AtSTOP1 regulates multiple genes critical for aluminum and proton resistance in Arabidopsis roots
-
- Sawaki Yoshiharu
- Fac. of Appl. Biol. Sci., Gifu Univ.
-
- Iuchi Satoshi
- BRC, RIKEN
-
- Kobayashi Yasufumi
- Fac. of Appl. Biol. Sci., Gifu Univ.
-
- Sakurai Nozomu
- Genome Biotech. KDRI
-
- Kobayashi Yuriko
- BRC, RIKEN
-
- Shibata Daisuke
- Genome Biotech. KDRI
-
- Kobayashi Masatomo
- BRC, RIKEN
-
- Koyama Hiroyuki
- Fac. of Appl. Biol. Sci., Gifu Univ.
Bibliographic Information
- Other Title
-
- シロイヌナズナSTOP1転写因子は酸耐性とアルミニウム耐性に関わる複数の遺伝子を制御する
Abstract
The Arabidopsis mutant stop1 (for sensitive to proton rhizotoxicity1) carries a missense mutation at an essential domain of the histidine-2-cysteine-2 zinc finger protein STOP1. Transcriptome analyses revealed that various genes were down-regulated in the mutant, indicating that STOP1 is involved in signal transduction pathways regulating aluminum (Al)- and proton-responsive gene expression. Critical genes for Al tolerance in Arabidopsis, AtALMT1, ALS3 and AtMATE co-down-regulated in the mutant. On the other hand, various gene belong to ion homeostasis, pH-regulating pathways and cell wall stabilization process were down regulated in the mutant. CIPK23, regulating a major K transporter, and a sulfate transporter, SULT3;5, were down-regulated in the mutant. In addition, integral profiling of the metabolites and transcripts revealed that pH-regulating metabolic pathways, such as the GABA shunt and biochemical pH stat pathways, are down-regulated in the mutant. These changes could explain the proton hypersensitivity of the mutant and would make the mutant more susceptible in acid soil stress than other Al-hypersensitive knock-out lines.
Journal
-
- Plant and Cell Physiology Supplement
-
Plant and Cell Physiology Supplement 2010 (0), 0067-0067, 2010
The Japanese Society of Plant Physiologists
- Tweet
Details 詳細情報について
-
- CRID
- 1390282680608070784
-
- NII Article ID
- 130006992532
-
- Data Source
-
- JaLC
- CiNii Articles
-
- Abstract License Flag
- Disallowed