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Comprehensive metagenomic analysis of stress-resistant and -sensitive Listeria monocytogenes

  • Genomics, Transcriptomics, Proteomics
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A Correction to this article was published on 28 September 2023

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Abstract

Listeria monocytogenes is a pathogenic bacterium which can live in adverse environments (low pH, high salinity, and low temperature). Even though there are various whole genome sequencing (WGS) data on L. monocytogenes, investigations on genetic differences between stress-resistant and -sensitive L. monocytogenes grown under stress environments have been not fully examined. This study aims to investigate and compare genetic characteristics between stress-resistant and -sensitive L. monocytogenes using whole genome sequencing (WGS). A total of 47 L. monocytogenes strains (43 stress-resistant and 4 stress-sensitive) were selected based on the stress-resistance tests under pH 3, 5% salt concentration, and 1 °C. The sequencing library for WGS was prepared and sequenced using an Illumina MiSeq. Genetic characteristics of two different L. monocytogenes groups were examined to analyze the pangenome, functionality, virulence, antibiotic resistance, core, and unique genes. The functionality of unique genes in the stress-resistant L. monocytogenes was distinct compared to the stress-sensitive L. monocytogenes, such as carbohydrate and nucleotide transport and metabolism. The lisR virulence gene was detected more in the stress-resistant L. monocytogenes than in the stress-sensitive group. Five stress-resistant L. monocytogenes strains possessed tet(M) antibiotic resistance gene. This is the first study suggesting that deep genomic characteristics of L. monocytogenes may have different resistance level under stress conditions. This new insight will aid in understanding the genetic relationship between stress-resistant and -sensitive L. monocytogenes strains isolated from diverse resources.

Key points

Whole genomes of L. monocytogenes isolated from three different sources were analyzed.

Differences in two L. monocytogenes groups were identified in functionality, virulence, and antibiotic resistance genes.

This study first examines the association between resistances and whole genomes of stress-resistant and -sensitive L. monocytogenes.

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Data availability

The whole genome sequences in this study are available at the GenBank of the National Center for Biotechnology Information (NCBI); PRJNA952623.

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Acknowledgements

The authors would like to thank Dr. Hyun Jung Kim, a research of the Korea Food Research Institute for funding, and Dr. Hae Yeong Kim, Sang Do Ha, and Michael Rothrock for sharing strains.

Funding

This research was supported by Korean Food Research Institute funds awarded to Si Hong Park (grant number: E0210702-01).

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Authors

Contributions

S. P. and H.K. conceived and designed research. E. K., S. Y., and H. H. conducted experiments and collected samples. H. H., E. K., S. Y., and S. P. analyzed the data and H. H. and S. P. drafted the manuscript. H. H. and S. P. wrote and critically reviewed the manuscript. All authors read and approved the manuscript.

Corresponding author

Correspondence to Si Hong Park.

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All co-authors agreed to publish data in the scientific journal.

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The authors declare no competing interests.

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The original version of this article was revised. The Figures 1 and 3 are now corrected.

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Hong, H., Yang, S.M., Kim, E. et al. Comprehensive metagenomic analysis of stress-resistant and -sensitive Listeria monocytogenes. Appl Microbiol Biotechnol 107, 6047–6056 (2023). https://doi.org/10.1007/s00253-023-12693-z

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  • DOI: https://doi.org/10.1007/s00253-023-12693-z

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