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    Pharmacognosy Communications
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    Pharmacognosy Communications
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    Original Article

    Arsenic Concentration in Wild Plants Growing on Two Mine Tailings

    wadmin2By wadmin2June 16, 2015Updated:August 10, 2021No Comments2 Mins Read
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    Ma del Carmen Angeles, González-Chávez, Ariadna Scheherazada, Sánchez-López and Rogelio Carrillo- González*
    Edaphology Program, Soil and Environmental Chemistry Lab, Colegio de Postgraduados, Edafología, km 36.5 Carr. México-Texcoco 56230, Estado de México, México.

    Pharmacognosy Communications,2015,5,3,197-206.
    DOI:10.5530/pc.2015.3.5
    Published:June 2015
    Type:Original Article

    ABSTRACT

    Introduction: Plant metalloid contamination may represent an important pathway of Arsenic (As) intake by humans, wild herbivores and livestock. Objective: This study aimed at estimating Arsenic (As) exposition risks to wild plants naturally growing on the contaminated area of Zimapan, Hidalgo, Mexico. Materials and Methods: Arsenic concentrations in the rhizosphere, aerial and root parts, and deposition on leaves of wild plants from two mine tailings were analyzed. Results: The range of total and EDTA-extractable Arsenic (As) concentrations on the mine tailings were from 4016 to17,178 mg kg-1 and from 234 to 499 mg kg-1, respectively. Eleven plant species were the dominant vegetation. Some of these are important in the folk Mexican medicine. Retention of Arsenic (As) in aerial part was between 49 to 7,521 mg kg-1. The highest shoot As concentration, bioconcentration and translocation factors were observed in Gnaphalium. (2,939 mg kg-1, 5.7, 10.3) and Aster gymnocephalus leaves (2,409 mg kg-1, 8.6 and 9.6, respectively). Juniperus sp and Ruta graveolens behaved As excluders, while Dalea bicolor accumulated Arsenic (As) close to the maximum tolerate concentrations to animals. After a very drastic washing procedure, leaves still had structural high Arsenic (As) concentration (49-2, 940 mg kg-1). Conclusion: This study highlighted that plants are important organism for retaining Arsenic (As) not only on leaves surface but also structurally. Therefore, they strongly influence Arsenic (As) dispersion and risk from mine tailings. Phytoremediation using some of these plants is suggested taking into account control measures to deplete Arsenic (As) transfer to livestock or medicinal herb use.

    Keywords: Food web, Hyperaccumulation, Metalloid transfer, Native plants, Phytoremediation, Plant accumulation.

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    About Journal

    Pharmacognosy Communications [Phcog Commn.] is a quarterly journal published by Phcog.Net. It is a peer reviewed journal aiming to publish high quality original research articles, methods, techniques and evaluation reports, critical reviews, short communications, commentaries and editorials of all aspects of medicinal plant research. The journal is aimed at a broad readership, publishing articles on all aspects of pharmacognosy, and related fields. The journal aims to increase understanding of pharmacognosy as well as to direct and foster further research through the dissemination of scientific information by the publication of manuscripts. The submission of original contributions in all areas of pharmacognosy are welcome.
    Indexed and Abstracted in : Chemical Abstracts, Excerpta Medica / EMBASE, Google Scholar, CABI Full Text, Ulrich’s International Periodical Directory, ProQuest, Journalseek & Genamics, PhcogBase, EBSCOHost, Academic Search Complete, Open J-Gate, SciACCESS.
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