論文 - 詳細
| RRC ID | 60030 |
|---|---|
| 著者 | Ota R, Ohkubo Y, Yamashita Y, Ogawa-Ohnishi M, Matsubayashi Y. |
| タイトル | Shoot-to-root mobile CEPD-like 2 integrates shoot nitrogen status to systemically regulate nitrate uptake in Arabidopsis. |
| ジャーナル | Nat Commun |
| Abstract |
Plants modulate the efficiency of root nitrogen (N) acquisition in response to shoot N demand. However, molecular components directly involved in this shoot-to-root communication remain to be identified. Here, we show that phloem-mobile CEPD-like 2 (CEPDL2) polypeptide is upregulated in the leaf vasculature in response to decreased shoot N status and, after translocation to the roots, promotes high-affinity uptake and root-to-shoot transport of nitrate. Loss of CEPDL2 leads to a reduction in shoot nitrate content and plant biomass. CEPDL2 contributes to N acquisition cooperatively with CEPD1 and CEPD2 which mediate root N status, and the complete loss of all three proteins severely impairs N homeostasis in plants. Reciprocal grafting analysis provides conclusive evidence that the shoot CEPDL2/CEPD1/2 genotype defines the high-affinity nitrate uptake activity in root. Our results indicate that plants integrate shoot N status and root N status in leaves and systemically regulate the efficiency of root N acquisition. |
| 巻・号 | 11(1) |
| ページ | 641 |
| 公開日 | 2020-1-31 |
| DOI | 10.1038/s41467-020-14440-8 |
| PII | 10.1038/s41467-020-14440-8 |
| PMID | 32005881 |
| PMC | PMC6994653 |
| MeSH | Arabidopsis / genetics Arabidopsis / metabolism* Arabidopsis Proteins / genetics Arabidopsis Proteins / metabolism* Biological Transport Gene Expression Regulation, Plant Glutaredoxins / genetics Glutaredoxins / metabolism* Nitrates / metabolism* Plant Leaves / genetics Plant Leaves / metabolism Plant Roots / genetics Plant Roots / metabolism* Plant Shoots / genetics Plant Shoots / metabolism* |
| IF | 11.878 |
| 引用数 | 7 |
| 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 | X(Twitter) |
| 各媒体での言及数の合計 | 20 |
| 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 | |
| シロイヌナズナ / 植物培養細胞・遺伝子 | pst10389, pst11057, pst18898 |