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United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
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Full-Text Articles in Life Sciences
Do Long-Term Conservation Pasture Management Practices Influence Microbial Diversity And Antimicrobial Resistant Genes In Runoff?, Yichao Yang, Amanda J. Ashworth, Lisa M. Durso, Mary Savin, Jennifer M. Debruyn, Kimberly Cook, Philip A. Moore Jr, Philip R. Owens
Do Long-Term Conservation Pasture Management Practices Influence Microbial Diversity And Antimicrobial Resistant Genes In Runoff?, Yichao Yang, Amanda J. Ashworth, Lisa M. Durso, Mary Savin, Jennifer M. Debruyn, Kimberly Cook, Philip A. Moore Jr, Philip R. Owens
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Runoff from land-applied manure and poultry litter is one mechanism by which manure-borne bacteria are transported over large distances in the environment. There is a global concern that antimicrobial resistant (AMR) genes may be transmitted through the food chain from animal manures to soil to surface water. However, details are lacking on the ecology of AMR genes in water runoff as well as how conservation management practices may affect the runoff microbiome or minimize the movement of AMR genes. The aim of this study was to identify microbial community structure and diversity in water runoff following 14-years of poultry litter …
Soil Health Management Enhances Microbial Nitrogen Cycling Capacity And Activity, Jianlin Hu, Virginia L. Jin, Julie Y.M. Konkel, Sean M. Schaeffer, Liesel G. Schneider, Jennifer M. Debruyn
Soil Health Management Enhances Microbial Nitrogen Cycling Capacity And Activity, Jianlin Hu, Virginia L. Jin, Julie Y.M. Konkel, Sean M. Schaeffer, Liesel G. Schneider, Jennifer M. Debruyn
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Soil microbial transformations of nitrogen (N) can be affected by soil health management practices. Here, we report in situ seasonal dynamics of the population size (gene copy abundances) and functional activity (transcript copy abundances) of five bacterial genes involved in soil N cycling (ammonia-oxidizing bacteria [AOB] amoA, nifH, nirK, nirS, and nosZ) in a long-term continuous cotton production system under different management practices (cover crops, tillage, and inorganic N fertilization). Hairy vetch (Vicia villosa Roth), a leguminous cover crop, most effectively promoted the expression of N cycle genes, which persisted after cover crop termination throughout the growing season. Moreover, we …