Phytoremediation of lead (Pb) and Arsenic (As) by Melastoma malabathricum L. from Contaminated Soil in Separate Exposure

S. Norleela Selamat, Siti Rozaimah Sheikh Abdullah, Mushrifah Idris

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This study was conducted to investigate the uptake of lead (Pb) and arsenic (As) from contaminated soil using Melastoma malabathricum L. species. The cultivated plants were exposed to As and Pb in separate soils for an observation period of 70 days. From the results of the analysis, M. malabathricum accumulated relatively high range of As concentration in its roots, up to a maximum of 2800 mg/kg. The highest accumulation of As in stems and leaves was 570 mg/kg of plant. For Pb treatment, the highest concentration (13,800 mg/kg) was accumulated in the roots of plants. The maximum accumulation in stems was 880 mg/kg while maximum accumulation in leaves was 2,200 mg/kg. Only small amounts of Pb were translocated from roots to above ground plant parts (TF < 1). However, a wider range of TF values (0.01-23) for As treated plants proved that the translocation of As from root to above ground parts was greater. However, the high capacity of roots to take up Pb and As (BF > 1) is indicative this plants is a good bioaccumulator for these metals. Therefore, phytostabilisation is the mechanism at work in M. malabathricum's uptake of Pb, while phytoextraction is the dominant mechanism with As.

Original languageEnglish
Pages (from-to)694-703
Number of pages10
JournalInternational Journal of Phytoremediation
Volume16
Issue number7-8
DOIs
Publication statusPublished - 2014

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Melastoma malabathricum
soil separates
Arsenic
phytoremediation
arsenic
polluted soils
Lead
Soils
stem
stems
plant anatomy
leaves
Metals
metals
exposure
contaminated soil
metal

Keywords

  • Melastoma malabathricum L
  • phytoextraction
  • phytoremediation
  • phytostabilisation

ASJC Scopus subject areas

  • Plant Science
  • Environmental Chemistry
  • Pollution

Cite this

Phytoremediation of lead (Pb) and Arsenic (As) by Melastoma malabathricum L. from Contaminated Soil in Separate Exposure. / Selamat, S. Norleela; Sheikh Abdullah, Siti Rozaimah; Idris, Mushrifah.

In: International Journal of Phytoremediation, Vol. 16, No. 7-8, 2014, p. 694-703.

Research output: Contribution to journalArticle

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