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Alicia Williams

Honours Student & Lab Assistant

While completing my undergraduate degree in microbiology, I became fascinated by environmental microbiology and the role bacteria play in communities. For my Honours project, I studied the fitness costs of antibiotic resistance mutations in E. coli under different resource regimes. My research aimed to help answer the fundamental question of how resistant and sensitive bacteria coexist in communities, which has numerous applications in ecology, agriculture and healthcare.

Growth-density inversion in Escherichia coli reveals superlinear, not sublinear, density dependence

Growth-density inversion in Escherichia coli reveals superlinear, not sublinear, density dependence
James A. Orr, Kaleigh E. Davis, Alicia H. Williams, Jan Engelstädter, Daniel B. Stouffer, Andrew D. Letten
PLOS Biology, 24, e3003898 (2026)

journal URL

Strong genotype-by-genotype and genotype-by-environment interactions induced by antibiotic resistance mutations

Strong genotype-by-genotype and genotype-by-environment interactions induced by antibiotic resistance mutations
Alicia H. Williams, Ian Gooi, Madelaine Boggan, Ziqing Liu, Andrew D. Letten, Jan Engelstädter
bioRxiv (2025)

preprint URL

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