Mineralization of 2,4-dichlorophenol by ectomycorrhizal fungi in axenic culture and in symbiosis with pine

Andrew A. Meharg*, John W G Cairney, Nichola Maguire

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Experiments were conducted to determine if two ectomycorrhizal fungi (Paxillus involutus and Suillus variegatus) could degrade 2,4-dichlorophenol both in axenic liquid culture and during symbiosis with a host tree species Pinus sylvestris. Both fungi readily degraded 2,4- dichlorophenol in batch culture with similar rates of mineralization on a biomass basis. Up to 17% of the 2,4-dichlorophenol was mineralized over a 17 day period. Growth of the fungi in symbiosis with P. sylvestris stimulated greater mineralization than when fungi were grown in absence of the host. S. variegatus was more efficient than P. involutus (in the presence of P. sylveslris) at mineralizing 2,4- dichlorophenol. Mineralization in vermiculite culture was greatly reduced compared to liquid culture. Only 3% of the 2,4-dichlorophenol was mineralized after 13 days in vermiculite culture for the most efficient degrading treatment.

Original languageEnglish
Pages (from-to)2495-2504
Number of pages10
JournalChemosphere
Volume34
Issue number12
DOIs
Publication statusPublished - Jun 1997

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)

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