Journal
PLANT AND CELL PHYSIOLOGY
Volume 45, Issue 3, Pages 346-350Publisher
OXFORD UNIV PRESS
DOI: 10.1093/pcp/pch037
Keywords
drought tolerance; low-temperature stress tolerance; stress-inducible promoter; transgenic tobacco; transcription factor
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The transcription factor DREBIA/CBF3 specifically interacts with the dehydration responsive element (DRE/CRT) and induces expression of genes involved in environmental stress tolerance in Arabidopsis. Overexpression of DREB1A improved drought- and low-temperature stress tolerance in tobacco. The stress-inducible rd29A promoter minimized the negative effects on the plant growth in tobacco. Furthermore, we detected overexpression of stress-inducible target genes of DREB1A in tobacco. These results indicate that a combination of the rd29A promoter and DREB1A is useful for improvement of various kinds of transgenic plants that are tolerant to environmental stress.
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