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Exploring the Potential of Bacteria-Assisted Phytoremediation of Arsenic-Contaminated Soils
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 Title & Authors
Exploring the Potential of Bacteria-Assisted Phytoremediation of Arsenic-Contaminated Soils
Shagol, Charlotte C.; Chauhan, Puneet S.; Kim, Ki-Yoon; Lee, Sun-Mi; Chung, Jong-Bae; Park, Kee-Woong; Sa, Tong-Min;
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Arsenic pollution is a serious global concern which affects all life forms. Being a toxic metalloid, the continued search for appropriate technologies for its remediation is needed. Phytoremediation, the use of green plants, is not only a low cost but also an environmentally friendly approach for metal uptake and stabilization. However, its application is limited by slow plant growth which is further aggravated by the phytotoxic effect of the pollutant. Attempts to address these constraints were done by exploiting plant-microbe interactions which offers more advantages for phytoremediation. Several bacterial mechanisms that can increase the efficiency of phytoremediation of As are nitrogen fixation, phosphate solubilization, siderophore production, ACC deaminase activity and growth regulator production. Many have been reported for other metals, but few for arsenic. This mini-review attempts to present what has been done so far in exploring plants and their rhizosphere microbiota and some genetic manipulations to increase the efficiency of arsenic soil phytoremediation.
Arsenic pollution;Phytoremediation;Rhizosphere bacteria;Plant-microbe interaction;
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