29 research outputs found
Assessment of the effects of phenanthrene and its nitrogen heterocyclic analogues on microbial activity in soil
Get PDF
A Comprehensive Analysis on Spread and Distribution Characteristic of Antibiotic Resistance Genes in Livestock Farms of Southeastern China
No full textEffect of Manure Application on Abundance of Antibiotic Resistance Genes and Their Attenuation Rates in Soil: Field-Scale Mass Balance Approach
No full textHabitat determines the relationships among bacteria, resistance genes and mobile genetic elements in the soil–plant system
No full textEffect from low-level exposure of oxytetracycline on abundance of tetracycline resistance genes in arable soils
No full textPrevalence and Abundance of Florfenicol and Linezolid Resistance Genes in Soils Adjacent to Swine Feedlots
No full textHydrogeochemical and microbial characteristics in aquifers contaminated with leachate from animal carcass disposal sites
No full textMetabolically Active Prokaryotes and Actively Transcribed Antibiotic Resistance Genes in Sewer Systems: Implications for Public Health and Microbially Induced Corrosion
No full textAntibiotic resistance gene dissipation in soil microcosms amended with antibiotics and swine manure
No full textThe use of antibiotics in animal agriculture has exacerbated the presence of both antibiotic resistance genes (ARGs) and residual antibiotics excreted in animal manure. Field application of this manure is a common practice as its nutrient rich material can benefit crop growth. However, this practice can also introduce antibiotics and ARGs into non-agricultural settings. The integration of prairie buffer strips within and at the edge of crop fields is a potential management solution to reduce concentrations of ARGs commonly transported via water runoff and infiltration. To investigate the fate of ARGs in directly manured crop field soils and surrounding, impacted prairie strip soils, an incubation experiment was conducted. Row crop and prairie strip soils sampled from three sites received either an antibiotic spike and swine manure addition or a control water addition. The concentrations of select ARGs were then monitored over a 72-day period. Although soil-vegetation type and site location were not observed to influence ARG dissipation, the select genes did display different half-lives from one another. For example, tetM demonstrated the fastest dissipation of the genes quantified (average half-life = 5.18 days). Conversely, sul1 did not conform to the first-order linear regression kinetics used to describe the other investigated genes and was highly abundant in control prairie strip soils. The quantified half-lives of these select ARGs are comparable to previous studies and can inform monitoring and mitigative efforts aimed at reducing the spread of ARGs in the environment.This is the peer-reviewed version of the following article: Alt, Laura M., Alyssa N. Iverson, Michelle L. Soupir, Thomas B. Moorman, and Adina Howe. "Antibiotic resistance gene dissipation in soil microcosms amended with antibiotics and swine manure." Journal of Environmental Quality (2021), which has been published in final form at DOI: 10.1002/jeq2.20240.</p
