Determination of biomarkers for polycyclic aromatic hydrocarbons (PAHs) toxicity to earthworm (Eisenia fetida)

Tae Hoon Nam, Hwang Ju Jeon, Hyung ho Mo, Ki Jong Cho, Yong Sik Ok, Sung Eun Lee

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Polycyclic aromatic hydrocarbon (PAH) compounds are persistent, carcinogenic, and mutagenic. When PAHs enter agricultural soils through sewage sludge, they pose an environmental risk to soil organisms, including earthworms. Therefore, we aimed to determine the toxic effects of PAHs on earthworms. Five PAHs were used: fluorene, anthracene, phenanthrene, fluoranthene, and pyrene. Only fluorene and phenanthrene exhibited toxicity (LC50 values 394.09 and 114.02 g L−1, respectively) against the earthworm Eisenia fetida. None of the other PAHs tested in this study enhanced the mortality of adult earthworm until the concentrations reached to 1000 g L−1. After exposure to PAHs, acetylcholinesterase (AChE) activity in E. fetida decreased in a concentration-dependent manner, and phenanthrene exhibited the strongest inhibitory effect on AChE, followed by fluorene. Activity of a representative detoxifying enzyme, carboxylesterase, was dramatically reduced in E. fetida exposed to all tested PAHs in comparison with that observed in the control test. The remaining glutathione S-transferase activity significantly decreased in E. fetida after exposure to PAHs. To profile small proteins

Original languageEnglish
Pages (from-to)943-951
Number of pages9
JournalEnvironmental Geochemistry and Health
Volume37
Issue number6
DOIs
Publication statusPublished - 2015 Apr 29

Fingerprint

Polycyclic Aromatic Hydrocarbons
Biomarkers
Polycyclic aromatic hydrocarbons
earthworm
Toxicity
biomarker
PAH
toxicity
phenanthrene
Acetylcholinesterase
Soils
Carboxylesterase
fluoranthene
Anthracene
Poisons
Pyrene
Sewage sludge
Glutathione Transferase
environmental risk
pyrene

Keywords

  • Biomarker
  • Polycyclic aromatic hydrocarbons
  • SELDI-TOF MS

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology
  • Geochemistry and Petrology

Cite this

Determination of biomarkers for polycyclic aromatic hydrocarbons (PAHs) toxicity to earthworm (Eisenia fetida). / Nam, Tae Hoon; Jeon, Hwang Ju; Mo, Hyung ho; Cho, Ki Jong; Ok, Yong Sik; Lee, Sung Eun.

In: Environmental Geochemistry and Health, Vol. 37, No. 6, 29.04.2015, p. 943-951.

Research output: Contribution to journalArticle

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