Listeria monocytogenes
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA659909 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR12560250_1.fastq.gz | Fastqsanger.gz | |||
| SRR12560250_2.fastq.gz | Fastqsanger.gz | |||
| SRR12560251_1.fastq.gz | Fastqsanger.gz | |||
| SRR12560251_2.fastq.gz | Fastqsanger.gz |
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Project description:Listeria monocytogenes in rabbit meat processing plant
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Project description:The gene expression profiles of L. monocytogenes strain F2365 grown in BHI agar (reference) or on a turkey deli meat (query) was examined. Aminosilane-coated cDNA microarray slide was used. The data from the normalized ratio of query to reference signal for each spot were transformed using a log2 scale. The expression level of genes obtained from the mean of each gene on the twelve slides was considered significantly different over 1.5 fold changes. Thirty nine and forty five genes in L. monocytogenes grown on a turkey meat matrix were upregulated and downregulated, respectively.
2010-02-25 | GSE20274 | GEO
Project description:The foodborne pathogen Listeria monocytogenes uses a number of transcriptional regulators, including the negative regulator HrcA, to control gene expression under different environmental conditions and in response to stress. Gene expression patterns of DhrcA stationary phase cells were compared to wt to identify hrcA-dependent genes. We identified 61 HrcA-dependent genes that showed significant expression ratios (adj. P < 0.05), with ≥ 1.5-fold differential expression between ΔhrcA and wt. Combined with microarray analysis, Hidden Markov Model searches show HrcA directly repress at least 8 genes. Keywords: Listeria monocytogenes, HrcA regulon, stationary phase
2007-11-03 | GSE7517 | GEO
Project description:The foodborne pathogen Listeria monocytogenes uses a number of transcriptional regulators, including the negative regulator CtsR, to control gene expression under different environmental conditions and in response to stress. Gene expression patterns of DctsR log phase cells were compared to both wt and ictsR-mcsA log phase cells grown with 0.5mM IPTG to identify CtsR-dependent genes.We identified 62 CtsR-dependent genes that showed significant expression ratios (adj. P < 0.05), with ≥ 1.5-fold differential expression either between ΔctsR and wt or between ΔctsR and ictsR-mcsA. Keywords: Listeria monocytogenes, CtsR regulon, log phase
2007-10-14 | GSE7514 | GEO
Project description:The gene expression profiles of L. monocytogenes strain F2365 grown in BHI agar (reference) or on a turkey deli meat (query) was examined. Aminosilane-coated cDNA microarray slide was used. The data from the normalized ratio of query to reference signal for each spot were transformed using a log2 scale. The expression level of genes obtained from the mean of each gene on the twelve slides was considered significantly different over 1.5 fold changes. Thirty nine and forty five genes in L. monocytogenes grown on a turkey meat matrix were upregulated and downregulated, respectively. To examine the gene expression profiles of L. monocytogenes grown in BHI agar or on a turkey deli meat, L. monocytogenes strains 4b F2365 aminosilane-coated cDNA microarray slide was used. Cy3 and Cy5 dyes were used for cDNA labelling. Data were obtained from three biological and four technical replicates (n = 12). Each biological replicate included a flip dye assay. TM4 package developed by TIGR was used to analyze the data.
2010-05-14 | E-GEOD-20274 | biostudies-arrayexpress
Project description:Listeria monocytogenes is the ubiquitous food-borne pathogen which causes listeriosis, a disease with a high mortality rate, mostly transmitted through contaminated ready-to-eat foods (EFSA, 2018). To better understand the systemic response of such microorganism exposed at three environmental factors (T, pH and NaCl), the proteome of a L. monocytogenes strain, which was isolated from a meat product (Coppa di testa) linked to a listeriosis outbreak occurred in Marche region (Italy) in 2016, was investigated in order to identify differences in its protein patterns.
2022-08-12 | PXD033519 | Pride
Project description:Time course study of the mouse infection by comparing the genomic transcriptional patterns of Listeria monocytogenes EGDe grown under laboratory conditions (exponential growth phase) with that of in vivo-grown bacteria (in mouse spleens) over three days of infection. Time course study of the mouse infection by comparing the genomic transcriptional patterns of Listeria monocytogenes EGDe grown under laboratory conditions (exponential growth phase) with that of in vivo-grown bacteria (in mouse spleens) over three days of infection.
2010-06-25 | E-GEOD-13057 | biostudies-arrayexpress
Project description:Time course study of the mouse infection by comparing the genomic transcriptional patterns of Listeria monocytogenes EGDe grown under laboratory conditions (exponential growth phase) with that of in vivo-grown bacteria (in mouse spleens) over three days of infection.
2009-05-29 | GSE13057 | GEO
Project description:The formation of Listeria monocytogenes biofilms contributes to persistent contamination in food processing facilities. A microarray comparison of L. monocytogenes between the transcriptome of the strong biofilm forming strain (Bfms) Scott A and the weak biofilm forming (Bfmw) strain F2365 was conducted to identify genes potentially involved in biofilm formation. Among 951 genes with significant difference in expression between the two strains, a GntR-family response regulator encoding gene (LMOf2365_0414), designated lbrA, was found to be highly expressed in Scott A relative to F2365. A Scott A lbrA-deletion mutant, designated AW3, formed biofilm to a much lesser extent as compared to the parent strain by a rapid attachment assay and scanning electron microscopy. Complementation with lbrA from Scott A restored the Bfms phenotype in the AW3 derivative. A second microarray assessment using the lbrA deletion mutant AW3 and the wild type Scott A revealed a total of 304 genes with expression significantly different between the two strains, indicating the potential regulatory role of LbrA in L. monocytogenes. A cloned copy of Scott A lbrA was unable to confer enhanced biofilm forming potential in F2365, suggesting that additional factors contributed to weak biofilm formation by F2365. Findings from the study may lead to new strategies to modulate biofilm formation. Two comparisons were performed between 1) strong biofilm former Listeria monocytogenes strain ScottA versus weak biofilm former Listeria monocytogenes strain F2365; 2) Listeria monocytogenes ScottA LbrA deletion mutant strain versus Listeria monocytogenes ScottA. Four replicates were loaded for the first comparison and two replicates were loaded for the second comparison.
2012-09-06 | E-GEOD-40598 | biostudies-arrayexpress
Project description:Listeria monocytogenes in a frozen vegetable processing environment
| PRJNA979012 | ENA