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Biodegradation of the herbicide Diuron in soil by indigenous actinomycetes
E Esposito1, S M Paulillo, G P Manfio
1Biological Chemistry Laboratory, Instituto de Química (IQ), UNICAMP, Campinas, Brazil. elisa@bdt.org.br
Chemosphere
|July 14, 1998
Abstract:
Three actinomycete strains isolated from soil treated with 2,4-D were able to degrade the herbicide Diuron in vitro. Strain CCT 4916 was the most efficient, degrading up to 37% of applied Diuron (100 mg Kg-1 soil) in 7 days, as measured by HPLC and UV/VIS spectroscopy. All strains showed protease and urease activity; intracellular activity of metapyrocatechase and pyrocatechase were not found. Actinomycete strain CCT 4916 produced manganese peroxidase, which could be potentially related to degradation of Diuron.