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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-9-4
pubmed:abstractText
The dehydration responsive element binding protein 2 (DREB2) subgroup belongs to the plant-specific APETALA2/ethylene-responsive element binding factor (AP2/ERF) family of transcription factors. We have characterized cDNA encoding Arabidopsis thaliana DREB2C, which is induced by mild heat stress. Both an electrophoretic mobility shift assay (EMSA) and a yeast one-hybrid assay revealed that DREB2C(145-528) was able to form a complex with the dehydration responsive element/C-repeat (DRE/CRT; A/GCCGAC) motif. A trans-activating ability test in yeast demonstrated that DREB2C could effectively function as a trans-activator. Constitutive expression of DREB2C under the control of the cauliflower mosaic virus (CaMV) 35S promoter led to enhanced thermotolerance in transgenic lines of Arabidopsis. Microarray and RT-PCR analyses of transgenic plants revealed that DREB2C regulates expression of several heat stress-inducible genes that contain DRE/CRT elements in their promoters. From these data, we deduced that DREB2C is a regulator of heat stress tolerance in Arabidopsis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
19
pubmed:volume
362
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
431-6
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Over-expression of the Arabidopsis DRE/CRT-binding transcription factor DREB2C enhances thermotolerance.
pubmed:affiliation
Division of Applied Life Science (BK21), Environmental Biotechnology National Core Research Center and PMBBRC, Gyeongsang National University, Jinju 660-701, Republic of Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't