GEO DataSets

(Submitter supplied) Large-scale identification of transcripts with large cross-genotype differences in abundance provides a genome-wide approach to identify natural variation in gene function. Transcript profiling was performed in 20 Arabidopsis accessions at dusk, dawn and after a 6h extension of the night. Individual genes with a high variance in transcript abundances across accessions were identified by inspection at each individual time point and by ANOVA across all three time points. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

119 Samples

Download data: CEL

(Submitter supplied) The sid2.2 mutant (Dewdney et al. 2000) with deletion/arrangement in exon 9 is deficient for salicylic acid synthesis. We used Affymetrix microarrays to detail the global programme of gene expression underlying metabolic and cellular changes in the rosettes of the Arabidopsis sid2.2 mutant and wild type grown under strong sulfate limitation.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

6 Samples

Download data: CEL

(Submitter supplied) To comprehensively investigate the effects of glutathione on the gene expression, the microarray analysis was performed in the glutathione-fed wild-type Arabidopsis thaliana. Wild-type Arabidopsis (ecotype Columbia-0) were fed with 1 mM oxidized glutathione (GSSG) and 2 mM reduced glutathione (GSH) for comparison at equal nitrogen equivalents. To examine the effects of glutathione other than nitrogen at equal nitrogen equivalents, plants were fed with 3 mM NH4NO3. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

24 Samples

Download data: CEL

(Submitter supplied) We directed expression of BLUEJAY, JACKDAW and SCARECROW through the UAS promoter in the J0571 line and performed cell sorting followed by microarray experiments to identify differentially expressed genes.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

12 Samples

Download data: CEL

(Submitter supplied) Transciptome profileing analysis of wt, nlp6, nlp7 and nlp6nlp7 before nitrate treatment and after 35 minutes of 25mM nitrate induction. NLP7 (NIN-LIKE-PROTEIN 7) (NLP7) is the major transcriptional factor responsible for the primary nitrate response (PNR), but the role of its closest homologue , NLP6, in nitrogen signaling and the interplay between NLP6 and NLP7 remain to be elucidated. In this study, we show that, like NLP7, nuclear localization of NLP6 via a nuclear retention mechanism is nitrate-dependent, but nucleocytosolic shuttling of both NLP6 and NLP7 is independent of each other. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

24 Samples

Download data: CEL

(Submitter supplied) Plants need to be able to respond to changes quickly due to the inability of a plant to change location. Hormones within the plant signal for these transcriptional changes that will affect the plant's ability to survive. Strigolactone is a plant hormone that was more recently discovered so has a less detailed understanding of what genes it regulates, compared to other plant hormones. First published in Brewer et al 2016, PNAS We used microarrays to determine transcriptional responses in strigolactone mutants and in wild-type plants with various physiological treatment which affect hormone levels over 24 hours.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

21 Samples

Download data: CEL

(Submitter supplied) AS2 encode AS2-domain containing protein and may regulate transcription. AS2 is involved in the determination of axes of leaves of Arabidopsis thaliana. Type IB DNA topoisomerase (TOP1α) gene has genetic interaction with AS1 and AS2 and is involved in repression of leaf polarity genes. To know the gene regulation in the leaf development, expression profile among wild-type and as2 mutant treated with and without 10-hydroxyl substituted camptothecin (10H-CPT), a specific TOP1 inhibitor, were compared

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

4 Samples

Download data: CEL

(Submitter supplied) The red-light regulated transcription factors FHY3 and FAR1 form a key point of light input to the plant circadian clock in positively regulating expression of genes within the central clock. However, the fhy3 mutant shows an additional red light-specific disruption of rhythmicity which is inconsistent with this role. Here we demonstrate that only fhy3 and not far1 mutants show this red specific disruption of rhythmicity. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

8 Samples

Download data: CEL

(Submitter supplied) Brassinosteroids (BRs) are steroid hormones involved in multiple processes of plant growth and development, and the adaptation to the environment. Some of the processes regulated by BRs are meristem activity and stem cell divisions. At the core of the root stem cell niche, it is placed the quiescent center (QC), that act as a cell reservoir. QC cells only trigger their divisions when need to replenish the stem cells, for example, after a DNA damage. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

5 Samples

Download data: CEL

(Submitter supplied) Spaceflight has an impact on growth and development of higher plants at both vegetative stage and reproductive stage. A great deal of information has been available on the vegetative stage in space, but relatively little is known about the influence of spaceflight on plants at the reproductive stage. In this study, we constructed a transgenic Arabidopsis thaliana plants expressing flowering control gene, FLOWERING LOCUS T (FT), together with green fluorescent protein gene(GFP) under control of a heat shock-inducible promoter (HSP17.4), by which we induced FT expression inflight through remote controlling heating shock (HS) treatment. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

