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| 文献 | ||
|---|---|---|
| 著者 | Cui H,Levesque MP,Vernoux T,Jung JW,Paquette AJ,Gallagher KL,Wang JY,Blilou I,Scheres B,Benfey PN | |
| タイトル | An evolutionarily conserved mechanism delimiting SHR movement defines a single layer of endodermis in plants. | |
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Abstract: Intercellular protein movement plays a critical role in animal and plant development. SHORTROOT (SHR) is a moving transcription factor essential for endodermis specification in the Arabidopsis root. Unlike diffusible animal morphogens, which form a gradient across multiple cell layers, SHR movement is limited to essentially one cell layer. However, the molecular mechanism is unknown. We show that SCARECROW (SCR) blocks SHR movement by sequestering it into the nucleus through protein-protein interaction and a safeguard mechanism that relies on a SHR/SCR-dependent positive feedback loop for SCR transcription. Our studies with SHR and SCR homologs from rice suggest that this mechanism is evolutionarily conserved, providing a plausible explanation why nearly all plants have a single layer of endodermis. |
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| 掲載誌 | Science | |
| Country | USA | |
| 刊数 | 316 | |
| ページ | 421-5 | |
| 発刊年 | 2007 | |
| PubMed ID | 17446396 | |
| PubMed Central ID | - | |
| DOI | 10.1126/science.1139531 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | SCR SCR1 SHR1 SHR2 | |
| INSD | - | |
| 系統 |
野生イネ コアコレクション |
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| 突然変異系統(遺伝研 Collection) | - | |
| 種子不稔系統 | - | |
| 致死変異体系統 | - | |
|
組織別発生段階 - 突然変異系統(遺伝子) |
- | |
| 栽培イネ品種(遺伝研 Collection) | - | |
| 組織別発生段階 | - | |
