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GSE46205
Arabidopsis thaliana
95 Downloadable Samples
Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Cell-type specific transcriptional profiles were generated by FACS (Fluorescence Activated Cell Sorting) sorting of roots that express cell-type specific GFP-reporters. Four different GFP-reporter lines were utilized allowing us to obtain transcriptional profiles for cells in major radial zones of the root. FACS cell populations were isolated from roots grown under standard conditions or roots that had been transfered to media supplemented with 140 mM NaCl for 1 hour, 3 hours, 8 hours, 20 hours, 32 hours and 48 hours.
Publication Title
A spatio-temporal understanding of growth regulation during the salt stress response in Arabidopsis.
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 31 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Transcriptional programs that regulate development are exquisitely controlled in space and time. Elucidating these programs that underlie development is essential to understanding the acquisition of cell and tissue identity. We present microarray expression profiles of a high resolution set of developmental time points within a single Arabidopsis root, and a comprehensive map of nearly all root cell-types. These cell-type specific transcriptional signatures often predict novel cellular functions. A computational pipeline identified dominant expression patterns that demonstrate transcriptional connections between disparate cell types. Dominant expression patterns along the roots longitudinal axis do not strictly correlate with previously defined developmental zones, and in many cases, expression fluctuation along this axis was observed. Both robust co-regulation of gene expression and potential phasing of gene expression were identified between individual roots. Methods that combine these two sets of profiles demonstrate transcriptionally rich and complex programs that define Arabidopsis root development in both space and time.
Publication Title
A high-resolution root spatiotemporal map reveals dominant expression patterns.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 51 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 36 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Cell-type specific transcriptional profiles were generated by FACS (Fluorescence Activated Cell Sorting) sorting of roots that express cell-type specific GFP-reporters. Six different GFP-reporter lines were utilized allowing us to obtain transcriptional profiles for cells in all radial zones of the root. FACS cell populations were isolated from roots grown under standard conditions or roots that had been transfered to media supplemented with 140 mM NaCl for 1 hour.
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 16 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
To gain a genome-scale understanding of the role that developmental processes play in regulating stimulus response, we examined the effect of salt stress on gene expression along the longitudinal axis of the root. Since roots grow from stem cells located near the tip, the position of cells along the longitudinal axis can be used as a proxy for developmental time, with distance from the root tip correlating with increased differentiation. To estimate the role developmental stage plays in regulating salt response, roots were dissected into four longitudinal zones (LZ data set) after transfer to standard or salt media and transcriptionally profiled.
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 16 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
We performed an expression analysis of the response of seedling root tips to 1 hour of treatment with 140mM NaCl using mutants defective in root hair patterning.
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 15 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Cell-type specific transcriptional profiles were generated by FACS (Fluorescence Activated Cell Sorting) sorting of roots that express cell-type specific GFP-reporters. Five different GFP-reporter lines were utilized allowing us to obtain transcriptional profiles for cells in all radial zones of the root. FACS cell populations were isolated from roots grown under standard conditions or roots that had been transfered to -Fe media for 24 hours.
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 16 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
To gain a genome-scale understanding of the role that developmental processes play in regulating stimulus response, we examined the effect of -Fe stress on gene expression along the longitudinal axis of the root. Since roots grow from stem cells located near the tip, the position of cells along the longitudinal axis can be used as a proxy for developmental time, with distance from the root tip correlating with increased differentiation. To estimate the role developmental stage plays in regulating salt response, roots were dissected into four longitudinal zones (LZ data set) after transfer to standard or -Fe media and transcriptionally profiled.
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 14 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
We performed a time course analysis (TC data set) of the response of whole seedling roots to -Fe at 6 time points after transfer (3, 6, 12, 24, 48, and 72 hours).
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples- Arabidopsis thaliana
- 12 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
We performed a time course analysis (TC data set) of the response of whole seedling roots to 140mM NaCl at 5 time points after transfer (30 minutes, 1, 4, 16 and 32 hours).
Publication Title
Cell identity mediates the response of Arabidopsis roots to abiotic stress.
Sample Metadata Fields
No sample metadata fields
View Samples