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Filtering by: Language English [eng] Remove constraint Language: English [eng] Subject Quorum sensing (Microbiology) Remove constraint Subject: Quorum sensing (Microbiology)

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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
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

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Academic Affiliation

Microbiology4

Advisor

Schuster, Martin5

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2011 to 2019

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Committee Member

Chang, Jeff4
Ream, Walt4
Dolan, Mark1
Ely, Roger1
Geller, Bruce1
more Committee Members »

Creator

Gupta, Rashmi1
Huie, Jessica L.1
Mellbye, Brett L.1
Robinson, Tanner M.1
Wilder, Cara N.1

Date

Date range begin – Date range end

Current results range from 2011 to 2018

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Decade

2010-20195

Degree Field

Microbiology4
Molecular and Cellular Biology1

Degree Level

Doctoral3
Master's2

Degree Name

Doctor of Philosophy (Ph.D.)3
Master of Science (M.S.)2

Language

English [eng][remove]5

License

All rights reserved5

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No5

Resource Type

Dissertation3
Masters Thesis2

Rights Statement

In Copyright5

Subject

Pseudomonas aeruginosa5
Quorum sensing (Microbiology)[remove]5
Bacterial genetics2
Bacteria -- Evolution1
Genetic regulation1
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