Diversity of fungi in creosote-treated crosstie wastes and their resistance to polycyclic aromatic hydrocarbons

Min Ji Kim, Hwanhwi Lee, Yong Seok Choi, Gyu Hyeok Kim, Na Yoon Huh, Sangjoon Lee, Young Woon Lim, Sung Suk Lee, Jae Jin Kim

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

This study was conducted to generate information regarding the diversity of fungi inhabiting creosote-treated wood in a storage yard for crosstie wastes in Gwangmyeong, Korea. Additionally, the resistance to polycyclic aromatic hydrocarbons (PAHs) of indigenous fungi that mainly occupy creosote-treated wood was evaluated. We isolated fungi from the surface and inner area of crosstie wastes and identified them using a combination of traditional methods and molecular techniques. Overall, 179 isolates including 47 different species were isolated from 240 sampling sites. The identified fungal species included 23 ascomycetes, 19 basidiomycetes, and 5 zygomycetes. Three species, Alternaria alternata, Irpex lacteus, and Rhizomucor variabilis, were the most frequently isolated ascomycetes, basidiomycetes, and zygomycetes, respectively. The results of this study showed that there was a large difference in the fungal diversity between the surface and the inner area. Additionally, zygomycetes and ascomycetes were found to have a greater tolerance to PAHs than basidiomycetes. However, two basidiomycetes, Heterobasidion annosum and Schizophyllum commune, showed very high resistance to PAHs, even in response to the highest concentration (1,000 ppm), which indicates that these species may play a role in the degradation of PAHs.

Original languageEnglish
Pages (from-to)377-387
Number of pages11
JournalAntonie van Leeuwenhoek, International Journal of General and Molecular Microbiology
Volume97
Issue number4
DOIs
Publication statusPublished - 2010 May

Keywords

  • Creosote-treated wood
  • Crosstie waste
  • Fungal diversity
  • Polycyclic aromatic hydrocarbons
  • White-rot fungi

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology

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