Dissipation gradients of phenanthrene and pyrene in the Rice rhizosphere

Y. Gao, S. C. Wu, X. Z. Yu, Ming Hung WONG

Research output: Contribution to journalJournal articlepeer-review

28 Citations (Scopus)


An experiment was conducted to reveal the effects of rice cultivation as well as polycyclic aromatic carbohydrates (PAHs) degrading bacterium (Acinetobacter sp.) on the dissipation gradients of two PAHs (PHE and PYR) in the rhizosphere. The results showed that the presence of rice root and bacteria significantly accelerated the dissipation rate of PHE and PYR. The root exudates contributed to the formation of dissipation gradients of PHE and PYR along the vertical direction of roots, with a higher dissipation rate in the rhizosphere and near rhizosphere zone than the soil far away the rhizosphere.

Original languageEnglish
Pages (from-to)2596-2603
Number of pages8
JournalEnvironmental Pollution
Issue number8
Publication statusPublished - Aug 2010

Scopus Subject Areas

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis

User-Defined Keywords

  • Bacteria
  • PAHs dissipation gradients
  • Rhizosphere
  • Rice


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