期刊
3 BIOTECH
卷 5, 期 2, 页码 111-121出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s13205-014-0206-0
关键词
Bioremediation; Heavy metals; Hyperaccumulator plants; Phosphate-solubilizing bacteria; Phytoremediation; Rhizobacteria
Heavy metal pollution of soils is of great concern. The presence of the toxic metal species above critical concentration not only harmfully affects human health but also the environment. Among existing strategies to remediate metal contaminates in soils, phytoremediation approach using metal accumulating plants is much convincing in terms of metal removal efficiency, but it has many limitations because of slow plant growth and decreased biomass owing to metal-induced stress. In addition, constrain of metal bioavailability in soils is the prime factor to restrict its applicability. Phytoremediation of metals in association with phosphate-solubilizing bacteria (PSB) considerably overcomes the practical drawbacks imposed by metal stress on plants. This review is an effort to describe mechanism of PSB in supporting and intensifying phytoremediation of heavy metals in soils and to address the developmental status of the current trend in application of PSB in this context.
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