Year: 2014 | Month: March and June | Volume 2 | Issue 1 and 2
Lead Stress-induced Changes of Antioxidant Enzymes and Biochemical Compounds in Selected Weeds and their Contribution for Phytoremediation
DOI:Coming soon...
Abstract:
Investigation was carried out to identify tolerant plant species growing in lead contaminated soil. Lead effected Chlorophyll a, chlorophyll b and ascorbicacidoxidase. Induced malondialdehyde and starch contents with up-regulated activities of antioxidative enzymes like catalase and phenylalanineammonialyase were observed. Enzymatic activities have been enhanced in all plants taken indicating that free radical generation was accelerated due to Pb exposure. Concentrations of lead accumulated were Calotropis procera (90 mg/kg) and Bromus tectorum (77 mg/kg) are higher followed by Ipomea purpurea (72 mg/kg), Parthenium histocarpus (33 mg/kg), Anisomilius molabarica (29 mg/kg) and Eichornia fasculata (10 mg/kg). Inspite of accumulation all plants survived successfully. With our findings we can suggest these plants can be used for effective phytoremediation of lead.
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