Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 295 for “"resistance genes"”.
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Antibiotic Resistance Genes in Marquette County Michigan's Wastewater
… resistant bacteria survive and pass antibiotic resistance genes (ARGs) to their progeny cells. Few ARG studies have utilized wastewater influent samples as a method of surveillance in rural communities in the United States. This study investigated ARGs in Michigan’s Upper Peninsula. Two samples …
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Detection of antibiotic resistance genes in gardening composts
… gardening. To evaluate the risk of antibiotic resistance and potential pathogens in composts, two homemade composts, eight commercially available composts, and one immature swine mortality compost were collected and analyzed by high-throughput quantitative polymerase chain reaction (qPCR). One …
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Recovery of Antibiotic Resistance Genes From Agricultural Runoff
… Livestock can act as reservoirs of antibiotic resistance genes (ARGs) and antibiotic resistant bacteria, which can pass resistance on in the livestock's manure. It is important to understand the fate of antibiotic resistance genes and resistant bacteria in the environment after land-application …
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Excretion of Antibiotic Resistance Genes by Dairy Calves
… antibiotics on abundance of selected antibiotic resistance genes (ARG) in the feces. Calves were blocked by breed, gender, and birth order, and assigned to one of three treatments at birth. Treatments were control (containing no antibiotics in the milk replacer), subtherapeutic (neomycin sulfate …
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Identication of Candidate Resistance Genes against Rhynchosporium in Barley
… Research was carried out to identify candidate genes for resistance against rhynchosporium in barley, using genetics and next generation sequencing approaches, with the aim of improving our understanding of the molecular mechanisms behind host resistance to rhynchosporium and developing tightly …
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Mining disease resistance genes in cassava using next-generation sequencing
… in sub-Saharan Africa. Exploitation of natural resistance is generally accepted as the most sustainable means to control the disease. Most of the existing resistance sources have been identified based on evaluation of resistance to infection in the field where escapes is not uncommon. This …
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Domestic greywater systems: a potential reservoir of antibiotic resistance genes transfer
… the levels of clinically relevant antibiotic resistance genes (ARGs) (vanA, ampC and aadA), as well as the intI1 gene, which serves as a marker of horizontal gene transfer. Phenotypic resistance was confirmed using the Kirby-Bauer disc diffusion method. Notably, high levels of resistance to …
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The genetic location and regulation of aminoglycoside resistance genes in acinetobacter
The genetic basis of aminoglycoside resistance in clinical isolates of Acinetobacter was investigated. The aadB genes cloned from two clinical isolates, strain CHA and strain SUN, were sequenced. Analysis of the sequencing data indicated that both genes were contained on gene cassettes, which had …
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Inheritance of powdery mildew resistance genes in 10 winter wheat lines
… number and mode of inheritance of powdery mildew resistance. Two experiments were conducted: 1) each of the lines was crossed to the susceptible cultivar Chancellor, which lacks any known’ gene _ for resistance, and seedlings of the parental lines, F₁, F₂, BC₁ (Chancellor X F₁), and F₃ populations …
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Genetic Characterization and Linkage Mapping of Barley Net Blotch Resistance Genes
… Smedeg., respectively. Several sources of resistance have been previously reported, however, few barley cultivars with high levels of resistance have been developed from these sources. Efficient utilization of available resistance sources is dependent upon successful characterization of …
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Fate of Antibiotic Resistance Genes During Anaerobic Digestion of Wastewater Solids
Bacterial resistance to antibiotics has become a worldwide health problem, resulting in untreatable infections and escalating healthcare costs. Wastewater treatment plants are a critical point of control between anthropogenic sources of pathogens, antibiotic resistant bacteria (ARBs), antibiotic …
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The location, expression and regulation of three antibiotic resistance genes in acinetobacter
Clinical isolates of Acinetobacter often exhibit resistance to many antibiotics, including the aminoglycosides and chloramphenicol. Yet very little is known about this resistance at the molecular level. A strain of Acinetobacter baumannii (strain SAK) was isolated from a tracheal aspirate; it is …
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Effect of wastewater colloids on membrane removal of microconstituent antibiotic resistance genes
Anthropogenically generated antibiotic resistance genes (ARGs) are considered emerging contaminants, as they are associated with a critical human health challenge, are persist independent of a bacterial host, are subject to transfer between bacteria, and are present at amplified levels in …
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Expression profile of multidrug resistance genes and proteins in cancerous and stem cells
… and discover their association with multidrug resistance (MDR) related genes, i.e. multiple drug resistance I (mdrl) gene and anti-apoptotic gene (bcl-2) in human glioma compared to normal brain tissues and cell lines. Glioma and normal astrocyte cell lines have been employed for CD133 …
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Multi-site sampling and risk prioritization of antibiotic resistance genes in sewage environments
The spread of antibiotic resistance across human and environmental habitats is a global public health challenge. In this study, we investigate the public health relevance of antibiotic resistance found in wastewater by combining metagenomic sequencing of wastewater environments with risk …
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Effects of the Lr34 and Lr46 rust-resistance genes on other diseases of wheat
Lr34 and Lr46 are adult plant resistance genes providing durable resistance to biotrophic diseases of wheat like rusts and powdery mildew. In seedlings, these genes increased susceptibility to Septoria tritici blotch (STB), caused by Zymoseptoria tritici, in near-isogenic lines (NILs) of spring …
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Soybean Cyst Nematode, Heterodera Glycines, Resistance Genes in PI 89772 and PI 209332 Soybean
… late 1980's to include 16 races. The number of resistance genes in PI 89772 and PI 209332 confering resistance to H. glycines race 3 is not well defined. Crosses of PI 89772 x 'Lee 68', PI 88788 x PI 89772, and Lee 68 x PI 209332 were made in the field and greenhouse. Several F1 and F2 families …
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A gene-space de Bruijn graph framework for improved genotyping of antimicrobial resistance genes
Identifying antimicrobial resistance (AMR) in bacteria is critical for surveillance and clinical diagnosis. Conventional antimicrobial susceptibility testing involves culturing isolates and measuring growth across antimicrobial concentration gradients. However, this approach is slow and may yield …
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