Oleksii Omelchenko

Postgraduate Student

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Listeria and other invasive pathogens

I am currently working towards my PhD in Gilmour’s group, where I am investigating how Listeria monocytogenes adapts to the common stresses of food factory environments to establish highly resilient reservoirs.

Previous to this I obtained an MRes qualification from Imperial College, where I completed two projects. In the first project I investigated the effects of broad-spectrum antibiotics on the production of metabolites by gut microbiota and in the second I studied toxin-inner tube interactions in T6SS. My first research experience comes from my placement year at the University of Barcelona where I was investigating the effects of transcription elongation factors on the production of biofilms in Salmonella.

Gutiérrez AV, Matthews M, Diaz M, Le Viet T, de Oliveira Martins L, Jørgensen F, Aird H, Painset A, Som N, Omelchenko O, Adriaenssens EM, Kingsley RA, Gilmour MW. (2025)

Population structure and gene flux of Listeria monocytogenes ST121 reveal prophages as a candidate driver of adaptation and persistence in food production environments.

Microbial genomics


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Diaz M, Aird H, Le Viet T, Gutierrez AV, Larke-Mejia N, Omelchenko O, Moragues-Solanas L, Fritscher J, Som N, McLauchlin J, Hildebrand F, Jørgensen F, Gilmour M. (2024)

Microbial composition and dynamics in environmental samples from a ready-to-eat food production facility with a long-term colonization of Listeria monocytogenes

Food Microbiology


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