Presenter Information

Katherine JemianFollow

Major

Molecular Biology

Anticipated Graduation Year

2023

Access Type

Open Access

Abstract

Burkholderia cenocepacia, a pathogenic bacterium to patients with cystic fibrosis, forms a thick biofilm which aids adherence to the lungs' thickened mucosa. This debilitates patients' ability to breathe effectively, enhancing the risk of chronic illness and mortality. Bacterial populations were established from a single population isolate and experienced approximately 500 generations of evolutionary selection in carbon-limited media for biofilm and planktonic-selected biofilm growth. In the lab, we quantified the amount of biofilm produced by evolved populations of Burkholderia cenocepacia using spectroscopy and calculated the analysis of variance. We found a significant biofilm growth difference between planktonic and biofilm-forming populations.

Faculty Mentors & Instructors

Dr. Caroline Turner, Assistant Professor, Department of Biology; Heather Blasius, Graduate Student, Department of Biology

Comments

Additional paper can be made available upon request via email to Katherine Jemian.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

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Quantifying Biofilm Formation in Evolved Planktonic and Biofilm-Forming Populations of Burkholderia cenocepacia in Carbon-Limited Media

Burkholderia cenocepacia, a pathogenic bacterium to patients with cystic fibrosis, forms a thick biofilm which aids adherence to the lungs' thickened mucosa. This debilitates patients' ability to breathe effectively, enhancing the risk of chronic illness and mortality. Bacterial populations were established from a single population isolate and experienced approximately 500 generations of evolutionary selection in carbon-limited media for biofilm and planktonic-selected biofilm growth. In the lab, we quantified the amount of biofilm produced by evolved populations of Burkholderia cenocepacia using spectroscopy and calculated the analysis of variance. We found a significant biofilm growth difference between planktonic and biofilm-forming populations.