GEO DataSets

(Submitter supplied) Exploiting the symbiotic interaction between crops and nitrogen-fixing bacteria is a simple and ecological solution to promote plants growth in prospective extraterrestrial human outposts. In this study, we investigated the adaptation of the legume symbiont Paraburkholderia phymatum to simulated microgravity (s0-g) at the transcriptome level by performing an RNA-Seq analysis. The results revealed a drastic effect on gene expression, with roughly 23 % of P. more...

Organism:

Paraburkholderia phymatum STM815

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22728

6 Samples

Download data: TXT

(Submitter supplied) Paraburkholderia phymatum belongs to the β-subclass of proteobacteria. It has recently been shown to be able to nodulate and fix nitrogen in symbiosis with several mimosoid and papillionoid legumes. In contrast to symbiosis of legumes with α-proteobacteria, very little is known about the molecular determinants underlying the successful establishment of this mutualistic relationship with β-proteobacteria. more...

Organism:

Paraburkholderia phymatum STM815

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22728

9 Samples

Download data: TXT

(Submitter supplied) Paraburkholderia phymatum STM815 is a nitrogen-fixing endosymbiont that forms root nodules on the agriculturally important Phaseolus vulgaris and other host plants. We previously showed that the nodules induced by a STM815 mutant of the gene encoding the master regulator of nitrogen fixation NifA showed no nitrogenase activity (Fix-) and increased in number compared to P. vul-garis plants infected with the wild-type strain. more...

Organism:

Phaseolus vulgaris; Paraburkholderia phymatum STM815

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30237

4 Samples

Download data: TXT

(Submitter supplied) RpoN (σ54) is the key sigma factor for the regulation of transcription of nitrogen fixation genes in diazotrophic bacteria, which include alpha- and beta-rhizobia. Our previous studies showed that a rpoN mutant of the beta-rhizobial strain Paraburkholderia phymatum formed root nodules on Phaseolus vulgaris that were unable to reduce atmospheric nitrogen into ammonia. In an effort to further characterize the RpoN regulon of P. more...

Organism:

Paraburkholderia phymatum STM815

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22728

4 Samples

Download data: TXT

(Submitter supplied) Astronauts have been previously shown to exhibit decreased salivary lysozyme and increased dental calculus and gingival inflammation in response to space flight, host factors that could contribute to oral diseases such as caries and periodontitis. However, the specific physiological response of caries-causing bacteria such as Streptococcus mutans to space flight and/or ground-based simulated microgravity has not been extensively investigated. more...

Organism:

Streptococcus mutans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21140

6 Samples

Download data: TXT

(Submitter supplied) Serratia marcescens is a bacterium frequently found in the environment, but over the last several decades it has evolved into a concerning clinical pathogen, causing fatal bacteremia. To establish such infections, pathogens require specific nutrients; one very limited but essential nutrient is iron. We sought to characterize the iron acquisition systems in S. marcescens isolate UMH9, which was recovered from a clinical bloodstream infection. more...

Organism:

Serratia marcescens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28109

4 Samples

Download data: XLSX

(Submitter supplied) Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goals of this study are to investigate NGS-derived rice leaf transcriptome profiling (RNA-seq) exposed to green rice leafhopper (GRH) and validated RNA-Seq results using quantitative reverse transcription polymerase chain reaction (qRT–PCR). Methods: Rice leaf mRNA profiles of 21-day-old wild-type (WT) and Near Isogenic Line (NIL) rice were generated by deep sequencing, in triplicate, using Illumina’s HiSeq™ 4000 Sequencing System. more...

Organism:

Oryza sativa; Oryza sativa Japonica Group

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL21812 GPL23013

4 Samples

Download data: GTF, TAB, TXT, XLS

(Submitter supplied) RNA-seq differential gene expression profiling of Corynebacterium pseudotuberculosis under iron limitation. We use two C. pseudotuberculosis strains, a ciuA Cp13 mutant and its parental wild type T1 strain to quantify the relative gene expression of these strains in cultures with low iron availability. The ciuA Cp13 mutant is deficient for an operon which encodes a iron siderophore uptake system. The Cp13 mutant also showed reduced virulence in CLA infection models. more...

Organism:

Corynebacterium pseudotuberculosis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24971

14 Samples

Download data: TXT

(Submitter supplied) The genome X genome interactions between rhizobium and plant in the early interaction phase was evaluated using RNA-sequencing

Organism:

Sinorhizobium meliloti

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28622

58 Samples

Download data: JSON, TSV

(Submitter supplied) A. baumannii ATCC 17978 cells were incubated under iron replete (mueller-hinton) and iron limiting (MH + 200 µM 2,2'-dipyridyl) conditions, total RNA was extracted when cultures reached OD600=0.7.

Organism:

Acinetobacter baumannii

Type:

Expression profiling by array

Platform:

GPL11113

4 Samples

Download data: TXT

(Submitter supplied) Arctic Mesorhizobium strain N33 was isolated from nodules of the Oxytropis arctobia in Canada’s eastern Arctic. This symbiotic bacterium can grow from 0 to 30°C, is one of the best known cold-adapted rhizobia, and can fix nitrogen at ~10°C. Here, the key molecular mechanisms of cold adaptation were investigated by determining changes in transcript profiles when cells were treated under eight different temperature conditions, including both sustained and transient cold treatments compared with cells grown at room temperature.

Organism:

Mesorhizobium sp. N33

Type:

Expression profiling by array

Platform:

GPL19113

42 Samples

Download data: GPR

(Submitter supplied) In space, multiple unique environmental factors, particularly microgravity and space radiation, pose constant threat to the astronaut’s health. To gain insight into the role of miRNAs and lncRNAs in response to radiation and microgravity, we analyzed RNA expression profiles in human lymphoblastoid TK6 cells incubated for 24 h in static condition or in rotating condition to stimulate microgravity in space after 2 Gy γ-ray irradiation. more...

Organism:

Homo sapiens

Type:

Expression profiling by array; Non-coding RNA profiling by array

Platform:

GPL17586

4 Samples

Download data: CEL, CHP

(Submitter supplied) Respiration deficient S. aureus small colony variants (SCVs) frequently cause persistent infections, which necessitates they acquire iron, yet how SCVs obtain iron remains unknown. To address this, we created a stable hemB mutant in S. aureus USA300 strain LAC. The hemB SCV utilized exogenously supplied heme but was attenuated for growth under conditions of iron starvation. RNA-seq showed that both WT S. more...

Organism:

Staphylococcus aureus subsp. aureus USA300

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30628

15 Samples

Download data: XLSX