ArticleFoodborne pathogens and disease2010
Salt stress phenotypes in Listeria monocytogenes vary by genetic lineage and temperature.
Article in Foodborne pathogens and disease, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 64 citations in OpenAlex.
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- Pathogenicity and virulence ofVirulence · 2021Article
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- Characterization of a Novel Group ofViruses · 2021Article
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- Nature versus Nurture: Assessing the Impact of Strain Diversity and Pregrowth Conditions on Salmonella enterica, Escherichia coli, andApplied and environmental microbiology · 2021Article
- Potassium Lactate as a Strategy for Sodium Content Reduction without Compromising Salt-Associated Antimicrobial Activity in Salami.Foods (Basel, Switzerland) · 2021Article
- Complete Genome Sequences of Three Listeria monocytogenes Bacteriophage Propagation Strains.Microbiology resource announcements · 2021Article
- Different Shades ofFrontiers in microbiology · 2021Article
- Neurotropic Lineage III Strains of Listeria monocytogenes Disseminate to the Brain without Reaching High Titer in the Blood.mSphere · 2020Article
- Strain Variability ofApplied and environmental microbiology · 2020Article
- Variable Carbon Source Utilization, Stress Resistance, and Virulence Profiles AmongFrontiers in microbiology · 2019Article
- Assembly and Characterization of a Pathogen Strain Collection for Produce Safety Applications: Pre-growth Conditions Have a Larger Effect on Peroxyacetic Acid Tolerance Than Strain Diversity.Frontiers in microbiology · 2019Article
- Genes significantly associated with lineage II food isolates of Listeria monocytogenes.BMC genomics · 2018Article
- Comparative Phenotypic and Genotypic Analysis of Swiss and FinnishFrontiers in microbiology · 2017Article
- Genotypes Associated withFrontiers in microbiology · 2017Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Listeria monocytogenes can survive and grow under wide-ranging environmental stress conditions encountered both in foods and in the host. The ability of certain L. monocytogenes subtypes to thrive under stress conditions present in specific niches was hypothesized to reflect genetic characteristics and phenotypic capabilities conserved among strains within a subtype. To quantify variations in salt stress phenotypes among 40 strains selected to represent the diversity of the three major L. monocytogenes genetic lineages and to determine if salt stress phenotypes were associated with genetic relatedness, we measured growth under salt stress at both 7°C and 37°C. At 7°C, in brain-heart infusion with 6% NaCl, average growth rates among the lineages were similar. A comparison of doubling times after exposure to salt stress at 7°C or 37°C indicated that growth at 7°C provided crossprotection to subsequent salt stress for strains in lineages I and II. At 37°C, in brain-heart infusion with 6% NaCl, lineage I and III strains grew significantly faster (p<0.0001) than lineage II strains. Under salt stress at 37°C, differences in growth parameters were significantly (p<0.005) associated with genetic relatedness of the strains. Compatible solute uptake is part of the L. monocytogenes salt stress response, but growth differences between the lineages were not related to differences in transcript levels of osmolyte transporter-encoding genes betL, gbuA, oppA, and opuCA. The combination of phylogenetic and phenotypic data suggests that L. monocytogenes lineage I and III strains, which are most commonly associated with human and animal disease, may be better adapted to osmotic stress at 37°C, conditions that are present in the host gastrointestinal tract.
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