Pseudomonas aeruginosa
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA324695 | ENA |
REPOSITORIES: ENA
Similar Datasets
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:Genomic DNA from Pseudomonas aeruginosa strains PAO1 and PA14
2015-11-15 | GSE67038 | GEO
Project description:Pseudomonas aeruginosa PAO1 contacted with and without poplar roots gene expression Poplar contacted with and without PAO1 gene expression. All samples cultured in 1 x hrp + 0.25 % sucrose Keywords: Contact with different species
2007-03-18 | GSE5887 | GEO
Project description:Analysis of Pseudomonas aeruginosa PAO1 (ATCC 15692) treated by Tanreqing. PAO1 cells are evaluated with RNA-seq to understand the genes affected by this antibacterial agent. Our results provide new vision on the mode of action by Tanreqing.
2020-11-19 | GSE141753 | GEO
Project description:The ParS/ParR two component regulatory system plays important roles for multidrug resistance in Pseudomonas aeruginosa. In this study we report RNA-seq analyses of the transcriptomes of P. aeruginosa PAO1 wild type and par mutants growing in a minimal medium containing 2% casamino acids. This has allowed the quantification of PAO1 transcriptome, and further defines the regulon that is dependent on the ParS/ParR system for expression. Our RNA-seq analysis produced the first estimates of absolute transcript abundance for the 5570 coding genes in P. aeruginosa PAO1. Comparative transcriptomics of P. aeruginosa PAO1 and par mutants identified a total of 464 genes regulated by ParS and ParR. Results also showed that mutations in the parS/parR system abolished the expression of the mexEF-oprN operon by down-regulating the regulatory gene mexS. In addition to affecting drug resistance genes, transcripts of quorum sensing genes (rhlIR and pqsABCDE-phnAB), were significantly up-regulated in both parS and parR mutants. Consistent with these results, a significant portion of the ParS/ParR regulated genes belonged to the MexEF-OprN and quorum sensing regulons. Deletion of par genes also lead to overproduction of phenazines and increased swarming motility, consistent with the up-regulation of quorum sensing genes. Our results established a link among ParS/ParR, MexEF-OprN and quorum sensing in Pseudomonas aeruginosa. Based on these results, we propose a model to illustrate the relationship among these regulatory systems in P. aeruginosa. A total of 9 samples were analyzed in AB medium + 2% casamino acids, Pseudomonas aeruginosa PAO1 wild type strain (3 replicates); Pseudomonas aeruginosa parS mutant (3 replicates); Pseudomonas aeruginosa parR mutant (3 replicates).
2016-02-26 | E-GEOD-44681 | biostudies-arrayexpress
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:To further determine the origin of the increased virulence of Pseudomonas aeruginosa PA14 compared to Pseudomonas aeruginosa PAO1, we report a transcriptomic approach through RNA sequencing. Next-generation sequencing (NGS) has revolutioned sistems-based analsis of transcriptomic pathways. The goals of this study are to compare the transcriptomic profile of all 5263 orthologous genes of these nearly two strains of Pseudomonas aeruginosa.
2019-09-23 | GSE125646 | GEO
Project description:In this experiment the transcriptional response of the opportunistic human pathogen Pseudomonas aeruginosa to sublethal concentrations of NaClO was investigated. To this aim, four independent cultures of P. aeruginosa PAO1 grown in minimal medium BM2 were treated with NaClO (2 ug/ml) for 1 h at 37 C followed by RNA extraction and microarray analysis. Untreated cultures served as controls.
2018-04-30 | E-MTAB-2876 | biostudies-arrayexpress
Project description:To gain insights into the initial phases of P. aeruginosa infections and to identify P. aeruginosa genes regulated in response to respiratory epithelia we exposed P. aeruginosa to cultured primary differentiated human airway epithelia. We used a P. aeruginosa strain (PAO1) that causes acute damage to the epithelia and a mutant (PAOSC11) with defects in Type III secretion and in rhamnolipid synthesis. The mutant did not cause rapid damage to epithelia as did the wildtype. Keywords: Pseudomonas aeruginosa and respiratory epithelia
2006-12-19 | GSE4614 | GEO
Project description:The Pseudomonas aeruginosa response regulator AlgR is critical for the organism's virulence and controls up to 155 different genes. In order to determine which genes are controlled by phosphorylated and unphosphorylated AlgR, phosphomimetic and phosphoablative alleles were recombined onto the chromosome of PAO1. The algR gene was mutated at aspartate 54 to asparagine (D54N) for the phosphoablative allele and mutated at aspartete 54 to glutamate (D54E) for the phosphomimetic allele. These alleles were recombined into the PAO1 chromosome.
2017-10-03 | GSE97245 | GEO