GEO DataSets

(Submitter supplied) Transcriptional regulation is a key aspect of environmental stress responses. Heat stress (HS) induces transcriptional memory that allows plants to respond more efficiently to a recurrent HS. In light of more frequent temperature extremes due to climate change, improving heat tolerance in crops is an important breeding goal. However, not all HS-inducible genes show sustained induction/transcriptional memory and it is unclear what distinguishes memory and non-memory genes. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19580

24 Samples

Download data: BW

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

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19580

37 Samples

Download data: BW

(Submitter supplied) Transcriptional regulation is a key aspect of environmental stress responses. Heat stress (HS) induces transcriptional memory that allows plants to respond more efficiently to a recurrent HS. In light of more frequent temperature extremes due to climate change, improving heat tolerance in crops is an important breeding goal. However, not all HS-inducible genes show sustained induction/transcriptional memory and it is unclear what distinguishes memory and non-memory genes. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19580

13 Samples

Download data: BW

(Submitter supplied) Adaptive plasticity in stress responses is a key element of plant survival strategies. For instance, moderate heat stress (HS) primes a plant to acquire thermotolerance, which allows subsequent survival of more severe HS conditions. Acquired thermotolerance is actively maintained over several days (HS memory) and involves the sustained induction of memory-related genes. We find FORGETTER3/ HEAT SHOCK TRANSCRIPTION FACTOR A3 (FGT3/HSFA3) to be specifically required for physiological HS memory and maintaining high memory-gene expression during the days following a HS exposure. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24025

48 Samples

Download data: TXT

(Submitter supplied) The transcript levels of 560 genes were decreased (less than two-fold), while those of 312 genes were increased (more than two-fold) in the KO-HsfA1d/A1e plants compared with the wild-type plants. The transcript levels of HsfA2, HsfA7a, HsfA7b, HsfB1, and HsfB2a were down-regulated in the KO-HsfA1d/A1e

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

2 Samples

Download data: CEL

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

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platforms:

GPL7299 GPL6177

14 Samples

Download data: TXT

(Submitter supplied) To identify biological function of HSFB transcriptional repressor, we subjected hsfb1 hsfb2b double mutant and wild-type Arabidopsis plant under heat condition (32 Celsius degree) and did microarray experiment. The microarray experiment under non-heated condition is described in GSE14702. We found expression of many heat-shock proteins (HSPs) is not fully enhanced in the double mutant when compared to wild-type plant. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL7299

4 Samples

Download data: TXT

(Submitter supplied) Biological and molecular function of Arabidopsis HSFB transcription factors was studied.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL6177

10 Samples

Download data: TXT

(Submitter supplied) HSFA1s are a gene family of HSFA1 with four members, HSFA1a, HSFA1b, HSFA1d, and HSFA1e. HSFA1s are the master regulators of heat shock response. As a part of the heat shock response, HSFA2 can prolong the heat shock response and amplify the heat shock response in response to repeat heat shock. To identify the heat-shock-responsive genes differentially regulated by HSFA1s and HSFA2, we compared the transcriptomic differences of plants containing only constitutively expressed HSFA1s or HSFA2 after heat stress.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

16 Samples

Download data: CEL

(Submitter supplied) Anoxia induces several heat shock proteins and a heat pre-treatment can acclimatize Arabidopsis seedlings to a subsequent anoxic treatment. In this work we analyzed the response of Arabidopsis seedlings to anoxia, heat and a combined heat+anoxia stress. A significant overlapping between the anoxic and heat shock responses has been observed by whole-genome microarray analysis.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

8 Samples

Download data: CEL

(Submitter supplied) Plants can be primed by a stress cue to mount a faster and stronger activation of defense mechanisms upon a subsequent stress. A crucial component of such stress priming is the modified reactivation of genes upon recurring stress, a phenomenon known as transcriptional memory. The transcriptional memory in response to heat stress is not clear at the genome scale. We used microarrays to identify genes that showed transcriptional memory in response to recurring heat stress.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

