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Single-molecule, single-cell imaging of stress response systems in Gram-negative bacteria

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2025-09-05
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Abstract

The study of bacterial stress response systems is an important area of research with wide-ranging implications, from understanding the basic bacterial physiology to developing new antimicrobial treatments. This dissertation presents my recent efforts to understand how Gram-negative bacteria adapt to environmental stimuli using live cell fluorescence imaging, genetic engineering, bulk biochemical/cellular assays, and microfluidic mechanical manipulations. Employing these methods, I, in collaboration with others, investigated three types of stress response systems associated with the Gram-negative bacteria cell envelope: multidrug efflux pumps (MEPs), two-components signal transduction systems (TCSs), and metal homeostasis.

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220 pages

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Date Issued

2023-08

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Biomechanics; Cell-to-cell communication; Multidrug efflux pumps; Protein interactions; Super-resolution imaging; Two-component systems

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Union Local

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Committee Chair

Chen, Peng

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Committee Member

Cerione, Richard
Baird, Barbara

Degree Discipline

Chemistry and Chemical Biology

Degree Name

Ph. D., Chemistry and Chemical Biology

Degree Level

Doctor of Philosophy

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Government Document

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dissertation or thesis

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