GEO DataSets

(Submitter supplied) Arabidopsis thaliana (Col-0) seedlings were grown on vertically oriented agar plates and subjected to hypoxia (0.2% oxygen, 99.8% nitrogen) for 30 to 240 minutes.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

5 Samples

Download data: CEL

(Submitter supplied) Screening of cDNA expression libraries with labelled calmodulin (CaM) as a probe resulted in the isolation of cDNA encoding proteins designated CAMTA (for calmodulin-binding transcription activators). The Arabidopsis genome contains 6 members of this protein family (AtCAMTA1-6) all containing in addition to a defined CaM-binding domain a DNA-binding domain and ankyrin-repeat motifs. RT-PCR analysis revealed that all 6 genes are expressed in all organ throughout plant development. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

5 Samples

Download data: CEL

(Submitter supplied) Background: Since chemical assays of soil nutrients are unreliable the UK horticultural and agricultural industries routinely apply large amounts of inorganic fertiliser to maintain crop yields and quality. Excessive fertiliser applications are both costly and can lead to unnecessary pollution. A possible solution to this problem is to use sensor (GM or non-GM) technologies that exploit the changes in plant gene expression profiles under incipient nutrient deficiency. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

4 Samples

Download data: CEL

(Submitter supplied) Aim To identify genes specifically involved in the storage reserve mobilisation programme in Arabidopsis. Background During germination and early post-germinative growth in Arabidopsis seed storage reserves are broken down to provide energy and nutrients for the developing seedling. Genes encoding enzymes involved in the mobilisation of both storage lipid and protein are expressed strongly 1-2 days following imbibition and then fall to very low levels. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

4 Samples

Download data: CEL

(Submitter supplied) The acclimation of plants to environmental factors (light/temperature/nutrient availability) plays a crucial role in determining their tolerance to stress their ability to compete with other plants and the efficiency with which external inputs are used for growth and productivity. Some of the clearest responses involve the major modifications in the composition of the photosynthetic apparatus in response to light intensity. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

6 Samples

Download data: CEL

(Submitter supplied) The aim of the experiment is to study the pattern of genes expression involved in defense to heavy metals and their transport and distribution within plant organs. Most of the plant species inhibits heavy metals entrance to the roots and their transport and accumulation to/in above ground organs after toxic ions penetrate roots. Some species of Brassicacea differ in the pattern of defense gene expression in the roots in a way that allow for greater transport of toxic ions to the above ground part. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

6 Samples

Download data: CEL

(Submitter supplied) SKS mutant (snakeskin) vs wildtype Keywords: strain_or_line_design

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

2 Samples

Download data: CEL

(Submitter supplied) Nitric oxide (NO.) is a well-established signal in mammalian cells regulating e.g. smooth muscle tone, neurotransmission and apoptosis. NO interacts with superoxide (O2-) to derive the highly reactive peroxynitrite (ONOO-) radical leading to the generation of lipid hydroxy-peroxides (ROO.) and cell death. Thus the recent reports implicating of .NO in the Hypersensitive Response (HR) a form of programmed cell death elicited by pathogens in plantsis suggestive of parallel roles in animals and plants. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

2 Samples

Download data: CEL

(Submitter supplied) Aim: To identify regulatory factors that control: (1) chloroplast protein importand (2) chloroplast-to-nucleus signalling. This project is a joint proposal from the Jarvis lab which is interested in chloroplast protein import [1] and the Moller lab which is interested in plastid-to-nucleus signalling [2]. Background: The majority of chloroplast proteins are encoded in the nucleus and imported post-translationally into chloroplasts. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

3 Samples

Download data: CEL

(Submitter supplied) Background: Since chemical assays of soil nutrients are unreliable the UK horticultural and agricultural industries routinely apply large amounts of inorganic fertiliser to maintain crop yields and quality. Excessive fertiliser applications are both costly and can lead to unnecessary pollution. A possible solution to this problem is to use sensor (GM or non-GM) technologies that exploit the changes in plant gene expression profiles under incipient nutrient deficiency. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

4 Samples

Download data: CEL

(Submitter supplied) Microarray expression profiles of wild-type, ago1-10, ago1-11, and dcl1-9 Arabidopsis thaliana ec. Landsberg erecta seedling at 9, 21, and 35 days after germination. Keywords: mutant response

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL71

37 Samples

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(Submitter supplied) Histone acetylation is involved in the regulation of gene expression in plants and eukaryotes. Histone deacetylases (HDACs) are enzymes that catalyze the removal of acetyl groups from histones, which is associated with the repression of gene expression. To study the role of histone acetylation in the regulation of gene expression during seed germination, trichostatin A (TSA), a specific inhibitor of histone deacetylase, was used to treat imbibing Arabidopsis thaliana seeds. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platforms:

