Transcriptomic Analysis of the Adaptation of Listeria monocytogenes to Growth on Vacuum-Packed Cold Smoked Salmon

The foodborne pathogen Listeria monocytogenes is able to survive and grow in ready-to-eat foods, in which it is likely to experience a number of environmental stresses due to refrigerated storage and the physicochemical properties of the food. Little is known about the specific molecular mechanisms...

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Bibliographic Details
Published in:Applied and Environmental Microbiology 2015-10, Vol.81 (19), p.6812-6824
Main Authors: Tang, Silin, Orsi, Renato H, den Bakker, Henk C, Wiedmann, Martin, Boor, Kathryn J, Bergholz, Teresa M
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Animals
Bacterial Proteins - genetics
Bacterial Proteins - metabolism
Biosynthesis
Fish Products - microbiology
Food Contamination - analysis
Food Microbiology
Food Packaging
Food Preservation
Genes
Listeria
Listeria monocytogenes
Listeria monocytogenes - genetics
Listeria monocytogenes - growth & development
Listeria monocytogenes - physiology
Proteins
Ribonucleic acid
RNA
Salmon - microbiology
Salmonidae
Transcriptome
Vacuum
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Summary:The foodborne pathogen Listeria monocytogenes is able to survive and grow in ready-to-eat foods, in which it is likely to experience a number of environmental stresses due to refrigerated storage and the physicochemical properties of the food. Little is known about the specific molecular mechanisms underlying survival and growth of L. monocytogenes under different complex conditions on/in specific food matrices. Transcriptome sequencing (RNA-seq) was used to understand the transcriptional landscape of L. monocytogenes strain H7858 grown on cold smoked salmon (CSS; water phase salt, 4.65%; pH 6.1) relative to that in modified brain heart infusion broth (MBHIB; water phase salt, 4.65%; pH 6.1) at 7°C. Significant differential transcription of 149 genes was observed (false-discovery rate [FDR],
ISSN:0099-2240
1098-5336
1098-6596
DOI:10.1128/aem.01752-15