論文 - 詳細
| RRC ID | 30994 |
|---|---|
| 著者 | Suzuki W, Konishi M, Yanagisawa S. |
| タイトル | The evolutionary events necessary for the emergence of symbiotic nitrogen fixation in legumes may involve a loss of nitrate responsiveness of the NIN transcription factor. |
| ジャーナル | Plant Signal Behav |
| Abstract |
NODULE INCEPTION (NIN) is a key regulator of the symbiotic nitrogen fixation pathway in legumes including Lotus japonicus. NIN-like proteins (NLPs), which are presumably present in all land plants, were recently identified as key transcription factors in nitrate signaling and responses in Arabidopsis thaliana, a non-leguminous plant. Here we show that both NIN and NLP1 of L. japonicus (LjNLP1) can bind to the nitrate-responsive cis-element (NRE) and promote transcription from an NRE-containing promoter as did the NLPs of A. thaliana (AtNLPs). However, differing from LjNLP1 and the AtNLPs that are activated by nitrate signaling through their N-terminal regions, the N-terminal region of NIN did not respond to nitrate. Thus, in the course of the evolution of NIN into a transcription factor that functions in nodulation in legumes, some mutations might arise that converted it to a nitrate-insensitive transcription factor. Because nodule formation is induced under nitrogen-deficient conditions, we speculate that the loss of the nitrate-responsiveness of NIN may be one of the evolutionary events necessary for the emergence of symbiotic nitrogen fixation in legumes. |
| 巻・号 | 8(10) |
| 公開日 | 2013-10-1 |
| DOI | 10.4161/psb.25975 |
| PII | 25975 |
| PMID | 24270631 |
| PMC | PMC4091089 |
| MeSH | Arabidopsis / metabolism* Arabidopsis Proteins / metabolism* Fabaceae / metabolism* Gene Expression Regulation, Plant Nitrogen Fixation / physiology Symbiosis / physiology |
| IF | 1.671 |
| 引用数 | 23 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | Patent(IFI CLAIMS) |
| 各媒体での言及数の合計 | 1 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ミヤコグサ・ダイズ | Lotus japonicus |