Abstract：
:Mesotrione is a benzoylcyclohexane-1,3-dione herbicide that inhibits 4-hydroxyphenyl pyruvate dioxygenase in target plants. Although it has been used since 2000, only a limited number of degrading microorganisms have been reported. Mesotrione-degrading bacteria were selected among strains isolated from Brazilian aquatic environments, located near corn fields treated with this herbicide. Pantoea ananatis was found to rapidly and completely degrade mesotrione. Mesotrione did not serve as a sole C, N, or S source for growth of P. ananatis, and mesotrione catabolism required glucose supplementation to minimal media. LC-MS/MS analyses indicated that mesotrione degradation produced intermediates other than 2-amino-4-methylsulfonyl benzoic acid or 4-methylsulfonyl-2-nitrobenzoic acid, two metabolites previously identified in a mesotrione-degrading Bacillus strain. Since P. ananatis rapidly degraded mesotrione, this strain might be useful for bioremediation purposes.
journal_name
Chemospherejournal_title
Chemosphereauthors
Pileggi M,Pileggi SA,Olchanheski LR,da Silva PA,Munoz Gonzalez AM,Koskinen WC,Barber B,Sadowsky MJdoi
10.1016/j.chemosphere.2011.12.041subject
Has Abstractpub_date
2012-03-01 00:00:00pages
1127-32issue
11eissn
0045-6535issn
1879-1298pii
S0045-6535(11)01410-Xjournal_volume
86pub_type
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