Isolation and characterization of mesotrione-degrading Bacillus sp. from soil

Environmental Pollution
Isabelle BatissonJacques Bohatier

Abstract

Dissipation kinetics of mesotrione, a new triketone herbicide, sprayed on soil from Limagne (Puy-de-Dôme, France) showed that the soil microflora were able to biotransform it. Bacteria from this soil were cultured in mineral salt solution supplemented with mesotrione as sole source of carbon for the isolation of mesotrione-degrading bacteria. The bacterial community structure of the enrichment cultures was analyzed by temporal temperature gradient gel electrophoresis (TTGE). The TTGE fingerprints revealed that mesotrione had an impact on bacterial community structure only at its highest concentrations and showed mesotrione-sensitive and mesotrione-adapted strains. Two adapted strains, identified as Bacillus sp. and Arthrobacter sp., were isolated by colony hybridization methods. Biodegradation assays showed that only the Bacillus sp. strain was able to completely and rapidly biotransform mesotrione. Among several metabolites formed, 2-amino-4-methylsulfonylbenzoic acid (AMBA) accumulated in the medium. Although sulcotrione has a chemical structure closely resembling that of mesotrione, the isolates were unable to degrade it.

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Citations

Dec 24, 2013·Environmental Science and Pollution Research International·Hanna BarchanskaBarbara Poloczek
Dec 12, 2012·Bulletin of Environmental Contamination and Toxicology·Yuebing SunQian Wang
Mar 23, 2013·The Science of the Total Environment·Christophe CalvayracJean-Francois Cooper
Sep 16, 2011·Pest Management Science·Christophe CalvayracJean-François Cooper
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Jul 31, 2013·Journal of Hazardous Materials·Milica JovićGoran Roglić
Apr 24, 2015·Environmental Science and Pollution Research International·Sana RomdhaneLise Barthelmebs
Jan 17, 2012·Chemosphere·Marcos PileggiMichael Jay Sadowsky
Oct 16, 2013·Chemosphere·Christopher C HowellGary D Bending
Jun 3, 2016·Frontiers in Microbiology·Sana RomdhaneFabrice Martin-Laurent
Oct 16, 2016·Environmental Science and Pollution Research International·Hanna BarchanskaMagdalena Kurek
Nov 30, 2016·Bulletin of Environmental Contamination and Toxicology·Wangcang SuChuantao Lu
Feb 12, 2017·Environmental Science and Pollution Research International·Kassio Ferreira MendesValdemar Luiz Tornisielo
Nov 26, 2016·Environmental Science and Pollution Research International·Louis CarlesJoan Artigas
Jul 31, 2021·Journal of Hazardous Materials·Florent RossiJoan Artigas

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