Toxicity of herbicides on Escherichia coli growth

Agriculture uses a huge variety and quantity of chemicals. If, on one hand, the goal is to increase productivity, on the other hand these products contaminate aquatic environments. Among these products, herbicides deserve greater attention in relation to contamination of aquatic environments due to...

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Bibliographic Details
Published in:Brazilian journal of biology 2012-02, Vol.72 (1), p.141-146
Main Authors: Botelho, R G, Froes, C M, Santos, J B
Format: Article
Language:English
Subjects:
aquatic ecosystem
bacteriostatic
BIOLOGY
Enzymes
Escherichia coli
Escherichia coli - drug effects
Escherichia coli - growth & development
Herbicides
Herbicides - toxicity
Microbial Sensitivity Tests
Microbiology
paraquat
Paraquat - toxicity
Time Factors
Toxicity
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Summary:Agriculture uses a huge variety and quantity of chemicals. If, on one hand, the goal is to increase productivity, on the other hand these products contaminate aquatic environments. Among these products, herbicides deserve greater attention in relation to contamination of aquatic environments due to their extensive use to weed control. This study was carried out because the effects of these molecules on aquatic microorganisms such as Escherichia coli, is still unclear. Using microdilution plate assays, Escherichia coli were exposed to various commercial formulations of herbicides widely used in Brazil. The herbicide paraquat was the only one able to prevent the growth of Escherichia coli and is characterized as bacteriostatic.
ISSN:1519-6984
1678-4375
1678-4375
1519-6984
DOI:10.1590/S1519-69842012000100016