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Article

The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time

1
Área de Edafoloxía e Química Agrícola, Facultade de Ciencias, Universidade de Vigo, 32004 Ourense, Galiza, Spain
2
CITACA-Clúster de Investigación e Transferencia Agroalimentaria do Campus Auga, Universidade de Vigo, 32004 Ourense, Galiza, Spain
3
Departamento de Edafoloxía e Química Agrícola, Escola Politécnica Superior de Enxeñaría, Universidade de Santiago de Compostela, 15705 Lugo, Galicia, Spain
4
Departamento de Bioquímica del Suelo, Instituto de Investigaciones Agrobiologicas de Galicia (IIAG/CSIC), 15705 Santiago de Compostela, Galicia, Spain
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(23), 8773; https://doi.org/10.3390/ijerph17238773
Received: 20 October 2020 / Revised: 15 November 2020 / Accepted: 24 November 2020 / Published: 26 November 2020
(This article belongs to the Special Issue Soil Pollution and Risk Assessment)
The toxicity exerted by the antibiotic sulfadiazine on the growth of soil bacterial communities was studied in two agricultural soils for a period of 100 days. In the short-term (2 days of incubation), the effect of sulfadiazine on bacterial growth was low (no inhibition or inhibition <32% for a dose of 2000 mg·kg−1). However, sulfadiazine toxicity increased with time, achieving values of 40% inhibition, affecting bacterial growth in both soils after 100 days of incubation. These results, which were here observed for the first time for any antibiotic in soil samples, suggest that long-term experiments would be required for performing an adequate antibiotics risk assessment, as short-term experiments may underestimate toxicity effects. View Full-Text
Keywords: leucine incorporation; risk assessment; sulfonamide; veterinary; microbial community leucine incorporation; risk assessment; sulfonamide; veterinary; microbial community
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MDPI and ACS Style

Santás-Miguel, V.; Rodríguez-González, L.; Núñez-Delgado, A.; Díaz-Raviña, M.; Arias-Estévez, M.; Fernández-Calviño, D. The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time. Int. J. Environ. Res. Public Health 2020, 17, 8773. https://doi.org/10.3390/ijerph17238773

AMA Style

Santás-Miguel V, Rodríguez-González L, Núñez-Delgado A, Díaz-Raviña M, Arias-Estévez M, Fernández-Calviño D. The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time. International Journal of Environmental Research and Public Health. 2020; 17(23):8773. https://doi.org/10.3390/ijerph17238773

Chicago/Turabian Style

Santás-Miguel, Vanesa, Laura Rodríguez-González, Avelino Núñez-Delgado, Montserrat Díaz-Raviña, Manuel Arias-Estévez, and David Fernández-Calviño. 2020. "The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time" International Journal of Environmental Research and Public Health 17, no. 23: 8773. https://doi.org/10.3390/ijerph17238773

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