Listeria monocytogenes in Food Safety

This study identifies microbial community signatures associated with Listeria spp. detection in German meat processing facilities, highlighting drains as key niches and linking specific taxa to Listeria presence.

This study investigates how cell chaining in a Listeria monocytogenes divIVA mutant affects virulence, finding that it is not the morphology itself but PrfA- and SecA2-dependent processes that are primarily responsible for attenuation.

This paper develops a k-mer-based method to design PCR primers for rapid, low-cost sequence typing of L. monocytogenes with 100% sensitivity and specificity.

This study shows that static efficacy tests overestimate sanitizer performance against Listeria by not accounting for fluid dynamics and exposure differences in real-world applications.

This study investigates how trehalose metabolism affects PrfA activity in L. monocytogenes, identifying trehalose as a PTS-dependent sugar that supports growth without impacting PrfA.

This study identifies PDH complex defects in L. monocytogenes as critical for intracellular survival, showing that PDH mutants fail to utilize PTS-dependent carbon sources, leading to reduced virulence.

This study identifies folate biosynthesis as critical for Listeria monocytogenes persistence in epithelial cells by regulating ActA levels and activity, revealing a metabolic pathway that enables vacuolar dormancy.

This study identifies the phage shock protein response as a key factor in Listeria monocytogenes susceptibility to the bacteriocin garvicin KS.

The paper identifies antimicrobial-producing bacteria in wooden cheese ripening boards that inhibit Listeria monocytogenes, with a focus on Bacillus safensis as a potential biocontrol agent.

This study investigates how environmental factors and dispersal dynamics influence pangenome fluidity in Listeria monocytogenes across three evolutionary lineages.

This study models peracetic acid decay and Salmonella inactivation during poultry chilling, showing that PAA concentration and exposure time are critical for bacterial inactivation, especially in the presence of organic load.

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

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

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.

This study compares PCR methods to exclude chloroplast co-amplification in bacterial community analysis of Listeria monocytogenes on spinach leaves, finding that different methods affect bacterial diversity and L. monocytogenes growth potential.

The paper analyzes genomic data from Listeria monocytogenes isolates in Germany to identify virulent and hypovirulent clones and their epidemiological patterns.

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.

This study shows that Dynamin 2 and Tuba modulate apical junction structure to control cell-to-cell spread of Listeria monocytogenes by regulating cortical tension.

This study mutagenizes L. monocytogenes to identify genetic mechanisms conferring increased tolerance to benzalkonium chloride, revealing off-target antibiotic resistance.

This paper uses a RECON-/- mouse model to perform Tn-seq screening of Listeria monocytogenes in vivo, identifying novel genes critical for bacterial survival and revealing the role of the D-allose operon in pathogenesis.

This study investigates the role of ethanolamine utilization and bacterial microcompartment formation in Listeria monocytogenes intracellular infection, finding that EA utilization mutants show similar replication defects and immune responses as BMC formation mutants.

This study evaluates Listeria monitoring in small and medium dairy plants, finding that pre-operation sampling can effectively detect persistence sites and suggesting simplified monitoring strategies.

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

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.

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.