Wild soil fungi able to degrade the herbicide Isoproturon
DOI:
https://doi.org/10.33885/sf.2009.3.1040Keywords:
bioremediation, filamentous species, biodegradation potential, hydroxylated, metabolitesAbstract
The herbicide isoproturon (IPU) is a strong contaminant due to it water solubility
and low microbial degradation. Environmental concerns arised from the worldwide use of
this herbicide in conventional agriculture, urban areas and algicide in antifouling paints.
Several fungi have shown the ability to degrade IPU and its derivatives; however,
hydroxylated metabolites were frequently detected in agricultural areas. The aims of this
study were to isolate representatives fungi from polluted soils, to study their IPU-degradation
potential and to identify the transformation products. Aspergillus ochraceus, Fusarium
flocciferum, Talaromyces helicus, Acremonium strictum, Mucor hiemalis, Paecilomyces
lilacinus and Penicillium frequentans uptook the herbicide and produced significant amounts
of diverse derivatives. The fungi produced 1-OH-IPU and 2-OH-IPU, being the source of the
hydroxylated IPU-derivatives detected in environment. Therefore, this study demonstrated
that selected fungi could be used for the polluted soils bioremediation
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