. Moreover, the disturbance of traditional methods on environment is severe. It has been proven that phytoremediation is more effective than other methods and easily operated. This paper discussed the phytoremediation technique of single plants, combination of plants and microbes, as well as combination of plants and chemical treatment, and emphatically introduced the research of hyperaccumulation plant and the synthesis of phytochelatin (PCs). It is forecasted that future disquisitive emphases are the application of biochelator along with combination remediation of animals, plants and microbes.

Key words: Maize, Entophytic bacteria, Population, Dynamic analysis, Genetic background