Effects of inoculation of plant growth-promoting rhizobacteria on metal uptake by Brassica juncea

S. C. WU, K. C. CHEUNG, Y. M. LUO, Ming Hung WONG

Research output: Contribution to journalArticles

180 Citations (Scopus)

Abstract

A greenhouse study was carried out with Brassica juncea to critically evaluate effects of bacterial inoculation on the uptake of heavy metals from Pb-Zn mine tailings by plants. Application of plant growth-promoting rhizobacteria, including nitrogen-fixing bacteria and phosphate and potassium solubilizers, might play an important role in the further development of phytoremediation techniques. The presence of these beneficial bacteria stimulated plant growth and protected the plant from metal toxicity. Inoculation with rhizobacteria had little influence on the metal concentrations in plant tissues, but produced a much larger above-ground biomass and altered metal bioavailability in the soil. As a consequence, higher efficiency of phytoextraction was obtained compared with control treatments. Copyright © 2005 Published by Elsevier Ltd.

Original languageEnglish
Pages (from-to)124-135
JournalEnvironmental Pollution
Volume140
Issue number1
DOIs
Publication statusPublished - Mar 2006

Citation

Wu, S. C., Cheung, K. C., Luo, Y. M., & Wong, M. H. (2006). Effects of inoculation of plant growth-promoting rhizobacteria on metal uptake by Brassica juncea. Environmental Pollution, 140(1), 124-135. doi: 10.1016/j.envpol.2005.06.023

Keywords

  • Zinc mine tailings
  • Lead mine tailings
  • Bacterial inoculation
  • Brassica juncea
  • Metal uptake
  • Metal bioavailability
  • Soil enzymes

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