Biodegradation of atrazine and related s-triazine compounds: from enzymes to field studies

@article{Wackett2001BiodegradationOA,
  title={Biodegradation of atrazine and related s-triazine compounds: from enzymes to field studies},
  author={Lawrence P. Wackett and Michael Jay Sadowsky and Betsy Martinez and Nir Shapir},
  journal={Applied Microbiology and Biotechnology},
  year={2001},
  volume={58},
  pages={39-45}
}
Abstract.s-Triazine ring compounds are common industrial chemicals: pesticides, resin intermediates, dyes, and explosives. The fate of these compounds in the environment is directly correlated with the ability of microbes to metabolize them. Microbes metabolize melamine and the triazine herbicides such as atrazine via enzyme-catalyzed hydrolysis reactions. Hydrolytic removal of substituents on the s-triazine ring is catalyzed by enzymes from the amidohydrolase superfamily and yields cyanuric… 

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References

SHOWING 1-10 OF 52 REFERENCES
Substrate Specificity of Atrazine Chlorohydrolase and Atrazine-Catabolizing Bacteria
ABSTRACT Bacterial atrazine catabolism is initiated by the enzyme atrazine chlorohydrolase (AtzA) in Pseudomonas sp. strain ADP. Other triazine herbicides are metabolized by bacteria, but the
Gene Sequence and Properties of ans-Triazine Ring-Cleavage Enzyme from Pseudomonassp. Strain NRRLB-12227
  • J. Karns
  • Biology
    Applied and Environmental Microbiology
  • 1999
TLDR
Neither the nucleotide sequence of trzD nor the amino acid sequence of the gene product exhibited a significant level of similarity to any known gene or protein, although barbituric acid was found to be a strong competitive inhibitor.
Characterization of S-Triazine Herbicide Metabolism by a Nocardioides sp. Isolated from Agricultural Soils
ABSTRACT Atrazine, a herbicide widely used in corn production, is a frequently detected groundwater contaminant. Nine gram-positive bacterial strains able to use this herbicide as a sole source of
Degradation of atrazine and related s‐triazines
TLDR
The literature related to degradation of atrazine and related s‐triazines is reviewed, with particular emphasis on those substances formed along the degradative pathways and to the biodegradation aspects of mineralization.
Purification and Characterization of an Inducible s-Triazine Hydrolase from Rhodococcus corallinus NRRL B-15444R
  • W. Mulbry
  • Chemistry
    Applied and environmental microbiology
  • 1994
TLDR
Induction experiments demonstrate that triazine hydrolytic activity is inducible and that this activity rises approximately 20-fold during induction.
Isolation and Characterization of a Pseudomonas sp. That Mineralizes the s-Triazine Herbicide Atrazine
A bacterium that was capable of metabolizing atrazine at very high concentrations (>1,000 ppm) was isolated from a herbicide spill site. The organism was differentiated by observing clearing zones on
Genes encoding s-triazine degradation are plasmid-borne in Klebsiella pneumoniae strain 99
TLDR
Conjugal transfer of this plasmid from wild-type strain 99 into a type strain of Klebsiella planticola (ATCC 33531) resulted in exconjugants able to utilize ammelide or cyanuric acid as nitrogen sources.
Ring cleavage and degradative pathway of cyanuric acid in bacteria.
TLDR
Data indicate that the same pathway occurred in another pseudomonad and a strain of Klebsiella pneumoniae, and each substrate was entirely metabolized concomitantly with growth.
Degradation and mineralization of atrazine by a soil bacterial isolate.
TLDR
This is the first report of a pure bacterial isolate with the ability to cleave the s-triazine ring structure of atrazine, and it was concluded that this bacterium was capable of dealkylation, dechlorination, and deamination in addition to ring cleavage.
Biodegradation of atrazine under denitrifying conditions
TLDR
Results of this study suggest that the use of M91-3 in a fixed-film bioreactor may have applications in the anaerobic removal of atrazine and nitrate from aqueous media.
...
1
2
3
4
5
...