Index Catalog // ScholarsArchive@OSU

Analysis of Mutations Affecting Cooperation in Pseudomonas aeruginosa Populations

Creator:: Robinson, Tanner M.
Abstract:: In a process called quorum sensing (QS), the bacterial pathogen Pseudomonas aeruginosa uses small diffusible signals to coordinate cooperative behaviors via secreted “public goods”. Under QS-dependent growth conditions, social cheaters arise with mutations in lasR, the gene for the primary QS signal receptor. These cheaters do not produce public goods....
Resource Type:: Masters Thesis

Rheological Techniques in Characterization and Aiding in the Modification of Soft Matter

Creator:: Daalkhaijav, Uranbileg
Abstract:: Soft matter encapsulates a large array of materials ranging from electronics, plastics, and cosmetics to the biofluids making up all organisms. One of the most important properties of these materials that dictate their functionality is their rheology, which is the flow and deformation behavior in response to stress. The focus...
Resource Type:: Dissertation

Role of Na+/H+ Membrane Bioenergetics in Virulence Factors of Pseudomonas aeruginosa

Creator:: Hoang, Kelli H.
Abstract:: Pseudomonas aeruginosa is a bacterial pathogen that can cause grave and sometimes chronic infections in patients with weakened immune systems and cystic fibrosis. It is suspected that specialized sodium pumps in the cellular membrane are crucial for the organism’s survival and growth, since many cellular processes rely on the maintenance...
Resource Type:: Honors College Thesis

Properties of Pseudomonas aeruginosa resistant to quaternary ammonium compound

Creator:: Washam, Clinton Jay
Abstract:: Pseudomonas aeruginosa cells were selected for their ability to grow in the presence of 750 ppm alkyldimethylethylbenzyl ammonium chloride (QAC). These cells were found to retain their resistance to the germicide throughout tri-weekly transfers for 7 months in tryptone glucose yeast extract (TGY) broth containing no QAC. Comparisons of the...
Resource Type:: Dissertation

A study of the lipids of Pseudomonas aeruginosa sensitive and resistant to chloramphenicol and quaternary ammonium compound

Creator:: Anderes, Eugene Armin
Abstract:: From a population of cells of Pseudomonas aeruginosa sensitive 33 parts per million (ppm) and 0.1 mg per ml of quaternary ammonium (QAC) and chloramphenicol respectively, pure strains resistant to 750 ppm and 50 mg per ml of these antibiotics were isolated. Lipids from the sensitive and resistant cells grown...
Resource Type:: Dissertation

Quorum-sensing-controlled public goods in Pseudomonas aeruginosa : regulation and application

Creator:: Mellbye, Brett L.
Abstract:: Cell-to-cell communication by chemical signals, termed quorum sensing (QS), is a common regulatory scheme in the microbial world. Pseudomonas aeruginosa¸ an opportunistic pathogen of burn wounds and cystic fibrosis lungs, uses QS to control the expression of hundreds of genes, particularly those necessary for population level benefits such as biofilm...
Resource Type:: Dissertation

Quorum sensing gene regulation in Pseudomonas aeruginosa

Creator:: Gupta, Rashmi
Abstract:: Pseudomonas aeruginosa is an opportunistic human pathogen that infects immunocompromised individuals such as those suffering from burns or the genetic disorder cystic fibrosis. This organism utilizes a cell-cell communication mechanism known as quorum sensing (QS) to coordinate virulence gene expression and biofilm formation. It has three interconnected QS systems, namely...
Resource Type:: Dissertation

Evolution of a streamlined cooperator in Pseudomonas aeruginosa quorum sensing

Creator:: Huie, Jessica L.
Abstract:: Social behavior leading to the production of common goods is prone to exploitation. One such behavior in Pseudomonas aeruginosa is quorum sensing (QS), by which the bacteria produce signals to regulate extracellular common goods. Exploitation comes in the form of cheaters which have a mutation in the central quorum sensing...
Resource Type:: Masters Thesis

Cooperation and conflict in Pseudomonas aeruginosa quorum sensing

Creator:: Wilder, Cara N.
Abstract:: Pseudomonas aeruginosa is an environmental bacterium as well as an opportunistic pathogen that primarily infects immunocompromised individuals, including those suffering from cystic fibrosis. The density-dependent regulation of gene expression via cell-to-cell communication, also termed quorum sensing (QS), is an important virulence determinant in this organism. Generally, P. aeruginosa uses three...
Resource Type:: Dissertation

ScholarsArchive@OSU

Analysis of Mutations Affecting Cooperation in Pseudomonas aeruginosa Populations

Rheological Techniques in Characterization and Aiding in the Modification of Soft Matter

Role of Na+/H+ Membrane Bioenergetics in Virulence Factors of Pseudomonas aeruginosa

Properties of Pseudomonas aeruginosa resistant to quaternary ammonium compound

A study of the lipids of Pseudomonas aeruginosa sensitive and resistant to chloramphenicol and quaternary ammonium compound

Quorum-sensing-controlled public goods in Pseudomonas aeruginosa : regulation and application

Quorum sensing gene regulation in Pseudomonas aeruginosa

Evolution of a streamlined cooperator in Pseudomonas aeruginosa quorum sensing

Cooperation and conflict in Pseudomonas aeruginosa quorum sensing

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