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Articles 1 - 4 of 4
Full-Text Articles in Microbiology
Bacterial Mechanisms Of Toxicity And Resistance To Organoarsenicals, Luis D. Garbinski
Bacterial Mechanisms Of Toxicity And Resistance To Organoarsenicals, Luis D. Garbinski
FIU Electronic Theses and Dissertations
Arsenic is a toxic element prevalent in the environment since the origin of life on Earth. Bacteria evolved in an arsenic-rich environment, where they developed ways to both overcome arsenic toxicity and harness it to compete with other organisms. These mechanisms include chemical modifications (e.g. oxidation, methylation), degradation, and efflux. The goal of this dissertation is to better characterize these mechanisms, illuminating the arsenic biogeocycle and allowing us to harness organoarsenical toxicity for novel antibiotics. A goal of my research was to elucidate the antibiotic properties of MAs(III), which is synthesized by bacteria to thrive over other bacteria, by identifying …
Production And Characterization Of Twelve Different Biochars And Evaluating Their Effects On Soil Health And Plant Growth, Shagufta Gaffar
Production And Characterization Of Twelve Different Biochars And Evaluating Their Effects On Soil Health And Plant Growth, Shagufta Gaffar
FIU Electronic Theses and Dissertations
Biochar has been a topic of growing interest in the scientific community. It is a product derived from carbon rich organic materials through the process of pyrolysis. It has received wide attention as a means to improve soil fertility and crop productivity, absorb pollutants in soil, and sequester carbon to mitigate climate change. Recent research on biochar explores its impacts on the environment with particular focus on use as a soil amendment in agriculture. Biochar produced from different biomass and under different production process effects the environmental and agronomic impacts of its application in different ways. This means biochar can …
Carbapenem-Resistant Enterobacteriaceae (Cre): Epidemiology, Duration Of Carriage, And Progression To Infection In A Large Healthcare System In Miami, Fl, Adriana Jimenez
Carbapenem-Resistant Enterobacteriaceae (Cre): Epidemiology, Duration Of Carriage, And Progression To Infection In A Large Healthcare System In Miami, Fl, Adriana Jimenez
FIU Electronic Theses and Dissertations
Carbapenem-resistant Enterobacteriaceae (CRE) are multidrug-resistant organisms (MDRO) considered by the CDC as an urgent public health threat that is spreading globally. Little is known about the epidemiology of CRE in Miami, FL. The purpose of this dissertation was to 1) Evaluate trends in the epidemiology of CRE among patients admitted to the acute care facilities of the largest healthcare system in Miami, FL between 2012 and 2016, 2) Identify factors associated with progressing to infection among patients colonized with carbapenemase-producing Enterobacteriaceae (CPE), and 3) Determine the duration of CPE carriage and factors associated with long-term carriage in our cohort.
A …
Exploration Of The Role Of Microbiome Structure, Metabolism, And Modification In Black Band Disease Etiology, Patricia Waikel
Exploration Of The Role Of Microbiome Structure, Metabolism, And Modification In Black Band Disease Etiology, Patricia Waikel
FIU Electronic Theses and Dissertations
The coral microbiome plays an integral role in coral health. Modification of the microbiome is thought to alter susceptibility to disease. Black Band Disease (BBD), is polymicrobial, mat forming, and affects reef building coral globally. Dominated by the cyanobacterium Roseofilum reptotaenium, it has been noted to increase in virulence with increasing temperatures, making BBD of particular concern in the face of climate change-induced warming seas. The active sulfur cycle of BBD makes dimethylsulfoniopropionate (DMSP), a widely available source of sulfur in the marine environment, of particular interest in the study of BBD. Traditional infection studies require field collection and …