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GSE42415
Arabidopsis thaliana
12 Downloadable Samples
Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Aims: To determine the changes in the Arabidopsis axillary bud transcriptome in response to changes in the red light (R) to far red light (FR) ratio (R:FR).
Publication Title
Abscisic acid regulates axillary bud outgrowth responses to the ratio of red to far-red light.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Arabidopsis thaliana
- 9 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
The cucumber mosaic virus (CMV) 2b counter-defense protein disrupts plant antiviral mechanisms mediated by RNA silencing and salicylic acid (SA). Using NASC ATH-1 microarrays to investigate defensive gene expression in 2b-transgenic Arabidopsis thaliana plants we found that, surprisingly, 2b inhibited expression of few SA-regulated genes and in some instances enhanced the effect of SA on certain genes. Strikingly, the 2b protein inhibited changes in the expression of 90% of genes regulated by jasmonic acid (NASCARRAYS-415: Lewsey et al. Molec. Plant-Microbe Interact. vol. 23, in press). We will extend this work to understand the effects of the 2b protein on plant gene expression during an authentic viral infection. By comparing the effects on the transcriptome of infection by wild-type CMV and the 2b gene deletion mutant, CMV2b, we will reveal not only the influence of the 2b protein but also the effects of its interactions with other viral gene products (and the process of infection itself), on the host transcriptome.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 83 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
To assess natural variation of downstream auxin responses we subjected 7 different arabidopsis ecotypes to a time course of auxin treatments. 7d-old seedlings grown in liquid culture have been treated for 0, 30 min, 1h and 3h with 1 M IAA.
Publication Title
Natural variation of transcriptional auxin response networks in Arabidopsis thaliana.
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 70 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Our aim is to identify circadian transcripts that are co-regulated with [Ca2+]cyt, with the eventual goal of identifying genetic regulators and targets for circadian oscillations of [Ca2+]cyt. We have identified two conditions in which [Ca2+]cyt behaves differently to other circadian outputs. 1. Treatment of plants with nicotinamide, a metabolic inhibitor of ADPR cyclase, abolishes the circadian oscillations of [Ca 2+]cyt. However, leaf movement, CCA1, LHY, TOC1 and CAB transcript abundance and CAB promoter activity are all rhythmic albeit with a longer period (Dodd et al., 2007). 2. The toc1-1 mutant, which shortens the circadian period of all other rhythms tested, has no effect on the period of [Ca2+]cyt oscillations (Xu et al., 2007). We will measure the circadian regulation of transcript abundance in wild type (C24), toc1-1 and nicotinamide (C24)-treated plants.
Publication Title
Correct biological timing in Arabidopsis requires multiple light-signaling pathways.
Sample Metadata Fields
Specimen part, Treatment, Time
View Samples- Arabidopsis thaliana
- 64 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
AtGenExpress: A multinational coordinated effort to uncover the transcriptome of the multicellular model organism Arabidopsis thaliana.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 59 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
AtGenExpress: A multinational coordinated effort to uncover the transcriptome of the multicellular model organism Arabidopsis thaliana.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 48 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
AtGenExpress: A multinational coordinated effort to uncover the transcriptome of the multicellular model organism Arabidopsis thaliana
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 48 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
AtGenExpress: A multinational coordinated effort to uncover the transcriptome of the multicellular model organism Arabidopsis thaliana (Hybridisations done at NASC).
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 40 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
AtGenExpress: A multinational coordinated effort to uncover the transcriptome of the multicellular model organism Arabidopsis thaliana.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 42 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
AtGenExpress: A multinational coordinated effort to uncover the transcriptome of the multicellular model organism Arabidopsis thaliana (Hybridisations done at NASC)
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples