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Articles 1 - 11 of 11
Full-Text Articles in Other Microbiology
Characterization Of Genes And Pathways Controlling Biofilm Formation In Saccharomyces Cerevisiae, Neha Sarode
Characterization Of Genes And Pathways Controlling Biofilm Formation In Saccharomyces Cerevisiae, Neha Sarode
Doctoral Dissertations
Biofilms are a mode of growth where aggregated cells adhere to a foreign surface and grow as a complex community. Biofilms have found wide utility in commercial industries, however infections caused by biofilms in clinical settings are a major cause of concern. Understanding molecular details of biofilm formation could help in exploitation or elimination efforts.
We utilize Saccharomyces cerevisiae as a model system to study biofilm formation. S. cerevisiae strain belonging to genetic background Σ [sigma] 1278b is capable of forming biofilms, on low density (0.3%) agar media. When grown at 25°[degree] C for 5 days, it develops into an …
Unmasking Candidiasis: A Mechanistic Model For Innate Immune-Fungal Cell Wall Dynamics, Erica Hidu
Unmasking Candidiasis: A Mechanistic Model For Innate Immune-Fungal Cell Wall Dynamics, Erica Hidu
Honors College
Candida albicans is an opportunistic fungal pathogen that can cause a potentially lethal systemic infection in immunocompromised patients. Increasing drug resistance of Candida species to anti-fungal treatments makes the study of this pathogen ever more important. Study of the C. albicans cell wall provides insight into its importance in pathogenesis, immune recognition, and anti-fungal action. It has been shown that β- glucan, a masked component of the fungal cell wall and ligand for the immune receptor Dectin-1, becomes available for immune recognition in the mouse model of systemic candidiasis. To develop a mechanistic model to explain this unmasking, we investigated …
The Role Of The Arched Helicases In Exosome-Mediated Function, A. Alejandra Klauer
The Role Of The Arched Helicases In Exosome-Mediated Function, A. Alejandra Klauer
Dissertations & Theses (Open Access)
RNA processing and degradation are two important functions that control gene expression and promote RNA fidelity in the cell. A major ribonuclease complex, called the exosome, is involved in both of these processes. The exosome is composed of ten essential proteins with only one catalytically active subunit, called Rrp44. While the same ten essential subunits make up both the nuclear and cytoplasmic exosome, there are nuclear and cytoplasmic exosome cofactors that promote specific exosome functions in each of the cell compartments. To date, it is unclear how the exosome distinguishes between RNA substrates. We hypothesize that compartment specific cofactors may …
Sequesteration Of Lead, Cadmium And Arsenic By Lactobacillus Species And Detoxication Potential, Marc A. Monachese
Sequesteration Of Lead, Cadmium And Arsenic By Lactobacillus Species And Detoxication Potential, Marc A. Monachese
Electronic Thesis and Dissertation Repository
Toxic metals are a class of elements with no biological role but with extreme toxicity. On average only 50% of ingested toxins are absorbed into the human body, for reasons still unknown. It was hypothesized that the gut microbiota plays a role in reducing toxin absorbance. The aim of this study was to determine if constituents of the gut, namely Lactobacillus species, are able to sequester arsenic, lead and cadmium from the environment. Lactobacilli were incubated with the metals, both in vitro and with a Caco-2 cell line. Analysis of metal concentrations was conducted to determine if these were reduced …
Analyzing Environmental Microbes For Genomic Regions Promoting Ionic Liquid Tolerance In E. Coli, Ann Nguyen, Alison Richins, Thomas Rüegg, Steven Singer, Michael Thelen
Analyzing Environmental Microbes For Genomic Regions Promoting Ionic Liquid Tolerance In E. Coli, Ann Nguyen, Alison Richins, Thomas Rüegg, Steven Singer, Michael Thelen
STAR Program Research Presentations
Ionic liquids (ILs) are promising as solvents to increase the efficiency of biofuel production; however, ILs are toxic to microbes used in the fermentation of liquid fuels. To engineer IL resistant biofuel hosts, environmental bacteria were screened for tolerance, and these were used to create gene libraries to test in E. coli. Future characterization of these libraries using molecular techniques will be used to identify genes that contribute IL-tolerance to transformed microbes.
Study Of Cellular Responses Under Chemically Induced Hypoxia, George Coricor
Study Of Cellular Responses Under Chemically Induced Hypoxia, George Coricor
Theses
No abstract provided.
