Feasibility of enhanced phytoextraction of Zn contaminated soil with Zn mobilizing and plant growth promoting endophytic bacteria

Xin Xian Long*, Xue Mei Chen, Jonathan W C WONG, Ze Bin Wei, Qi Tang Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Three bacterial endophytes of Sedum alfredii, VI8L2, II8L4 and VI8R2, were examined for promoting soil Zn bioavailability and Zn accumulation in S. alfredii. Results showed that three strains were re-introduced into S. alfredii rhizosphere soils under Zn stress and resulted in better plant growth, as roots biomass increased from 80% to 525% and shoot biomass from 11% to 47% compared with the uninoculated ones. Strains IV8L2, II8L 4 and IV8R2 significantly increased shoot and root Zn concentrations in the ZnCO3 contaminated soil. Inoculation with strain IV8L2 resulted in 44% and 39% higher shoot and root Zn concentrations, while strain IV8R2 significantly decreased shoot Zn concentration in the Zn3(PO4) 2 contaminated soils. In the aged contaminated soil, isolates IV 8L2, II8L4 and IV8R 2 significantly increased root Zn concentration, but decreased shoot Zn concentration of Sedum alfredii. It suggested that endophytes might be used for enhancing phytoextraction efficiency.

Original languageEnglish
Pages (from-to)2389-2396
Number of pages8
JournalTransactions of Nonferrous Metals Society of China
Volume23
Issue number8
DOIs
Publication statusPublished - Aug 2013

Scopus Subject Areas

  • Condensed Matter Physics
  • Geotechnical Engineering and Engineering Geology
  • Metals and Alloys
  • Materials Chemistry

User-Defined Keywords

  • bioavailability
  • endophytic bacteria
  • phytoremediation
  • Sedum alfredii
  • Zn

Fingerprint

Dive into the research topics of 'Feasibility of enhanced phytoextraction of Zn contaminated soil with Zn mobilizing and plant growth promoting endophytic bacteria'. Together they form a unique fingerprint.

Cite this