Screening of Plants and Indigenous Bacteria to Improve Arsenic Phytoextraction

Arsenic (As) is one of the most common inorganic pollutants; unfortunately, it also toxic and therefore a cause great concern for health risks that could result from it. Removing arsenic soil using phytoremediation approaches an effective strategy, several studies demonstrate ability Cannabis sativa (TSN 19109, hemp) to tolerate this harmful contaminant. The aim work was identify best experimental conditions plan be applied in disused area located Sicily (Italy) contaminated by As, comparing with Brassica juncea 23059) Zea mays 42269, corn). To assist process, chelating agents were tested improve mobility, two different sets arsenic-tolerant bacteria isolated rhizospheric indigenous herbaceous species used promote plant growth, leading significant improvement terms biomass produced phytoextraction. After combined treatment, content aerial part plants increased more than orders magnitude (e.g., 0.05 6.57 mg kg?1, 0.04 6.69 0.03 5.57 kg?1 brassica, corn, hemp, respectively), confirming marked increase total absorption As plants.