Inducible hydroxylation and demethylation of the herbicide isoproturon by Cunninghamella elegans

A screening of 27 fungal strains for degradation of the phenylurea herbicide isoproturon was performed and yielded 15 strains capable of converting the herbicide to polar metabolites. The zygomycete fungus Cunninghamella elegans strain JS/2 isolated from an agricultural soil converted isoproturon to...

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Bibliographic Details
Published in:FEMS microbiology letters 2007-03, Vol.268 (2), p.254-260
Main Authors: Hangler, Martin, Jensen, Bo, Rønhede, Stig, Sørensen, Sebastian R
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Agricultural land
Biodegradation
Biodegradation of pollutants
Biological and medical sciences
Biotechnology
Cunninghamella - metabolism
Cunninghamella elegans
Degradation
Demethylation
Environment and pollution
Fundamental and applied biological sciences. Psychology
Fungi
Herbicides
Hydroxylation
Industrial applications and implications. Economical aspects
Isoproturon
Metabolites
Microbiology
pesticide bioconversion
Phenylurea
Phenylurea Compounds - metabolism
physiological response
Soil Microbiology
Zygomycetes
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Summary:A screening of 27 fungal strains for degradation of the phenylurea herbicide isoproturon was performed and yielded 15 strains capable of converting the herbicide to polar metabolites. The zygomycete fungus Cunninghamella elegans strain JS/2 isolated from an agricultural soil converted isoproturon to several known hydroxylated metabolites. In addition, unknown metabolites were produced in minor amounts. Inducible degradation was indicated by comparing resting cells pregrown with or without isoproturon. This shows that strain JS/2 is capable of partially degrading isoproturon and that one or more of the enzymes involved are inducible upon isoproturon exposure.
ISSN:0378-1097
1574-6968
DOI:10.1111/j.1574-6968.2006.00599.x