Biodegradation of pesticides using fungi species found in the aquatic environment

B. R. Oliveira, A. Penetra, V. V. Cardoso, M. J. Benoliel, Maria Teresa Barreto Goulão Crespo, R. A. Samson, V. J. Pereira

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Relatively limited attention has been given to the presence of fungi in the aquatic environment compared to their occurrence in other matrices. Taking advantage and recognizing the biodegradable capabilities of fungi is important, since these organisms may produce many potent enzymes capable of degrading toxic pollutants. Therefore, the aim of this study was to evaluate the potential ability of some species of filamentous fungi that occur in the aquatic environment to degrade pesticides in untreated surface water. Several laboratory-scale experiments were performed using the natural microbial population present in the aquatic environment as well as spiked fungi isolates that were found to occur in different water matrices, to test the ability of fungi to degrade several pesticides of current concern (atrazine, diuron, isoproturon and chlorfenvinphos). The results obtained in this study showed that, when spiked in sterile natural water, fungi were able to degrade chlorfenvinphos to levels below detection and unable to degrade atrazine, diuron and isoproturon. Penicillium citrinum, Aspergillus fumigatus, Aspergillus terreus and Trichoderma harzianum were found to be able to resist and degrade chlorfenvinphos. These fungi are therefore expected to play an important role in the degradation of this and other pollutants present in the aquatic environment.

Original languageEnglish
Pages (from-to)11781-11791
Number of pages11
JournalEnvironmental Science and Pollution Research
Volume22
Issue number15
DOIs
Publication statusPublished - 25 Aug 2015

Keywords

  • Biodegradation
  • Fungi
  • Pesticides
  • Surface water

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