Background: Listeria consists of both pathogenic and non-pathogenic species. Reports of similarities between the genomic content between some pathogenic and non-pathogenic species necessitates the investigation of these species at the genomic level to understand the evolution of virulence-associated genes. With Listeria genome data growing exponentially, comparative genomic analysis may give be...

Physiological saline was found to be very detrimental to the viability of Listeria monocytogenes. The LD(50) value was substantially reduced when peptone was used as the suspending fluid rather than saline. Normal splenic tissue was not inhibitory to the survival of Listeria. In experimentally infected mice, L. monocytogenes survived for 8 days in the peritoneal cavity and for at least 11 days ...

Citation: Wachiralurpan S, Sriyapai T, Areekit S, Sriyapai P, Augkarawaritsawong S, Santiwatanakul S and Chansiri K (2018) Rapid Colorimetric Assay for Detection of Listeria monocytogenes in Food Samples Using LAMP Formation of DNA Concatemers and Gold Nanoparticle-DNA Probe Complex. Front. Chem. 6:90. doi: 10.3389/fchem.2018.00090 Rapid Colorimetric Assay for Detection of Listeria monocytogene...

A selective-enrichment procedure (SEP) was developed to isolate Listeria monocytogenes from fecal and biologic specimens. This procedure was compared with direct plating with McBride listeria agar and 2-, 4-, and 8-week cold-enrichment procedures in recovering L. monocytogenes from mouse fecal, liver, and brain specimens. Although the SEP occasionally did not isolate the organism from specimens...

A method was developed to enhance the sensitivity of a Listeria monocytogenes PCR detection system by in vitro transcription of amplicons incorporating bacteriophage T7 RNA polymerase promoter sequences in one of the priming oligonucleotides. The resulting transcript can be detected by hybridization with a DNA probe immobilized in the wells of a microtiter plate, followed by immunoenzymatic ass...

Samples were taken from 100 camel sausages from the different retail markets in Aydin province in the south-west of Turkey and they were tested for the presence of Listeria spp by biochemical methods. Samples were enriched using Listeria Enrichment Broth and they were inoculated onto Listeria Selective Agar. Listeria monocytogenes was isolated from nine samples (9%), Listeria innocua from 14 sa...

The generation of CD4(+) T cell memory cells is poorly understood. Recently, two different murine CD4(+) TCR transgenic T cell lines, LLO118 and LLO56, both specific for the same epitope but differing in their expression level of the cell surface protein CD5, were generated. Notably, these cell lines showed different behavior upon primary and secondary exposure to Listeria monocytogenes. Wherea...

We assessed the susceptibility of several pathogenic and non-pathogenic Listeria species to antimicrobial peptides of animal and plant origin. Human defensins and thionins were highly inhibitory, whereas protamine, snakin and magainin showed an intermediate effect. A temperature dependence in the activity of potato defensin was observed for Listeria monocytogenes and Listeria ivanovii. PrfA* L....