GEO DataSets

(Submitter supplied) The expression profile of an S. Typhimurium mutant strain unable to synthesise ppGpp (relAspoT deletions) was compared to the wild-type strain. The effect of ppGpp on virulence gene expression was studied under 4 different growth conditions that induce virulence gene expression. Keywords: genetic modification

Organism:

Salmonella enterica subsp. enterica serovar Typhimurium str. SL1344; Salmonella enterica subsp. enterica serovar Typhimurium str. LT2; Salmonella enterica subsp. enterica serovar Typhimurium

Type:

Expression profiling by array

Platforms:

GPL3586 GPL3612

32 Samples

Download data: GPR

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Salmonella enterica subsp. enterica serovar Enteritidis; Salmonella enterica subsp. enterica serovar Typhimurium str. SL1344; Salmonella enterica subsp. enterica serovar Gallinarum str. 287/91; Salmonella enterica subsp. enterica serovar Typhimurium str. DT104; Salmonella enterica subsp. enterica serovar Typhimurium str. LT2

Type:

Expression profiling by array; Genome binding/occupancy profiling by array

Platforms:

GPL19472 GPL13609

101 Samples

Download data: GPR, TXT

(Submitter supplied) S. Typhimurium SL1344 parental strain and isogenic ΔrpoS, ΔrelAΔspoT and ΔrelAΔspoTΔrpoS strains were grown to OD600=1.0, OD600=2.3, OD600=3.0 and OD600=4.2 in Luria-Bertani medium.

Organism:

Salmonella enterica subsp. enterica serovar Enteritidis; Salmonella enterica subsp. enterica serovar Typhimurium str. SL1344; Salmonella enterica subsp. enterica serovar Gallinarum str. 287/91; Salmonella enterica subsp. enterica serovar Typhimurium str. DT104; Salmonella enterica subsp. enterica serovar Typhimurium str. LT2

Type:

Expression profiling by array

Platform:

GPL13609

35 Samples

Download data: GPR

(Submitter supplied) S. Typhimurium SL1344 parental strain and isogenic ΔrpoS, ΔdksA and ΔrelAΔspoT, ΔrelAΔspoTΔrpoS and ΔrelAΔspoTΔdksA strains were grown to OD600=1.0, OD600=2.3, OD600=3.0 and OD600=4.2 in Luria-Bertani medium.

Organism:

Salmonella enterica subsp. enterica serovar Typhimurium str. SL1344; Salmonella enterica subsp. enterica serovar Enteritidis; Salmonella enterica subsp. enterica serovar Gallinarum str. 287/91; Salmonella enterica subsp. enterica serovar Typhimurium str. DT104; Salmonella enterica subsp. enterica serovar Typhimurium str. LT2

Type:

Expression profiling by array

Platform:

GPL13609

30 Samples

Download data: TXT

(Submitter supplied) S. Typhimurium parent, ppGpp0 and dksA strains were grown to OD's of 2.3 (ESP) and 4.2 (LSP) and subjected to ChIP-chip analysis at 60 nt resolution.

Organism:

Salmonella enterica subsp. enterica serovar Typhimurium str. SL1344

Type:

Genome binding/occupancy profiling by array

Platform:

GPL19472

36 Samples

Download data: GPR

(Submitter supplied) Environmental stress contributes to the outcome of infection by impacting both microbial virulence and host susceptibility to infection. Thermal processing, commonly used for decontamination of poultry in the food industry, may elicit sublethal stress on resistant serovars of Salmonella. We employed traditional heat shock temperatures (42 and 48ºC), similar to avian body temperature and poultry processing conditions, to study gene expression of Salmonella enterica serovar Typhimurium. more...

Organism:

Salmonella enterica subsp. enterica serovar Typhimurium; Salmonella enterica subsp. enterica serovar Typhimurium str. LT2

Type:

Expression profiling by array

Platform:

GPL9181

12 Samples

Download data: GPR

(Submitter supplied) This RNA-seq analysis mainly examined the global effect of stringent resonse in E. amylovora under the T3SS-inducing condition. The (p)ppGpp mutant showed differential expression of more than 30% genes in the genome, which include significant down-regulation of T3SS genes and gene related to motiliey. On the other hand, genes involved in amino acid biosynthesis, translation, SOS response, DNA replication, chromosome segregation, as well as nucleotide metabolism, fatty acid and lipid biosynthesis were significantly up-regulated in (p)ppGpp mutant. more...

Organism:

Erwinia amylovora

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26279

6 Samples

Download data: TXT

(Submitter supplied) This RNA-seq analysis examined the global effect of CsrA and its non-coding small RNA (ncsRNA) csrB in E. amylovora under the T3SS-inducing condition. The csrA mutant showed differential expression of more than 20% genes in the genome, which include significant down-regulation of T3SS genes and those required for cell growth and viability. On the other hand, the csrB mutant exhibited significant up-regulation of most major virulence genes, suggesting antagonistic effect of csrB on CsrA targets.

Organism:

Erwinia amylovora

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26279

9 Samples

Download data: TXT

(Submitter supplied) Culture was split into halves and 500 uM dipyridyl was added to one half. Samples were collected after the indicated times. Groups of assays that are related as part of a time series. Keywords: time_series_design

Organism:

Salmonella enterica subsp. enterica serovar Typhimurium

Type:

Expression profiling by array

Platform:

GPL3048

6 Samples

Download data