Ontology highlight
ABSTRACT:
PROVIDER: PRJNA658237 | ENA |
REPOSITORIES: ENA
Similar Datasets
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:Survival of the foodborne pathogen Listeria monocytogenes in acidic environments (e.g., stomach and low pH foods) is vital to its transmission. L. monocytogenes grows at temperatures as low as 2°C, and refrigerated, ready-to-eat foods have been sources of L. monocytogenes outbreaks. The purpose of this study was to determine whether growth at a low temperature (i.e., 7°C) affects the response of L. monocytogenes to sudden acid shock.
2011-07-01 | GSE22672 | GEO
Project description:Listeria mopnocytogenes from imported foods
| PRJNA762939 | ENA
Project description:Ochratoxin A (OTA) is a fungal secondary metabolite widely found in cereal and a wide variety of foods; it also exhibits carcinogenic effects, nephrotoxicity, and teratogenicity. In this study, the zebrafish was applied to investigate the effects of ochratoxin A on gene expressions in zebrafish embryos.
2018-07-16 | GSE71345 | GEO
Project description:Saliva is composed of a variety of molecules that modulate the oral cavity. It is mainly composed of water (95%) and several minor components such as electrolytes, proteins, and low molecular weight compounds. It consists of metabolites from drinks, foods, drugs, environmental contaminants, and bacterial by-products. As part of the ongoing human metabolome project, the human cerebrospinal fluid metabolome, the human serum metabolome, and recently the human urine metabolome have been characterized. Unlike urine, serum, and cerebrospinal fluid, saliva metabolomics have not shown much progress. Therefore, the present study aims at characterizing the human saliva metabolome. In an attempt to understand saliva metabolomics, we have undertaken comprehensive multi analytical tools based quantitative metabolomics. The nuclear magnetic resonance (NMR) spectroscopy data is presented in this study.
2015-09-01 | MTBLS100 | MetaboLights
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:Diversity of environmental bacteria that disperse efficiently on surfaces
| PRJNA400555 | ENA
Project description:Survival of the foodborne pathogen Listeria monocytogenes in acidic environments (e.g., stomach and low pH foods) is vital to its transmission. L. monocytogenes grows at temperatures as low as 2M-BM-0C, and refrigerated, ready-to-eat foods have been sources of L. monocytogenes outbreaks. The purpose of this study was to determine whether growth at a low temperature (i.e., 7M-BM-0C) affects the response of L. monocytogenes to sudden acid shock. A full genome microarray was used to determine changes in L. monocytogenes 10403S gene expression after exposure to acidified brain-heart infusion (BHI; pH 3.5) for 5 or 15 min. To determine changes in gene transcription after acid treatment, separate competitive hybridizations were performed between cDNA from untreated cells (grown at 7M-BM-0C or 37M-BM-0C to log or stationary phase) and (i) cells acid treated for 5 min or (ii) cells acid treated for 15 min. For L. monocytogenes grown to log or stationary phase, competitive hybridizations were performed between total cDNA from non-acid-treated cells grown to 7M-BM-0C and non-acid-treated cells grown to 37M-BM-0C to determine baseline differences in gene transcription between growth temperatures prior to acid treatment. For each experiment, four biological replications were completed. Hybridizations were carried out with dye swapping (i.e., for each comparison, each cDNA from each condition was labeled with each dye exactly twice) to help minimize dye incorporation bias.
2011-06-30 | E-GEOD-22672 | biostudies-arrayexpress