Effect of genetically modified poplars on soil microbial communities during the phytoremediation of waste mine tailings

Moonsuk Hur, Yongho Kim, Hae Ryong Song, Jong Min Kim, Young Im Choi, Hana Yi

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

The application of transgenic plants to clean up environmental pollution caused by the wastes of heavy metal mining is a promising method for removing metal pollutants from soils. However, the effect of using genetically modified organisms for phytoremediation is a poorly researched topic in terms of microbial community structures, despite the important role of microorganisms in the health of soil. In this study, a comparative analysis of the bacterial and archaeal communities found in the rhizosphere of genetically modified (GM) versus wild-type (WT) poplar was conducted on trees at different growth stages (i.e., the rhizospheres of 1.5-, 2.5-, and 3-year-old poplars) that were cultivated on contaminated soils together with nonplanted control soil. Based on the results of DNA pyrosequencing, poplar type and growth stages were associated with directional changes in the structure of the microbial community. The rate of change was faster in GM poplars than in WT poplars, but the microbial communities were identical in the 3-year-old poplars. This phenomenon may arise because of a higher rate and greater extent of metal accumulation in GM poplars than in naturally occurring plants, which resulted in greater changes in soil environments and hence the microbial habitat.

Original languageEnglish
Pages (from-to)7611-7619
Number of pages9
JournalApplied and Environmental Microbiology
Volume77
Issue number21
DOIs
Publication statusPublished - 2011 Nov 1
Externally publishedYes

Fingerprint

Environmental Biodegradation
mine waste
phytoremediation
tailings
microbial communities
microbial community
Soil
Rhizosphere
rhizosphere
metals
developmental stages
soil
Soil Pollutants
Metals
Genetically Modified Organisms
edaphic factors
genetically modified organism
polluted soils
transgenic plant
Environmental Pollution

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Food Science
  • Biotechnology
  • Ecology

Cite this

Effect of genetically modified poplars on soil microbial communities during the phytoremediation of waste mine tailings. / Hur, Moonsuk; Kim, Yongho; Song, Hae Ryong; Kim, Jong Min; Choi, Young Im; Yi, Hana.

In: Applied and Environmental Microbiology, Vol. 77, No. 21, 01.11.2011, p. 7611-7619.

Research output: Contribution to journalArticle

Hur, Moonsuk ; Kim, Yongho ; Song, Hae Ryong ; Kim, Jong Min ; Choi, Young Im ; Yi, Hana. / Effect of genetically modified poplars on soil microbial communities during the phytoremediation of waste mine tailings. In: Applied and Environmental Microbiology. 2011 ; Vol. 77, No. 21. pp. 7611-7619.
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