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Title: Time-course expression analysis of the low pH (pH 4.6) response in Arabidopsis whole roots      
dateReleased:
11-23-2011
description:
We preformed at time-course of the expression of whole Arabidopsis roots for 30 minutes, 1H, 3H, 6H 12H, 24H, and 48H after transfer to low pH (pH 4.6). Controls at the standard pH (pH 5.7) were included at each time-point. We combined these data with 13 other datasests and performed a meta-analysis to ask whether a universal stress response exists in Arabidopsis roots. Stress responses in plants are tightly coordinated with developmental processes, but the interaction between these pathways is poorly understood. Here we use genome-wide assays at high spatial and temporal resolution to understand the processes that lnk development and stress in the Arabidopsis root. Our meta-analysis finds little evidence for a universal stress response. Common stress responses appear to exists and, analagous to animal systems, many of them show cell-type specificity, suggesting a convergent evolutionary theme in multicellular organisms. Common stress responses may be mediated by cell identity regulators, as mutations in these genes resulted in altered responses to stress. Our results reveal surprising linkages between stress and development at cellular resolution, and show the power of multiple genome-wide datasets to elucidate biological processes. 28 samples: 7 time points, with two replicates for each timepoint for both the control (pH 5.7) and treatment (pH 4.6)
privacy:
not applicable
aggregation:
instance of dataset
ID:
E-GEOD-30097
refinement:
raw
alternateIdentifiers:
30097
keywords:
functional genomics
dateModified:
12-06-2011
availability:
available
types:
gene expression
name:
Arabidopsis thaliana
ID:
A-AFFY-2
name:
Affymetrix GeneChip Arabidopsis Genome [ATH1-121501]
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-30097/E-GEOD-30097.raw.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-30097/E-GEOD-30097.processed.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
accessURL: https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE30097
storedIn:
Gene Expression Omnibus
qualifier:
not compressed
format:
HTML
accessType:
landing page
primary:
true
authentication:
none
authorization:
none
abbreviation:
EBI
homePage: http://www.ebi.ac.uk/
ID:
SCR:004727
name:
European Bioinformatics Institute
homePage: https://www.ebi.ac.uk/arrayexpress/
ID:
SCR:002964
name:
ArrayExpress

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