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Arsenic Accumulation and Translocation in Mangrove ( Aegiceras corniculatum L. ) Grown in Arsenic Contaminated Soils

Author

Listed:
  • Gui-Rong Wu

    (Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361000, China
    College of Chemical and Biological Engineering, Hezhou University, Hezhou 542800, China)

  • Hua-Long Hong

    (Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361000, China)

  • Chong-Ling Yan

    (Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361000, China)

Abstract

Mangrove wetlands serve as both a sink and source for arsenic (As), as mangrove plants are able to uptake and accumulate As. The present study used pot experiments to evaluate As accumulation and translocation in mangrove (Aegiceras corniculatum L.) seedlings grown in As contaminated soils. Results indicated that A. corniculatum seedlings grew normally under As stress with minute growth inhibition and biomass reduction at different As treatment concentrations in a range of 0–150 mg·kg−1. As concentrations in roots, stems and leaves were increased with increasing As treatment concentrations, but As accumulated mainly in roots, with accumulation rates of 74.54%–89.26% of the total As accumulation. In particular, relatively high bioconcentration factor (BCF) in root (2.12–1.79), low BCF in stem (0.44–0.14) and leaf (0.06–0.01), and thereby a low translocation factor (TF) in stem/root (0.21–0.08) and leaf/root (0.02–0.008) were observed. These results demonstrated that A. corniculatum is an As excluder with the innate capacity to tolerate As stress and root tissues may be employed as a bio-indicator of As in polluted sediments. Additionally, A. corniculatum is a potential candidate mangrove species for As phytostabilization in tropical and subtropical estuarine wetlands.

Suggested Citation

  • Gui-Rong Wu & Hua-Long Hong & Chong-Ling Yan, 2015. "Arsenic Accumulation and Translocation in Mangrove ( Aegiceras corniculatum L. ) Grown in Arsenic Contaminated Soils," IJERPH, MDPI, vol. 12(7), pages 1-10, June.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:7:p:7244-7253:d:51778
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    Cited by:

    1. Thinh Nguyen Van & Yasuhito Osanai & Hai Do Nguyen & Kiyoshi Kurosawa, 2017. "Arsenic Speciation and Extraction and the Significance of Biodegradable Acid on Arsenic Removal—An Approach for Remediation of Arsenic-Contaminated Soil," IJERPH, MDPI, vol. 14(9), pages 1-16, August.

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