Post-Transcriptional Control of SULTR1;1 and SULTR1;2 High-Affinity Sulfate Transporters in Arabidopsis
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- Yoshimoto Naoko
- RIKEN Plant Science Center
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- Inoue Eri
- RIKEN Plant Science Center
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- Watanabe-Takahashi Akiko
- RIKEN Plant Science Center
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- Saito Kazuki
- RIKEN Plant Science Center Graduate School of Pharmaceutical Sciences, Chiba Univ.
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- Takahashi Hideki
- RIKEN Plant Science Center
Bibliographic Information
- Other Title
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- シロイヌナズナの高親和型硫酸イオントランスポーターSULTR1;1、SULTR1;2の転写後制御
Abstract
SULTR1;1 and SULTR1;2 are two high-affinity sulfate transporters co-localizing at epidermis and cortex of Arabidopsis roots for the uptake of sulfate from the environment during sulfur limitation (-S). Previously, we have reported that -S induction of SULTR1;1 and SULTR1;2 transcripts are dependent on their promoters activities. To analyze post-transcriptional regulation of SULTR1;1 and SULTR1;2, we generated transgenic plants that rescue the sulfate uptake capacity of sultr1;1 sultr1;2 double knockout mutant by constitutively over-expressing SULTR1;1 or SULTR1;2 under the control of 35S RNA promoter. In transgenic plants, SULTR1;1 mRNA was expressed only in roots, and SULTR1;1 protein content was increased by -S. By contrast, SULTR1;2 mRNA was expressed in both roots and leaves, however SULTR1;2 protein was accumulated exclusively in roots during -S. The present study suggested existence of post-transcriptional mechanisms for the control of SULTR1;1 and SULTR1;2, playing important roles in optimizing the uptake of sulfate during -S.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2007 (0), 291-291, 2007
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390282680609061376
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- NII Article ID
- 130006994002
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed