Effect of panchakavya (organic formulation) on phytoremediation of lead and zinc using Zea mays. (May 2020)

• Record Type: Journal Article
• Authors: Praburaman, Loganathan; Park, Jung-Hee; Park, Yool-Jin; He, Zhiguo; Kamala-Kannan, S.; Oh, Byung-Taek
• Is Part Of: Chemosphere. Volume 246(2020)
• Publication Date: 2020-05
• Subjects: Antioxidant enzymes -- Metals -- Panchakavya -- Phytoremediation -- Sequential extraction; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2019.125810
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Chelate-assisted phytoextraction is proposed to be an effective approach for the removal of metals from contaminated soil. Organic chelators can improve this biological technique by increasing metal solubility. The aim of this study was to investigate the possibility of improving the phytoextraction of lead (Pb) and zinc (Zn) by the application of panchakavya, a traditional Indian organic formulation. Panchakavya was prepared by fermentation process in open environment using cow dunk, cow ghee, cow urine, cow milk, cow curd, tender coconut water, crude jaggery, and mashed bananas. Soil metal fraction studies indicate that the panchakavya treatment decreased (73%) water-soluble fraction of Pb. Plant growth analysis indicated the application of panchakavya to increase Zea mays fresh root weight, shoot biomass and superoxide dismutase level in Zn contaminated soil. Similarly, a significant increase in the Zn accumulation (12% in shoots and 9% in roots) was observed in panchakavya treated plants. However, when compared to control plants, panchakavya treatment significantly decreased (32% in shoots and 37% in roots) Pb accumulation in Z. mays . Obtained results point out that panchakavya could potentially increase the phytoremediation of Zn in Z. mays . Highlights: Panchakavya treatment increased the growth rate of Z. mays in metals amended soil. Water soluble Pb fraction was decreased in the panchakavya treated soil. Increased Zn accumulation was observed in the panchakavya treated Z. mays plants. Antioxidative enzyme levels were increased in panchakavya treated Z. mays plants.