16 Samples

Download data: CEL, CHP, XLSX

(Submitter supplied) Transcriptional profiling of hypocotyl comparing wild type with shr mutant. We used Affymetrix ATH1 microarrays to determine the effect of GRAS transcription factor SHORT-ROOT on growth and development of Arabidopsis shoot system (hypocotyl) by global transcriptome analysis and to identify the key players in the regulatory pathway.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

6 Samples

Download data: CEL

(Submitter supplied) The synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) functions as an agronomic weed control herbicide. High concentrations of 2,4-D induce plant growth defects, particularly leaf epinasty and stem curvature. Although the 2,4-D phenotype is associated with ROS production, little is known about ROS-dependent signalling. In this study, by using T-DNA Arabidopsis mutants to silence peroxisomal acyl CoA oxidase 1 (acx1-2), we identified ACX1 as one of the main sources of ROS production and as partly the cause of the epinasty phenotype following the application of 2,4-D. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

24 Samples

Download data: CEL

(Submitter supplied) Autophagy mutants display early yellowing phenotype and major metabolic changes under both ideal and limiting nitrate supplies. We used Affymetrix microarrays to detail the global programme of gene expression underlying metabolic and cellular changes in autophagy mutants and wild type Arabidopsis rosettes grown under both low or high nitrate conditions. Fold changes data between mutants and wild type have been published (www.plantcell.org/cgi/doi/10.1105/tpc.114.124677)

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

16 Samples

Download data: CEL

(Submitter supplied) Expression of genes in Arabidopsis Col-0 and 2 lines of overexpressing StZFP2 (OEEV47 1 and 2) were harvested without wounding (control) and 1h and 6h after wounding

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

18 Samples

Download data: CEL, XLSX

(Submitter supplied) Autophagy involves massive degradation of intracellular components and functions as a conserved system that helps cells to adapt to adverse conditions. In Arabidopsis thaliana, submergence induces the transcription of autophagy-related (ATG) genes and the formation of autophagosomes. To study the role of autophagy during submergence, we performed transcriptome analysis with atg5, an autophagy-defective mutant, under submergence conditions. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

12 Samples

Download data: CEL

(Submitter supplied) We used microarrays to detail the global programme of gene expression underlying root hair development and identified distinct classes of changed genes during this process.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

6 Samples

Download data: CEL, XLSX

(Submitter supplied) To obtain new insights for heterosis mechanisms in Arabidopsis, transcript profiling of arabidopsis F1 hybrid and their parentral lines was obtained from Affymetrix GeneChips ATH array. The microarray analysis exhibited that there were 44 up-regulated and 12 down-regulated genes with more than a 1.5-fold changes in the profiles of F1 hybrid against those of each parent. Gene ontology analyses highlighted up-regulated genes as organic nitrogen-related in the F1 hybrid.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

9 Samples

Download data: CEL, CHP

(Submitter supplied) We found that Arabidopsis plants constitutively expressing OsRR6 exhibit reduced cytokinin sensitivity, adventitious root formation and enhanced anthocyanin accumulation. In addition they are hypersensitive to red, far-red and blue light in hypocotyl growth assay and also flower little early as compared to wild type.Therefore, to identify the downstream pathways affected in the OsRR6 overexpression plants, we performed transcriptome profiling of overexpression line vs wild type using Affymetrix microarray platform.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

4 Samples

Download data: CEL

(Submitter supplied) ● Adjustment to energy starvation is crucial to ensure growth and survival. In Arabidopsis thaliana (Arabidopsis), this process relies in part on the phosphorylation of the circadian clock regulator bZIP63 by SnRK1, a key mediator of responses to low energy. ● We investigated the effects of mutations in bZIP63 on plant carbon (C) metabolism and growth. Results from phenotypic, transcriptomic, and metabolomic analysis of bZIP63 mutants prompted us to investigate the starch accumulation pattern and the expression of genes involved in starch degradation and in the circadian oscillator. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

6 Samples

Download data: CEL

(Submitter supplied) IRT1 is the root high-affinity Fe uptake system. Despite severe Fe deficiency symptoms and reduced Fe levels in the shoots of irt1 mutants, we find that root Fe concentrations are higher in the irt1-2 mutant than in the wild type, unexpectedly. The goal of this experiment was to identify candidate transcripts contributing to the observed alteration in root-to-shoot Fe partitioning of irt1. We analysed gene expression in shoots and roots of the wild type grown under control conditions, the wild type exposed to severe Fe deficiency for 5 d, as well as of the irt1-2 (pam42) mutant grown under control conditions. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

12 Samples

Download data: CEL