Investigating the relationship between synergistic effects and diversity of four widely used agricultural pesticides by using bacterial species in liquid culture medium

Interactive effects of mixtures of pesticides on bacteria are rarely investigated. The aim of this study was to investigate the cumulative, synergistic, and antagonistic effects of four widely used agricultural pesticides including deltamethrin, diazinon, chlorpyrifos, and 2,4-dichlorophenoxyacetic...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2020-03, Vol.192 (3), p.176, Article 176
Main Authors: Zare, Mohammad Reza, Dehghani, Mansooreh, Fakhraei Fard, Atefeh
Format: Article
Language:English
Subjects:
2,4-D
Additives
Agriculture
Agrochemicals
Atmospheric Protection/Air Quality Control/Air Pollution
Bacteria
Bacteria - drug effects
Binary mixtures
Chlorpyrifos
Culture media
Deltamethrin
Diazinon
Dichlorophenoxyacetic acid
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Environmental Monitoring
Environmental science
Insecticides
Liquid culture
Monitoring/Environmental Analysis
Pesticides
Pesticides - toxicity
Species diversity
Spectrophotometers
Synergistic effect
Wavelength
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Summary:Interactive effects of mixtures of pesticides on bacteria are rarely investigated. The aim of this study was to investigate the cumulative, synergistic, and antagonistic effects of four widely used agricultural pesticides including deltamethrin, diazinon, chlorpyrifos, and 2,4-dichlorophenoxyacetic acid (2,4-D) on Pseudomonas , Aeromonas , and Bacillus bacteria. The reduction of alamar blue, as an indicator of bacterial activity, was measured using a spectrophotometer at 600-nm wavelength. Data were analyzed using SPSS 24.0 software. The binary mixtures of pesticides had mainly antagonistic and additive effects, but quadruple mixtures of pesticides had synergistic effects on all of the three bacterial species. In the mixtures of pesticides, increasing the number of compounds leads to more synergistic effects.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-020-8125-5