GPL198 GPL71

7 Samples

Download data

(Submitter supplied) Histone acetylation is involved in the regulation of gene expression in plants and eukaryotes. Histone deacetylases (HDACs) are enzymes that catalyze the removal of acetyl groups from histones, which is associated with the repression of gene expression. To study the role of histone acetylation in the regulation of gene expression during seed germination, trichostatin A (TSA), a specific inhibitor of histone deacetylase, was used to treat imbibing Arabidopsis thaliana seeds. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Dataset:

GDS2559

Platform:

GPL71

4 Samples

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(Submitter supplied) Analysis of gene expression in Ws-0 lec1 (LEAFY COTYLEDON1) mutant Arabidopsis thaliana. Developmental stages studied includes 24-Hr post-fertilization, globular stage, cotyledon stage, mature green stage, post-mature green stage, and seedlings. Microarray Methods: Total RNA was extracted using the Hot Borate Method [Stones et. al. PNAS vol 98 no 20: 11806-11811 (2001)]. Biotinylated cRNA were prepared using the ENZO BioArray High Yield RNA Transcript Labeling Kit (Farmingdale, NY). more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platforms:

GPL71 GPL198

30 Samples

Download data: CEL

(Submitter supplied) This series contain all stages Arabidopsis plant development. Stages of development includes unfertilized ovule, 24-Hr post-fertilization seed, globular stage seed, cotyledon stage seed, mature green seed, post-mature green seed, post-germination seedling, rosette leaf, root, stem, and floral bud. Keywords = Arabidopsis Keywords = Seed development Keywords = seedling Keywords = germination Keywords = leaf Keywords = root Keywords = stem Keywords = floral bud Keywords: ordered

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platforms:

GPL71 GPL198

30 Samples

Download data: CEL

(Submitter supplied) Arabidopsis seedlings (Col-0) were grown in suspension in half-strength MS medium with agitation at ~100 rpm at ~22 C under ~50 microeinsteins m-2s-1 cool white fluorescent continuous illumination as described by (Xiao et al., Plant Physiol. 2002 Dec;130(4):2118-28). Seedlings were treated at 10-12 days by addition of freshly made IAA (0.1 or 1.0uM) to each flask, and harvested after a 1 or 3 hour incubation. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Datasets:

GDS668 GDS671

Platforms:

GPL198 GPL71

12 Samples

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(Submitter supplied) T2 progenies of two transgenic lines overexpressing ERF transcription factor WIN1 were grown on soil in parallel under identical conditions. mRNA was extracted from pooled leaves from multiple plants of each line for the microarray experiement. Plants derived from two lines were used in this experiment: line 13, a "medium" overexpressor, and line 22, a strong overexpressor. Control mRNA was obtained from pooled control plants transformed using an empty binary vector. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Dataset:

GDS652

Platform:

GPL71

3 Samples

Download data: CEL, DAT, EXP

(Submitter supplied) Wild type and yda-2 plants were germinated and grown on commercial potting mix in walk-in chambers with constant illumination (~150 micromoles per square meter per second) at 22oC. The aerial parts of the plants were harvested at the rosette stage, prior to bolting. Total RNA was prepared using Trizol reagent (Invitrogen) with the additional steps recommended for polysaccharide-rich tissues. Hybridization probes for the GeneChip AtGenome1 microarrays (Affymetrix) were prepared from 20 mg total RNA. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Dataset:

GDS517

Platform:

GPL71

8 Samples

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(Submitter supplied) Arabiposis plants with conbinations of different FRIGIDA (FRI) and FLOWERING LOCUS C (FLC) alleles grown in short days (9L:15D) for 30 days at 21°C, then shifted to long days (16L:8D). Genotypes: Columbia wild type (Col-0): fri FLC Columbia with introgressed FRI from Sf-2: FRI FLC Columbia with introgressed FRI and deleted FLC (flc-3): FRI flc Columbia with deleted FLC (flc-3): fri flc Time points: 0, 2, and 4 days after shift to long days Keywords = flowering Keywords: time-course

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Dataset:

GDS451

Platform:

GPL71

12 Samples

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(Submitter supplied) Relative expression data from germinating seeds of Columbia (wt), the pkl mutant (pkl), Columbia plus uniconazole-P (Uwt) and the pkl-mutant plus uniconazole-P (Upkl). Each experimental condition (wt, pkl, Uwt and Upkl) has four true replicates for a total of 16 chips. Keywords = CHD3 Keywords = chromatin remodeling factors Keywords = developmental transition Keywords = embryo Keywords = seed germination Keywords: other

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Dataset:

GDS378

Platform:

GPL71

16 Samples

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