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Title: Transcription profiling of Arabidopsis plants treated with hydrogen peroxide to investigate responses to oxidative stress      
dateReleased:
05-04-2007
description:
Oxidative stress, resulting from an imbalance in the accumulation and removal of reactive oxygen species such as hydrogen peroxide (H2O2), is a challenge faced by all aerobic organisms. In plants, exposure to various abiotic and biotic stresses results in accumulation of H2O2 and oxidative stress. Increasing evidence indicates that H2O2 functions as a stress signal in plants, mediating adaptive responses to various stresses. To analyze cellular responses to H2O2, we have undertaken a large-scale analysis of the Arabidopsis transcriptome during oxidative stress. Using cDNA microarray technology, we identified 175 non-redundant expressed sequence tags that are regulated by H2O2. Of these, 113 are induced and 62 are repressed by H2O2. A substantial proportion of these expressed sequence tags have predicted functions in cell rescue and defense processes. RNA-blot analyses of selected genes were used to verify the microarray data and extend them to demonstrate that other stresses such as wilting, UV irradiation, and elicitor challenge also induce the expression of many of these genes, both independently of, and, in some cases, via H2O2
privacy:
not applicable
aggregation:
instance of dataset
ID:
E-SMDB-4011
refinement:
raw
dateSubmitted:
04-18-2007
keywords:
functional genomics
dateModified:
06-04-2014
availability:
available
types:
gene expression
name:
Arabidopsis thaliana
ID:
A-SMDB-258
name:
SMD Arabidopsis thaliana Array MSU2_06-00
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-SMDB-4011/E-SMDB-4011.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-SMDB-4011/E-SMDB-4011.processed.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
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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