Listeria monocytogenes in Food Safety

Virulence priming of Listeria monocytogenes inside replication-permissive endolysosomes

This study shows that Listeria monocytogenes primes its cytosolic virulence program inside eSLAPs, enabling faster actin recruitment upon escape.

Cultivation conditions of leafy vegetables determine phyllosphere bacterial community structures and ultimately affect growth of L. monocytogenes post-harvest

This study shows that cultivation conditions shape phyllosphere bacterial communities, which in turn influence the growth of L. monocytogenes on leafy vegetables post-harvest.

Listeria monocytogenes Requires Phosphotransferase Systems to Facilitate Intracellular Growth and Virulence

This study shows that Listeria monocytogenes uses phosphotransferase systems (PTS) for intracellular growth and virulence, contradicting previous models that excluded PTS in cytosolic metabolism.

Reduction of Listeria on stainless steel surfaces is impacted by sanitizer application method

This study evaluates how different sanitizer application methods affect Listeria reduction on stainless steel surfaces, finding that spray application yields higher reductions than submersion or manual spraying.

Using the chicken embryo as an in vivo model to revive viable but non-culturable (VBNC) pathogens

This paper demonstrates the use of the chicken embryo as an in vivo model to revive viable but non-culturable Listeria monocytogenes, highlighting the role of embryo-associated factors in this process.

A genome-wide screen in ex vivo gallbladders identifies Listeria monocytogenes factors required for virulence in vivo

This study identifies 43 Listeria monocytogenes genes essential for replication in ex vivo gallbladders, with some genes also critical for virulence in a murine model of listeriosis.

Listeria monocytogenes cell-to-cell spread bypasses nutrient limitation for replicating intracellular bacteria

This study shows that Listeria monocytogenes uses cell-to-cell spread to bypass nutrient limitation in host cells, allowing continuous replication and avoiding stationary phase.

Genomic characterisation of Listeria monocytogenes isolated from normally sterile human body fluids in Lithuania from 2016 to 2021

This study characterizes Listeria monocytogenes isolates from Lithuania using whole-genome sequencing, identifying two phylogenetic lineages, three serogroups, and no acquired antimicrobial resistance genes.

Biofilm Forming Capacity, Sanitizer Tolerance and Genetic Characterization of Persistent and Non-Persistent Listeria monocytogenes from Artisanal Cheese Processing Environments

This study examines Listeria monocytogenes isolates from cheese facilities, finding persistent strains form dense biofilms and are highly resistant to sanitizers, with EPS production linked to nutrient conditions.

Oxford Nanopore's 2024 sequencing technology for Listeria monocytogenes outbreak detection and source attribution: progress and clone-specific challenges

This study evaluates Oxford Nanopore Technologies for Listeria monocytogenes outbreak detection, finding most assemblies suitable for high-resolution genotyping but with challenges from methylation motifs.

Whole-Genome Analysis of Stress Resistance-Related Genes in Listeria monocytogenes

This study analyzes whole-genome sequences of Listeria monocytogenes strains to explore associations between lineage, strain type, isolation source, geography, and resistance genes.

ListPred: A predictive ML tool for virulence potential and disinfectant tolerance in Listeria monocytogenes

ListPred predicts virulence potential and disinfectant tolerance in Listeria monocytogenes using WGS data with minimal computational resources and expertise.

Quantitative prediction of disinfectant tolerance in Listeria monocytogenes using whole genome sequencing and machine learning

This paper predicts disinfectant tolerance in Listeria monocytogenes using whole genome sequencing and machine learning, achieving high accuracy in classification and regression tasks.

Probing the Evolution of Genes Associated With DNA Methylation in Listeria monocytogenes

The paper investigates the evolutionary lineage and ancestry of Listeria monocytogenes strains with unique methylase genes, finding they belong to Lineage I and are not orthologous to other bacterial genera.

First genome-based characterization of Listeria monocytogenes in Costa Rica

This study characterizes Listeria monocytogenes genomes from Costa Rica, identifies unnoticed outbreaks, and advocates for mandatory reporting to enhance surveillance.

In vitro evolution of Listeria monocytogenes reveals selective pressure for loss of SigB and AgrA function at different incubation temperatures.

This study shows that Listeria monocytogenes evolves to lose SigB or Agr function under different temperatures, increasing competitive fitness in specific conditions.

Emergence and global spread of Listeria monocytogenes main clinical clonal complex

This study traces the global spread of Listeria monocytogenes clonal complex 1 (Lm-CC1) through historical data, identifying two waves of expansion linked to livestock trade and cattle farming.

Whole-Genome Sequence Typing shows extensive diversity of Listeria monocytogenes in the outdoor environment and poultry processing plants.

The paper develops Haplo-ST, an open-source tool for whole-genome MLST of Listeria monocytogenes, showing it can differentiate isolates from different environments with high sensitivity.