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Volume 2
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10.3390/plants2040769
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Article

Identification of Chimeric Repressors that Confer Salt and Osmotic Stress Tolerance in Arabidopsis

by
Daisuke Kazama
1,
Masateru Itakura
2,
Takamitsu Kurusu
2,
Nobutaka Mitsuda
3,
Masaru Ohme-Takagi
3,4 and
Yuichi Tada
2,*
1
Graduate School of Bionics, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
2
School of Bioscience and Biotechnology, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
3
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-0053, Japan
4
Institute for Environmental Science and Technology, Saitama University, Saitama-shi, Saitama 338-8570, Japan
*
Author to whom correspondence should be addressed.
Plants 2013, 2(4), 769-785; https://doi.org/10.3390/plants2040769
Submission received: 23 September 2013 / Revised: 9 October 2013 / Accepted: 22 November 2013 / Published: 5 December 2013
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Abstract

We produced transgenic Arabidopsis plants that express chimeric genes for transcription factors converted to dominant repressors, using Chimeric REpressor gene-Silencing Technology (CRES-T), and evaluated the salt tolerance of each line. The seeds of the CRES-T lines for ADA2b, Msantd, DDF1, DREB26, AtGeBP, and ATHB23 exhibited higher germination rates than Wild type (WT) and developed rosette plants under up to 200 mM NaCl or 400 mM mannitol. WT plants did not grow under these conditions. In these CRES-T lines, the expression patterns of stress-related genes such as RD29A, RD22, DREB1A, and P5CS differed from those in WT plants, suggesting the involvement of the six transcription factors identified here in the stress response pathways regulated by the products of these stress-related genes. Our results demonstrate additional proof that CRES-T is a superior tool for revealing the function of transcription factors.
Keywords: CRES-T; osmotic stress; repressor; salt stress; stress tolerance; transcription factors CRES-T; osmotic stress; repressor; salt stress; stress tolerance; transcription factors

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MDPI and ACS Style

Kazama, D.; Itakura, M.; Kurusu, T.; Mitsuda, N.; Ohme-Takagi, M.; Tada, Y. Identification of Chimeric Repressors that Confer Salt and Osmotic Stress Tolerance in Arabidopsis. Plants 2013, 2, 769-785. https://doi.org/10.3390/plants2040769

AMA Style

Kazama D, Itakura M, Kurusu T, Mitsuda N, Ohme-Takagi M, Tada Y. Identification of Chimeric Repressors that Confer Salt and Osmotic Stress Tolerance in Arabidopsis. Plants. 2013; 2(4):769-785. https://doi.org/10.3390/plants2040769

Chicago/Turabian Style

Kazama, Daisuke, Masateru Itakura, Takamitsu Kurusu, Nobutaka Mitsuda, Masaru Ohme-Takagi, and Yuichi Tada. 2013. "Identification of Chimeric Repressors that Confer Salt and Osmotic Stress Tolerance in Arabidopsis" Plants 2, no. 4: 769-785. https://doi.org/10.3390/plants2040769

APA Style

Kazama, D., Itakura, M., Kurusu, T., Mitsuda, N., Ohme-Takagi, M., & Tada, Y. (2013). Identification of Chimeric Repressors that Confer Salt and Osmotic Stress Tolerance in Arabidopsis. Plants, 2(4), 769-785. https://doi.org/10.3390/plants2040769

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