Project description:In order to understand how Pseudomonas aeruginosa responds to low oxygen we grew strain PAO1 with 3 different oxygen concentrations: 2%, 0.4% and 0% supplemented with nitrate as an electron acceptor. Gene expression under these conditions was compared to that of cells grown with 20% oxygen. Experiment Overall Design: Transcriptome profiles of Pseudomonas aeruginosa cells grown with 20% oxygen were compared to transcriptome profiles obtained by growing cells with 2%, 0.4% and 0% oxygen (with nitrate as the electron acceptor).

2008-06-15 | E-GEOD-6741 | biostudies-arrayexpress

Transcription profiling by array of Pseudomonas aeruginosa wild type, BphP and BphO strains.

Project description:The transcriptome of two different Pseudomonas aeruginosa mutant strains were compared to the Pseudomonas aeruginosa wild type strain in the stationary growth phase

2010-04-24 | E-MEXP-2606 | biostudies-arrayexpress

Microarray Analysis of Toxicogenomic Effects of Chlorhexidine diacetate on Pseudomonas aeruginosa

Project description:In the present study, we employed Affymetrix Pseudomonas aeruginosa GeneChip arrays to investigate the dynamics of global gene expression profiles during the cellular response of Pseudomonas aeruginosa to Chlorhexidine diacetate, which involved initial growth inhibition and metabolism. Keywords: Transcriptome study

2009-01-10 | GSE14253 | GEO

Transcriptome Sequence of Antibiotic-Treated Pseudomonas aeruginosa

Project description:Pseudomonas aeruginosa is known to tolerate antibiotic therapy during infection. This prevents clearance of infection and negatively impacts patient outcomes. Here, we report the transcriptome sequence of antibiotic-treated and untreated P. aeruginosa cultures and the differential gene expression observed when treated cells are compared to untreated cells.

2018-10-31 | GSE120602 | GEO

Swarming motility in Pseudomonas aeruginosa

Project description:We report the transcriptome of Pseudomonas aeruginosa PA14 under swarming conditions as compared to a swimming control

2019-12-23 | GSE121504 | GEO

Role of ndvB on gene expression in Pseudomonas aeruginosa

Project description:ndvB is a gene expressed preferrentialy in biofilms of Pseudomonas aeruginosa and has been implicated in antibiotic resistance. This gene also has a role in signaling in some plant pathogens. A knockout ndvB strain was used to determine if it controlled any other gene expression related to antibiotic resistance We used microarrays of wildtype and ndvB knockout P. aeruginosa grown in biofilms to identify the role of ndvB in gene expression

2012-04-26 | GSE32032 | GEO

Zinc acquisition in Pseudomonas aeruginosa

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

SigX ECF sigma factor deletion mutant expression profile in Pseudomonas aeruginosa in M9 minimal medium (M9G)

Project description:Analysis of a SigX knockout mutant of Pseudomonas aeruginosa H103 strain in minimal medium with glucose as carbon source (M9G). SigX, one of the 19 extra-cytoplasmic function sigma factors of P. aeruginosa, was only known to be involved in transcription of the gene encoding the major outer membrane protein OprF in Pseudomonas aeruginosa. Deletion of the ECF sigma factor sigX gene provide insights into the SigX role in several virulence and biofilm- related phenotypes in Pseudomonas aeruginosa.

2014-01-01 | GSE51076 | GEO

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