17 Samples

Download data: CEL

(Submitter supplied) In nature, plants are often exposed to recurring adverse environmental conditions. Acclimation to high temperature stress entails transcriptional responses that are mediated by heat-shock transcription factors (HSFs), and they are primed to better withstand subsequent stress events. This heat stress (HS)-induced transcriptional memory results in more efficient re-induction of transcription upon recurring HS. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28290

36 Samples

Download data: TXT

(Submitter supplied) The expression of heat-shock proteins (Hsps) induced by a non-lethal heat treatment confers acquired thermotolerance (AT) to organisms against a subsequent challenge of otherwise lethal temperature. After stress signal lifted, AT gradually decayed with the decline of Hsps during recovery period. The duration of AT may be critical for sessile organisms, such as plants, to survive repeated heat stress in the environment. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Dataset:

GDS2564

Platform:

GPL198

12 Samples

Download data

Analysis of HsfA2 null mutant following acclimative heat treatment at 37 degrees C for 1 hour, recovery at 24 degrees C for 2 days, and heat shock at 44 degrees C for 45 minutes. Results provide insight into role of HsfA2 in acquired thermotolerance induced by non-lethal heat treatment.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array, count, 2 genotype/variation, 3 protocol sets

Platform:

GPL198

Series:

GSE4760

12 Samples

Download data

(Submitter supplied) Characterization of the impact of TT2 or MYB5 overexpression on gene expression. Col 0 plants were compared to 35S::TT2 and 35S::MYB5 overexpressors in control conditions

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19580

8 Samples

Download data: XLSX

(Submitter supplied) Virus infection and over expression of protein in cytosol induce a subset of HSP70s. We named this response the Cytosolic Protein Response (CPR) and have been investigating it in the context of a parallel mechanism in the soluble cytosol with the UPR, and as a subcomponent of the larger HS response. This experiment was carried out to study the transcriptional aspect of CPR. In this analysis, we have triggered CPR by infiltrating proline analogue, L-azetidine-2-carboxylic acid (AZC) into Arabidopsis mature leaves. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

22 Samples

Download data: CEL

(Submitter supplied) Plants are sessile organisms and therefore must sense and respond to changes of their surrounding conditions such as ambient temperature, which vary diurnally and seasonally. It is not yet clear how plants sense temperature and integrate this information into their development. We have previously shown that H2A.Z-nucleosomes are evicted in response to warmer temperatures. It is not clear however, whether the link between transcriptional responsiveness and changes in H2A.Z binding in context of temperature shifts is a global trend that can be seen throughout the genome, or the phenomenon is specific to a specialised set of temperature-responsive genes. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17311

2 Samples

Download data: TXT

(Submitter supplied) Plants are sessile organisms and therefore must sense and respond to changes of their surrounding conditions such as ambient temperature, which vary diurnally and seasonally. It is not yet clear how plants sense temperature and integrate this information into their development. We have previously shown that H2A.Z-nucleosomes are evicted in response to warmer temperatures. It is not clear however, whether the link between transcriptional responsiveness and changes in H2A.Z binding in context of temperature shifts is a global trend that can be seen throughout the genome, or the phenomenon is specific to a specialised set of temperature-responsive genes. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19580

14 Samples

Download data: TXT

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

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL19580 GPL13222 GPL17311

108 Samples

Download data: TXT

(Submitter supplied) Plants are sessile organisms and therefore must sense and respond to changes of their surrounding conditions such as ambient temperature, which vary diurnally and seasonally. It is not yet clear how plants sense temperature and integrate this information into their development. We have previously shown that H2A.Z-nucleosomes are evicted in response to warmer temperatures. It is not clear however, whether the link between transcriptional responsiveness and changes in H2A.Z binding in context of temperature shifts is a global trend that can be seen throughout the genome, or the phenomenon is specific to a specialised set of temperature-responsive genes. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL19580 GPL13222

65 Samples

Download data: TXT