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Series GSE6993 Query DataSets for GSE6993
Status Public on Feb 02, 2008
Title Barley low temperature stress
Organism Hordeum vulgare
Experiment type Expression profiling by array
Summary In this study we used the Affymetrix Barley 1 GeneChip to investigate transcriptome responses of barley cv. Morex to low temperature, including triplicated measurements of cold, freeze/thaw cycles and de-acclimation over 33 days.
Keywords: stress response
Overall design Plants were grown at 20ºC for seven days and subject to a symmetrical cycle of acclimation, cold, freeze-thaw, and deacclimation. Chilling began by decreasing the temperature overnight from 20ºC to 4ºC at a rate of 1.3ºC•h-1 and maintaining temperatures of 4 ºC in the day and 2ºC at night for 5 days. Freeze-thaw cycling lasted 12 days with day temperatures of 4ºC and night temperatures gradually decreasing from -2ºC the first night to -4ºC for three nights and -10ºC for four nights, then recovering to -4ºC for three nights and -2ºC for one night. This treatment was designed to allow daily freeze-thaw cycling and protein synthesis. Chilling conditions (4ºC day, 2ºC night) were resumed for five days, followed by deacclimation with increasing temperature to 20ºC overnight and maintaining for three days. Sampling was done at four different times, each at the 11th hour of light to avoid circadian effects: 1) before chilling treatment, 2) five days after initiation of chilling treatment, 3) eight days into freeze-thaw treatment and 4) three days into de-acclimation.
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Submission date Feb 08, 2007
Last update date Mar 16, 2012
Contact name Livia Tommasini
Phone 951 827 3808
Fax 951 827 4437
Organization name University of California, Riverside
Department Botany and Plant Science
Lab Tim Close
Street address 2150 Batchelor Hall
City Riverside
State/province CA
ZIP/Postal code 92521-0124
Country USA
Platforms (1)
GPL1340 [Barley1] Affymetrix Barley Genome Array
Samples (12)
GSM161196 low temperature control rep1
GSM161198 low temperature control rep2
GSM161199 low temperature control rep3
BioProject PRJNA99269

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Supplementary file Size Download File type/resource
GSE6993_RAW.tar 86.0 Mb (http)(custom) TAR (of CEL, CHP)
Processed data included within Sample table

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