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Casey A, Fox EM, Schmitz-Esser S, et al. Transcriptome analysis of Listeria monocytogenes exposed to biocide stress reveals a multi-system response involving cell wall synthesis, sugar uptake, and motility. Front Microbiol. 2014;5:68doi: 10.3389/fmicb.2014.00068.
Casey, A., Fox, E. M., Schmitz-Esser, S., Coffey, A., McAuliffe, O., & Jordan, K. (2014). Transcriptome analysis of Listeria monocytogenes exposed to biocide stress reveals a multi-system response involving cell wall synthesis, sugar uptake, and motility. Frontiers in microbiology, 568. https://doi.org/10.3389/fmicb.2014.00068
Casey, Aidan, et al. "Transcriptome analysis of Listeria monocytogenes exposed to biocide stress reveals a multi-system response involving cell wall synthesis, sugar uptake, and motility." Frontiers in microbiology vol. 5 (2014): 68. doi: https://doi.org/10.3389/fmicb.2014.00068
Casey A, Fox EM, Schmitz-Esser S, Coffey A, McAuliffe O, Jordan K. Transcriptome analysis of Listeria monocytogenes exposed to biocide stress reveals a multi-system response involving cell wall synthesis, sugar uptake, and motility. Front Microbiol. 2014 Feb 28;5:68. doi: 10.3389/fmicb.2014.00068. eCollection 2014. PMID: 24616718; PMCID: PMC3937556.
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Front Microbiol. 2014 Feb 28;5:68. doi: 10.3389/fmicb.2014.00068. eCollection 2014.

Transcriptome analysis of Listeria monocytogenes exposed to biocide stress reveals a multi-system response involving cell wall synthesis, sugar uptake, and motility.

Frontiers in microbiology

Aidan Casey, Edward M Fox, Stephan Schmitz-Esser, Aidan Coffey, Olivia McAuliffe, Kieran Jordan

Affiliations

  1. Teagasc Food Research Centre Fermoy, Ireland.
  2. CSIRO Animal Food and Health Sciences Werribee, VIC, Australia.
  3. Department of Farm Animals and Veterinary Public Health, Institute of Milk Hygiene, University of Veterinary Medicine Vienna, Austria.
  4. Department of Biological Sciences, Cork Institute of Technology Cork, Ireland.

PMID: 24616718 PMCID: PMC3937556 DOI: 10.3389/fmicb.2014.00068

Abstract

Listeria monocytogenes is a virulent food-borne pathogen most often associated with the consumption of "ready-to-eat" foods. The organism is a common contaminant of food processing plants where it may persist for extended periods of time. A commonly used approach for the control of Listeria monocytogenes in the processing environment is the application of biocides such as quaternary ammonium compounds. In this study, the transcriptomic response of a persistent strain of L. monocytogenes (strain 6179) on exposure to a sub-lethal concentration of the quaternary ammonium compound benzethonium chloride (BZT) was assessed. Using RNA-Seq, gene expression levels were quantified by sequencing the transcriptome of L. monocytogenes 6179 in the presence (4 ppm) and absence of BZT, and mapping each data set to the sequenced genome of strain 6179. Hundreds of differentially expressed genes were identified, and subsequent analysis suggested that many biological processes such as peptidoglycan biosynthesis, bacterial chemotaxis and motility, and carbohydrate uptake, were involved in the response of L. monocyotogenes to the presence of BZT. The information generated in this study further contributes to our understanding of the response of bacteria to environmental stress. In addition, this study demonstrates the importance of using the bacterium's own genome as a reference when analysing RNA-Seq data.

Keywords: Listeria monocytogenes; RNA-Seq; benzethonium chloride; biocide stress; gene expression; transcriptome

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