The role of mycorrhizae associated with vetiver grown in Pb-/ Zn-contaminated soils: Greenhouse study

Ching Chi Wong, Sheng Chun Wu, Clem Kuek, Abdul G. Khan, Ming Hung WONG*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

The effects of mycorrhizae on growth and uptake of N, P, Zn, and Pb by plants were investigated in a greenhouse trial using vetiver grass (Vetiveria zizanioides) as host. Inoculation of the host plants with arbuscular mycorrhizal fungi (AMF), Glomus mosseae and G. intraradices spores, significantly increased the growth and P uptake. Mycorrhizal colonization increased Pb and Zn uptake by plants under low soil metal concentrations (at 0 and 10 mg/kg of Pb or Zn), whereas under higher concentrations (at 100 and 1,000 mg/kg of Pb or Zn), it decreased Pb and Zn uptake. P concentration in soil was negatively correlated with mycorrhizal colonization as well as Zn or Pb concentrations. The results showed that inoculation of the host plants with AMF protects them from the potential toxicity caused by increased uptake of Pb and Zn, but the degree of protection varied according to the fungus and host plant combination. The potential of arbuscular mycorrhizae in phytoremediation of the Zn- or the Pb-contaminated soils is discussed in this article.

Original languageEnglish
Pages (from-to)60-67
Number of pages8
JournalRestoration Ecology
Volume15
Issue number1
DOIs
Publication statusPublished - Mar 2007

Scopus Subject Areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

User-Defined Keywords

  • Arbuscular mycorrhiza
  • Lead
  • Nitrogen
  • Phosphorus
  • Vetiver grass
  • Zinc

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