Pseudomonas aeruginosa
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA94999 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Anthropogenic pollution has increased the levels of heavy metals in the environment. Bacterial populations continue to thrive in highly polluted environments and bacteria must have mechanisms to counter heavy metal stress. We chose to examine the response of the environmentally-relevant organism Pseudomonas aeruginosa to two different copper treatments. A short, 45 min exposure to copper was done in the Cu shock treatment to examine the immediate transcriptional profile to Cu stress. The Cu adapted treatment was designed to view the transcriptional profile of cells that were actively growing in the presence of Cu. Experiment Overall Design: We analyzed 2 biological replicates of Pseudomonas aeruginosa exposed to a 45 min Cu shock as compared to a control that was exposed to HCl to bring the pH to similar levels. We analyzed 2 biological replicates of Pseudomonas aeruginosa that were grown in the presence of Cu for approx. 6h (Cu adapted) as compared to an untreated control.
2007-10-24 | E-GEOD-4152 | biostudies-arrayexpress
Project description:Anthropogenic pollution has increased the levels of heavy metals in the environment. Bacterial populations continue to thrive in highly polluted environments and bacteria must have mechanisms to counter heavy metal stress. We chose to examine the response of the environmentally-relevant organism Pseudomonas aeruginosa to two different copper treatments. A short, 45 min exposure to copper was done in the Cu shock treatment to examine the immediate transcriptional profile to Cu stress. The Cu adapted treatment was designed to view the transcriptional profile of cells that were actively growing in the presence of Cu. Keywords: stress response
2006-10-04 | GSE4152 | GEO
Project description:Transcriptional profile of Pseudomonas aeruginosa infected cells
2023-01-01 | GSE199424 | GEO
Project description:This study addresses the impact of zinc limitation on the opportunistic human pathogen, Pseudomonas aeruginosa. Zinc limitation was assessed in the P. aeruginosa PAO1 strain using an isogenic deletion mutant lacking the periplasmic, zinc solute-binding protein, znuA (PA5498). ZnuA delivers bound zinc to its cognate ABC transporter, ZnuBC, for import into the cytoplasm. Our transcriptional analyses revealed P. aeruginosa to possess a multitude of zinc acquisition mechanisms, each of which were highly up-regulated in the zinc-deficient znuA mutant strain. P. aeruginosa also utilized zinc-independent paralogues of zinc-dependent genes to maintain cellular function under zinc limitation. Together, these data reveal the complex transcriptional response and versatility of P. aeruginosa to zinc depletion.
2017-01-01 | GSE60177 | GEO
Project description:Analysis of Pseudomonas aeruginosa PAO1 treated with 200 µM sphingomyelin. Results provide insight into the response to sphingomyelin in P. aeruginosa.
2017-02-12 | GSE83078 | GEO
Project description:The purpose of this experiment is to analyze the changes of transcriptome in Pseudomonas aeruginosa under the action of sodium houttuyfonate (SH), thus revealing the possible mechanism of sodium houttuyfonate inhibiting P. aeruginosa. We analyzed these data in order to compare the transcriptional differences of P. aeruginosa in SH medication group and blank control group.
2019-06-28 | GSE133428 | GEO
Project description:We report the transcriptome of Pseudomonas aeruginosa PA14 under swarming conditions as compared to a swimming control
2019-12-23 | GSE121504 | GEO
Project description:Wound infections are traditionally thought to occur when microbial burden exceeds the innate clearance capacity of host immune system. Here we introduce the idea that the wound environment itself plays a significant contributory role to wound infection. We developed a clinically relevant murine model of soft tissue infection to explore the role of activation of microbial virulence in response to tissue factors as a mechanism by which pathogenic bacteria cause wound infections. Mice underwent abdominal skin incision and light muscle injury with a crushing forceps versus skin incision alone followed by topical inoculation of Pseudomonas aeruginosa. Pseudomonas aeruginosa whole genome transcriptional profiling demonstrated that fascia induced the activation of multiple genes responsible for the synthesis of the iron scavenging protein pyochelin. Ex-vivo murine fascia homogenates were prepared and Pseudomonas aeruginosa MPAO1 was incubated with an inoculum of the fascia homogenate solution. Pseudomonas aeruginosa MPAO1 incubated under the same condtions without the homogenate was used as the control group. Three biological replicates in each group was used.
2014-10-01 | E-GEOD-61925 | biostudies-arrayexpress
Project description:Genomic DNA from Pseudomonas aeruginosa strains PAO1 and PA14
2015-11-15 | GSE67038 | GEO
Project description:Pseudomonas aeruginosa PA3973 encodes a putative TetR family transcriptional regulator, with a helix-turn-helix motif involved in DNA binding. We applied phenotype analyses, as well as transcriptome profiling (RNA-seq), and genome-wide identification of binding sites using ChIP-seq to unravel the biological role of PA3973. The ChIP-seq analysis identified more than 300 PA3973 binding sites in the P. aeruginosa genome, among them 139 were located in intergenic regions. The 13 bp sequence was identified as the preferential binding site of PA3973. The PA3973 regulon encompasses genes involved in stress response, including the putative PA3973-PA3970 operon. Transcriptional profiling of P. aeruginosa PAO1161 overexpressing PA3973 showed changes in the mRNA level of 648 genes; among them, 374 were down-regulated. Concomitantly, ChIP-seq analysis identified more than 300 PA3973 binding sites in the P. aeruginosa genome, among them 139 were located in intergenic regions. The 13 bp sequence was identified as the preferential binding site of PA3973.
2022-11-22 | GSE211769 | GEO