Effects of increasing concentrations of fungicide QuadrisR on bacterial functional profiling in loamy sand soil
| Autor: | Michaella Aleksova, Stela Georgieva, Silvena Boteva, Anelia Kenarova, Galina Radeva, Christo Chanev |
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| Rok vydání: | 2021 |
| Předmět: |
0303 health sciences
030306 microbiology Chemistry Soil acidification General Medicine complex mixtures Biochemistry Microbiology Mesocosm Fungicide 03 medical and health sciences chemistry.chemical_compound Microbial ecology Agronomy Azoxystrobin Loam Soil water Genetics Ecotoxicity Molecular Biology 030304 developmental biology |
| Zdroj: | Archives of Microbiology. 203:4385-4396 |
| ISSN: | 1432-072X 0302-8933 |
| Popis: | A mesocosm experiment was conducted to assess the side effects of the fungicide QuadrisR on soil bacterial functioning. QuadrisR was applied to a loamy sand soil at increasing concentrations (0.0–35.0 mg kg−1 dry soil) calculated according to its active ingredient azoxystrobin (Az). Soil sampling was carried out from the 1st to the 120th day of soil incubation to determine the changes occurred in bacterial catabolism using the technique of community-level physiological profiling (CLPP) via Biolog EcoPlates™. It was found that the field recommended fungicide concentration (2.90 mg kg−1 dry soil) altered mostly the low-available Biolog carbon sources ( 1.00 OD) utilizable ones. Pearson correlation analysis revealed that the main environmental factors correlated with the utilization rates of Biolog carbon sources (CSs) were soil nutrients and pH. No linear relationships were found between Az soil residues and the use of CSs. We concluded that QuadrisR affects bacterial catabolic profiles in loamy sand soils through soil acidification and altering soil nutrient pool. The study also revealed that CLPP and EcoPlate™ are useful practical tools for testing the fungicide ecotoxicity. |
| Databáze: | OpenAIRE |
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