Tetracycline and Sulfonamide Antibiotic Resistance Genes in Soils From Nebraska Organic Farming Operations

Frontiers in Microbiology
Marlynn CadenaCharles Wortmann

Abstract

There is widespread agreement that agricultural antibiotic resistance should be reduced, however, it is unclear from the available literature what an appropriate target for reduction would be. Organic farms provide a unique opportunity to disentangle questions of agricultural antibiotic drug use from questions of antibiotic resistance in the soil. In this study, soil was collected from 12 certified organic farms in Nebraska, evaluated for the presence of tetracycline and sulfonamide resistance genes (n = 15 targets), and correlated to soil physical, chemical, and biological parameters. Tetracycline and sulfonamide antibiotic resistance genes (ARGs) were found in soils from all 12 farms, and 182 of the 196 soil samples (93%). The most frequently detected gene was tetG (55% of samples), followed by tet(Q) (49%), tet(S) (46%), tet(X) (30%), and tetA(P) (29%). Soil was collected from two depths. No differences in ARGs were observed based on soil depth. Positive correlations were noted between ARG presence and soil electrical conductivity, and concentrations of Ca, Na, and Mehlich-3 phosphorus. Data from this study point to possible relationships between selected soil properties and individual tetracycline resistance genes, includin...Continue Reading

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Citations

May 23, 2019·Environmental Science and Pollution Research International·Zuzana BytesnikovaVojtech Adam
Dec 31, 2018·Applied Microbiology and Biotechnology·Oluwaseyi Samuel Olanrewaju, Olubukola Oluranti Babalola
Jun 24, 2018·International Journal of Environmental Research and Public Health·Lisa M DursoChristopher G Henry
Oct 13, 2021·MSystems·Travis J De WolfeMaría Rebolleda Gómez

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BETA
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SAS

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