Cyhalothrin biodegradation in Cunninghamella elegans

Cyhalothrin biodegradation in Cunninghamella elegans

The insecticide λ-cyhalothrin was incubated with planktonic and biofilm cultures of the fungus Cunninghamella elegans . 19 F nuclear magnetic resonance spectroscopy demonstrated that the compound was initially biosorbed to the biomass and more slowly degraded by the fungus. Furthermore, the presence...

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Bibliographic Details
Published in:Environmental science and pollution research international Vol. 26; no. 2; pp. 1414 - 1421
Main Authors: Palmer-Brown, William, de Melo Souza, Paula Letícia, Murphy, Cormac D.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-01-2019
Springer Nature B.V
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Biodegradation
Biofilms
Cell culture
Cunninghamella elegans
Cyhalothrin
Cytochromes P450
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Fluorination
Fungi
Gas chromatography
Insecticides
Magnetic resonance spectroscopy
Mass spectrometry
Mass spectroscopy
Metabolites
NMR
Nuclear magnetic resonance
Pesticides
Planktonic cells
Research Article
Waste Water Technology
Water Management
Water Pollution Control
Pesticide
Fluorine
Cytochrome P450
Microbial model
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Summary:The insecticide λ-cyhalothrin was incubated with planktonic and biofilm cultures of the fungus Cunninghamella elegans . 19 F nuclear magnetic resonance spectroscopy demonstrated that the compound was initially biosorbed to the biomass and more slowly degraded by the fungus. Furthermore, the presence of trifluoromethyl-containing metabolites was observed. Analysis of culture extracts by gas chromatography-mass spectrometry (GC-MS) identified non-fluorinated metabolites that suggested the likely catabolic pathway. The hydroxylated metabolites were probably generated from the action of cytochromes P450 (CYPs), as the presence of CYP inhibitors resulted in the absence of biodegradation. Planktonic cells were measurably faster at degrading the pesticide compared with biofilm.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-018-3689-0