Colonisation dynamics of Listeria monocytogenes strains isolated from food production environments

Listeria monocytogenes is a ubiquitous bacterium capable of colonising and persisting within food production environments (FPEs) for many years, even decades. This ability to colonise, survive and persist within the FPEs can result in food product cross-contamination, including vulnerable products s...

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Vydáno v:Scientific Reports Ročník 11; číslo 1; s. 12195 - 17
Hlavní autoři: Gray, Jessica, Chandry, P. Scott, Kaur, Mandeep, Kocharunchitt, Chawalit, Fanning, Séamus, Bowman, John P., Fox, Edward M.
Médium: Journal Article
Jazyk:angličtina
Vydáno: London Springer Science and Business Media LLC 09.06.2021
Nature Publishing Group UK
Nature Publishing Group
Nature Portfolio
Témata:
631/326/421
631/326/46
Bacterial Proteins
Biofilms
C500
Colonization
D600
dk/atira/pure/sustainabledevelopmentgoals/zero_hunger
dk/atira/pure/sustainabledevelopmentgoals/zero_hunger; name=SDG 2 - Zero Hunger
Energy metabolism
Environmental Monitoring
Food
Food Contamination
Food Microbiology
Food production
food production environments
Food-Processing Industry
Gene expression
Growth rate
Humanities and Social Sciences
Listeria
Listeria monocytogenes
Listeriosis
Medicine
Metabolism
multidisciplinary
Phenotypes
Q
R
Science
Science (multidisciplinary)
SDG 2 - Zero Hunger
Transcriptome
Transcriptomes
Virulence Factors
ISSN:2045-2322, 2045-2322
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Shrnutí:Listeria monocytogenes is a ubiquitous bacterium capable of colonising and persisting within food production environments (FPEs) for many years, even decades. This ability to colonise, survive and persist within the FPEs can result in food product cross-contamination, including vulnerable products such as ready to eat food items. Various environmental and genetic elements are purported to be involved, with the ability to form biofilms being an important factor. In this study we examined various mechanisms which can influence colonisation in FPEs. The ability of isolates (n = 52) to attach and grow in biofilm was assessed, distinguishing slower biofilm formers from isolates forming biofilm more rapidly. These isolates were further assessed to determine if growth rate, exopolymeric substance production and/or the agr signalling propeptide influenced these dynamics and could promote persistence in conditions reflective of FPE. Despite no strong association with the above factors to a rapid colonisation phenotype, the global transcriptome suggested transport, energy production and metabolism genes were widely upregulated during the initial colonisation stages under nutrient limited conditions. However, the upregulation of the metabolism systems varied between isolates supporting the idea that L. monocytogenes ability to colonise the FPEs is strain-specific.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-91503-w