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Pseudomonas aeruginosa strain:PAO1

ABSTRACT: Transcriptomics analysis of Pseudomonas aeruginosa PAO1 under Elevated Temperature

PROVIDER: PRJNA304652 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3032163_1.fastq.gz	Fastqsanger.gz
	SRR3032163_2.fastq.gz	Fastqsanger.gz
	SRR3032164.fastq.gz	Fastqsanger.gz
	SRR3032164_1.fastq.gz	Fastqsanger.gz
	SRR3032164_2.fastq.gz	Fastqsanger.gz

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Pseudomonas aeruginosa PAO1 response to sphingomyelin

Project description:Analysis of Pseudomonas aeruginosa PAO1 treated with 200 µM sphingomyelin. Results provide insight into the response to sphingomyelin in P. aeruginosa.

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The ParS/ParR regulon in Pseudomonas aeruginosa PAO1

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).

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The ParS/ParR regulon in Pseudomonas aeruginosa PAO1

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Genomic DNA hybridization of Pseudomonas aeruginosa strains PAO1 and PA14

Project description:Genomic DNA from Pseudomonas aeruginosa strains PAO1 and PA14

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Pseudomonas aeruginosa PAO1 virulent genes in the poplar rhizosphere

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

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Temperature dependent gene expression levels at 28°C and 37°C for Pseudomonas aeruginosa PAO1

Project description:To further understand the gene expression characteristics of Pseudomonas aeruginosa PAO1, we have applied whole genome microarray expression profiling as a discovery platform to specify the temperature dependent expression of PAO1 genome at soil and human body temperature. We selected 28°C as temperature representative of the soil niche and 37°C for human body. The results from the temperature dependent transcriptome analysis are consistent to our previous published data that the phzM, ptsP and lasI genes expression is upregulated at 37°C [11]. The comparison analysis of the M18 genome expressional profiles at 28°C and 37°C indicated a total of 596 genes expressed in a temperature dependent manner over two fold.

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Transcriptional modulation of Quoring-sensing signaling throught QslA in Pseudomonas aeruginosa PA14 and PAO1.

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.

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Expression data from persister and normal cells of Pseudomonas aeruginosa PAO1

Project description:Pseudomonas aeruginosa PAO1 persister and normal cells were treated with and without Granulocyte Macrophage Colony-Stimulating Factor (GM-CSF) to understand the effect of GM-CSF on gene expression of PAO1. We used DNA microarrays to identify the down-regulated and up-regulated genes after GM-CSF treatment.

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Project description:Protein complexome analysis of Pseudomonas aeruginosa PAO1 at OD 0.3 in LB media through 10-40% glycerol gradient fractionation in 21 samples.

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