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Plant and Cell Physiology, 2004, Vol. 45, No. 3 346-350
© 2004 Oxford University Press

Short Communication

A Combination of the Arabidopsis DREB1A Gene and Stress-Inducible rd29A Promoter Improved Drought- and Low-Temperature Stress Tolerance in Tobacco by Gene Transfer

Mie Kasuga1, Setsuko Miura1, Kazuo Shinozaki2,3 and Kazuko Yamaguchi-Shinozaki1,3,4

1 Biological Resources Division, Japan International Research Center for Agricultural Sciences (JIRCAS), 1-1 Ohwashi, Tsukuba, Ibaraki, 305-8686 Japan
2 Laboratory of Plant Molecular Biology, RIKEN Tsukuba Institute, 3-1-1 Koyadai, Tsukuba, Ibaraki, 305-0074 Japan
3 Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Japan

Abstract

The transcription factor DREB1A/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.

Footnotes

4 Corresponding author: E-mail, kazukoys{at}jircas.affrc.go.jp; Fax, +81-29-838-6643.


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