Identification Of Conserved Splicing Motifs In Mutually Exclusive Exons Of 15 Insect Species, Patricia Buendia, John Tyree, Robert Laredo, Shu-Ning Hsu
Identification Of Conserved Splicing Motifs In Mutually Exclusive Exons Of 15 Insect Species, Patricia Buendia, John Tyree, Robert Laredo, Shu-Ning Hsu
School of Computing and Information Sciences
Background: During alternative splicing, the inclusion of an exon in the final mRNA molecule is determined by nuclear proteins that bind cis-regulatory sequences in a target pre-mRNA molecule. A recent study suggested that the regulatory codes of individual RNA-binding proteins may be nearly immutable between very diverse species such as mammals and insects. The model system Drosophila melanogaster therefore presents an excellent opportunity for the study of alternative splicing due to the availability of quality EST annotations in FlyBase.
Methods: In this paper, we describe an in silico analysis pipeline to extract putative exonic splicing regulatory sequences from a multiple …
Molecular Diagnostics: The Changing Culture Of Medical Microbiology, Susan Bullman, Brigid Lucey, Roy D. Sleator
Molecular Diagnostics: The Changing Culture Of Medical Microbiology, Susan Bullman, Brigid Lucey, Roy D. Sleator
Department of Biological Sciences Publications
Diagnostic molecular biology is arguably the fastest growing area in current laboratory-based medicine. Growth of the so called ‘omics’ technologies has, over the last decade, led to a gradual migration away from the ‘one test, one pathogen’ paradigm, toward multiplex approaches to infectious disease diagnosis, which have led to significant improvements in clinical diagnostics and ultimately improved patient care.
Preparation And Rapid Analysis Of Antibacterial Silver, Copper And Zinc Doped Sol–Gel Surfaces, Swarna Jaiswal, Brendan Duffy, Patrick Mchale
Preparation And Rapid Analysis Of Antibacterial Silver, Copper And Zinc Doped Sol–Gel Surfaces, Swarna Jaiswal, Brendan Duffy, Patrick Mchale
Articles
The colonisation of clinical and industrial surfaces with microorganisms, including antibiotic-resistant strains, has promoted increased research into the development of effective antibacterial and antifouling coatings. This study describes the preparation of metal nitrate (Ag, Cu, Zn) doped methyltriethoxysilane (MTEOS) coatings and the rapid assessment of their antibacterial activity using polyproylene microtitre plates. Microtitre plate wells were coated with different volumes of liquid sol–gel and cured under various conditions. Curing parameters were analysed by thermogravimetric analysis (TGA) and visual examination. The optimum curing conditions were determined to be 50–70 °C using a volume of 200 μl. The coated wells were challenged …
The Effects Of Slow Release Urea On Nitrogen Metabolism In Cattle, Vaughn B. Holder
The Effects Of Slow Release Urea On Nitrogen Metabolism In Cattle, Vaughn B. Holder
Theses and Dissertations--Animal and Food Sciences
The objective of this research was to investigate the effects of slow release urea on N metabolism in cattle. The ruminal behavior of Optigen®II and the effect of basal diet on the in situ degradability of urea and Optigen®II were evaluated. The effect of slow release urea and its interaction with degradable intake protein (DIP) level in the diet on N retention and excretion was evaluated utilizing 8 Holstein steers in a 4 x 4 Latin square experiment. In addition, the effect of slow release urea and DIP level on ruminal and systemic urea kinetics was evaluated using stable isotope …
Toward The History Of Study Of Symbiogenesis: On The English Translation Of B. M. Kozo-Polyansky’S A New Principle Of Biology (1924), Victor Fet
Biological Sciences Faculty Research
We reproduce the text by Victor Fet, which was read on 6 October 2011 at the Moscow Society of Naturalists during the presentation of new book translation (B.M. Kozo- Polyansky. Symbiogenesis: A New Principle of Evolution / transl. by Victor Fet; ed. by Victor Fet & Lynn Margulis. Cambridge, Mass.: Harvard University Press, 2010. 138 p.) This half- forgotten book by Boris M. Kozo-Polyansky was known only by name to Western biologists. Victor Fet gives a brief history of this new translation, enthusiastically initiated and supported by Lynn Margulis (1938–2011), a famous naturalist who was always eager to gave credit …